Codan Radio Communications VT-3-150-SN VT-3/140-SN & VT-3/160-SN VHF TRANSMITTERS User Manual IM21 VT3150AMP VHF Tx Amplifier Manual

Codan Radio Communications VT-3/140-SN & VT-3/160-SN VHF TRANSMITTERS IM21 VT3150AMP VHF Tx Amplifier Manual

VHF Tx Manual including schematics and parts list

MT-3 RADIO SYSTEMSVHF TRANSMITTERINSTRUCTION MANUALVT-3132 - 174 MHzCovers model:VT-3/140-SWA2, VT-3/160-SWA2VT-3/140-SWA8, VT-3/160-SWA8VT-3/140-SNA2, VT-3/160-SNA2VT-3/140-SNA8, VT-3/160-SNA8Copyright © 1998 Daniels Electronics Ltd. All rights reserved. No part of this publication may bereproduced, stored in a retrieval system or transmitted in any form or by any means, electronic,mechanical, photocopying, recording or otherwise, without the prior written consent of DanielsElectronics Ltd.DE™ is a registered trademark of Daniels Electronics Ltd. registered in the United States Patentand Trademark Office.Issue: 3 Previous Issue: 2Issue Date: May 1998 Previous Issue Date:April 1997 Daniels Electronics Ltd.Printing Date: January 2001Victoria, B.C.Part No.: IM21-VT3150 PRINTED IN CANADA
ii VHF Enhanced Transmitter Instruction Manual VT-3 132 - 174 MHzNOTE:The user's authority to operate this equipment could be revoked through anychanges or modifications not expressly approved by Daniels Electronics Ltd.The design of this equipment is subject to change due to continuousdevelopment. This equipment may incorporate minor changes in detail from theinformation contained in this manual.
VHF Enhanced Transmitter Instruction Manual VT-3 132 - 174 MHziiiTABLE OF CONTENTSPage1 GENERAL................................................................................................................. 1-11.1Introduction.................................................................................................... 1-11.2 Manual Organization...................................................................................... 1-11.3 VT-3 132 - 174 MHz Transmitter Family Models.......................................... 1-21.4Performance Specifications............................................................................. 1-31.4.1 General............................................................................................... 1-31.4.2 Audio Specifications........................................................................... 1-41.4.3 Physical Specifications....................................................................... 1-52SYSTEM OVERVIEW.............................................................................................. 2-12.1Transmitter Operation..................................................................................... 2-12.2 Frequency Selection........................................................................................ 2-32.2.1Synthesizer Transmitter.................................................................... 2-32.3Transmitter Assembly and Adjustment........................................................... 2-42.3.1Complete Transmitter Alignment........................................................ 2-42.3.2 Frequency Change.............................................................................. 2-52.3.3 Output Power Adjustment................................................................... 2-52.3.4Deviation Setting................................................................................. 2-62.3.5Setting RF Alarm Thresholds............................................................. 2-62.4Recommended Test Equipment List................................................................ 2-62.5 Repair Note..................................................................................................... 2-72.6 Printed Circuitboard Numbering Convention.................................................. 2-73 ILLUSTRATIONS..................................................................................................... 3-13.1 MT-3 Transmitter Front Panel........................................................................ 3-13.2 MT-3 Transmitter Case - Exploded View....................................................... 3-24 PARTS LIST.............................................................................................................. 4-15 REVISION HISTORY............................................................................................... 5-1MODULE MANUALSTransmitter Main Board Instruction Manual ......................................IM20-MT3TXMNVHF Amplifier Instruction Manual VT-3 132 - 174 MHz................IM21-VT3150AMPEnhanced Synthsizer Instruction Manual OS(R/T)-3A/H 29-470 MHz .. IM10-OS3AHVHF Transmitter Channel Designation Table ..................................... IM21-VT3150CT
RF Exposure WarningRF Exposure WarningThis transmitting equipment conforms to SAR (Specific Absorption Rate) limits regarding exposure of humanbeings to radio frequency electromagnetic energy, as defined in the following national and international standardsand guidelines:1. Industry Canada Radio Standards Specification 102 (RSS-102), Evaluation Procedure for Mobile andPortable Radio Transmitters with respect to Health Canada’s Safety Code 6 for Exposure of Humans toRadio Frequency Fields;2. Health Canada Safety Code 6, Limits of Human Exposure to Radiofrequency Electromagnetic Fields in theFrequency Range from 3 kHz to 300 GHz1;3. United States Federal Communications Commission, Code of Federal Regulations; 47 CFR Part 1,§ 1.1310 Radiofrequency radiation exposure limits; and4. American National Standards Institute (ANSI) criteria for localized SAR in Section 4.2 of “IEEE Standardfor Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to300 GHz”2.Notes: A. The SAR limit for uncontrolled exposure of persons not classed as RF and microwave exposedworkers (including the general public) for transmitter equipment operating below 10 GHz, as definedin the references above, is 2 W/m2 (0.2 mW/cm2).B. This transmitting equipment is designed for use with an outdoor antenna with a characteristic antennagain of 10 dBi, typically mounted at a significant height above ground to provide for adequate signalcoverage. To ensure that the general public is not exposed to a power density above the recommendedlimit of 2 W/m2 (0.2 mW/cm2), the equipment must be installed such that the following minimum safedistances from the antenna are maintained:6.3 m (20.7 ft) when configured with 100 W PA3.5 m (11.3 ft) when configured with 30 W PA1.8 m (5.9 ft) standalone (i.e. no PA) 8 WC. The following power density formula has been utilized in determining minimum safe distances:24RPGSπ=where: S = Power density (in appropriate units, e.g. mW/cm2)P = Power input to the Antenna (in appropriate units, e.g., mW)G = Power gain of the antenna in the direction of interest relative to an isotropic radiatorR = Distance to the center of radiation of the antenna (appropriate units, e.g., cm) 1 Minister of Public Works and Government Services, Canada 1999, Cat. H46- 2/ 99- 237E, ISBN 0- 662- 28032- 62 ANSI/IEEE C95.1–1992, Copyright 1992 by the Institute of Electrical and Electronics Engineers, Inc., New York, New York 10017
VHF Enhanced Transmitter Instruction Manual VT-3 132 - 174 MHz1-11GENERAL1.1 IntroductionThe VT-3 132 - 174 MHz Transmitter is a low power, synthesized FM transmitter capable ofoperating in 12.5 kHz or 25/30 kHz channels. The transmitter operates continuous duty in one oftwo frequency bands: 132 to 150 MHz or 150 to 174 MHz and its output power is continuouslyadjustable from 0.5 T0 2.0 or 2.0 to 8.0 Watts. A modular design allows each of the transmitter'smodules; MT-3 Transmitter Board, MT-3 Audio Processor, VT-3/150 Amplifier, and OS-3H150Synthesizer Module to be individually assembled and tested. This facilitates construction, tuning,maintenance as well as troubleshooting procedures. The synthesizer module can be programmed tohave up to 16 channels exclusive to one frequency band.The VT-3 132 - 174 MHz Transmitter is designed to interface with Daniels Electronics' MT-3Repeater System while maintaining MT-2 System compatibility. Both repeater systems arecharacterized by dependable, low maintenance performance under the most severe environmentalconditions. 1.2Manual OrganizationThe organization of this manual reflects the modular makeup of the VT-3 product line. Eachmodule is fully described within its respective submanual, all of which are contained within thisdocument. In general, each submanual contains:1. A functional description and specification summary,2. a detailed technical description (Theory of Operation) and3. assembly, setup and alignment procedures relevent to that particular module.The module manuals are as follows.Note: material presented in a given "sub-manual" may include information related to other moduleversions not directly appllicable to the VT-3 132 - 174 MHz Transmitter family (eg, the OS-3HSynthesizer Instruction Manual covers models from 29 MHz to 512 MHz).VHF Enhanced Transmitter Instruction Manual: This manual provides an overview of the completetransmitter, manual organization and assembly in terms of the other modules.MT-3 Transmitter Main Board Instruction Manual: This manual pertains to the audio processormodule, transmitter Main Board and Front Panel Board. Most of the user selectable options areaccessed within the Transmitter Main Board module, including channel selection. Since all externalconnections (including power and signal lines) are made to the Transmitter Main Board, most of thematerial pertaining to transmitter operation and installation is found here.
1-2 VHF Enhanced Transmitter Instruction Manual VT-3 132 - 174 MHzVHF Amplifier Instruction Manual VT-3 132 - 174 MHz : The amplifier module provides the finalstages of RF power amplification and harmonic filtering for the transmitter. This manual is intendedprimarily as a reference since the amplifier module is adjusted at the factory.Enhanced Synthesizer Instruction Manual OS(R/T)-3(A/H) 132 - 470 MHz: This manual pertainsto the enhanced synthesizer module.VHF Transmitter Channel Designation Table VT-3 132 - 174 MHz: This document relatesoperating frequency to the transmitter channel number (see section 2.1).1.3VT-3 132 - 174 MHz Transmitter Family ModelsThere are 8 distinct models in the VT-3/150 Synthesized Transmitter family each with differentbands of operation, channel spacing and/or power outputs. The 8 models are as follows:• VT-3/140-SNA2- synthesized, 132-150 MHz band, 5.0/6.25 kHz channels, 0.5-2.0 W• VT-3/140-SWA2 - synthesized, 132-150 MHz band, 5.0/6.25 kHz channels, 0.5-2.0 W• VT-3/140-SNA8- synthesized, 132-150 MHz band, 5.0/6.25 kHz channels, 2.0-8.0 W• VT-3/140-SWA8 - synthesized, 132-150 MHz band, 5.0/6.25 kHz channels, 2.0-8.0 W• VT-3/160-SNA2- synthesized, 150-174 MHz band, 5.0/6.25 kHz channels, 0.5-2.0 W• VT-3/160-SWA2 - synthesized, 150-174 MHz band, 5.0/6.25 kHz channels, 0.5-2.0 W• VT-3/160-SNA8- synthesized, 150-174 MHz band, 5.0/6.25 kHz channels, 2.0-8.0 W• VT-3/160-SWA8 - synthesized, 150-174 MHz band, 5.0/6.25 kHz channels, 2.0-8.0 WThe transmitters' band of operation is determined by select components in the synthesizer moduleand the channel width is determined by the roll-off of the splatter filter on the MT-3 AudioProcessor.
VHF Enhanced Transmitter Instruction Manual VT-3 132 - 174 MHz1-31.4 Performance Specificationsinvisible text1.4.1GeneralThe following is a general set of specifications for the generic VT-3/150 transmitter. Additionalspecifications, specific to individual modules may be found in their respective submanuals.Type:MT-3 Series Transmitter.Family:VT-3/150.Compatibility:MT-2 Series and MT-3 Series Radio Systems.Frequency Range:132 to 174 MHz.RF Power Output:Adjustable: 0.5 to 2.0 W and 2.0 to 8.0 W.Modulation:11K0F3E or 16K0F3E (Frequency Modulation).System Impedance:50 Ω; Type N connector.Duty Cycle:100%; Continuous operation from -40°C to +60°C.Spurious Emissions:More than 80 dB below carrier.Harmonic Emissions:More than 90 dB below carrier.Transmitter Mismatch Protection:20:1 VSWR at all phase angles.Transmitter Alarm:Forward power sense and reverse VSWR;• open collector output (separate or 'OR'edconfiguration);• linear output (separate lines only).Operating Temperature Range:-30˚C to +60˚C, optional -40˚C temperature test.Operating Humidity:95% RH (non-condensing) at +25°C.Operating Voltage:+13.8 Vdc Nominal (range +11 to +16 Vdc),+9.5 Vdc Regulated.Transmit Current:2.5 Amps at 8 Watts RF Power Output.Front Panel Controls:NORM (repeat mode), OFF, and KEY TX (Tx on).
1-4 VHF Enhanced Transmitter Instruction Manual VT-3 132 - 174 MHzPTT Activation:•Active to ground with or without time-out-timer;•Microphone activated with or without time-out-timer;•Front Panel switch:KEY TX - without time-out-timer;•NORM - with or without time-out-timer.•Isolated (optional relay) with or without time-out-timer.PTT Time-Out-Timer:Selectable from 1 sec. to 8 hrs. (factory set 5 min.).1.4.2Audio SpecificationsAudio Input:Balanced 600 ohm or unbalanced (optional).Input level sensitivity, -25 dBm to 0 dBm.Audio Response:Pre-emphasis (6 dB per octave); +1.0 to -2.0 dBfrom 300 Hz to 3 kHz;Flat Audio Response:+1 to -1 dB from 100 Hz to 3 kHz.Audio Deviation:Preset to ±3.0 kHz with a 1 kHz tone.Subtone Audio Input 1:0.5 Vpp at 200 Hz for ±500 Hz deviation(internally adjustable).Subtone Audio Input 1 Frequency range:60 Hz to 300 Hz.Subtone Audio Input 2:0.5 Vpp at 100 Hz for ±500 Hz deviation(internally adjustable).Subtone Audio Input 2 Frequency range:DC to 150 Hz.Direct Modulation Input:0.5 Vrms at 1 kHz or ±3 kHz deviation.Direct Modulation Frequency range:DC to 5 kHz.Audio Distortion:Less than 2.5% THD; 1 kHz tone at 1.5 kHz or3 kHz deviation (-40°C to +60°C).Hum and Noise:Better than 55 dB(test receiver band limited: 400 Hz to 30 kHz).
VHF Enhanced Transmitter Instruction Manual VT-3 132 - 174 MHz1-51.4.3Physical SpecificationsPhysical Dimensions:Width: Height: Depth:7.1 cm (2.8 in) 12.8 cm (5.05 in) 19 cm (7.5 in)Module Weight: 1.5 kg (3.3 lbs)Corrosion Prevention:Anodized aluminum construction. Stainless steelhardware. Selectively conformal coated glass epoxy 2and 4 layer printed circuitboards. Gold platedmodule connectors.Module Design:Compact Eurostandard modular design. Plug-inmodules mate with Daniels standard M3 repeatersubrack. Subracks / modules comply with IEEE1101, DIN 41494 and IEC 297-3 (mechanical size /modular arrangement).External Connections:RF Connection: type N connector located on thetransmitter module front panel. MotherboardConnections (Audio, Power, and Control) are madethrough a 48 pin, gold plated, type F connector on therear of the transmitter module. User connectionmade through mated "mother board" assembly of therepeater subrack. Type F standard connectorcomplies with DIN 41612 Level 2 (200 matingcycles, 4 day 10 ppm SO2 gas test with no functionalimpairment and no change in contact resistance).Handle Text Colour:Red.
VHF Enhanced Transmitter Instruction Manual VT-3 132 - 174 MHz2-12SYSTEM OVERVIEW2.1Transmitter OperationSeveral modules are integrated by the VT-3 Transmitter Main board to provide the completetransmitter. The Transmitter Main Board, Front Panel Board and Audio Processor are generic inthat they apply to all transmitter models. The Front Panel Board and Audio Processor are soldereddirectly to the Transmitter Main Board and are treated collectively in the Transmitter Main BoardManual. The operating frequency and power range is determined by the choice of Amplifier andFrequency Synthesizer Module, which plugs in to the Transmitter Main Board and can be changedwith minimal effort. Circuitry and jumpers on the Transmitter Main Board control the operation ofall modules and the operation of the transmitter, overall. Technical details and a completedescription of transmitter operation can be found in the Transmitter Main Board Manual.The VT-3 132 - 174 MHz transmitter requires two power supplies; a regulated +9.5 Vdc supplyand a +13.8 Vdc supply, the latter of which is connected only to the Amplifier Module. The(nominally) +13.8 Vdc supply's range is +11 Vdc to +16 Vdc. For the 0.5 to 2.0 Watttransmitters, there is no current drawn on the 13.8 Vdc supply. For the 2.0 to 8.0 Watt transmitters,the current drawn from the +13.8 Vdc supply (while transmitting at the rated power) isapproximately 1000 mA with temperature, operating frequency and power supply voltage. Thecurrent drawn by the 13.8 Vdc line should not exceed 1500 mA. The +9.5 Vdc current drawn byall transmitter models while transmitting at the rated power is approximately 1300 mA and shouldnot exceed 1500 mA. The VT-3 Transmitter has four different standby modes that trade-offstandby current consumption for start-up speed. The standby modes are determined by threejumpers (refer to the MT-3 Transmitter Main Board Manual): jumper J6 which always turns on the'+9.5 Vdc Switched' supply, jumper J7 which selects the power source for the MT-3 AudioProcessor and jumper J18 which selects the enable line for the OS-3H150 Synthesizer Module. • MODE 1:Jumper J6 out- the audio processor is switched by a PTT signal- the synthesizer module is switched by a PTT signal- standby current:Typically 7 mA- start-up time:Typically 50 ms
2-2VHF Enhanced Transmitter Instruction Manual VT-3 132 - 174 MHz• MODE 2:Jumper J6 in, jumper J7 in the 'y' position, jumper J18 in the 'x' position- the audio processor is switched by a PTT signal- the synthesizer module is enabled all of the time- standby current:Typically 65 mA- start-up time:Typically 25 ms• MODE 3:Jumper J6 in, jumper J7 in the 'x' position, jumper J18 in the 'y' position- the audio processor is enabled all of the time- the synthesizer module is switched by a PTT signal- standby current:Synthesized - not used in this mode- start-up time:Synthesized - not used in this mode• MODE 4:Jumper J6 in, jumper J7 in the 'x' position, jumper J18 in the 'x' position- the audio processor is enabled all of the time- the synthesizer or crystal module is enabled all of the time- standby current:Typically 90 mA- start-up time:Typically 10 msThe front panel depicted in Section 3.1 bears a DPDT toggle switch (mounted on the Front PanelBoard; see the Transmitter Main Board Manual) which controls the operation of the VT-3 132 -174 MHz Transmitter. When in the 'OFF' position, the transmitter is turned off; however, the +13.8Vdc remains on the Transmitter Main Board terminals and on the Amplifier Module. When in the'KEYED' position, +9.5 Vdc is supplied to the transmitter circuitry and the transmitter iscontinously transmitting. When this switch is in the 'NORM' position, +9.5 Vdc is supplied to thetransmitter circuitry although the transmitter remains quiescent until keyed from one of severalPush-To-Talk (hereafter PTT) inputs. The red indicator LED is illuminated during transmit.Microphone, RF output and optional reference input are mounted on the front panel; power andother signal connections are provided by a type 'F' connector at the rear of Transmitter Main Board.Details on their function can be found in the Transmitter Main Board Manual.
VHF Enhanced Transmitter Instruction Manual VT-3 132 - 174 MHz2-32.2Frequency Selectioninvisible text2.2.1Synthesizer TransmitterEight backplane connections are used to communicate with the synthesizer unit. Pins D28, D30,and D32 are used (in house) to program the synthesizer. Channel select lines (pins D20, D22,D24, and D26) are used once the synthesizer is programmed to select one of 16 channels. If thechannel select lines are all low (channel 0) the frequency for the synthesizer is read from switchesFSW1 (most significant), FSW2, FSW3, and FSW4 (least significant). Refer to the VT-3/150Channel Designation Table Manual for the simplified channel number and frequency information.For all VT-3/140 models (132-150 MHz) with:• 5 kHz channel increments (BCD settings from 0000 to 4999):CHNL#= Txfrequency−128 MHz5 kHz      orTxfrequency= CHNL#× 5 kHz[ ]+128 MHz• 6.25 kHz channel increments (BCD settings from 5000 to 9999):CHNL#= Txfrequency−128 MHz6.25 kHz      +5000orTxfrequency= CHNL#-5000( )×6.25 kHz[ ]+128 MHzFor all VT-3/160 models (150-174 MHz) with:• 5 kHz channel increments (BCD settings from 0000 to 4999):CHNL#= Txfrequency−150 MHz5 kHz      orTxfrequency= CHNL#× 5 kHz[ ]+150 MHz• 6.25 kHz channel increments (BCD settings from 5000 to 9999):CHNL#= Txfrequency−150 MHz6.25 kHz      +5000orTxfrequency= CHNL#-5000( )×6.25kHz[ ]+150 MHz
2-4VHF Enhanced Transmitter Instruction Manual VT-3 132 - 174 MHzA channel can be selected from a set of 15 (maximum possible) factory programmed channels bythe four channel select lines available at the rear 'F' connector on the Transmitter Main Board. Asingle user selectable channel is set by switches located on the Transmitter Main Board. See theTransmitter Main Board Manual for details.2.3Transmitter Assembly and AdjustmentAll modules are mounted on the Transmitter Main Board which then forms a single assembly. Anenclosure is formed by an extruded aluminum shell that slides over the Transmitter Main Board asillustrated in section 3.2). This shell also serves as a heatsink to remove heat from the Amplifiermodule and for this reason, it is important that the four screws that bond the shell to the amplifiermodule (Screws B in Section (3-2)) be installed before prolonged operation of the transmitter.Moreover, the surface of the Amplifier module that contacts the shell should be clean and free offoreign material. The enclosure is completed by the installation of front and rear plates which arefastened to the Transmitter Main Board (see Transmitter Main Board Manual for parts lists).Transmitter alignment is performed on a module by module basis and detailed steps are provided inthe respective manuals. Alignment is simplified by using an SR-3 Sub rack, SM-3 System Monitor,and RF extender cable to provide transmitter power and signal interconnection. Alternatively, +9.5Vdc and +13.8 Vdc, as well as any required test signals, may be applied directly to the individualmodules. Refer to the corresponding manuals for details.2.3.1Complete Transmitter AlignmentA complete Transmitter Alignment is performed at the factory and should not be required undernormal circumstances. A large change in operating frequency, as discussed in the next section,may require a complete realignment operation. This operation requires that all the transmittermodules be aligned on a per module basis in the following order.Sequence Module Manual Reference(1)Transmitter Main Board Section 2.2 of this manual,Transmitter Main Board Manual.(2) Synthesizer Synthesizer Manual(3)AmplifierAmplifier Manual(4) Audio ProcessorTransmitter Main Board Manual
VHF Enhanced Transmitter Instruction Manual VT-3 132 - 174 MHz2-52.3.2Frequency ChangeThe transmitter is initially aligned at the factory for the frequency stamped on the 'Factory SetOperating Frequency' label (see section 3.1). This label should list the frequency at which the lastcomplete transmitter alignment was performed. For a small frequency change, a simple channelchange (see section 2.2) may be all that is required. A larger frequency change may involve therealignment of other modules. The frequency change in question is the accumulated frequencychange in relation to the frequency stamped on the label. For example, if the frequency is changedby 0.5 MHz from that stamped on the label, then a second frequency change of 1 MHz in the samedirection would result in a total change of 1.5 MHz. The action taken would be on the basis of the1.5 MHz value. Failure to perform a realignment after a large frequency change could result inunreliable transmitter operation or transmitter operation that does not conform to the publishedspecifications. The allowable frequency change is summarized below.Note: It is advisable to confirm these frequency ranges with the individual module manuals,notably the Amplifier and Synthesizer Module, as they are subject to change with updatedversions. The values in the module manuals take precedent over those tabulated.FOR MODEL ALL VT-3 132 - 174 MHz TransmittersSize of Frequency Change Modules to be Alignedless than ± 0.2 MHzTransmitter Main Board (Channel Change)between ± 0.2 and ± 0.5 MHzTransmitter Main Board (Channel Change),Audio Processor (see section 2.3.4)between ± 0.5 and ± 1.0 MHzTransmitter Main Board (Channel Change),Audio Processor (see section 2.3.4), Synthesizercheck RF alarm thresholds (section 2.3.5)± 1.0 MHz or greaterComplete alignment2.3.3 Output Power AdjustmentThe RF power output of the amplifier is set to its rated value of 2.0 Watts or 8.0 Watts at thefactory. This should not require adjustment under normal circumstances. However, should it benecessary to correct the output power, the 'Output Power Adjustment' which is described in theAmplifier Manual can be adjusted accordingly. If the Synthesizer module is replaced, it is stronglyrecommended that the amplifer undergo a realignment as described in the Amplifier Module, unlessit is confirmed that the original and replacement Synthesizer module have identical output power(within ± 0.5 dBm).
2-6VHF Enhanced Transmitter Instruction Manual VT-3 132 - 174 MHz2.3.4Deviation SettingThe transmitter maximum deviation range is set by jumpers at the factory to ± 5.0 kHz for theVT-3 132 - 174 MHz transmitter. However, under some conditions such as a large change intransmitter operating frequency, the deviation control may need adjustment. The transmitterdeviation is dependent on the operating frequency and this dependency is likely to be more severe atthe band edges. For frequency changes exceeding ± 0.5 MHz, especially at the band edges, thedeviation should at least be checked and corrected if necessary. See the Audio Processor section ofthe Transmitter Main Board Manual for details on setting the transmitter deviation. Note that theadjustment of the balance compression levels, which is also discussed in the Audio Processoralignment section, is not required as this adjustment should not be affected by a change infrequency or deviation settings.2.3.5Setting RF Alarm ThresholdsThe VSWR and Forward Power Alarms are factory preset to give alarm conditions for a 3:1VSWR and 50 % forward power respectively. The Amplifier Manual describes how to adjust thesesettings, should different levels be required. If the alarm thresholds are crital to operation of aparticular installation and if the transmitter undergos a large change in frequency (see section 2.3.2above), the threshold alarm levels, particularly the VSWR alarm, should be checked.2.4 Recommended Test Equipment ListAlignment of the transmitter requires the following test equipment or its equivalent.Dual Power Supply:Regulated +9.5 Vdc at 2 A.Regulated +13.8 Vdc at 2 A - Topward TPS-4000Oscilloscope / Multimeter:Fluke 97 ScopemeterCurrent Meter: Fluke 75 multimeterRadio communications test set : Marconi Instruments 2955RVSWR 3:1 mismatch load:JFW 50T-035-3.0:1Alignment Tool:Johanson 4192It is recommended that the radio communications test set be frequency locked to an externalreference (WWVH, GPS, Loran C) so that the high stability oscillator may be accurately set towithin its ±1 ppm frequency tolerance.
VHF Enhanced Transmitter Instruction Manual VT-3 132 - 174 MHz2-72.5 Repair NoteThe transmitter is mainly made up of surface mount devices which should not be removed orreplaced using an ordinary soldering iron. Removal and replacement of surface mount componentsshould be performed only with specifically designed surface mount rework and repair stationscomplete with ElectroStatic Dissipative (ESD) protection.When removing Surface Mount Solder Jumpers, it is recommended to use solder braid in place ofmanual vacuum type desoldering tools when removing jumpers. This will help prevent damage tothe circuit boards.2.6Printed Circuitboard Numbering ConventionTo ease troubleshooting and maintenance procedures, Daniels Electronics Limited has adopted aprinted circuitboard (PCB) numbering convention in which the last two digits of the circuitboardnumber represent the circuitboard version. For example:• PCB number 43-912010 indicates circuitboard version 1.0;• PCB number 50002-02 indicates circuitboard version 2.0.All PCB's manufactured by Daniels Electronics are identified by one of the above conventions.
3 ILLUSTRATIONS3.1 MT-3 Transmitter Front Panel ELECTRONICS LTD.DANIELS TM3-1VHF Transmitter Instruction ManualVT3150M1ON / OFF SWITCHTYPE N RF OUTPUT JACKSMA REFERENCEINPUT JACKTRANSMIT INDICATOR LEDTRANSMITTER MODEL IDENTIFIERFACTORY SETOPERATINGFREQUENCYMICROPHONECONNECTORTRANSMITTERTXREFERENCEINPUTOFFNORMKEY TXMICRF OUTFREQUENCY (MHz)33.25000MADE IN CANADAVT-3/160-SWA8MADE IN CANADAMADE IN CANADARED TEXT FREQUENCY (MHz)160.00000
3 FINGER GASKET (2)Instructions1. Remove the four screws (A) in the Front panel.2. Remove the four screws (B) on the side of the Transmitter Case.AAAABBBBMT3TXM2BMT-3 Transmitter Case - Exploded View3.2ELECTRONICS3-2DANIELSDE VHF Transmitter Instruction Manual
VHF Enhanced Transmitter Instruction Manual VT-3 132 - 174 MHz4-14PARTS LISTDescription Part No. Qty.LABEL/LEXAN, 14HP, VHF: RED 3536-10111405 1
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VHF Enhanced Transmitter Instruction Manual VT-3 132 - 174 MHz5-15REVISION HISTORYISSUE DATE DESCRIPTION AND (REASON) 3 May 98 •Manual formatted to modular style. All previous revision history inissue 2.
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MT-3 RADIO SYSTEMSTRANSMITTERMAIN BOARDINSTRUCTION MANUALCovers:Version 1.7 of the Transmitter Main BoardVersion 1.6 & 1.8 of the FM Audio Processor BoardCopyright © 1998 Daniels Electronics Ltd. All rights reserved. No part of this publication may bereproduced, stored in a retrieval system or transmitted in any form or by any means, electronic,mechanical, photocopying, recording or otherwise, without the prior written consent of DanielsElectronics Ltd.DE™ is a registered trademark of Daniels Electronics Ltd. registered in the United States Patentand Trademark Office.Issue: 3 Previous Issue: 2Issue Date:November 1998 Previous Issue Date: May 1998 Daniels Electronics Ltd.Printing Date: January 2001Victoria, B.C.Part No.: IM20-MT3TXMN PRINTED IN CANADA
iiTransmitter Main Board Instruction ManualNOTE:The user's authority to operate this equipment could be revoked through anychanges or modifications not expressly approved by Daniels Electronics Ltd.The design of this equipment is subject to change due to continuousdevelopment. This equipment may incorporate minor changes in detail from theinformation contained in this manual.
Transmitter Main Board Instruction ManualiiiTABLE OF CONTENTSPage1 GENERAL...................................................................................................................1-11.1Introduction....................................................................................................1-11.2Performance Specifications.............................................................................1-11.2.1 General...............................................................................................1-11.2.2 Audio Specifications...........................................................................1-22 THEORY OF OPERATION........................................................................................2-12.1Transmitter Main Board..................................................................................2-12.1.1 General...............................................................................................2-12.1.2Transmitter Push-To-Talk...................................................................2-12.1.2.1 Microphone PTT....................................................................2-12.1.2.2 PTT With Time-Out-Timer.....................................................2-22.1.2.3 PTT No Time-Out-Timer........................................................2-22.1.2.4 Optional Relay........................................................................2-22.1.2.5 PTT Output.............................................................................2-32.1.2.6 PTT Voltage Switching...........................................................2-32.1.2.7Transmitter Standby Modes....................................................2-32.1.3 Audio Circuits.....................................................................................2-42.1.3.1 Microphone Audio..................................................................2-52.1.3.2Received Audio.......................................................................2-52.1.4 Channel Selection...............................................................................2-52.1.4.1 Synthesized Transmitter..........................................................2-52.1.4.2 Crystal Controlled Transmitter................................................2-62.1.5Amplifier Circuits...............................................................................2-62.1.6Time-Out-Timer Circuitry...................................................................2-62.2 MT-3 Front Panel Board................................................................................2-82.3 MT-3 Audio Processor (Version 1.6).............................................................2-82.3.1 General...............................................................................................2-82.3.2 Power Requirements...........................................................................2-82.3.3 Audio Processor Turn-on Time..........................................................2-92.3.4 Audio Processor Signals.....................................................................2-92.3.4.1 Audio Processor Outputs........................................................2-92.3.4.2 Audio Processor Modulation Output......................................2-102.3.4.3 Audio Processor Low Frequency / Direct Mod. Output.........2-102.3.4.4 Audio Processor Inputs ..........................................................2-102.3.4.5 Audio Processor Microphone Input........................................2-112.3.4.6 Audio Processor Balanced Input.............................................2-112.3.4.7 Audio Processor Auxiliary Input............................................2-112.3.4.8 Audio Processor Subtone Inputs ............................................2-112.3.4.9 Audio Processor Direct Modulation Input..............................2-122.4 MT-3 Audio Processor (Version 1.8).............................................................2-12
ivTransmitter Main Board Instruction Manual2.4.1 General...............................................................................................2-122.4.2 Power Requirements...........................................................................2-122.4.3 Audio Processor Turn-on Time..........................................................2-132.4.4 Audio Processor Signals.....................................................................2-132.4.4.1 Audio Processor Outputs........................................................2-132.4.4.2 Audio Processor Modulation Output......................................2-142.4.4.3 Audio Processor Low Frequency / Direct Mod. Output.........2-142.4.4.4 Audio Processor Inputs ..........................................................2-142.4.4.5 Audio Processor Microphone Input........................................2-152.4.4.6 Audio Processor Balanced Input.............................................2-152.4.4.7 Audio Processor Auxiliary Input............................................2-152.4.4.8 Audio Processor Subtone Inputs ............................................2-152.4.4.9 Audio Processor Direct Modulation Input..............................2-162.5 Low Frequency Modulation............................................................................2-163TRANSMITTER ALIGNMENT.................................................................................3-13.1 General...........................................................................................................3-13.2 Repair Note.....................................................................................................3-13.3 Printed Circuitboard Numbering Convention..................................................3-13.4Recommended Test Equipment List................................................................3-13.5 Standard Factory Settings and Jumper Configuration.....................................3-23.5.1 MT-3 Transmitter Board Factory Configuration.................................3-23.5.2 MT-3 Audio Processor Factory Configuration...................................3-33.6 MT-3 Transmitter Board Alignment...............................................................3-43.6.1 General...............................................................................................3-43.6.2 MT-3 Transmitter Board Test Points..................................................3-53.7 Module Installation and Removal....................................................................3-53.8 MT-3 Audio Processor Alignment..................................................................3-63.8.1 General...............................................................................................3-63.8.2 MT-3 Audio Processor Standard Deviation Adjustment.....................3-63.9 Standard Factory Settings and Jumper Configuration.....................................3-83.9.1 MT-3 Audio Processor Factory Configuration (Version 1.8).............3-83.10 MT-3 Audio Processor Alignment (Version 1.8)............................................3-103.10.1 General...............................................................................................3-103.10.2 MT-3 Audio Processor Standard Deviation Adjustment.....................3-103.11 Low Frequency Modulation Configuration.....................................................3-113.11.1 MT-3 Transmitters..............................................................................3-113.11.2 MT-3 Transmitter Audio Processors ..................................................3-123.11.3 Synthesizer and Crystal Controlled Oscillator....................................3-133.11.4 Tuning the Transmitter........................................................................3-144TRANSMITTER INTERCONNECT PIN DEFINITIONS........................................4-15 ILLUSTRATIONS AND SCHEMATIC DIAGRAMS..............................................5-15.1Transmitter Block Diagram.............................................................................5-15.2 Transmitter Main Board Electrical Assembly..................................................5-3
Transmitter Main Board Instruction Manualv5.2.1Transmitter Main Board Top Side Component Layout.......................5-35.2.2Transmitter Main Board Bottom Side Component Layout..................5-45.2.3Transmitter Main Board Schematic Diagram......................................5-55.3 Front Panel Board...........................................................................................5-65.3.1 Front Panel Board Component Layout...............................................5-65.3.2 Front Panel Board Schematic..............................................................5-75.4 Audio Processor Electrical Assembly (Version 1.6) .......................................5-85.4.1 Audio Processor Component Layout..................................................5-85.4.2 Audio Processor Schematic Diagram..................................................5-95.5 Audio Processor Electrical Assembly (Version 1.8) .......................................5-105.5.1 Audio Processor Component Layout..................................................5-105.5.2 Audio Processor Schematic Diagram..................................................5-115.5.3 TX Time-Out-Timer Electrical Assembly............................................5-125.5.3.1 TX Time-Out-Timer Component Layout................................5-125.5.3.2 TX Time-Out-Timer Schematic Diagram................................5-126 PARTS LISTS .............................................................................................................6-16.1Transmitter Main Board Parts List..................................................................6-16.1.1Transmitter Main Board Electrical Parts List......................................6-16.1.2Transmitter Main Board Mechanical Parts List...................................6-36.1.3 MT-3 Front Panel Board Electrical Parts List.....................................6-46.2 MT-3 Audio Processor Parts List (Version 1.7).............................................6-46.2.1 MT-3 Audio Processor Electrical Parts List (Version 1.6)..................6-46.3 MT-3 Audio Processor Parts List (Version 1.8).............................................6-66.3.1 MT-3 Audio Processor Electrical Parts List (Version 1.8)..................6-67 REVISION HISTORY.................................................................................................7-1
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Transmitter Main Board Instruction Manual1-11GENERALinvisible text1.1 IntroductionThe MT-3 Transmitter Main Board integrates the MT-3 Front Panel Board, MT-3 AudioProcessor, Synthesizer or Crystal Controlled Oscillator module, and Amplifier module together tocomprise a MT-3 series transmitter (see section 5.1: MT-3 Transmitter Block Diagram). The FrontPanel Board and the Audio Processor are soldered directly to the Transmitter Main Board while theAmplifier and the Synthesizer or Crystal Controlled Oscillator module are frequency band sensitive,plug-in modules. Circuitry and jumpers on the Transmitter Main Board control the operation of themodules as well as the overall operation of the MT-3 transmitter. Power and signal connections aremade through the 48 pin type 'F' connector on the rear of the Transmitter Main Board where theyare then routed to the other MT-3 modules. The front and rear panels are attached to theTransmitter Main Board and together with the extruded aluminum shell, form the transmitterenclosure.1.2Performance Specificationsinvisible text1.2.1GeneralType:MT-3 Series TransmitterCompatibility:MT-3 Series Amplifier, OC-3 Crystal Controlled Oscillatormodule, OS-3 and OS-3H Frequency Synthesizer modules.Modulation:11K0F3E or 16K0F3E (Frequency Modulation).Operating Temperature Range:-30˚C to +60˚C, optional -40˚C to +60˚C temperature test.Operating Humidity:95% RH (non-condensing) at +25°C.Operating Voltage:+9.5 Vdc Regulated. +13.8 Vdc Nominal (11 - 16 Vdc).Front Panel Controls:NORM (repeat mode), OFF, and KEY TX (Tx on).PTT Activation:• Active to ground with or without time-out-timer;• Microphone activated with or without time-out-timer;• Front Panel switch:KEY TX - without time-out-timer;• NORM - with or without time-out-timer.• Isolated (optional relay) with or without time-out-timer.PTT Time-Out-Timer:Selectable from 1 sec. to 8 hrs. (Factory Default: 5 min.).
1-2Transmitter Main Board Instruction Manual1.2.2Audio SpecificationsAudio Input:Balanced 600 ohm or unbalanced (optional).Input level sensitivity, -25 dBm to 0 dBm.Audio Response:Pre-emphasis (6 dB per octave); +0.5 to -2.0 dBfrom 300 Hz to 3 kHz;Flat Audio Response:+1 to -1 dB from 100 Hz to 3 kHz.Audio Deviation:Preset to ±1.5 kHz (Narrow Band) or ±3.0 kHz (Wide Band)with a 1 kHz tone (capable ±2.5 kHz or ±5.0 kHz).Subtone Audio Input 1:0.5 Vpp at 200 Hz for ±500 Hz deviation(internally adjustable).Subtone Audio Input 1 Frequency range:60 Hz to 300 Hz.Subtone Audio Input 2:0.5 Vpp at 100 Hz for ±500 Hz deviation(internally adjustable).Subtone Audio Input 2 Frequency range:DC to 150 Hz.Direct Modulation Input:0.5 Vrms at 1 kHz or ±3 kHz deviation.Direct Modulation Frequency range:DC to 5 kHz.
Transmitter Main Board Instruction Manual2-12THEORY OF OPERATIONinvisible text2.1 Transmitter Main Boardinvisible text2.1.1GeneralSwitch SW1 on the Front Panel Board is a DPDT switch which controls the operation of thetransmitter (refer to the operations section of the Transmitter Manual). When SW1 is in the 'OFF'position the transmitter is turned off; however, +13.8 Vdc is still present on the Transmitter MainBoard as the +13.8 Vdc supply is not switched. When SW1 is in the 'KEYED' position, +9.5 Vdcis supplied to the transmitter circuitry and the transmitter is continuously keyed on. When SW1 isin the 'NORM' position, +9.5 Vdc is supplied to the transmitter circuitry and the transmitter can bekeyed from any of the several Push-To-Talk inputs.Refer to section 5.2.3 Transmitter Main Board Schematic Diagram.2.1.2Transmitter Push-To-TalkAll three of the Push-To-Talk (PTT) inputs that key the transmitter are active low (< +2 Vdc). OnePTT input is on the front panel microphone connector. The other two PTT inputs: PTT WTO(PTT With Time-Out-Timer) and PTT NTO (PTT No Time-Out-Timer), are on the backplaneconnector of the transmitter board. If required, the microphone's PTT input can be configured toactivate the transmitter's Time-Out-Timer (TOT). An isolated PTT input can be made available byinstalling an optional relay (RELAY1) and configuring jumpers J1 to J4 so that the relay controlsthe PTT circuitry.2.1.2.1 Microphone PTTJumper J1 on the MT-3 Front Panel Board configures the microphone's PTT input (MIC PTT) toeither bypass or activate the transmitter's TOT. Installing surface mount jumper J1 in the 'x'position (default) selects the MIC PTT NTO line which bypasses the TOT. Installing surfacemount jumper J1 to the 'y' position selects the MIC PTT WTO line which activates the transmitter'sTOT. When SW1 is in the 'KEYED' position the MIC PTT NTO line is automatically grounded.Refer to Section 5.3.1, "MT-3 Front Panel Board Component Layout" for the location of jumperJ1.
2-2Transmitter Main Board Instruction Manual2.1.2.2PTT With Time-Out-TimerPins B10 and Z10 of the backplane connector are the PTT WTO input. When the PTT WTOsignal, which is normally high, falls below +2.0 Vdc, the transmitter is keyed. The transmitter isdisabled when the PTT WTO input rises above +2.3 Vdc or if the TOT's time-out period isexceeded. If the time-out period is exceeded the PTT WTO input must go high (>+2.3 Vdc) andthen low again in order to rekey the transmitter.The PTT WTO threshold of approximately +2 Vdc (0.3 Vdc hysteresis) is set by U1a, R1, R2, R3,R4, R9, and R10 while diodes D1 and D2 provide overvoltage protection for U1a. The PTT WTOsignal output from U1a is 'AND'ed with the MIC PTT WTO by U2a. When either the PTT WTOor the MIC PTT WTO is activated the output of U2a goes low which triggers the transmitter's TOTlocated on the MT-3 Audio Processor. The TOT's output is 'AND'ed with the MIC PTT NTOsignal (U2c) and the PTT NTO signal (U2d). When any one of the preceding three signals (TOT'soutput, MIC PTT NTO, PTT NTO) go low the transmitter is activated by transistors Q1 to Q7which switch power to the various modules.2.1.2.3 PTT No Time-Out-TimerPins B14 and Z14 of the backplane connector are the PTT NTO input. When the PTT NTO signal,which is normally high, falls below +2.0 Vdc, the transmitter is keyed. As long as the PTT NTOsignal remains below +2.0 Vdc the transmitter will remain keyed. The transmitter is disabled whenthe PTT NTO signal rises above +2.3 Vdc.The PTT NTO threshold of approximately +2 Vdc (0.3 Vdc hysteresis) is set by U1b, R5, R6, R7,R8, R9, and R10 while diodes D3 and D4 provide overvoltage protection for U1b. The PTT NTOsignal is 'AND'ed with the output of U2c (MIC PTT NTO signal 'AND'ed with the TOT output) byU2d. When the output of U2d goes low the transmitter is activated by transistors Q1 to Q7 whichswitch power to the various modules.2.1.2.4 Optional RelayThe transmitter's PTT circuitry can be completely isolated by installing RELAY1. Jumpers J1 to J5configure the relay to provide an isolated PTT input for either the PTT WTO line or PTT NTO line.The isolated PTT input is enabled by energizing the relay. The transmitter board will accept any ofthe Aromat TF2E line relays. These relays are DPDT, single side stable, and have coil voltagesranging from +3 Vdc to +48 Vdc. Only one set of relay contacts are used to activate the PTTcircuitry.To configure the isolated input for PTT WTO operation jumpers J2, J3, and J4 must be in the 'y'position. In this mode, pins B10 and Z10 no longer function as the PTT WTO input; however, pinsB14 and Z14 continue to function as the normal PTT NTO input.
Transmitter Main Board Instruction Manual2-3To configure the isolated input for PTT NTO operation jumpers J2, J3, and J4, must be in the 'x'position. In this mode, pins B14 and Z14 no longer function as the PTT NTO input; however, pinsB10 and Z10 continue to function as the normal PTT WTO input.2.1.2.5 PTT OutputPin B24 on the backplane connector is an open drain output (Q9) which is pulled low anytime thetransmitter is keyed and the synthesizer is locked. A crystal controlled transmitter does not have alocked condition so pin B24 is pulled low anytime the transmitter is keyed. Q9, an N-channelMOSFET capable of sinking currents up to 2 Amps, is activated by Q8 which is activated by theQualified PTT signal (JS2-6) of the Synthesizer or Crystal Controlled Oscillator module. TheQualified PTT signal also controls the LED ENA line for diode D1 on the front panel board andenable line for the MT-3 Amplifier Module (JP1-1).2.1.2.6PTT Voltage SwitchingThe PTT voltage switching circuitry is comprised of transistors Q1 through Q7 and the associatedresistors. The base of Q1 is driven by the output of U2d which is the combined PTT signal fromall of the PTT inputs. When the transmitter is keyed, Q1 is turned off and subsequently transistorsQ3, Q4, and Q6 are turned on. Transistors Q3, Q4, and Q6 provide three different functions:• Q3 provides the active low signal for the Synthesizer or Crystal Controlled Oscillatormodule PTT input;• Q4 turns on Q5 which turns on the +9.5 Vdc Switched supply;• Q6 turns on Q7 which turns on the +9.5 Vdc PTT Switched supply.The '+9.5 Vdc Switched' supply (Q5) can also be activated by installing jumper J6 or by externallygrounding the TX Standby Line (pins B12 and Z12). The '+9.5 Vdc PTT Switched' supply and the'+9.5 Vdc Switched' supply both provide +9.5 Vdc but depending on how jumpers J6, J7 and J18are configured the transmitter's standby mode will change.2.1.2.7Transmitter Standby ModesThe MT-3 series transmitters have four different standby modes that trade-off standby currentconsumption for start-up speed. The standby modes are determined by three jumpers: jumper J6which always turns on the '+9.5 Vdc Switched' supply, jumper J7 which selects the power sourcefor the MT-3 Audio Processor and jumper J18 which selects the enable line for the OS-3 or OS-3H Synthesizer, or OC-3 Crystal Controlled Oscillator module.The actual current and start-up time may depend on the oscillator source (crystal or synthesizer)and amplifier module. The current and start-up times given below are representative values
2-4Transmitter Main Board Instruction Manualintended only as a guideline. Refer to the instruction manual for the transmitter that came withyour system for specifications.• MODE 1:Jumper J6 out- the audio processor is switched by a PTT signal- the synthesizer or crystal controlled oscillator is switched by a PTT signal- standby current:Synthesized - typically 7 mACrystal Controlled - typically 6 mA- start-up time:Synthesized - typically 50 msCrystal Controlled - typically 25 ms• MODE 2:Jumper J6 in, jumper J7 in the 'y' position, jumper J18 in the 'x' position- the audio processor is switched by a PTT signal- the synthesizer or crystal controlled oscillator is enabled all of the time- standby current:Synthesized - typically 65 mACrystal Controlled - typically 25 mA- start-up time:Synthesized - typically 25 msCrystal Controlled - typically 25 ms• MODE 3:Jumper J6 in, jumper J7 in the 'x' position, jumper J18 in the 'y' position- the audio processor is enabled all of the time- the synthesizer or crystal controlled oscillator is switched by a PTT signal- standby current:Synthesized - not used in this modeCrystal Controlled - typically 28 mA- start-up time:Synthesized - not used in this modeCrystal Controlled - typically 10 ms• MODE 4:Jumper J6 in, jumper J7 in the 'x' position, jumper J18 in the 'x' position- the audio processor is enabled all of the time- the synthesizer or crystal controlled oscillator is enabled all of the time- standby current:Synthesized - typically 90 mACrystal Controlled - typically 46 mA- start-up time:Synthesized - typically 10 msCrystal Controlled - typically 10 ms2.1.3Audio CircuitsAll of the audio signal conditioning (e.g. limiting, filtering, and pre-emphasis) is performed by theMT-3 Audio Processor. The transmitter board routes the audio lines from the backplane connectorto the audio processor and then to the synthesizer. The audio lines routed to the audio processorare: two subtone inputs (backplane pins B22 and Z24), a direct modulation input (pin Z28), asquelched/flat audio input (pin Z20), a 600 ohm balanced input (pins B18 and Z18), and an audiocontrol line (pin Z22). The audio processor's balanced input pins are isolated from pins B18 and
Transmitter Main Board Instruction Manual2-5Z18 by a transformer (T1). Two audio outputs from the MT-3 Audio Processor are routed to thesynthesizer or crystal control oscillator modules.2.1.3.1 Microphone AudioNormally the audio from a transmitter's microphone is transmitted by that transmitter; however, theTransmitter Main Board can be configured by the MIC IN and MIC OUT lines so that the audiofrom an external microphone modulates transmitter. The configuration of the MIC IN (pin Z4) andMIC OUT (pin B4) lines on the MT-3 Transmitter Board are controlled by jumpers J16 and J17respectively. Jumper J16 selects the audio source for the MT-3 Audio Processor's microphoneinput. Jumper J17 is used to enable or disable the MIC OUT line. Normally the transmitter'smicrophone is selected (J16 in the 'x' position) and the MIC OUT line is enabled (J17 is installed).2.1.3.2 Received AudioPin B20 is the audio input from the transmitter's corresponding receiver. The default setting forthis line is to have it AC coupled (Jumper J9 is out) and directly connected to the front panel boardRX AUDIO line (jumpers J10 and J11 in the 'x' position). Audio amplifier U5 can be enabled byinstalling jumper J8 which connects power to U5 (continuously in the 'x' position, PTT switched inthe 'y' position). Setting jumper J10 in the 'y' position and jumper J11 in the 'z' position enables theaudio path through the amplifier. Level control for the squelched, de-emphasized audio input line isprovided by R27. Audio amplifier U5 draws approximately 5 mA so it is not normally enabled.2.1.4Channel Selectioninvisible text2.1.4.1Synthesized TransmitterSeven backplane connections are used to communicate with the synthesizer unit. Pins D28, D30,and D32 are used (in house) to program the synthesizer. Channel select lines CSEL 0 (leastsignificant bit) through CSEL 3 (most significant bit), which are available at pins D20, D22, D24,and D26, are used once the synthesizer is programmed to select one of 16 channels. If the channelselect lines are all low (channel 0) the channel for the synthesizer is read from switches FSW1(most significant), FSW2, FSW3, and FSW4 (least significant); otherwise one of 15 pre-programmed frequencies is selected. Since the resulting frequency is dependent on the transmittermodel, refer to the section on frequency selection in the Transmitter Manual or to the channeldesignation tables for that particular transmitter.
2-6Transmitter Main Board Instruction Manual2.1.4.2Crystal Controlled TransmitterThe OC-3 Crystal Control Oscillator module is a direct replacement for the synthesizer module andtherefore uses the same connections as the synthesizer to connects to the MT-3 Transmitter MainBoard. The channel select lines and switches FSW1 to FSW4 are not used by the crystal controlmodule as the transmitter's operating frequency is determined by the Crystal Control Oscillatormodule's crystal frequency. A frequency multiplication factor, described in the manual for thismodule, relates the crystal frequency to the operating frequency .2.1.5Amplifier CircuitsThe MT-3 series Amplifier has 6 connections that are cabled to the transmitter board: +13.8 Vdc,+9.5 Vdc, Enable, Forward Power Sense, Reverse Power Sense, and Ground. The +13.8 Vdcsupply (JP1-3) is always on while the +9.5 Vdc supply (JP1-2) is always switched by a PTTsignal. The enable line (JP1-1) is active low and is controlled by the Qualified PTT signal fromthe synthesizer module or crystal controlled oscillator module.Jumpers J12, J13, J14, and J15 are used to configure the amplifier's forward and reverse powersense lines (JP1-4 and JP1-5). Normally jumpers J13, J14, and J15 are in the 'x' position whichdirectly connects the amplifier's forward and reverse power sense lines to the backplane connector(pins B26 and Z26 respectively). The forward and reverse power sense lines from the Amplifiercan be open collector or linear outputs depending on how they are configured in the amplifiermodule. In open collector configuration the lines are active low, that is, the output will go lowwhen a 'fail' condition is detected. If both lines from the amplifier module are configured as opencollector outputs, the power sense lines can be 'OR'ed together to make a general fail indicator(jumper J12 in, jumpers J13, J14, and J15 in the 'y' position). The Fail Indicator is also an opencollector output; however, the Fail Indicator is active high (the output goes high when a 'fail'condition is detected). When the transmitter is configured with the general fail indicator option,pin Z26 (VSWR reverse) is not used and pin B26 becomes the Fail Indicator output. 2.1.6Time-Out-Timer CircuitryThe MT-3 Transmitter also has an associated programmable push-to-talk (PTT) time-out-timer(TOT) circuitry on the Transmitter Main Board. The TOT circuitry is powered via J34 from thecontinuous +9.5 Vdc supply and is programmable for various time-out periods.The TOT input trigger (enabled by J33) is normally high and in this state the timer is disabled.When the input trigger level falls below +2.0 Vdc, the timer is activated, the TOT output trigger(enable by J35) is pulled low, and the transmitter is keyed. If the input trigger rises above +2.4 Vdcor if the time-out period is exceeded, the output trigger will go high, disabling the transmitter. If thetime-out period is exceeded, the TOT input trigger must go high and then low again in order torekey the transmitter.
Transmitter Main Board Instruction Manual2-7The time-out duration is jumper selectable from 1 second to 8 hours. The positions of the jumperson the top (Through hole component) side of the Transmitter Main Board. Table 2-1 shows thetime-out duration in minutes for the various jumper settings which are listed as enabled (E: jumpershorted - in) or disabled (D: jumper left open - out). The standard factory setting of 5 minutes isshown in bold type in table 2-2.Table 2-1Time-Out-Timer SettingsD = DISABLED (no solder jumper installed), E = ENABLED (solder jumper installed). Bold textrepresents default settings.TIME-OUT DURATION(MINUTES)J26 = EJ26 = DJ26 = EJ32J31J29J28J27 = DJ27 = EJ27 = EE E E E 0.01 0.01 0.01E E E D 0.02 0.03 0.01E E D E 0.04 0.06 0.02E E D D 0.08 0.12 0.05E D E E 0.15 0.23 0.10E D E D 0.31 0.47 0.19E D D E 0.62 0.94 0.38E D D D 1.25 1.88 0.75D E E E 2.5 3.75 1.5D E E D5.07.5 3.0D E D E 10 15 6.0D E D D 20 30 12D D E E 40 60 24D D E D 80 120 48D D D E 160 240 96D D D D 320 480 192
2-8Transmitter Main Board Instruction Manual2.2 MT-3 Front Panel BoardThe MT-3 Front Panel Board is a subsection of the MT-3 Transmitter Board which is used tomount the front panel switch, diode, and microphone connector. The main purpose of the board isto eliminate a wiring harness for the front panel components. Jumper J1, located on the rear of thecircuitboard, is used to select whether or not the MIC PTT line activates the transmitter's TOT.Jumper J2 is used to select whether or not Rx Audio or 13.8 Volt is supplied to pin 4 of themicrophone.• Jumper J1: 'x' position MIC PTT NTO no time-out-timer (factory setting)'y' position MIC PTT WTO with time-out-timer• Jumper J2: 'x' position Rx Audio enabled to MIC-4 pin (factory setting)'y' position+13.8 Volts supplied to MIC-4 pinRefer to section 5.3.2 "MT-3 Front Panel Board Schematic Diagram".2.3 MT-3 Audio Processor (Version 1.6)invisible text2.3.1GeneralThe MT-3 Audio Processor is a versatile circuitboard that can provide several types of audioprocessing for voice or data transmission. Two analog switches on the audio processor, controlledby a common signal, make it possible to transmit voice or data. A continuous +9.5 Vdc supplyand a switched +8.0 Vdc supply are required to power the module. The MT-3 Audio Processor isbackwards compatible to Daniels Electronics MT-2 series transmitters. Refer to section 5.4.1"MT-3 Audio Processor Component Layout" and to section 5.4.2 "MT-3 Audio ProcessorSchematic Diagram" for component location and designation references.2.3.2Power RequirementsThe audio processor can be configured for continuous audio standby or for switched audio standbyby the Transmitter Main Board. If fast audio risetime is desired, the transmitter should be operatedin standby mode 2 or 3 as specified in section 2.1.2.7. Power for the microphone input and thebalanced input can be separately disabled by jumpers J3 and J4 respectively if the input is notrequired. This results in a current savings of approximately 11 mA per input. The currentrequirements for the MT-3 Audio Processor are shown in Table 2-1. The current for the associatedTOT is approximately 4 mA when the transmitter is keyed and is included in the keyed values in thetable below.
Transmitter Main Board Instruction Manual2-9Table 2-1 MT-3 Audio Processor Current Consumption.Function Current Drawkeyed / unkeyedSwitched Audio Standby Both Microphone and Balanced Input enabled29.0 / 0.5 mA Only Microphone or Balanced Input enabled17.5 / 0.5 mA Only Auxiliary Input enabled6.0 / 0.5 mAContinuous Audio Standby Both Microphone and Balanced Input enabled29.0 / 25.5 mA Only Microphone or Balanced Input enabled17.5 / 14.0 mA Only Auxiliary Input enabled6.0 / 2.5 mA2.3.3Audio Processor Turn-on TimeThe turn-on time of the audio processor is 25 ms. This measurement is made with the standardfactory settings with a 1 kHz tone applied to the balanced input. The turn-on time is the time ittakes the audio processor to output a stable audio signal from the time its power (+9.5 Vdc) isswitched on. The turn-on time can be virtually eliminated by configuring the audio processor forcontinuous audio standby (see section 2.1.2.7 Transmitter Standby Modes).2.3.4Audio Processor SignalsThe MT-3 Audio Processor has six audio inputs, two audio outputs and one audio control input.Five of the audio inputs are used primarily for voice signals. The sixth, the Direct modulation input,is used primarily for data signals. The audio control input is used to switch audio outputs so thetransmitter can transmit voice or data.2.3.4.1 Audio Processor OutputsBoth the audio outputs, Modulation Output (P3-1) and Low Frequency / Direct Modulation Output(P4-2), are gated by audio switches U9 and U10 respectively which are controlled by the Tx AudioControl Input (P4-4). The audio switches operate complimentary to each other so there can everonly be one source modulating the transmitter. In standard configuration, the Modulation Outputport is used so switch U9 is always on.
2-10Transmitter Main Board Instruction Manual2.3.4.2Audio Processor Modulation OutputThe Modulation Output port is the output port used by all voice input signals. The voice inputs arecombined by summing amplifier U4a which has an associated symmetry control (R14). Op-ampU4a together with U5a provide the limiting action for the audio processor. After the audio signalshave been combined and limited, they are filtered by a 6 pole lowpass Butterworth filter (U5b, U5c,and U5d). Jumpers JU24, JU25 and JU26 configure the lowpass filter for narrowband orwideband operation: jumpers JU24(x and y) to JU26(x and y) are installed for wideband (25 kHz)channels and are not installed for narrowband (12.5 kHz) channels. The output signal from thefilter is then level adjusted by the deviation control pot, R29, before modulating the transmitter. In special applications, jumper JU6 can be disabled and JU7 enabled, this allows the transmitter tobe modulated directly from the auxiliary input. This should not be done without external filteringsince jumper JU7 bypasses the limiting and filter circuits. 2.3.4.3 Audio Processor Low Frequency / Direct Mod. OutputThe Low Frequency / Direct Modulation Output port has two functions depending on whether thetransmitter is synthesized or crystal controlled. In a synthesized transmitter, this port is used tomodulate the synthesizer reference frequency. The frequency response of this port is typically DCto 60 Hz. In a crystal controlled transmitter, this port can be used by the Direct Modulation Inputto directly modulate the crystal control oscillator module. The frequency response of this port isessentially flat from DC to 5 kHz with no limiting or filtering. Amplification, if desired, is providedby Op-amp U8a which is powered independent of the audio card voice circuits by jumper JU1.2.3.4.4 Audio Processor InputsAs previously mentioned, the MT-3 Audio Processor has six audio inputs, five used primarily forvoice signals and one for data signals.The 6 audio inputs on the audio processor are:• dynamic microphone input• 600 ohm balanced input• 2 subtone inputs• auxiliary input.• direct modulation input.
Transmitter Main Board Instruction Manual2-112.3.4.5 Audio Processor Microphone InputThe microphone input has an automatically gain controlled (AGC) preamplifier whose input level iscontrolled by R2. The microphone input level control (R2) can accommodate a -25 dBm to 0 dBminput signal. The compression level for the microphone input is adjusted by R8. The microphoneinput is limited and filtered and is output at the standard modulation output port.2.3.4.6 Audio Processor Balanced InputThe 600 ohm balanced input also has an AGC preamplifier, input level control (R31), andcompression level control (R38). The balanced input level control can accommodate a -25 dBm to0 dBm input. The balanced input can have a standard 6 dB/octave pre-emphasis response byenabling jumper JU9 or a flat-audio response by enabling jumper JU10. Like the microphoneinput, the balance input is limited and filtered and is output at the standard modulation output port.2.3.4.7 Audio Processor Auxiliary InputThe auxiliary input is a special input and does not have an AGC preamplifier or an input levelcontrol. This input can be configured for a pre-emphasis response (enable JU14) or a flat-audioresponse (enable JU15). The compression level for this input is set by R48. The auxiliary outputis normally summed with the voice signals by op-amp U4a, limited, then filtered and output at thestandard modulation output port. When jumper JU6 is disabled and jumper JU7 is enabled, theauxiliary input can be used to directly modulate the transmitter. Care should be taken when directlymodulating the transmitter with the auxiliary input because the MT-3 transmitters use direct FMmodulation and there is no filtering or limiting action provided by the auxiliary input. The inputlevel to the auxiliary input should be -18 dBm and can be driven by one of three inputs:• the balanced input – JU11 enabled• the tone/digital input – JU12 enabled• the direct modulation input – JU13 enabledWhen the 600 ohm balanced input is connected to the auxiliary input, the balanced input levelcontrol can be used to adjust the level for the auxiliary input. When either the tone/digital input orthe direct modulation input are used, the input level is not adjustable.2.3.4.8 Audio Processor Subtone InputsThere are two subtone inputs available on the audio processor. Both subtone inputs can beindividually configured to be output from the standard Modulation Output port or to be output fromthe Low Frequency / Direct Modulation Output. In standard configuration, Subtone 1 is summed
2-12Transmitter Main Board Instruction Manualwith the voice signals to be output from the standard Modulation Output port while Subtone 2 isnot used. Both subtone inputs have an input level control.2.3.4.9Audio Processor Direct Modulation InputThe Direct Modulation Input is an extremely versatile input. This port is designed to be used fordata signals. Depending on the application, the signal can be amplified, AC or DC coupled andoutput to the Modulation Output or the Low Frequency / Direct Modulation Output port. Pleaseconsult the factory for specific jumper settings for your application.2.4 MT-3 Audio Processor (Version 1.8)invisible text2.4.1GeneralThe MT-3 Audio Processor is a versatile circuitboard that can provide several types of audioprocessing for voice or data transmission. Two analog switches on the audio processor, controlledby a common signal, make it possible to transmit voice or data. A continuous +9.5 Vdc supplyand a switched +8.0 Vdc supply are required to power the module. The MT-3 Audio Processor isbackwards compatible to Daniels Electronics MT-2 series transmitters. Refer to section 5.5.1"MT-3 Audio Processor Component Layout" and to section 5.5.2 "MT-3 Audio ProcessorSchematic Diagram" for component location and designation references.2.4.2Power RequirementsThe audio processor can be configured for continuous audio standby or for switched audio standbyby the Transmitter Main Board. If fast audio risetime is desired, the transmitter should be operatedin standby mode 2 or 3 as specified in section 2.1.2.7 with JU36 on the audio processor in the 'y'position. Power for the microphone input and the balanced input can be disabled by jumpers JU36and JU40 respectively if the input is not required. This results in a current savings ofapproximately 3.5 mA per input. The current requirements for the MT-3 Audio Processor areshown in Table 3-1. The current for the associated TOT is approximately 4 mA when thetransmitter is keyed. The keyed values in the table below do not include the current for the TOT.
Transmitter Main Board Instruction Manual2-13Table 3-1 MT-3 Audio Processor Current Consumption.Function Current Drawkeyed / unkeyedSwitched Audio Standby Both Microphone and Balanced Input enabled6.0 / 0.3 mA Only Microphone or Balanced Input enabled 4.5 / 0.3 mA Only Auxiliary Input enabled3.0 / 0.3 mAContinuous Audio Standby Both Microphone and Balanced Input enabled6.0 / 3.5 mA Only Microphone or Balanced Input enabled4.5 / 1.5 mA Only Auxiliary Input enabled3.0 / 0.5 mA2.4.3Audio Processor Turn-on TimeThe turn-on time of the audio processor is 25 ms. This measurement is made with the standardfactory settings with a 1 kHz tone applied to the balanced input. The turn-on time is the time ittakes the audio processor to output a stable audio signal from the time its power (+9.5 Vdc) isswitched on. The turn-on time can be virtually eliminated by configuring the audio processor forcontinuous audio standby (see section 2.1.2.7 Transmitter Standby Modes).2.4.4 Audio Processor SignalsThe MT-3 Audio Processor has six audio inputs, two audio outputs and one audio control input.Five of the audio inputs are used primarily for voice signals. The sixth, the Direct modulation input,is used primarily for data signals. The audio control input is used to switch audio outputs so thetransmitter can transmit voice or data.2.4.4.1 Audio Processor OutputsBoth the audio outputs, Modulation Output (P3-1) and Low Frequency / Direct Modulation Output(P4-2), are gated by audio switches U9 and U10 respectively which are controlled by the Tx AudioControl Input (P4-4). The audio switches operate complimentary to each other so there can everonly be one source modulating the transmitter. In standard configuration, the Modulation Outputport is used so switch U9 is always on.
2-14Transmitter Main Board Instruction Manual2.4.4.2Audio Processor Modulation OutputThe Modulation Output port is the output port used by all voice input signals. The voice inputs arecombined by U1, a gain level programmable compandor which is configured as an automatic levelcontrol amplifier. Op-amp U4a together with U5a provide the limiting action for the audioprocessor. After the audio signals have been combined and limited, they are filtered by a 6 polelowpass Butterworth filter (U5b, U5c, and U5d). Jumpers JU24, JU25 and JU26 configure thelowpass filter for narrowband or wideband operation: jumpers JU24(x and y) to JU26(x and y) areinstalled for wideband (25 kHz) channels and are not installed for narrowband (12.5 kHz)channels. The output signal from the filter is then level adjusted by the deviation control pot, R29,before modulating the transmitter. In special applications, jumper JU6 can be disabled and JU7 enabled, this allows the transmitter tobe modulated directly from the auxiliary input. This should not be done without external filteringsince jumper JU7 bypasses the limiting and filter circuits. 2.4.4.3Audio Processor Low Frequency / Direct Mod. OutputThe Low Frequency / Direct Modulation Output port has two functions depending on whether thetransmitter is synthesized or crystal controlled. In a synthesized transmitter, this port is used tomodulate the synthesizer reference frequency. The frequency response of this port is typically DCto 300 Hz. In a crystal controlled transmitter, this port can be used by the Direct Modulation Inputto directly modulate the crystal control cscillator module. The frequency response of this port isessentially flat from DC to 5 kHz with no limiting or filtering. Amplification, if desired, is providedby Op-amp U3b.2.4.4.4 Audio Processor InputsAs previously mentioned, the MT-3 Audio Processor has six audio inputs, five used primarily forvoice signals and one for data signals.The 6 audio inputs on the audio processor are:• dynamic microphone input• 600 ohm balanced input• 2 subtone inputs• auxiliary input.• direct modulation input.
Transmitter Main Board Instruction Manual2-152.4.4.5 Audio Processor Microphone InputThe microphone input has an automatically level controlled (ALC) preamplifier U1 whose inputlevel is controlled by R2. The microphone input level control (R2) can accommodate a -25 dBm to0 dBm input signal. The microphone input is limited and filtered and is output at the standardmodulation output port. The microphone input can have a standard 6dB/octave pre-emphasisresponse or a flat-audio response, jumper JU3 at 'x' and 'y' position respectively.2.4.4.6 Audio Processor Balanced InputThe 600 ohm balanced input also uses the ALC preamplifier U1, with input level control pot (R31).The balanced input level control can accommodate a -25 dBm to 0 dBm input. Like the microphoneinput, the balance input is limited and filtered and is output at the standard modulation output port.2.4.4.7 Audio Processor Auxiliary InputThe auxiliary input is a special input and does not have an ALC preamplifier or an input levelcontrol. This input can be configured for a pre-emphasis response (enable JU14) or a flat-audioresponse (enable JU15). The compression level for this input is set by R48. The auxiliary outputis normally summed with the voice signals by op-amp U4a, limited, then filtered and output at thestandard modulation output port. When jumper JU6 is disabled and jumper JU7 is enabled, theauxiliary input can be used to directly modulate the transmitter. Care should be taken when directlymodulating the transmitter with the auxiliary input because the MT-3 transmitters use direct FMmodulation and there is no filtering or limiting action provided by the auxiliary input. The inputlevel to the auxiliary input should be -18 dBm and can be driven by one of three inputs:• the balanced input – JU11 'x' position• the tone/digital input – JU12 enabled• the direct modulation input – JU13 enabledWhen the 600 ohm balanced input is connected to the auxiliary input, the balanced input levelcontrol can be used to adjust the level for the auxiliary input. When either the tone/digital input orthe direct modulation input are used, the input level is not adjustable.2.4.4.8Audio Processor Subtone InputsThere are two subtone inputs available on the audio processor. Both subtone inputs can beindividually configured to be output from the standard Modulation Output port or to be output fromthe Low Frequency / Direct Modulation Output. In standard configuration, Subtone 1 is summedwith the voice signals to be output from the standard Modulation Output port while Subtone 2 isnot used. Both subtone inputs have an input level control.
2-16Transmitter Main Board Instruction Manual2.4.4.9 Audio Processor Direct Modulation InputThe Direct Modulation Input is an extremely versatile input. This port is designed to be used fordata signals. Depending on the application, the signal can be amplified, AC or DC coupled andoutput to the Modulation Output or the Low Frequency / Direct Modulation Output port. Pleaseconsult the factory for specific jumper settings for your application.2.5 Low Frequency ModulationThe transmitter has an additional option to address low frequency user modulation requirements. Aphase modulated bandwidth from 0 (dc) to 100 Hz (PLL loop filter bandwidth) allows specializedapplications such as paging or trunking where a separate low frequency digital/analog modulationchannel is required. Low Frequency Modulation allows external access to the low frequencymodulation capabilities of the synthesizer module. The DIRECT MODULATION inputs on the J1control connector of the M-3 motherboard will be used (B20 for TX A, and A20 forTX B). See section 3.11, 'Low Frequency Modulation Configuration' for set up and alignment.
Transmitter Main Board Instruction Manual3-13TRANSMITTER ALIGNMENT3.1GeneralTransmitter alignment is simplified by using an M-3 Subrack, SM-3 System Monitor, and RFextender cable to provide transmitter power and signal interconnection. Alternatively, +9.5 Vdc and+13.8 Vdc may be applied directly to a transmitter module through positive connection for the+9.5 Vdc to pins B6 and Z6, for the +13.8 Vdc to pins B2 and Z2, and negative connection to pinsB30, Z30, B32, and Z32. Transmitter balanced audio (600 Ω) is available at pins B18 and Z18.3.2 Repair NoteMT-3 Transmitter modules are mainly made up of surface mount devices which should not beremoved or replaced using an ordinary soldering iron. Removal and replacement of surface mountcomponents should be performed only with specifically designed surface mount rework and repairstations complete with ElectroStatic Dissipative (ESD) protection.When removing Surface Mount Solder Jumpers, it is recommended to use solder braid in place ofmanual vacuum type desoldering tools when removing jumpers. This will help prevent damage tothe circuitboards.3.3Printed Circuitboard Numbering ConventionTo ease troubleshooting and maintenance procedures, Daniels Electronics Limited has adopted aprinted circuitboard (PCB) numbering convention in which the last two digits of the circuitboardnumber represent the circuitboard version. For example:• PCB number 43-912010 indicates circuitboard version 1.0;• PCB number 50002-02 indicates circuitboard version 2.0.All PCB's manufactured by Daniels Electronics are identified by one of the above conventions.3.4 Recommended Test Equipment ListAlignment of the complete transmitter requires the following test equipment or its equivalent. It isassumed that any adjustment of the Transmitter Main Board will also involve the other modules.Dual Power Supply:Regulated +9.5 Vdc at 2 A.Regulated +13.8 Vdc at 2 A - Topward TPS-4000Oscilloscope / Multimeter:Fluke 97 ScopemeterCurrent Meter: Fluke 75 multimeter
3-2Transmitter Main Board Instruction ManualRadio communications test set : Marconi Instruments 2955RVSWR 3:1 mismatch load:JFW 50T-035-3.0:1Alignment Tool:Johanson 4192It is recommended that the radio communications test set be frequency locked to an externalreference (WWVH, GPS, Loran C) so that the high stability oscillator may be accurately set towithin its ±1 ppm frequency tolerance.3.5Standard Factory Settings and Jumper ConfigurationStandard factory settings and the associated jumper configuration for each module of the MT-3series transmitter are given below.3.5.1MT-3 Transmitter Board Factory ConfigurationThe MT-3 Transmitter Main Board is factory configured as follows:• Transmitter standby mode 1 (lowest standby current consumption).• Receiver squelched, de-emphasized audio amplifier disabled.• Optional relay not installed.• Separate amplifier power sense outputs.The corresponding jumper settings are:• Jumper J2: 'x' position Optional relay configuration• Jumper J3: no connectionOptional relay configuration• Jumper J4: 'y' position Optional relay configuration• Jumper J6: not installedTransmitter standby mode select - Mode 1• Jumper J7: 'y' positionAudio processor standby mode select• Jumper J9: not installedReceiver audio ac/dc input coupling• Jumper J12: not installedAmplifier power sense output configuration• Jumper J13: 'x' positionAmplifier power sense output configuration• Jumper J14: 'x' positionAmplifier power sense output configuration• Jumper J15: 'x' positionAmplifier power sense output configuration• Jumper J16: 'x' position Microphone configuration• Jumper J17:installedMicrophone output line• Jumper J18: 'y' position Synthesizer or crystal module standby mode select• Jumper J19: 'x' position 600Ω audio transformer enable. 'y' position disables• Jumper J20: 'x' position 600Ω audio transformer enable. 'y' position disables• Jumper J21: not installed+8 Vdc audio processor supply bypass• Jumper J22: 'x' position 600Ω audio transformer enable. 'y' position disables• Jumper J23: 'x' position 600Ω audio transformer enable. 'y' position disables• Jumper J24:installedSubtone #2 output enable• Jumper J25: 'x' position Audio output enable
Transmitter Main Board Instruction Manual3-3• Jumper J26:installedTime-Out-Timer Timing resistor select.• Jumper J27: not installedTime-Out-Timer Timing resistor select.• Jumper J28: not installedTime-Out-Timer Timing period output select.• Jumper J29:installedTime-Out-Timer Timing period output select.• Jumper J31:installedTime-Out-Timer Timing period output select.• Jumper J32: not installedTime-Out-Timer Timing period output select.• Jumper J33:installedTime-Out-Timer input enable• Jumper J34: installedTime-Out-Timer power enable• Jumper J35:installedTime-Out-Timer output enableNote: Jumpers J1, J5, J8, J10, J11 designations not used3.5.2MT-3 Audio Processor Factory Configuration (Version 1.6)The MT-3 Audio Processor is factory configured as follows:• Maximum Deviation:±2.5 kHz (12.5 kHz or 15 kHz channel),±5.0 kHz (25 kHz or 30 kHz channel).• Microphone Input: 1 kHz signal at -10 dBm gives ±50% maximum deviation,1 kHz signal compression set at ±60% maximum deviation.• Audio Balanced Input:Enabled - pre-emphasis response,1 kHz tone at -8 dBm gives ±60% maximum deviation.1 kHz signal compression set at ±60% maximum deviation.• Subtone Input 1: 100 Hz tone at -18 dBm gives ±500 Hz deviation.• All other audio inputs:Disabled.• Time-Out-Timer:5 minutes ± 30 seconds.The corresponding Audio Processor jumper settings are:• Jumper JU1: not installedPower source select for Direct Modulation circuits.• Jumper JU2: not installedMT-2 deviation enable (MT-2 transmitters).• Jumper JU3:installedMicrophone preamplifier power enable.• Jumper JU4:installedBalanced audio preamplifier power enable.• Jumper JU5: not installedBalanced audio ground enable.• Jumper JU6:installedProcessed audio path enable (limited and filtered).• Jumper JU7: not installedUnprocessed auxiliary audio path enable (unfiltered).• Jumper JU8: not installedAudio output DC coupled (MT-2 transmitters).• Jumper JU9:installedBalanced input preemphasis response enable.• Jumper JU10: not installedBalanced input flat audio response enable.
3-4Transmitter Main Board Instruction Manual• Jumper JU11: not installedBalanced input to auxiliary audio circuit enable.• Jumper JU12: not installedTone/Digital input to auxiliary audio circuit enable.• Jumper JU13: not installedDirect modulation input to auxiliary audio circuit enable.• Jumper JU14: not installedAuxiliary input preemphasis response enable.• Jumper JU15: not installedAuxiliary input flat audio response enable.• Jumper JU16: not installed Subtone input 2 audio path select.• Jumper JU17:installedMT-2 Temperature compensation bypass.• Jumper JU18: not installedContinuous data mode selection.• Jumper JU19: 'y'position Power source for audio switches.• Jumper JU20 to JU22: not used• Jumper JU23: not installedDirect modulation input to subtone 2 enable.• Jumper JU24:installedLowpass filter response select.• Jumper JU25:installedLowpass filter response select.• Jumper JU26:installedLowpass filter response select.• Jumper JU27: not installedDirect Modulation input audio path select.• Jumper JU28: not installedAmplified direct modulation bypass.• Jumper JU29: not installedAmplified direct modulation input DC couple enable.• Jumper JU30: not installedAmplified direct modulation audio path select.• Jumper JU31: not installedSubtone 2, AC coupled,to direct modulation output enable.• Jumper JU32: not installedAudio output AC coupled (MT-3 crystal transmitters).• Jumper JU33: not installedAudio output AC coupled (MT-3 synthesized transmitters).• Jumper JU34: not installedAudio output from Direct Modulation circuits select.• Jumper JU35: not installedDirect Modulation output source select.• Jumper JU36: 'x' position Subtone input 1 audio path select.• Jumper JU37: not installedSummed Subtone audio to direct modulation output enable• Jumper JU38: not installedSubtone 2, DC coupled, to direct modulation output select.• Jumper JU39: not installedDirect Modulation low input impedance enable.3.6MT-3 Transmitter Board Alignmentinvisible text3.6.1GeneralBefore proceeding with the transmitter alignment, check that the appropriate jumpers are installed.The standard jumper configuration for the Transmitter Main Board, given in section 3.5.1, isnormally employed for transmitter alignment. In a standard configuration, the only alignmentrequired on the MT-3 Transmitter Main Board for a synthesized transmitter is to set the frequencyswitches (FSW1, FSW2, FSW3, and FSW4) for the desired channel frequency. FSW1 is themost significant digit of the frequency switches. The switch settings for the desired channelfrequency can be found in the channel designation tables. If the transmitter is using a crystalcontrol oscillator module, the switch settings are irrelevant.
Transmitter Main Board Instruction Manual3-53.6.2MT-3 Transmitter Board Test PointsTP1:squelched, de-emphasized audio / +13.8 VdcTP2:microphone audioTP3:microphone PTT WTO; inactive +9.5 Vdc, active 0 VdcTP4:microphone PTT NTO; inactive +9.5 Vdc, active 0 VdcTP5:+9.5 Vdc from backplane connectorTP6:+9.5 Vdc from front panel boardTP7:+9.5 Vdc SwitchedTP8:Qualified PTT; inactive +9.5 Vdc, active 0 Vdc: activated by synthesizerTP9: synthesizer enable; selected by J18TP10: synthesizer bootstrap line; +5 VdcTP11: synthesizer PTT input; inactive +9.5 Vdc, active 0 VdcTP12: audio processor TOT input; inactive +9.5 Vdc, active 0 VdcTP13: audio processor TOT output; inactive +9.5 Vdc, active 0 VdcTP14: audio processor audio outputTP15: audio processor audio control lineTP16: audio processor subtone #2 outputTP17: audio processor direct modulation inputTP18: audio processor subtone #2 inputTP19: audio processor continuous +9.5 VdcTP20: audio processor subtone #1 inputTP21: audio processor supply +8 Vdc, selected by J7TP22: audio processor tone/digital inputTP23: synthesizer receive data line; 0 VdcTP24: synthesizer transmit data line; +5 VdcTP25: Q1 collector; inactive 0 Vdc, active +9.5 VdcTP26: U2d output; inactive +9.5 Vdc, active 0 VdcTP27: U1a output (PTT WTO); inactive +9.5 Vdc, active 0 VdcTP28: U1b output (PTT NTO); inactive +9.5 Vdc, active 0 VdcTP29: Q6 collector / Q7 gate; inactive +9.5 Vdc, active 0 VdcTP30:+9.5 Vdc PTT SwitchedTP31: U8 pin 1, Time-Out-Timer circuitry set inputTP32: U8 pin 2, Time-Out-Timer circuitry reset inputTP33: Audio processor balanced audio inputTP34: Audio processor balanced audio input3.7Module Installation and RemovalInstallation of the Enhanced Synthesizer or Crystal Controlled Oscillator module is facilitated byalignment pins on each corner of the module. When the four pins are aligned with theircorresponding hole in the Transmitter Main Board, push the module down, taking care to ensure theconnector pins on the bottom of the Synthesizer or Crystal Controlled Oscillator module are notbent.
3-6Transmitter Main Board Instruction ManualTo remove the Enhanced Synthesizer or Crystal Controlled Oscillator module, simply remove thecenter screw from the module lid and pull the module out. The module should be pulled straightout so that the four alignment pins do not bend or damage the circuitboard. The Low Power Synthesizer uses two tabs soldered to the Transmitter Main Board for mounting.No alignment pins are used. As a result care must be taken to ensure the connector pins on thebottom of the Synthesizer are not bent. To install the low Power Synthesizer module, remove thetwo of the synthesizer side screws that correspond to the tabs on the Transmitter Main board andinstall the synthesizer module taking care not to bend the pins. Replace the two side screws;installing them through the tabs to hold the synthesizer module in place.When removing the Low Power Synthesizer module, it is important to gently lift the synthesizermodule "straight out" in order to prevent damage to the connector pins. Remove the two sidescrews holding the sinthesizer module to the tabs. Using a plastic coated lifting tool, such as asmall screwdriver with the tip covered in heat shrink material, gently lift the synthesizer modulefrom the Transmitter Main Board by applying pressure in a rotating fashion about four corners ofthe synthesizer module. Replace the two side screws.3.8MT-3 Audio Processor Alignment (Version 1.6)invisible text3.8.1GeneralVerify the standard factory settings for the MT-3 Audio Processor as given in section 3.5.2 beforebeginning the standard deviation adjustment procedure. If the transmitter's channel frequencychanges, the audio processor should be realigned to optimize the transmitter's performance. Theschematic diagram for the audio processor is shown in section 5.4.2 and the component layout isshown in section 5.4.1.3.8.2MT-3 Audio Processor Standard Deviation AdjustmentNote: clockwise rotation of controls increases signal levels.1 Connect the transmitter to the radio communications test set and monitor FMdeviation, distortion, and audio frequency. Before adjusting the audio deviation,confirm that the transmitter RF output frequency is correct.2 Connect the 600 ohm input to the incoming audio (pins B18, Z18). Set the audiofrequency to 1 kHz at the desired level of -8 dBm.3 Increase the balance level control (R31) for maximum gain.
Transmitter Main Board Instruction Manual3-74 Turn the transmitter on.5Adjust the balance compression level (R38) for compression at ±60% maximumdeviation.6 Set the audio frequency to 2.4 kHz, then adjust the deviation control (R29) formaximum deviation.7 Reset the modulating frequency to 1 kHz and re-adjust R38 for ±60% maximumdeviation.8Repeat steps 6 and 7 until both conditions are met.9 Vary the audio signal from 1 kHz to 3 kHz and measure the positive deviation andthen the negative deviation. Adjust the symmetry control (R14) until the ± deviation issymmetrical. The variation between ± deviation levels should not exceed 300 Hz overthe 1 kHz to 3 kHz range.10Repeat steps 6 and 7 and re-adjust if necessary.11Adjust the balanced input level control (R31) until the deviation produced by a 1 kHztone at -8 dBm falls below ±60% maximum deviation, then adjust R31 so that thedeviation increases until compression is observed. The deviation should be ±1.5 kHzor ±3 kHz for narrowband and wideband channels respectively.12 A 1 kHz tone at -8 dBm input level should produce ±60% maximum deviation. If not,go back to step 4 and make sure the pot is set for maximum gain and repeat theprocedure. If so, increasing the input level by +20 dBm should not increase thedeviation. This confirms that the AGC action of preamplifier U2 is working.13 A 2.4 kHz tone at the desired audio input level should produce the maximumdeviation. Increasing the input level by +20 dBm should not increase the deviation.This confirms that the limiting action of U4a and U5a is working.14 Set the audio frequency back to 1 kHz at -8 dBm output. Confirm and record audiodistortion with the appropriate filter on the communications test set.15 Confirm the audio frequency response by referencing all output deviationmeasurements to a 1 kHz input tone at ±20% maximum deviation (±500 Hz fornarrowband or ±1 kHz for wideband).16Remove the signal to the balanced input (pins B18, Z18).
3-8Transmitter Main Board Instruction Manual17 Apply a 1 kHz tone at -8 dBm to the microphone audio input. Set the microphonecompression control (R8) to produce ±60% maximum deviation. Reduce the signalto -10 dBm and adjust the microphone input level control (R2) for ±50% maximumdeviation. Remove the signal.18. Apply a 100 Hz tone at -18 dBm to the subtone 1 input and adjust the subtone 1 levelcontrol (R42) to produce ±500 Hz deviation. Remove the signal.3.9Standard Factory Settings and Jumper ConfigurationStandard factory settings and the associated jumper configuration for the MT-3 Audio Processor(Version 1.8) are given below.3.9.1 MT-3 Audio Processor Factory Configuration (Version 1.8)The MT-3 Audio Processor is factory configured as follows:• Maximum Deviation:±2.5 kHz (12.5 kHz or 15 kHz channel),±5.0 kHz (25 kHz or 30 kHz channel).• Microphone Input: 1 kHz signal at -10 dBm gives ±50% maximum deviation,1 kHz signal compression set at ±60% maximum deviation.• Audio Balanced Input:Enabled - pre-emphasis response,1 kHz tone at -8 dBm gives ±60% maximum deviation.1 kHz signal compression set at ±60% maximum deviation.• Subtone Input 1: 100 Hz tone at -18 dBm gives ±500 Hz deviation.• All other audio inputs:Disabled.• Time-Out-Timer:5 minutes ± 30 seconds.The corresponding Audio Processor jumper settings are:• Jumper JU1: not installedPower source select for Direct Modulation circuits.• Jumper JU2: not installedMT-2 deviation enable (MT-2 transmitters).• Jumper JU3: 'y' position Microphone preamplifier flat response.• Jumper JU4: not installedSubtone input 2 audio path select.• Jumper JU5: not installedAuxiliary input enable (DC or AC coupled).• Jumper JU6:installedProcessed audio path enable (limited and filtered).• Jumper JU7: not installedUnprocessed auxiliary audio path enable (unfiltered).• Jumper JU8: not installedAudio output DC coupled (MT-2 transmitters).• Jumper JU9:installedBalanced input preemphasis response enable.
Transmitter Main Board Instruction Manual3-9• Jumper JU10: not installedBalanced input flat audio response enable.• Jumper JU11: 'y' positionBalanced input to auxiliary audio circuit enable.• Jumper JU12: not installedTone/Digital input to auxiliary audio circuit enable.• Jumper JU13: not installedDirect modulation input to auxiliary audio circuit enable.• Jumper JU14: not installedAuxiliary input preemphasis response enable.• Jumper JU15: not installedAuxiliary input flat audio response enable.• Jumper JU16:installedSubtone input 1 audio path select.• Jumper JU17: not installedMT-2 Temperature compensation bypass.• Jumper JU18: not installedContinuous data mode selection.• Jumper JU19: not installedPower source for audio switches.• Jumper JU20: not installedPower source for Q2.• Jumper JU21: not installedPower source for bilateral switch U9.• Jumper JU22: 'x' position Audio output to lowpass filter• Jumper JU23: not installedDirect modulation input to subtone 2 enable.• Jumper JU24:installedLowpass filter response select.• Jumper JU25:installedLowpass filter response select.• Jumper JU26:installedLowpass filter response select.• Jumper JU27: not installedDirect modulation input audio path select.• Jumper JU28: not installedAmplified direct modulation bypass.• Jumper JU29: not installedAmplified direct modulation input DC coupled enable.• Jumper JU30: not installedAmplified direct modulation audio path select.• Jumper JU31: not installedAudio output AC coupled (MT-3 synthesized transmitters)• Jumper JU32: not installedAudio output AC coupled (MT-3 crystal transmitters).• Jumper JU33:installedAudio ouput AC coupled.• Jumper JU34: not installedAudio output from direct modulation circuits select.• Jumper JU35: not installedDirect Modulation output source select.• Jumper JU36: 'y' position Power source select for AGC Preamplifier.• Jumper JU37: not installedDirect modulation output enable.• Jumper JU38: not installedSubtone 2, DC coupled, to direct modulation output select.• Jumper JU39: not installedDirect modulation low input impedance enable.• Jumper JU40:installedPower for Microphone preamplifier enable.• Jumper JU41: not used.• Jumper JU42: not installedProcessed audio path to dircet modulation output.• Jumper JU43:installedBilateral switch U9 bypass enable.
3-10Transmitter Main Board Instruction Manual3.10MT-3 Audio Processor Alignment (Version 1.8)invisible text3.10.1GeneralVerify the standard factory settings for the MT-3 Audio Processor as given in section 3.9.1 beforebeginning the standard deviation adjustment procedure. If the transmitter's channel frequencychanges, the audio processor should be realigned to optimize the transmitter's performance. Theschematic diagram for the audio processor is shown in section 5.5.2 and the component layout isshown in section 5.5.1.3.10.2MT-3 Audio Processor Standard Deviation AdjustmentNote: clockwise rotation of controls increases signal levels.1 Connect the transmitter to the radio communications test set and monitor FMdeviation, distortion, and audio frequency. Before adjusting the audio deviation,confirm that the transmitter RF output frequency is correct.2 Connect the 600 ohm input to the incoming audio (pins B18, Z18). Set the audiofrequency to 1 kHz at the desired level of -8 dBm.3 Increase the balance level control (R31) so that the deviation increases untilcompression is observed.4Adjust the compression control pot (R38) for compression at ±60% maximumdeviation.5 Set the audio frequency to 2.4 kHz, then adjust the deviation control (R29) formaximum deviation.6 Reset the modulating frequency to 1 kHz and re-adjust R38 for ±60% maximumdeviation.7Repeat steps 4 and 6 until both conditions are met.8 Vary the audio signal from 1 kHz to 3 kHz and measure the positive deviation andthen the negative deviation. Adjust the symmetry control (R14) until the ± deviation issymmetrical. The variation between ± deviation levels should not exceed 300 Hz overthe 1 kHz to 3 kHz range.9Repeat steps 4 and 6 and re-adjust if necessary.
Transmitter Main Board Instruction Manual3-1110Adjust the balanced input level control (R31) so that the deviation increases untilcompression is observed. The deviation should be ±1.5 kHz or ±3 kHz fornarrowband and wideband channels respectively.11 Increase the input level (R31) by +20 dBm, it should not increase the deviation morethan maximum. This confirms that the AGC action of preamplifier U1 is working.12 A 2.4 kHz tone at the desired audio input level should produce the maximumdeviation. Increasing the input level by +20 dBm should not increase the deviation.This confirms that the limiting action of U4a and U5a is working.13 Set the audio frequency back to 1 kHz at -8 dBm output. Confirm and record audiodistortion with the appropriate filter on the communications test set.14 Confirm the audio frequency response by referencing all output deviationmeasurements to a 1 kHz input tone at ±20% maximum deviation (±500 Hz fornarrowband or ±1 kHz for wideband). Remove the signal to the balanced input (pinsB18, Z18).15 Apply a 1 kHz tone at -8 dBm to the microphone audio input. Set the microphonecompression control (R2) to produce ±50% maximum deviation. Reduce the signalto -10 dBm and adjust the microphone input level control (R2) for ±50% maximumdeviation. Remove the signal.16. Apply a 100 Hz tone at -18 dBm to the subtone 1 input and adjust the subtone 1 levelcontrol (R42) to produce ±500 Hz deviation. Remove the signal.3.11Low Frequency Modulation ConfigurationNote: the following information originates from Daniels Electronics document number A0361-06.3.11.1MT-3 TransmittersFor transmitters, the LTR™ or DCS signal should be applied to the DIRECT MODULATIONinput (pin Z28), which is also available on the M-3 and SR-3 motherboards at the controlconnectors J1, P1, or J7 on pins B20 (TX A DIR MOD) and A20 (TX B DIR MOD). The signalfrom an LTR™ or DCS encoder should be applied through a 47k resistor to reduce theloading effect of the DIRECT MODULATION input. The signal should be capacitivelycoupled to avoid pulling the transmitter frequency off centre. Most LTR™ and DCS encodermodules already have a capacitive output. Note that the controller generating the low frequencysignal will need to key the transmitter's PTT input. Note that the synthesizer and the audioprocessor may require modifications as described later in this document.
3-12Transmitter Main Board Instruction ManualMT-3 Transmitter (board version 43-920910 through 43-920911)• J6 installed (synthesizer always powered up by +9.5V SWITCHED line).• J7 installed in 'X' position (audio processor always powered up by +9.5VSWITCHEDline).• solder a wire from JA4-2 of main board to J51-18 of synthesizer. This connects thesubtone output 2 to the synthesizer's phase modulation input.MT-3 Transmitter (board version 43-920912 through 43-920913)• J6 installed (synthesizer always powered up by +9.5V SWITCHED line).• J7 installed in 'X' position (audio processor always powered up by +9.5VSWITCHEDline).MT-3 Transmitter (board version 43-920914 or higher)• J6 installed (+9.5V SWITCHED line always powered).• J7 installed in 'X' position. (audio processor always powered up by +9.5VSWITCHEDline).• J18 installed in the ''X' position (synthesizer always powered up by +9.5VSWITCHEDline).LTR™ is a Trademark of E.F. Johnson Company.3.11.2MT-3 Transmitter Audio ProcessorsMT-3 Transmitter Audio Processor (board version 43-911910 through 43-911913)•Remove R47 to avoid having too low an input impedance.• Change C40 to a 10 uF tantalum capacitor (stock code 1054-6E106M25) with the "+"polarity mark nearest to the edge of the PCB (see figure 3-1). This allows lowfrequencies to pass.• Short pins P4-1 and P4-3 (or install J23) together with a short piece of 22 or 24 gaugesolid wire and solder (see diagram below). This allows the DIRECT MODULATION
Transmitter Main Board Instruction Manual3-13input to the transmitter to be used to gain access to the SUBTONE INPUT 2 whichconnects to the PHASE MOD IN input of a modified synthesizer.• Make sure J13 and J16 are not installed.Figure 3-1Transmitter Audio Processor Low Frequency Modulation.REMOVE R47REPLACE WITH10 uF+SHORT TOP TWO PINSMT3TXMNM7MT-3 Transmitter Audio Processor (board version 43-911914 through 43-911916)• Install jumpers: JU38Y, JU35Y•Remove jumpers: JU27X, JU27Y, JU31, JU35X, JU37, JU38X• Short pins P4-1 and P4-3 (or install J23) together with a short piece of 22 or 24 gaugesolid wire and solder (see figure 3-1). This allows the DIRECT MODULATION inputto the transmitter to be used to gain access to the SUBTONE INPUT 2 which connects tothe PHASE MOD IN input of a modified synthesizer.Note that the SUBTONE 2 input should not be used while this modification is in effect. Note alsothat adjusting R44 has no effect on the deviation of the low frequency signal.MT-3 Transmitter Audio Processor (board version 43-911918)•Contact factory for configuration.3.11.3Synthesizer and Crystal Controlled OscillatorRefer to the manual for the Oscillator used in your Transmitter for the required Low FrequencyModulation modifications.
3-14Transmitter Main Board Instruction Manual3.11.4Tuning the TransmitterFor all MT-3 transmitters, apply a low impedance source of 20-300 Hz to the Direct Modulationinput of the transmitter (Pin Z28 of the 48 pin connector) through a 22 uF capacitor, positiveterminal connected to pin Z28. A Marconi 2955 works well for this test. Adjust R44 on the audioprocessor to the fully clockwise position.• Apply a 100 Hz tone at -8 dBm to the Direct Modulation input of the transmitter (Pin Z28of the 48 pin connector, and key the transmitter. Adjust the level of the tone until adeviation of 1.5 kHz is acheived. Note that the level required may be anwhere from -10dBm to 0 dBm depending on the type of transmitter.• Confirm that the frequency response rolls off by checking that the following deviationsare observed: (note that the deviation will NOT roll off at 300 Hz if an OC-3 crystaloscillator is used instead of a synthesizer).- 20 Hz tone gives about 700 Hz deviation- 100 Hz tone gives 1.5 kHz deviation- 300 Hz tone gives about 500 Hz deviation•Finally, confirm subtone 1 modulation: set-up for 100 Hz Mod with 500 Hz Dev.- Check 200 Hz Mod, Dev = 1.5 (VHF) / 2.0 kHz (UHF) - Check 300 Hz Mod, Dev = 1.5 (VHF) / 4.0 kHz (UHF)
Transmitter Main Board Instruction Manual4-14TRANSMITTER INTERCONNECT PIN DEFINITIONSThe MT-3 series Transmitter employs a 48 pin Eurostandard connector for interfacing to alltransmitter power, audio, and control functions. The following are the MT-3 series Transmitterbackplane connections to the M-3 Motherboard.PinNamePinNamePinNameD2 No Connect B2+13.8 VdcZ2+13.8 VdcD4 No Connect B4 MIC Out Z4 MIC InD6 No Connect B6+9.5 VdcZ6+9.5 VdcD8 No Connect B8 Relay Positive Z8 Relay NegativeD10 No ConnectB10PTT WTOZ10PTT WTOD12 No ConnectB12Tx StandbyZ12Tx StandbyD14 No Connect (IMC1)B14PTT NTOZ14PTT NTOD16 No Connect (IMC2)B16No Connect (MT-2 +9.5V)Z16No Connect (MT-2 +9.5V)D18 No Connect (IMC3)B18Balanced Input 2Z18Balanced Input 1D20 Channel Select 0 (LSB)B20Squelched,De-emph AudioZ20Squelched, Flat AudioD22 Channel Select 1B22Subtone Input 1Z22Tx Audio ControlD24 Channel Select 2B24PTT OutputZ24Subtone Input 2D26 Channel Select 3 (MSB)B26Forward Power SenseZ26Reverse Power SenseD28Synth Tx Data (Output)B28Monitor OutZ28Direct Mod InputD30Synth Rx Data (Input)B30GroundZ30GroundD32Synth Bootstrap (Input)B32GroundZ32Ground
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LED ENAXXXYYYYXXYB20J16RELAY1J2121311U2dU2cD32D20+9.5VDC+9.5 VDC213U2aJ17JP1-2+9.5 VDCZ20B4Z4B22Z18B18Z24Z28B12Z12B10Z10B14Z14B24D12D2B8Z8D8D10 J1D30D28D22D24D26Z22B26Z26Z30Z32B30D6D4 YXJ4XY+9.5V+9.5V OUTPUTGROUNDMIC PTT WTOMIC PTT NTOMIC AUDIOMT-3 FRONT PANEL BOARDRX AUDIO / +13.8V B2Z2+13.8VDCB6Z6RF OUTREFERENCEINPUT OS-3 SYNTHESIZER MODULERFRONT PANELN CONNECTORF IN RF OUT+9.5V+13.8VFOR REVENAMT-3 VHF/UHF AMPLIFIER MODULE ORLED ENA+9.5VDCPTT TRIGGERPTT WTOTRIGGER+9.5VDCSWITCHING CIRCUITRY+9.5VDCVSWR REVERSEFORWARD POWER FAILINDICATOR10-17 VOLTS+ 13.8 VDC NOMINALBACKPLANECONNECTORGROUNDGROUNDGROUNDGROUNDRX DATA INTX DATA OUTBOOTSTRAPCHANNEL SEL 0 (LSB)CHANNEL SEL 1CHANNEL SEL 2CHANNEL SEL 3 (MSB)TX AUDIO CONTROL+9.5 VDC PTT SWITCHEDJ12R2527K4 R261K0Q10PZT2222AJ14J15J13FUSE(OPTIONAL)+9.5 VDC CONTINUOUSJ9SQL DE-EMP INPUTMIC OUTMIC INBALANCED INPUTSIDE 2600 OHMSBALANCED INPUTSIDE 1SUBTONEINPUT #1SUBTONEINPUT #2SQL FLATINPUTDIRECT MODINPUTPTT WTOTX STANDBYNO2COMMON 2NC2RLY POSRLY NEGNC 2NC 1COMMON 1PTT NTOPTT OUTPUT PTT OUTPUTTX STANDBYPTT+ 9.5 VDC PTT SWITCHED+ 9.5 VDC SWITCHEDJ3YXJ7+ 9.5 VDC PTT SWITCHED+ 9.5 VDC SWITCHED81091 7 9 810 4 2 30123456789012345678901234567890123456789MSB LSBT1600ΩPTTYXJ18+ 9.5 VDC PTT SWITCHED+ 9.5 VDC SWITCHEDPTT OUTPUT8 VDCSUPPLY+9.5 VDCYXYXYXYXJ20J22J23J19AUDIO OUTPUTSUBTONE #2 OUTPUTMICROPHONEINPUTBALANCED INPUT+9.5V+8.0V SWITCHEDTONE/DIGITAL INPUTSUBTONE #1 INPUTSUBTONE #2 INPUTDIRECT MODULATION INPUTGNDMT-3 AUDIO PROCESSOR AUDIO CONTROL AM(N/C) AM(N/C) AM(N/C) AM(N/C) AM(N/C) AM(N/C)TOT INPUT TOT OUTPUT J35J33TOT INPUT TOT OUTPUT TIME OUT TIMERYXJ25JP1-7B32ELECTRONICS LTD.DANIELS TMMT-3 AM Transmitter Main Board Instruction Manual5 ILLUSTRATIONS AND SCHEMATIC DIAGRAMS 5.1 Transmitter Block Diagram5-1MT3TXMNM1D
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VICTORIA B.C .DATE: May 9, 1997DDANIELS ELECTRONICS BOARD No.: 43-920917DWG REV DATE:43-920917DWG No:9209AS3ATITLE:MT-3 Component Side SM LayoutFactory installed jumpersDWG No:9209AS4ATITLE:MT-3 Transmitter Component Side SM DesignationsJ27J26J29J28J32J31J35J33J342019181716151413T1SPT-196 JS3 JS2 JS165432112 MT-3 FRONT PANEL BOARD 1211109876543211R0W X 12PIN1ROW X 9PIN1ROW X 6PIN1ROW X 2PINRELAY1OPTIONAL MT-3 AUDIO PROCESSOR BOARD34123412341234123412JA1JA2JA3JA4JA5341212JF1JF2ENA+9.5V13.8VFORREVGNDDWG No:TX3AT9D TITLE:MT-3 Transmitter Component Side T/H Designations DWG REV DATE:34JF3AUDIO INC23100nFR42OPTFSW4BCD-10FSW3BCD-10FSW2BCD-10FSW1BCD-10MSDLSD- Components Not Installed12BSYNTHESIZER GROUND TAB(Low Power Synthesizer Only)SYNTHESIZERGROUND TAB(Low Power Synthesizer Only)OS-3 RFOUTPUTOC-3 RFOUTPUTOS-3H ENHANCED SYNTHESIZEROROC-3 CRYSTAL CONTROL MODULE OST-3H RFOUTPUTTP19TP20TP22TP213230282624222018161412108642DBZTP15TP16TP18TP17TP12TP13TP14TP1TP2TP3TP4TP5TP6TP8TP9TP10TP11TP7TP25TP26TP27TP28TP29TP30TP24TP23TP33TP34TP31TP32DEDANIELSELECTRONICS5-5Illustrations and Schematic DiagramsMT3TXMNM2BFactory installed jumpers5.2MT-3 AM Transmitter Board Electrical Assembly5.2.1MT-3 AM Transmitter Board Component Layout (Top) DEDANIELSELECTRONICS5-3MT-3 AM Transmitter Main Board Instruction Manual
VICTORIA B.C .DATE.: 9 May 1997DDANIELS ELECTRONICS BOARD No.: 43-92091743-920917+++++TITLE:MT-3 Transmitter Solder Side SM LayoutDWG No:9209AS3BDWG REV DATE:10 Aug. 1998+Factory installed jumpersComponents Not InstalledTITLE:MT-3 Transmitter Solder Side SM Designations DWG No:9209AS2D J18BYD17JD4R2 27k4D2BYD17JR9 221kR10100kR31k00D1BYD17JD3BYD17JR627k4R71k00R827k4C610nFC5100nFU13317210nF C7100nF C8R427k4R1510k0R1810k0U24081R1410k0Q1BC817BC817Q3R1227k4R1327k4R1127k4D6BYD17JC3 16V10µFC41µF16VQ9D15N06VQ8BC807R2468k1R2268k1R2310k0R2110K0R1910k0Q4BC817R2068k1D5 BYD17JQ5D5P06VQ7D5P06VU3MMAD1108U4MMAD1108C110µF35VR261k00Q10PZT2222R2527k4C21µF35VQ6BC817yJ4xJ9J17yxJ12J6R171k00C1210nFC1310nFLPF35LPF34LPF33LPF32LPF31LPF30LPF29LPF28LPF27LPF26LPF25LPF24LPF23LPF22LPF21LPF20LPF19LPF18LPF17LPF16LPF15LPF12LPF10LPF8LPF3LPF5LPF4LPF2LPF1D8BAS16yJ3xyJ2xxyJ21U6 LP 2951 y J7 xJ14yR29 82k5x J13 yR510R0J16R110R0R3015k0C154.7µFC1410nFD7BAS16M2.5 PRESS NUTxLPF14C101 µFy J25 xR1610k0xyxyJ20J23xyJ19J22J24x J15 yC204.7µF16VU8MC14536BR39221KU733172R321k00R3427k4R3368k1R31221kR38100kR371k00R36221kR3527k4C21100nFC22100nFR471k00Q11BC807-25R46221kR43221kR44221kR45221kR4115KR4010KxyR28DWG REV DATE:10 Aug. 1998F1(3A FUSE OPTIONAL)CONN1F/48 MALETITLE:MT-3 Transmitter Solder Side T/H DesignationsDWG No:TX3AT8DDWG REV DATE:10 Aug. 1998M2.5 x 10 PAN/PHIL. SCREW (2)Components Not Installed MT-3 AM AMPLIFIER GND: BLACK+ 13.8 VDC: REDMODULATION INPUT: YELLOWENA: BLUE+ 9.5 VDC: ORANGERF INBLKYELREDBLUE123456ORG75-4MT-3 AM Transmitter Main Board Instruction ManualDEDANIELSELECTRONICS5.2.2MT-3 AM Transmitter Main Board Component Layout (Bottom)MT3TXMNM3B x J15 yx J13 yJ6y J25 xy J7 x
DANIELSDEELECTRONICSJ6J7InstalledNot Installed'Y' Position'X' PositionJ18Installed Installed'Y' Position'X' Position'X' Position'X' PositionMODE 1 MODE 2 MODE 3 MODE 4AM/FM STANDBY MODESSTANDARD/LOW FREQUENCY MODULATIONSTD MOD VER. LF MOD VER.DESIGNJ6J7J18Installed'X' Position'X' PositionNot Installed'Y' Position'Y' PositionVICTORIA B.C.DEDANIELS ELECTRONICS Transmitter Main Board Instruction Manual 5-55.2.3 Transmitter Main Board Schematic DiagramDWG REV DATE: 9 OCTOBER 1998DWG No.: MT3TXMNM4BYXNCNCNCM M MML L LXBOARD REV: 1.7 BOARD No.: 43-920917TP34C23C17-C19 LPF6,LPF7 LPF11,LPF13Q2C9,C11,C16Q11R47U8J35U5R27J10,J11J1,J5,J8FSW4F1RELAY1HIGHEST REFERENCE DESIGNATORSLPF35T1D8----- ----- -----UNUSED REFERENCE DESIGNATORSTIME OUT TIMERAPPROX 0.8 VDCJF3-4JF3-3JF3-2JF3-1TOJ25 PIN3TOJP1-7XYXYXYXYXYJP1-5JP1-4JP1-6JP1-2JP1-1JP1-3XYYXYXYXYUNDER U6XYXYXYTITLE: MT-3 TRANSMITTER BOARD SCHEMATIC DIAGRAM JA5-1JA5-2JA5-3JA5-4JA2-4JA3-1JA4-2JA3-2JA4-4JA1-4 JA3-3JF2-3JF2-4JF1-4JA3-4JA2-3JA4-3JA4-1JA2-1JA2-2JA1-1JA1-2JA1-3APRVD:DWG BY: MIKE GAUBE DATE: 8 APRIL 1992JF1-1JF1-3JF2-2JF1-2JF2-1FRONT PANELN CONNECTORBACKPLANE CONNECTOR LPFLPF16LPFLPF17LPFLPF22LPFLPF5LPFLPF4LPFLPF19LPFLPF18LPFLPF20LPFLPF27LPFLPF21LPFLPF33LPFLPF12LPFLPF8LPFLPF10LPFLPF14LPFLPF26LPFLPF15Z12TX STANDBYB12PTT OUTPUTB24Z14PTT NTOB14NCD4NCD6NCD2RLY POSB8NCD8NCD10NCD12Z10PTT WTOB10DIRECT MODINPUTZ28SQL FLATINPUTZ20SUBTONEINPUT #2Z24SUBTONEINPUT #1B22BALANCEDINPUT #1Z18BALANCEDINPUT #2B18MIC INZ4MIC OUTB4SQL DE-EMPINPUTB20Z6+9.5V CONTINUOUSB6GROUNDB30GROUNDB32GROUNDZ32IMC1D14IMC2D16IMC3D18NC B16NC Z16RX MONITORB28RX DATA IND30TX DATA OUTD28BOOTSTRAPD32CHANNEL SEL 0(Least Significant Bit)D20CHANNEL SEL 1D22CHANNEL SEL 2D24CHANNEL SEL 3(Most Significant Bit)D26TX AUDIO CONTROLZ22VSWR REVERSEZ26FORWARD POWERFAIL INDICATORB26+10 TO +17 VOLTS+13.8 VDC NOMINALB2Z2LPFLPF2LPFLPF1LPFLPF34LPFLPF35LPFLPF23LPFLPF29LPFLPF28LPFLPF25LPFLPF24LPFLPF32LPFLPF31LPFLPF3010uFC31.0uFC4TP5TP2TP4TP3TP110nFC13TP6TO ALL 9.5V SUPPLY POINTS1.0uFC10J9J16J17TP20TP18TP22TP17TP19TP21NOT INSTALLEDR289.5V27K4R2 BYD17JD2BYD17JD1J31 9 874 3210RELAY1J4BAS16D7 10R0R127K4R41K0R3TP27231MC33172aU145678MC33172bU1BYD17JD327K4R6BYD17JD4BAS16D810R0R5 1K0R727K4R8TP2810nFC6100K0R10221K0R99.5V9.5VTP268 910MC14081cU2131211MC14081dU2100nFC89.5V564147MC14081bU2123MC14081aU29.5VGDSD15N06VQ9EBCBC807-25Q810K0R18TP11EBCBC817-25Q1EBCBC817-25Q39.5V9.5VEBCBC817-25Q4BYD17JD5BYD17JD6J6TP7GDSD5P06VQ5J21 Vin Error Sd GndVout Sense 5V Tap FB 85341267LP2951U615K0R309.5V10nFC1482K5R294.7uFC15J15J13J14EBCPZT2222AQ101K0R2627K4R25J129.5VTO ALL 13.8V SUPPLY POINTS13.8V10uFC11.0uFC2TP8TP1513.8VTP9TP16TP141K0R17J1810K0R16TP23TP24TP109.5V9.5V SWITCHEDJ7TO ALL 9.5V SWITCHEDSUPPLY POINTSTO ALL 9.5V PTT SWITCHEDSUPPLY POINTS9.5V PTT SWITCHED9.5V PTT SWITCHEDMICROPHONE INPUTBALANCEDINPUT+9.5V+8.0V SWITCHEDTONE/DIGITALINPUTAUDIO OUTPUTSUBTONE #1 INPUTSUBTONE #2 INPUTDIRECT MODULATIONINPUTAUDIOSUBTONE #2OUTPUTTOT INPUT TOT OUTPUTGND GNDMT-3 AUDIOPROCESSOR 13.8 VQUALIFIEDPTTPTTGNDCONTROL216453AUDIO XFMRT110nFC1227K4R1327K4R1227K4R1110K0R1910K0R151 210K0R1468K1R2010K0R2368K1R24100nFC510nFC7J20J22J23J24J19J25+9.5V INPUT+9.5V OUTPUTLED ENAGROUNDMIC PTT WTOMIC PTT NTOMIC AUDIOMT-3 FRONT PANEL BOARDRX AUDIOSPARE+13.8VGROUNDRX MON13.8VRF IN RF OUT+9.5V+13.8V ENA GND FOR REVORMT-3 VHF/UHF AMPLIFIER MODULE AUDIOINXXXXLPFLPF3F1OPTIONALRLY NEGZ868K1R229.5VEBCBC817-25Q6TP30TP29GDSD5P06VQ710K0R21100nFC22221kR39C23100nF221kR44221kR45221kR46221kR4315k0R4127k4R3568k1R33221kR311k00R32221kR3627k4R34100kR381k00R37OPTR42J26J27J32J28100nFC2132841aMC33172U7Q11BC807-25SETRESETIN1OUT1OUT2BYPCLK INHVSSVDDMONOOSC INHDECDCBAMC14536B12345678161514131211109U8TP25567MC33172U7b9.5V4.7uFC201k00R4710k0R40J29 J31J35J33J34TO ALL TOT 9.5VTOT 9.5VTOT 9.5VTOT 9.5VTP12TP31 TP32TP13TP33TP34GROUNDZ30OC-3 CRYSTAL CONTROL MODULEP1-18 P1-20 P1-12 P1-19 P1-11 P2-2 P1-17 P1-9P3-2P3-1P2-5P1-10P1-7P1-3P2-3P1-16P1-8P1-15P1-14P1-6P1-13P1-5P1-4P1-2 P1-1 P2-1 P2-4 P2-6RFOUTPUTREFERENCEINPUTOS-3 SYNTHESIZEROR0123456789MSDFSW1135724689 11 13 15 10 12 14 16U3MMAD11087531864215 13 11 9 16 14 12 10U4MMAD11080123456789FSW20123456789FSW30123456789LSDFSW49.5V SWITCHEDJ2PTTTOT INPUTTOT OUTPUTQUALIFIED PTTQUALIFIED PTTJP1-7JP1-72.2 Vdc9.4Vdc2.9 Vdc2.9Vdc
DEDANIELSELECTRONICS5-6Transmitter Main Board Instruction Manual5.3Front Panel Board5.3.1Front Panel Board Component Layout D1MIC1234PF2SW1PF1+c b af e dKEYEDNORM J1YXSolder Jumper On Solder Side Of PCB.Factory Installed Solder Jumper.MT3TXMNM5APF3J2YX43-921212P121436587123412341234
DEDANIELSELECTRONICSTransmitter Main Board Instruction Manual5-75.3.2Front Panel Board Schematic DiagramVICTORIA B.C .DATE.:DWN:DWG No:TITLE:APRVD:BOARD NO.:BOARD REV.:DWG REV DATE:DEDANIELS ELECTRONICS NORMKEYEDYMIC-1MIC-3MIC-4MIC-2PF2-1PF2-4PF2-3PF2-2PF1-3PF1-2PF1-1PF1-4XM. GAUBEMT-3 FRONT PANEL BOARD43-921212 1.2PF3-2PF3-1PF3-4PF3-3YX07 APRIL 199228 MAY 97MT3TXMNM6AD1J1N/IC1 1234MIC1234PF1PF24213PF312345678P1J2FEDCBASW1+9.5V INLED ENAMIC PTT NTOMIC PTT WTOMIC INPUTMIC INPUTMIC PTTMIC PTTRX MONRX MON+9.5V OUT+9.5V OUTRX AUDIORX AUDIO+13.8V+13.8VSPARESPARE
DWG No:TXADPROASTITLE:MT-3 Tx Audio ProcessorVICTORIA B.C .DDANIELS ELECTRONICS LTD. DATE: 19 April, 1996BOARD No.: 43-911916REV DATE: 22 August, 1996 43-911916DWG No: TX ADPROASTITLE: MT-3 Tx Audio ProcessorDWG No:TXADPROAS1ATITLE:MT-3 Tx Audio Processor SM LayoutINSTALL JUMPERSU1SL6270R25k POTMICROPHONE INPUT LEVEL CONTROLR8100k POTMICROPHONE COMPRESSIONCONTROLU2SL6270R315k POTBALANCE INPUT LEVEL CONTROLR38100k POTBALANCED COMPRESSION CONTROLFB1Ferrite BeadU5MC33174U3MC33172R425k POTSUBTONE INPUT 1 CONTROL LEVELR2950k POTDEVIATION CONTROLU4MC33172R7550k POTDC LEVEL ADJUSTR445k POTSUBTONE INPUT 2 CONTROL LEVELU8MC33172C554.7µFU10TC4S66FQ2TC4S66FC564.7µFR48100K POTAUXILIARY INPUT LEVEL CONTROLR1450k POTSYMMETRY ADJUSTR8227k4C710nFR61k00C102.2µFR51k00C11150pFR351k00 JU3 C4100nFR1604RR720k0R36k81C610nFR8327k4R361k00R3720k0C336.8µFR4221kR34221kC510nFJU4C34150pFJU5R331k50C304.7µFJU11C28100nFR321k5R181kR201k82R8539k2JU24R8439k2R235k11R245k11R253k48R263k48R8622k1R8722k1C294.7µFJU25JU26R9221kC1310pFR1211k8C1510nFR1149k9R1049k9C14100nFC3610pFC544.7µFC20100nFR2149k9R2249k9C5310nFR174k53R89100kR2813k3R2713k3R30681RC34.7µFR39221kR88100kJU2JU23JU12JU13R1549k9C1710nFR8068k1R1349k9R511k50JU6R50221kR4927k4R4111k8R5211k8JU29JU14JU10JU9JU15C19150pFJU27JU36JU16JU7R16100kR474k53JU39C4910nFC524.7µFC18100nFR4311k8JU1R7427k4C504.7µFJU38JU30JU35JU34JU28C51100nFR7949k9R7720k0R7849K9JU37R4539k2JU31JU8JU33JU32R73221kR7239k2C58150pFR61221kR7163k4R464k53R401k50YXXYXYYXXYXYYXXYYXBC817-25U9DWG No:TXADPROAS3BTITLE:MT-3 Tx Audio Processor SM Value / Designation C847µFC3147µFJU18JU19YXR9010kJU17REV DATE: 30 October 1996 P5-1P7-1P6-1P8-1C9100nFC12680nFC324.7nFC2210nFC2110nFC2410nFC261nFC2515nFC2322nFR8110k THERM.C164.7nFC374.7nFC434.7nFC41150nFC38330nFC44330nFC481µFC39330nFC2733nFC571µFC401µFC471µFP1P2P4P312341234123412341234123412341234TITLE:MT-3 TX Audio Processor T/H Layout (Standard Version)DWG REV DATE:DWG No:VUAP3AT1D P1P2P4P3C35330nFDWG REV DATE:2 September 1997R19DEDANIELSELECTRONICSMT-3 Transmitter Instruction Manual5.5MT-3 Audio Processor Electrical Assembly- PCB No. 43-9119165.5.1MT-3 Audio Processor Component LayoutFigure 5-9MT-3 Audio Processor Component Layout5-8 Low Frequency Modulation Configuration DesigLow Freq.JU27XJU27YJU31JU35XNot InstalledNot InstalledNot InstalledNot InstalledJU35YJU37JU38XJU38YInstalledNot InstalledNot InstalledInstalledDesigLow Freq.NOTE: For Low Frequency Modulationshort pins P4-1 and P4-3 together.MT3APM1A
DANIELSELECTRONICS LTD.TM Low Frequency Modulation Configuration DesigLow Freq.JU27XJU27YJU31JU35XNot InstalledNot InstalledNot InstalledNot InstalledJU35YJU37JU38XJU38YInstalledNot InstalledNot InstalledInstalledDesigLow Freq.TVICTORIA B.C.DEDANIELS ELECTRONICS T5-9Transmitter Main Board Instruction Manual5.4.2 Audio Processor Schematic Diagram V1.6DWG REV DATE: 28 NOVEMBER 1997DWG No: MT3APM2C Not Installed if TOT circuitry installedin Tx Main PCB 43-920917NOTE: 400 MHz CTCSS Subtones from an EnhancedSynthesizer are routed by installing jumpers JU35Y(remove JU35X), JU36Y (remove JU36X) and JU37.NOTE: For Low Frequency Modulation, short pins P4-1and P4-3 together.JU39JU20-JU22R76U6-U7R90TP2J4U10P8R53-R60Q1Q2C58C1,C2FB1----- ----- -----UNUSED REFERENCE DESIGNATORSHIGHEST REFERENCE DESIGNATORSLOW FREQUENCY / DIRECT MODULATION OUTPUTXYhigh = voicelow = dataBOARD REV: VERSION 1.6BOARD No: 43-911916DEVIATIONCONTROLYXYXYXYXYXYXYXY XY XYXYXYX+++++++DIRECTMODULATIONINPUTAPRVD:DWN BY: MICHAEL GAUBEDATE: 19 SEPTEMBER 1991TITLE: MT-3 TX AUDIO PROCESSOR SCHEMATIC DIAGRAM+MODULATIONOUTPUTBALANCED INPUTMICROPHONE INPUTLEVEL CONTROL6 POLE BUTTERWORTH FILTERBALANCEDCOMPRESSION CONTROL+PRE-EMPHASISFLAT AUDIO+++PRE-EMPHASISFLAT AUDIOMICROPHONE AGC PREAMPMICROPHONECOMPRESSIONCONTROLSYMMETRYADJUSTBALANCEDAGC PREAMPBALANCEDINPUT LEVELCONTROLAUXILIARY INPUT604RR1100nFC410nFC510nFC66k81R310nFC7 47uFC8 221kR43451 6278SL6270U12.2uFC10100nFC91k00R6150pFC111k00R520k0R7680nFC12221kR910pFC134.7nFC16100kR16150pFC1910nFC1749k9R15100nFC284.7uFC291k50R3247uFC31 221kR343451 6278SL6270U25kR31681RR30 4.7uFC301k50R33 6.8µFC334.7nFC321k00R36150pFC341k00R35330nFC35100kR3820k0R3710pFC36 1k50R404.7nFC3711k8R4150kR29221kR5027k4R49 150nFC41 1k50R514.7nFC4322nFC233k48R263k48R2510nFC2415nFC2513k3R2813k3R271.0nFC26FB1100nFC1411k8R522k21R2049k9R13330nFC391.0uFC4011k8R435kR425kR44100nFC2049k9R11100kR833nFC27330nFC38330nFC44100kR484k53R4649k9R2149k9R224k53R17681RR1868k1R80221kR3910kR8110nFC215k11R245k11R2310nFC22100nFC18300RR19R1211k810nFC1527k4R8227k4R8322k1R861.0uFC47JU3JU4JU5JU12JU2JU9JU10JU14JU15JU7JU8JU32JU33+8.0V_SWD+8.0V_SWD+8.0V_SWD+8.0V_SWD+9.5V_CONTINUOUS39k2R84JU24 JU25 JU26JU27JU29JU2839k2R85100kR8922k1R8749k9R7849k9R79Q2BC817-25100kR884.7uFC50 100nFC5127k4R7410nFC49JU1+8.0V_SWDJU31JU11JU1320k0R774.7uFC3 4.7uFC52 4.7uFC5410nFC534.7uFC5532841MC33172U3a567MC33172U3b567U8bMC33172567MC33172U4b4.7uFC561.0uFC48221kR7363k4R71JU30JU23JU39JU38150pFC58JU16JU3623841MC33172U8a23841U4MC33172a234111MC33174U5a567U5MC33174b1098cMC33174U51213 14U5MC33174dJU35JU3439k2R45JU371.0uFC5739k2R72221kR613P12P11P14P13P33P24P21P21P43P42P21P32P44P4TP1TP24k53R4712350kR145kR250kR751J2 1J41J31J11P81P71P61P54P3 2P31 2345TC4S66FU9MT-3 TX TIME-OUT-TIMER10kR90JU6JU191 2345TC4S66FU10JU17JU181P91P101P111P131P12+8.0V_SWD+9.5V_CONTINUOUS+8.0V_SWD1P151P1449k9R10+8.0V_SWDMICROPHONE INPUTTO_PIN_3_OF_U4SUBTONE INPUT 1TONE/DIGITAL I/PV offsetV offsetTx Audio ControlSUBTONE INPUT 2TO_PIN_3_OF_U3
VICTORIA B.C .DANIELS ELECTRONICSDRAWN BY: SHANE ADWG REV DATE: 23 APR. 99DATE: 19 APRIL 1996DWG No: XXXXXAT1TITLE: AM TRANSMITTER DTITLE: AM TRANSMITTER SURFACE MOUNT LAYOUT TITLE: FM TX AUDIO PROCESSOR BOARD OUTLINEELECTRONICSPCB 43-911918DWG No: TXADPROAS1TITLE: MT-3 Tx Audio Processor SM Layout- COMPONENTS NOT INSTALLEDDWG No: TXADPROAS2BTITLE: MT-3 Tx Audio Processor SM Layout / Jumpers- JUMPERS INSTALLEDFB1DWG No: TXADPROAS3BTITLE: MT-3 Tx Audio Processor SM DesignationsR25k POTMICROPHONEINPUT LEVELCONTROL U1SA5780C810µFR315k POTBALANCEINPUT LEVELCONTROLR38100k POTBALANCECOMPRESSIONCONTROLU3MC33172R48100k POTAUXILIARYINPUT LEVELCONTROLR1450k POTSYMMETRYADJUSTU5MC33174R425k POTSUBTONEINPUT 1CONTROLLEVELU4MC33172R2950k POTDEVIATIONCONTROLR7550k POTDC LEVELADJUSTR3650k POTTCXO LEVELADJUSTC454.7µFC554.7µFU8MC33172 Q2BC817U9TC4S66FU10TC4S66FJU33 JU8R7720k0R5549k9 JU18JU19XYJU31JU28XYJU34XYJU35XYR7949k9C504.7µFJU20XYJU30YXJU38XYR9010k0R720R0R760R0R949k9 C1010nFJU21 JU1XYXYR7427k4R849k9R4311k8JU39R474k53JU27XYJU4 JU29 R5211k8R4149k9 R4927k4R50221kJU6JU22X YC524.7µFJU7JU16R73221kC18100nFC4910nFJU14JU10JU9JU15R16100kR53N/IC1710nFR1549k9JU23JU13 JU12C34.7µFJU2JU11JU17JU3XYJU24YXJU25JU26XYXYC22.2µFC72.2µFC94.7µFC304.7µFC544.7µFC510nFC4100nFR1604RR737k4R35k11R3749k9R8539k2R20SELR58k25R32470kR331k50C1510nF R1149k9R43k01R6N/IR18SELR30681RR1049k9R54274RR3568k1C3610pFR39221kR7163k4R464k53R1349k9 R8068k1R3475k0C121nFR2149k9 C5310nFR17SELR88100k R2713k3 R2813k3 R89100kR8622k1R8722k1R253k48R263k48R245k11 R235k11R8439k2JU44XYJU5JU37JU43JU42JU32C51100nFR12N/IR511k50R401k50R440R0XYYXC11100nFJU36YXJU40R45N/IC20100nFR2249k9DWG No: TXADPROAT1TITLE: MT-3 Tx Audio Processor Through Hole Layout4123412341234123DWG No: TXADPROAT2 TITLE: MT-3 Tx Audio Processor Through Hole DesignationsC2410nF C471.0µFC46100nFC2733nFC481.0µFC44330nFC38330nFC41150nFC2322nFC2515nFC261.0nFC2110nFC2210nFC35330nFC610nFC1220nFR19SEL R8110kC39330nFC374.7nF C434.7nFP1 P2 P4 P312A B C D E F G H I J5-10 5.5 Audio Processor Electrical Assembly (Version 1.8)5.5.1 Audio Processor Component LayoutTransmitter Main Board Instruction ManualSolder SideComponent Side TP2TP1MT3APM1B34K L M N O P Q R S TR74 C2R75 R3R76 B1R77 B2R79 A2R80 F2R81 O4R84 I2R85 I2R86 H2R87 H2R88 F2R89 G2R90 B1TP1 D1TP2 E1U1 L3U3 N3U4 R3U5  N4U8  S3U9 S4U10 T4JU7 C1JU8 A2JU9 D1JU10D1JU11H1JU12F1JU13F1JU14 D1JU15D1JU16C1JU17H2JU18D2JU19B2JU20A1JU21B2JU22E2JU23F1JU24 I2JU25 G2JU26 G2JU27 D2JU28 A2JU29 D2JU30 A1JU31 A2R9 B1R10 H1R11 G1R12 D1R13 F2R14 O3R15 E1R16 D2R17 G2R18 H2R19 K3R20 I2R21 G1R22 G1R23 H2R24 H2R25 H2R26 H2R27 F2R28 F2R29 R3R30 H1R31 M3R32 I1R33 I1R34 G1R35 G1R36 S3R37 I2R38 N3R39 F1R40 E1R41 E2R42 Q3R43 C2R44 E1R45 G1R46 F1R47 C2R48 O3R49 E2R50 E2R51 D1R52 E2R53 E1R54 G1R55 A2R71 F1R72 B1R73 C1C36 G1C37 P3C38 P4C39 Q3C41 P4C43 P3C44 Q4C45 S4C46 T4C47 T4C48 Q4C49 C1C50 B2C51 T3C52 C2C53 G1C54 N3C55 T3FB1 K3JU1 B2JU2 F2JU3 J1JU4 D2JU5 E2JU6 E1C1 K4C2  I1C3 F1C4 J1C5 J2C6 L4C7 I1C8 K4C9 I2C10 B1C11 I1C12 G2C15 G1C17 E1C18 C1C20 H1C21 M4C22 M4C23 O4C24 M4C25 O4C26 O4C27 R4C30 H1C35 L4COMPONENT LOCATION TABLEDES LOC DES LOC DES LOC DES LOC DES LOC DES LOC DES LOCJU32 A2JU33 A2JU34 A1JU35 A1JU36 J1JU37 E1JU38 B1JU39 C2JU40 J1JU42 E1JU43 C1JU44 C2P1  L4P2 O4P3 S4P4 R4Q2 T3R1 J1R2 K3R3 J2R4 H1R5 I1R6 H1R7 J1R8 C1ELECTRONICS LTD.DANIELS TM
AABBCCDDEEFFGGHHIIJJKKLLMMNNOOPP1 12 23 34 45 56 67 78 89 91 10 0DANIELSELECTRONICS LTD.TMJU32 N7JU33 N7JU34 N7JU35 N8JU36 E3JU37 P8JU38 F7JU39 B8JU40 C2JU42 M6JU43 M7JU44 L7P1-1 A4P1-2 A4P1-3 A3P1-4 A5P2-1 A6P2-2 G7P2-3 A5P2-4 A5P3-1 O7P3-2 D9P3-3 A5P3-4 A9P4-1 A7R47 B8R48 E6R49 F6R50 G6R51 H6R52 H7R53 O8R54 P8R55 K8R71 G3R72 C8R73 C8R74 C7R75 C7R76 D8R77 K6R79 K7R80 G3R81 G2R84 J5R85 J5R86 K5R87 L5R88 M5R89 N5JU7 L6JU8 N6JU9 H4JU10H5JU11C4JU12B6JU13C6JU14H6JU15H7JU16H8JU17K4JU18J7JU19J6JU20K7JU21M6JU22L4JU23E7JU24 J5JU25 L5JU26 M5JU27 B8JU28 B8JU29 B8JU30 E8JU31 N6P4-2 P8P4-3 A8P4-4 J8Q2 K8R1 C2R2 C3R3 C3R4 E3R5 D4R6 D5R7 E5R8 F6R9 G7R10 G4R11 G5R12 N7R13 I2R14 I2R15 I3R16 J4R17 K3R18 K4R19 K3R20 L4R21 K2R22 K3R23 J5R24 J5R25 L5R26 L5R27 M5R28 N5R29 L6R30 B4R31 C4R32 D4R33 C4R34 O7R35 N7R36 O7R37 F4R38 F4R39 H3R40 H4R41 H5R42 G8R43 H8R44 O8R45 O8R46 B6R90 K8TOT B9TP1 J2TP2 C7U1 D4U3a G4U3b O8U4a J3U4b G6U5a L3U5b K5U5c M5U5d N5U8a C8U8b E8U9 M7U10 M8Vset C7Vset O8C36 G3C37 H4C38 H5C39 H8C41 G6C43 H6C44 H7C45 M6C46 N6C47 N7C48 B8C49 C7C50 D7C51 D7C52 J2C53 K3C54 K2C55 L7FB1 B3JU1 D7JU2 G3JU3 D3JU4 B7JU5 F6JU6 O6C1 C3C2  D5C3 G4C4 B2C5 C3C6 C3C7 E5C8 E5C9 E4C10 G7C11 E4C12 O7C15 F5C17 J3C18 J2C20 K2C21 K5C22 K5C23 M5C24 L5C25 N5C26 N5C27 N7C30 C4C35 F4COMPONENT LOCATION TABLEDES LOC DES LOC DES LOC DES LOC DES LOC DES LOC DES LOC DES LOC VICTORIA B.C.DEDANIELS ELECTRONICS 5-11Transmitter Main Board Instruction Manual5.5.2 Audio Processor Schematic Diagram V1.8SUBTONE INPUT 1CONTROL LEVELDWG REV DATE: 19 NOVEMBER 98BOARD No: 43-911918DWG No: MT3APM2D TITLE: MT-3 TX AUDIO PROCESSOR SCHEMATIC DIAGRAMDATE: 12 MAY 98YXYXYXJU41 -----U2,U6,U7R78,R82,R83R56-R70C40,C42C31-C34C19,C28,C29C13,C14,C16U10TP2R90P4Q2JU44FB1C55BOARD REV: VERSION 1.8AUXILIARY INPUT LEVEL CONTROLOPTIONALDC LEVEL ADJUSTPRE-EMPHASISFLAT6 POLE BUTTERWORTH FILTERNOT INSTALLED FOR DIGITAL MOD.+9.5V CONTINUOUSYXYXHIGHEST REFERENCE DESIGNATORSUNUSED REFERENCE DESIGNATORS-----YYXXCOMPRESSION CONTROLAGC PREAMPYXTCXO LEVEL ADJUSTDWN BY: STAN POLYAKOVYXLOW FREQUENCY / DIRECT MODULATION OUTPUThigh = voicelow = dataDEVIATIONCONTROLYXYXYXYXYXYXYXYXYXYXDIRECTMODULATIONINPUTAPRVD:MODULATIONOUTPUTBALANCED INPUTMICROPHONE INPUTLEVEL CONTROLPRE-EMPHASISFLAT AUDIOPRE-EMPHASISFLAT AUDIOSYMMETRYADJUSTBALANCEDINPUT LEVELCONTROL3P12P11P14P13P33P21P21P43P42P21P32P44P4+9.5V CONTINUOUS1 2100nFC4612JU41 2JU371 2R760R01 2R720R01 2R849K91 2JU164P2+9.5V CONTINUOUS12C304.7uF12C72.2uF12C94.7uF 12C34.7uF12R1049K912R1149K912C22.2uF12C810uF213JU221210nFC101210nFC15+9.5V CONTINUOUS +9.5V CONTINUOUS+9.5V CONTINUOUS12C454.7uF12C554.7uF1 2JU181 2C434.7nF1 2C44330nF1 2R511K501 2R5211K81 2JU141 2JU151 2R50221K01 2R4927K412R949K9123R48100K01 2JU1212JU13123R425K012JU2312R464K53123JU38123JU30123JU112C51100nF12C504.7uF1 2R7427K4123R7550K01 2C4910nF1 2C481.0uF1 2JU2912JU3912R474K53 123JU28123JU2783214aU8MC33172657bU8MC33172123R38100K01 2R7163K41 2R8068K112R39221K01 2C3610pF1 2C39330nF1 2R4311K81 2C38330nF1 2R401K501 2C374.7nF1 2JU91 2JU101249K9R131249K9R151 2100K0R161210nFC1783214MC33172aU4657MC33172U3b1249K9R211249K9R221210nFC531 24K53R171 22K21R201 25K11R231 25K11R241 239K2R841 239K2R851 23K48R251 23K48R261 222K1R861 222K1R871210nFC22 1210nFC241 210nFC211 222nFC23657MC33174bU5910 8MC33174cU51312 14MC33174dU51 213K3R271 213K3R281 2100K0R881 2100K0R891 215nFC25121.0nFC261 21.0uFC471 233nFC271 2JU81 2JU712350K0R291 2345TC4S66FU91 2345TC4S66FU101249K9R791 249K9R551210K0R90EBCBC817-25Q2123JU35123JU3412100nFC41210nFC512604R0R11235K0R212681R0R30 1 21K50R331 2FB11 2330nFC351 2150nFC4112350K0R1412221K0R731220K0R77TP2TP143218U3aMC33172657U4bMC33172234111U5aMC331741 2R8110K123JU24123JU25123JU26VccRect inRect CapOutputInput 1GNDG inMuteFiltVRefI Ref 13111081214167 1556U1SA578D+8.0V SWD+8.0V SWD+8.0V SWD+8.0V SWD+8.0V SWD+8.0V SWD+8.0V SWD+8.0V SWD+8.0V SWD+8.0V SWD12JU612JU42+9.5V CONTINUOUSMT-3 TX TIME-OUT-TIMERJ3J2 J4J1P7P6P5P84P3 2P3111235K0R3112N/IR121 20R0R441 2N/IR5312N/IR6213JU111 2N/IR4512R737K412R58K2512R43K0121 3JU36123JU3 1 2JU212470K0R321 2R3749K91 2R4149K91 21K2R191 21K0R18124.7uFC54 12100nFC20124.7uFC52 12100nFC1812100nFC111 275K0R341 21.0nFC121 2274R0R541268K1R3512350K0R361 210nFC61 2220nFC11 25K11R31 2JU40123JU51 2JU17123JU20123JU19123JU44123JU211 2JU321 2JU431 2JU331 2JU31MICROPHONE INPUTSUBTONE INPUT 1TONE/DIGITAL I/PSUBTONE INPUT 2Tx Audio ControlVsetVset
DEDANIELSELECTRONICS5-12Transmitter Main Board Instruction ManualThis Page Intentionally Left Blank
Transmitter Main Board Instruction Manual6-16PARTS LISTSinvisible text6.1 Transmitter Main Board Parts List invisible text6.1.1Transmitter Main Board Electrical Parts ListRefDesig Description Part No.C1CAP., SM, 10µF TANT., 10%, 35V 1055-6D106K35C2CAP., SM, 1.0µF TANT., 20%, 35V 1055-5B105M35C3CAP., SM, 10µF TANT., 20%, 16V 1055-6C106M16C4CAP., SM, 1.0µF TANT., 20%, 16V 1055-5A105M16C5CAP., SM, 100nF CER, 0805, X7R 1008-5A104K5RC6, C7CAP., SM, 10nF CER, 0805, X7R, 50V 1008-4A103K5RC8CAP., SM, 100nF CER, 0805, X7R 1008-5A104K5RC10CAP., SM, 10µF CER/2225 50 X7R 1008-6H105J5RC12- C14CAP., SM, 10nF CER, 0805, X7R, 50V 1008-4A103K5RC15CAP., SM, 4.7µF TANT., 10%, 16V1055-5B475K16C20CAP., SM, 4.7µF TANT., 10%, 16V 1055-5B475K16C21, C22CAP., SM, 100nF CER,0805,X7R,50V 1008-5A104K5RC23CAP., 100nF FILM, MMK5, 10%, 63V 1016-5A104K63D1 - D6 DIODE, BYD17J RECTIFIER, SOD-872101-BYD17J00D7, D8 DIODE, BAS16, SWITCHING, DO35 2100-BAS16000F1FUSE, 3AMP FAST-BLO, 1-1/4 IN. 5604-5GAGC030 (Optional)FH1,FH2FUSE CLIP, O.250"DIAM., W/EAR 5609-C250P01B (Optional)FSW1-4 SWITCH, BCD-10 STEPS,5 PIN,PCB 5273-10BCD001JS1-1 SOCKET STRIP, 1 ROW X 12 PIN 5016-SL112G08JS1-13 SOCKET STRIP, 1 ROW X 9 PIN 5016-SL109G08JS2-1 SOCKET STRIP, 1 ROW X 6 PIN 5016-SL106G08JS3-1 SOCKET STRIP, 1 ROW X 2 PIN 5016-SL102G08LPF1-5FILTER, SM. EMI/LPF, 360 PF, FER.1306-T361F2D5LPF8FILTER, SM. EMI/LPF, 360 PF, FER.1306-T361F2D5LPF10FILTER, SM. EMI/LPF, 360 PF, FER.1306-T361F2D5LPF12FILTER, SM. EMI/LPF, 360 PF, FER.1306-T361F2D5LPF14-35FILTER, SM. EMI/LPF, 360 PF, FER.1306-T361F2D5PCB MT-3 TRANSMITTER, MAIN, VER 1.7 4321-10920917Q1TRANSISTOR, BC817-25 NPN, G.P., SOT-23 2120-BC817025Q3-Q4TRANSISTOR, BC817-25 NPN, G.P., SOT-23 2120-BC817025Q5MOSFET, D5P06V P-CHANNEL, DPAK 2144-D5P06V00Q6TRANSISTOR, BC817-25 NPN, G.P., SOT-23 2120-BC817025Q7MOSFET, D5P06V P-CHANNEL, DPAK 2144-D5P06V00Q8TRANSISTOR, BC807-25 PNP, G.P., SOT-23 2120-BC807025Q9MOSFET, D15N06V N-CHANNEL, DPAK 2144-D15N06V0Q10TRANSISTOR, PZT2222A NPN, G.P., SOT-223 2120-PZT2222AQ11TRANSISTOR, BC807-25 PNP,SOT23 2120-BC807025
6-2Transmitter Main Board Instruction ManualRefDesig Description Part No.R1RES., SM, 10R0 0805, 1%, 100 ppm 1150-1A10R0FPR2RES., SM, 27k4 0805, 1%, 100 ppm 1150-4A2742FPR3RES., SM, 1k00 0805, 1%, 100 ppm 1150-3A1001FPR4RES., SM, 27k4 0805, 1%, 100 ppm 1150-4A2742FPR5RES., SM, 10R0 0805, 1%, 100 ppm 1150-1A10R0FPR6RES., SM, 27k4 0805, 1%, 100 ppm 1150-4A2742FPR7RES., SM, 1k00 0805, 1%, 100 ppm 1150-3A1001FPR8RES., SM, 27k4 0805, 1%, 100 ppm 1150-4A2742FPR9RES., SM, 221k 0805, 1%, 100 ppm 1150-5A2213FPR10RES., SM, 100k 0805, 1%, 100 ppm 1150-5A1003FPR11-R13RES., SM, 27k4 0805, 1%, 100 ppm 1150-4A2742FPR14-R16RES., SM, 10K0 0805, 1%,100ppm 1150-4A1002FPR17RES., SM, 1k00 0805, 1%, 100 ppm 1150-3A1001FPR18,R19RES., SM, 10K0 0805, 1%,100ppm 1150-4A1002FPR20RES., SM, 68k1 0805, 1%, 100 ppm 1150-4A6812FPR21RES., SM, 10K0 0805, 1%,100ppm 1150-4A1002FPR22RES., SM, 68k1 0805, 1%, 100 ppm 1150-4A6812FPR23RES., SM, 10K0 0805, 1%,100ppm 1150-4A1002FPR24RES., SM, 68k1 0805, 1%, 100 ppm 1150-4A6812FPR25RES., SM, 27k4 0805, 1%, 100 ppm 1150-4A2742FPR26RES., SM, 1k00 0805, 1%, 100 ppm 1150-3A1001FPR28RES., SM, 15K0 0805, 1%, 100ppm 1150-4A1502FPR29RES., SM, 82k5 0805, 1%, 100 ppm 1150-4A8252FPR30RES., SM, 15K0 0805, 1%, 100ppm 1150-4A1502FPR31RES., SM, 221k 0805, 1%, 100ppm 1150-5A2213FPR32RES., SM, 1k00 0805, 1%, 100ppm 1150-3A1001FPR33RES., SM, 68k1 0805, 1%, 100ppm 1150-4A6812FPR34, R35RES., SM, 27k4 0805, 1%, 100ppm 1150-4A2742FPR36RES., SM, 221k 0805, 1%, 100ppm 1150-5A2213FPR37RES., SM, 1k00 0805, 1%, 100ppm 1150-3A1001FPR38RES., SM, 100k 0805, 1%, 100ppm 1150-5A1003FPR39RES., SM, 221k 0805, 1%, 100ppm 1150-5A2213FPR40RES., SM, 10k0 0805, 1%, 100ppm 1150-4A1002FPR41RES., SM, 15k0 0805, 1%, 100ppm 1150-4A1502FPR42RES., OPT METAL FILM, 5%,0.5W OPTIONALR43 - R46RES., SM, 221k 0805, 1%, 100ppm 1150-5A2213FPR47RES., SM, 1k00 0805, 1%, 100ppm 1150-3A1001FPRELAY1 RELAY, 9 Vdc, 2 FORM C, PCB MNT 5310-2C09P005 (Optional)T1TRANSFORMER, SPT-196 1:1 AUDIO XFMR 1280-600P6005U1 IC, MC33172 DUAL OP-AMP, S0-8 2302-33172N08U2 IC, 4081 QUAD 2 INPUT AND, S0-14 2375-40810N14U3, U4 IC, MMAD1108 8 DIODE ARRAY, S0-16 2331-11080N16U6 IC, LP2951, PROG, VOLT REG, SO-8 2305-29510N08U7 IC, MC33172 DUAL OP AMP, SO-8 2302-33172N08U8 IC, MC14536B PROGRAM TIMER, SO-16W 2375-45360W16
Transmitter Main Board Instruction Manual6-36.1.2Transmitter Main Board Mechanical Parts ListDescription Part No. Qty.CABLE, SMB-SMB PLUG, RG316,12cm $7910-WP0WP012 1(Enhanced Synth andCrystal Control)CABLE, SMA-SMB PLUG, RG316,15cm $7910-SP0WP015 1 (Low Power Synth)CABLE,SMA PL-SMB PL,RG316,11cm$7910-SP0WP011 1(Reference Input Opt.Enhanced Synth)CABLE, SMA PLUG-PLUG, RG316, 19 cm$7910-SP0SP0191(Reference Input Opt.Low Power Synth)CONN, TYPE F 48 MALE, RA, PCB MTG 3720-6048M0RA 1CONN/RF, SMA JACK-JACK BULKHEAD5118-J875BJ05 1(Reference Input Opt.Low Power Synth)PANEL, REAR, POS.4, 14HP EXTRSN. 3702-63002101 1FASTENER, QUICK RELEASE 3702-10000120 4GASKET, BeCu,3FINGER,.25",CLIP5630-12023250 2HANDLE, FRONT PANEL, 14HP, GREY 3702-10000614 1HOLE PLUG, 0.25" HOLE, NYLON, BLACK5671-250N062B1LOCKWASHER, M3, SPLIT,A2 STEEL 5814-3M0LK00S 4MIC CONN, 4 PIN MALE, BLACK 5040-114ST0BK 1NAMEPLATE, BLANK, 14HP, ALUM. 3702-10001214 1NUT, M2.5, HEX, 5.0mm, STEEL/Ni 5813-2M5HX50N 2NUT, M2.5, SQUARE, 5.0mm, ZINC 5813-2M5SQ50Z 2NUT PRESS, M2.5, 5.6mm OD, PC MNT 5833-T2M55615 1PANEL/FRNT,W/IDENT:TX-EXTR.VER 3802-61002101 1PANEL, REAR,POS.4,14HP EXTRSN. 3702-63002101 1SCREW, M3 x 8, PAN/PHIL, BLACK 5812-3M0PP08T 4SCREW, M3 x8,OVAL C/S/PHIL,A25812-3M0VP08S 4SCREW, M2.5 X 10, CHEESE/SLOT, A2 5812-2M5CS10S 2SCREW, M2.5 X 12, FLAT/PHIL, Ni 5812-2M5FP12N 2SCREW, M3 X 6, OVAL C/S/PHIL, Ni 5812-3M0VP06N 2SCREW, M3 X 6 PAN/PHIL, A25812-3M0PP06S4SCREW, M5 X 8 FLAT/PHIL, A25812-5M0FP08S4TAB, GROUND, MT-3 SYNTH., BRASS 3702-67800905 2 (Low Power Synth)WIRE, PVC-STRANDED, 22 AWG BLK., 10.5cm 7110-22S07300 1WIRE, PVC-STRANDED, 22 AWG BRN., 10cm 7110-22S07301 1WIRE, PVC-STRANDED, 22 AWG ORG., 9.5cm 7110-22S07303 1WIRE, PVC-STRANDED, 22 AWG RED, 13.5cm 7110-22S07302 1WIRE, PVC-STRANDED, 22 AWG YEL., 9.5cm 7110-22S07304 1WIRE, PVC-STRANDED, 22 AWG BLUE, 10cm 7110-22S07306 1
6-4Transmitter Main Board Instruction Manual6.1.3 MT-3 Front Panel Board Electrical Parts ListRefDesig Description Part No.D1 LED, RED, 5 mm OD, T-1 3/4 2010-503001RDPF1 HEADER, 0.1", RA, 2 ROW X 2 PIN 5010-H202RA9TPF2 HEADER, 0.1", RA, 2 ROW X 2 PIN 5010-H202RA9TSW1 SWITCH, TOG/DPDT, ON-OFF-ON, PCB/STR 5215-T2031V02PCB MT-3 TX FRONT PANEL 4321-409212116.2 MT-3 Audio Processor Parts List (Version 1.6) invisible text6.2.1 MT-3 Audio Processor Electrical Parts List (Version 1.6)RefDesig Description Part No.C3CAP., SM, 4.7µF TANT., 10%, 16V 1055-5B475K16C4CAP., SM, 100nF CER,0805,X7R,50V 1008-5A104K5RC5 - C7CAP., SM, 10nF CER,0805,X7R,50V 1008-4A103K5RC8CAP., SM, 47uF TANT., 20%, 16V 1055-6D476M16C9CAP., 100nF FILM, MMK5, 10%, 63V 1016-5A104K63C10CAP., SM, 2.2µF TANT., 10%, 20V 1055-5B225K20C11CAP., SM, 150pF CER, 0805, C0G 1008-2AI5IJIGC12CAP., 680nF FILM, MMK5, 10%, 50V 1016-5D684K50C13CAP., SM, 10pF CER, 0805, C0G 1008-1A100J1GC14CAP., SM, 100nF CER,0805,X7R,50V 1008-5A104K5RC15CAP., SM, 10nF CER,0805,X7R,50V 1008-4A103K5RC16CAP., 4.7nF FILM, MMK5, 10%, 63V 1016-3A472K63C17CAP., SM, 10nF CER,0805,X7R,50V 1008-4A103K5RC18CAP., SM, 100nF CER,0805,X7R,50V 1008-5A104K5RC19CAP., SM, 150pF CER, 0805, C0G 1008-2AI5IJIGC20CAP., SM, 100nF CER,0805,X7R,50V 1008-5A104K5RC21, C22CAP., 10nF FILM, MMK5, 10%, 63V 1016-4A103K63C23CAP., 22nF FILM, MMK5, 10%, 63V 1016-4A223K63C24CAP., 10nF FILM, MMK5, 10%, 63V 1016-4A103K63C25CAP., 15nF FILM, MMK5, 10%, 63V 1016-4A153K63C26CAP., 1.0nF FILM, MMK5, 10%, 63V 1016-3A102K63C27CAP., 33nF FILM, MMK5, 10%, 63V 1016-4A333K63C28CAP., SM, 100nF CER,0805,X7R,50V 1008-5A104K5RC29, C30CAP., SM, 4.7µF TANT., 10%, 16V 1055-5B475K16C31CAP., SM, 47uF TANT., 20%, 16V 1055-6D476M16C32CAP., 4.7nF FILM, MMK5, 10%, 63V 1016-3A472K63C33CAP., SM, 6.8µF TANT., 20%, 10V 1055-5B685M10C34CAP., SM, 150pF CER, 0805, C0G 1008-2AI5IJIGC35CAP., 330nF FILM, MMK5, 10%, 50V 1016-5B334K50C36CAP., SM, 10pF CER, 0805, C0G 1008-1A100J1GC37CAP., 4.7nF FILM, MMK5, 10%, 63V 1016-3A472K63C38, C39CAP., 330nF FILM, MMK5, 10%, 50V 1016-5B334K50
Transmitter Main Board Instruction Manual6-5RefDesig Description Part No.C40CAP., 1.0µF FILM, MMK5, 10%, 50V 1016-6D105K50C41CAP., 150nF FILM, MMK5, 10%, 63V 1016-5B154K63C42CAP., N/I NOT INSTALLEDC43CAP., 4.7nF FILM, MMK5, 10%, 63V 1016-3A472K63C44CAP., 330nF FILM, MMK5, 10%, 50V 1016-5B334K50C47, C48CAP., 1.0µF FILM, MMK5, 10%, 50V 1016-6D105K50C49CAP., SM, 10nF CER,0805,X7R,50V 1008-4A103K5RC50CAP., SM, 4.7µF TANT., 10%, 16V 1055-5B475K16C51CAP., SM, 100nF CER,0805,X7R,50V 1008-5A104K5RC52CAP., SM, 4.7µF TANT., 10%, 16V 1055-5B475K16C53CAP., SM, 10nF CER,0805,X7R,50V 1008-4A103K5RC54 - C56CAP., SM, 4.7µF TANT., 10%, 16V 1055-5B475K16C57CAP., 1.0µF FILM, MMK5, 10%, 50V 1016-6D105K50C58 CAP., SM, 150pF CER, 0805, C0G 1008-2AI5IJIGFB1 FERRITE BEAD, 43 MIX 1812 PKG 1213-43181200P1 - P4 HEADER, 0.1", R/A, 2 ROW X 2PIN 5010-H202RA9TPCB AUDIO PROCESSOR, MT-3 TX 4321-30911916Q2TRANSISTOR, BC817-25 NPN, SOT-23 2120-BC817025R1RES., SM, 604R 0805, 1%, 100ppm 1150-2A6040FPR2POT., SM/4mm SQ, 5k 11T, SIDE ADJUST 1174-DM2502J0R3RES., SM, 6k81 0805, 1%, 100ppm 1150-3A6811FPR4RES., SM, 221k 0805, 1%, 100ppm 1150-4A2212FPR5, R6RES., SM, 1k00 0805, 1%, 100ppm 1150-3A1001FPR7 RES., SM, 20k0 0805, 1%, 100ppm 1150-4A2002FPR8POT., SM/4mm SQ, 100k 11T, SIDE ADJUST 1174-DM4104J0R9RES., SM, 221k 0805, 1%, 100ppm 1150-4A2212FPR10, R11RES., SM, 49k9 0805, 1%, 100ppm 1150-4A4992FPR12RES., SM, 11k8 0805, 1%, 100ppm 1150-4A1182FPR13RES., SM, 49k9 0805, 1%, 100ppm 1150-4A4992FPR14POT., SM/4mm SQ, 50k 11T, SIDE ADJUST 1174-DM3503JOR15RES., SM, 49k9 0805, 1%, 100ppm 1150-4A4992FPR16RES., SM, 100k 0805, 1%, 100ppm 1150-5A1003FPR17RES., SM, 4k53 0805, 1%, 100ppm 1150-3A45315PR18RES., SM, 681R 0805, 1%, 100ppm 1150-2A6810FPR19THERMISTOR, 10k NTC, 10%, RADL. 1180-4RDG103KR20RES., SM, 2k21 0805, 1%, 100ppm 1150-3A2211FPR21, R22RES., SM, 49k9 0805, 1%, 100ppm 1150-4A4992FPR23, R24RES., SM, 5k11 0805, 1%, 100ppm 1150-3A5111FPR25, R26RES., SM, 3k48 0805, 1%, 100ppm 1150-3A3481FPR27, R28RES., SM, 13k3 0805, 1%, 100ppm 1150-4A1332FPR29POT., SM/4mm SQ, 50k 11T, SIDE ADJUST 1174-DM3503JOR30RES., SM, 681R 0805, 1%, 100ppm 1150-2A6810FPR31POT., SM/4mm SQ, 5k 11T, SIDE ADJUST 1174-DM2502J0R32, R33RES., SM, 1k50 0805, 1%, 100ppm 1150-3A1501FPR34RES., SM, 221k 0805, 1%, 100ppm 1150-5A2213FPR35, R36RES., SM, 1k00 0805, 1%, 100ppm 1150-3A1001FPR37RES., SM, 20k0 0805, 1%, 100ppm 1150-4A2002FP
6-6Transmitter Main Board Instruction ManualR38POT., SM/4mm SQ, 100k 11T, SIDE ADJUST 1174-DM4104J0R39RES., SM, 221k 0805, 1%, 100ppm 1150-5A2213FPR40RES., SM, 1k50 0805, 1%, 100ppm 1150-3A1501FPR41RES., SM, 11k8 0805, 1%, 100ppm 1150-4A1182FPR42POT., SM/4mm SQ, 5k 11T, SIDE ADJUST 1174-DM2502J0R43RES., SM, 11k8 0805, 1%, 100ppm 1150-4A1182FPR44POT., SM/4mm SQ, 5k 11T, SIDE ADJUST 1174-DM2502J0R45RES., SM, 39k2 0805, 1%, 100ppm 1150-4A3922FPR46, R47RES., SM, 4k53 0805, 1%, 100ppm 1150-3A45315PR48POT., SM/4mm SQ, 100k 11T, SIDE ADJUST 1174-DM4104J0R49RES., SM, 27k4 0805, 1%, 100ppm 1150-4A2742FPR50RES., SM, 221k 0805, 1%, 100ppm 1150-5A2213FPR51RES., SM, 1k50 0805, 1%, 100ppm 1150-3A1501FPR52RES., SM, 11k8 0805, 1%, 100ppm 1150-4A1182FPR61RES., SM, 221k 0805, 1%, 100ppm 1150-5A2213FPR71RES., SM, 63k4 0805, 1%, 100ppm 1150-4A6342FPR72RES., SM, 39k2 0805, 1%, 100ppm 1150-4A3922FPR73RES., SM, 221k 0805, 1%, 100ppm 1150-5A2213FPR74RES., SM, 27k4 0805, 1%, 100ppm 1150-4A2742FPR75POT., SM/4mm SQ, 50k 11T, SIDE ADJUST 1174-DM3503JOR76 Not Installed1Not InstalledR77RES., SM, 20k0 0805, 1%, 100ppm 1150-4A2002FPR78, R79RES., SM, 49k9 0805, 1%, 100ppm 1150-4A4992FPR80RES., SM, 68k1 0805, 1%, 100ppm 1150-4A6812FPR81THERMISTOR, 10k NTC, 10%, RADL. 1180-4RDG103KR82, R83RES., SM, 27k4 0805, 1%, 100ppm 1150-4A2742FPR84, R85RES., SM, 39k2 0805, 1%, 100ppm 1150-4A3922FPR86, R87RES., SM, 22k1 0805, 1%, 100ppm 1150-4A2212FPR88, R89RES., SM, 100k 0805, 1%, 100ppm 1150-5A1003FPR90RES., SM, 10K0 0805, 1%, 100ppm 1150-4A1002FPU1, U2 IC, SL6270 VOGAD, S0-8 2328-62700N08U3, U4 IC, MC33172 DUAL OP AMP, SO-8 2302-33172N08U5 IC, MC33174 QUAD OP AMP 2304-33174N14U8 IC, MC33172 DUAL OP AMP, SO-8 2302-33172N08U9, U10 IC, TC4S66F BILATERAL SWITCH, SMV 2375-4S66FSMV6.3 MT-3 Audio Processor Parts List (Version 1.8) invisible text6.3.1 MT-3 Audio Processor Electrical Parts List (Version 1.8)RefDesig Description Part No.C1CAP., 220nF FILM, MMK5,10%,50V 1016-5A224K50C2CAP., SM, 2.2uF TANT., 20%, 20V 1055-5B225K20C3CAP., SM, 4.7µF TANT., 10%, 16V 1055-5B475K16C4CAP., SM, 100nF CER,0805,X7R,50V 1008-5A104K5RC5 CAP., SM, 10nF CER,0805,X7R,50V 1008-4A103K5RC6CAP., 10nF FILM, MMK5, 10%, 63V 1016-4A103K63C7CAP., SM, 2.2uF TANT., 20%, 20V 1055-5B225K20C8CAP., SM, 10uF TANT., 20%, 16V 1055-6C106M16C9CAP., SM, 4.7uF TANT., 10%, 16V 1055-5B475K16C10CAP., SM, 10nF CER,0805,X7R,50V 1008-4A103K5R
Transmitter Main Board Instruction Manual6-7RefDesig Description Part No.C11CAP., SM, 100nF CER., 0805, X7R, 50V 1008-5A104K5RC12CAP., SM, 1.0nF CER., 0805, X7R, 50V 1008-3A102K5RC15, C17CAP., SM, 10nF CER,0805,X7R,50V 1008-4A103K5RC18, C20CAP., SM, 100nF CER,0805,X7R,50V 1008-5A104K5RC21, C22CAP., 10nF FILM, MMK5, 10%, 63V 1016-4A103K63C23CAP., 22nF FILM, MMK5, 10%, 63V 1016-4A223K63C24CAP., 10nF FILM, MMK5, 10%, 63V 1016-4A103K63C25CAP., 15nF FILM, MMK5, 10%, 63V 1016-4A153K63C26CAP., 1.0nF FILM, MMK5, 10%, 63V 1016-3A102K63C27CAP., 33nF FILM, MMK5, 10%, 63V 1016-4A333K63C30CAP., SM, 4.7µF TANT., 10%, 16V 1055-5B475K16C35CAP., 330nF FILM, MMK5, 10%, 50V 1016-5B334K50C36CAP., SM, 10pF CER, 0805, C0G 1008-1A100J1GC37CAP., 4.7nF FILM, MMK5, 10%, 63V 1016-3A472K63C38, C39CAP., 330nF FILM, MMK5, 10%, 50V 1016-5B334K50C41CAP., 150nF FILM, MMK5, 10%, 63V 1016-5B154K63C43CAP., 4.7nF FILM, MMK5, 10%, 63V 1016-3A472K63C44CAP., 330nF FILM, MMK5, 10%, 50V 1016-5B334K50C45CAP., SM, 4.7uF TANT., 10%, 16V 1055-5B475K16C46CAP., 100nF FILM, MMK5, 10%,63V 1016-5A104K63C47, C48CAP., 1.0µF FILM, MMK5, 10%, 50V 1016-6D105K50C49CAP., SM, 10nF CER,0805,X7R,50V 1008-4A103K5RC50CAP., SM, 4.7µF TANT., 10%, 16V 1055-5B475K16C51CAP., SM, 100nF CER,0805,X7R,50V 1008-5A104K5RC52CAP., SM, 4.7µF TANT., 10%, 16V 1055-5B475K16C53CAP., SM, 10nF CER,0805,X7R,50V 1008-4A103K5RC54 - C55CAP., SM, 4.7µF TANT., 10%, 16V 1055-5B475K16FB1 FERRITE BEAD, 43 MIX 1812 PKG 1213-43181200P1 - P4 HEADER, 0.1", R/A, 2 ROW X 2PIN 5010-H202RA9TPCB AUDIO PROCESSOR, MT-3 TX 4321-30911918Q2 TRANSISTOR, BC817-25 NPN, SOT-23 2120-BC817025R1RES., SM, 604R 0805, 1%, 100ppm 1150-2A6040FPR2POT., SM/4mm SQ, 5k 11T, SIDE ADJUST 1174-DM2502J0R3RES., SM, 5K11 0805, 1%,100ppm 1150-3A5111FPR4RES., SM, 3K01 0805, 1%,100ppm 1150-3A3001FPR5RES., SM, 8K25 0805, 1%,100ppm 1150-3A8251FPR6RES., SM, N/I 0805, 1%,100ppm 1150-TBAR7RES., SM, 37K4 0805, 1%,100ppm 1150-4A3742FPR8 - R11RES., SM, 49K9 0805, 1%,100ppm 1150-4A4992FPR12RES., SM, N/I 0805, 1%,100ppm 1150-TBAR13RES., SM, 49k9 0805, 1%, 100ppm 1150-4A4992FPR14POT., SM/4mm SQ, 50k 11T, SIDE ADJUST 1174-DM3503JOR15RES., SM, 49k9 0805, 1%, 100ppm 1150-4A4992FPR16RES., SM, 100k 0805, 1%, 100ppm 1150-5A1003FPR17RES., SM, 4k53 0805, 1%, 100ppm 1150-3A45315PR18RES., SM, 1K0 0805, 1%,100ppm 1150-3A1001FPR19TEMPSISTOR, 1K2 PTC, 10%,AXIAL 1181-3AGD122K
6-8Transmitter Main Board Instruction ManualRefDesig Description Part No.R20RES., SM, 2k21 0805, 1%, 100ppm 1150-3A2211FPR21, R22RES., SM, 49k9 0805, 1%, 100ppm 1150-4A4992FPR23, R24RES., SM, 5k11 0805, 1%, 100ppm 1150-3A5111FPR25, R26RES., SM, 3k48 0805, 1%, 100ppm 1150-3A3481FPR27, R28RES., SM, 13k3 0805, 1%, 100ppm 1150-4A1332FPR29POT., SM/4mm SQ, 50k 11T, SIDE ADJUST 1174-DM3503JOR30RES., SM, 681R 0805, 1%, 100ppm 1150-2A6810FPR31POT., SM/4mm SQ, 5k 11T, SIDE ADJUST 1174-DM2502J0R32RES., SM, 470K0 0805, 1%,100ppm 1150-5A4703FPR33RES., SM, 1k50 0805, 1%, 100ppm 1150-3A1501FPR34RES., SM, 75K0 0805, 1%,100ppm 1150-4A7502FPR35RES., SM, 68K1 0805, 1%,100ppm 1150-4A6812FPR36POT., SM, 50K0 4mm SQ, 50K, 11T,SIDE 1174-DM3503J0R37RES., SM, 49K9 0805, 1%,100ppm 1150-4A4992FPR38POT., SM/4mm SQ, 100k 11T, SIDE ADJUST 1174-DM4104J0R39RES., SM, 221k 0805, 1%, 100ppm 1150-5A2213FPR40RES., SM, 1k50 0805, 1%, 100ppm 1150-3A1501FPR41 RES., SM, 49K9 0805, 1%,100ppm 1150-4A4992FPR42POT., SM/4mm SQ, 5k 11T, SIDE ADJUST 1174-DM2502J0R43RES., SM, 11k8 0805, 1%, 100ppm 1150-4A1182FPR44RES., SM, 0R0 ZERO OHM JUMPER,0805 1150-0A0R0000R45RES., SM, N/I 0805, 1%,100ppm 1150-TBAR46, R47RES., SM, 4k53 0805, 1%, 100ppm 1150-3A45315PR48POT., SM/4mm SQ, 100k 11T, SIDE ADJUST 1174-DM4104J0R49RES., SM, 27k4 0805, 1%, 100ppm 1150-4A2742FPR50RES., SM, 221k 0805, 1%, 100ppm 1150-5A2213FPR51RES., SM, 1k50 0805, 1%, 100ppm 1150-3A1501FPR52RES., SM, 11k8 0805, 1%, 100ppm 1150-4A1182FPR53RES., SM, N/I 0805, 1%,100ppm 1150-TBAR54RES., SM, 274R0 0805, 1%,100ppm 1150-2A2740FPR55RES., SM, 49K9 0805, 1%,100ppm 1150-4A4992FPR71RES., SM, 63k4 0805, 1%, 100ppm 1150-4A6342FPR72 RES., SM, 0R0 ZERO OHM JUMPER,0805 1150-0A0R0000R73RES., SM, 221k 0805, 1%, 100ppm 1150-5A2213FPR74RES., SM, 27k4 0805, 1%, 100ppm 1150-4A2742FPR75POT., SM/4mm SQ, 50k 11T, SIDE ADJUST 1174-DM3503JOR76RES., SM, 0R0 ZERO OHM JUMPER,0805 1150-0A0R0000R77RES., SM, 20k0 0805, 1%, 100ppm 1150-4A2002FPR79RES., SM, 49k9 0805, 1%, 100ppm 1150-4A4992FPR80RES., SM, 68k1 0805, 1%, 100ppm 1150-4A6812FPR81THERMISTOR, 10k NTC, 10%, RADL. 1180-4RDG103KR84, R85RES., SM, 39k2 0805, 1%, 100ppm 1150-4A3922FPR86, R87RES., SM, 22k1 0805, 1%, 100ppm 1150-4A2212FPR88, R89RES., SM, 100k 0805, 1%, 100ppm 1150-5A1003FPR90RES., SM, 10K0 0805, 1%, 100ppm 1150-4A1002FPU1 IC, SA578D COMPANDOR, SO-16L 2327-SA571D00U3, U4 IC, MC33172 DUAL OP AMP, SO-8 2302-33172N08U5 IC, MC33174 QUAD OP AMP 2304-33174N14U8 IC, MC33172 DUAL OP AMP, SO-8 2302-33172N08U9, U10 IC, TC4S66F BILATERAL SWITCH, SMV 2375-4S66FSMV
Transmitter Main Board Instruction Manual7-17REVISION HISTORYISSUE DATE REVISION1 August 97 First Issue.Sept. 97 Included PCB version 1.4 Component Layout and Schematic diagrams.2 Dec 97 Main PCB version now 1.7 (ECO 515).• BCD Switches changed from Surface Mount Part to Through Hole Part.• Audio Amplifier was removed because this option was never used.• Added Timer Out Timer circuitry to Main Tx Board.• TOT PCB no longer installed on Audio Processor.ForA21-TX3-00 TX MAIN/FP, MT-3, STANDARDA21-TX3-30 TX MAIN/FP, MT-3, + REF. INPUTTUBING, TFE-260C,14AWG T/W,CLR 7610-260C14TW18mm Long and Consummable Buss Wire 16 Awg 40mm LongNOW NOT INSTALLEDDec 97 ForA21-TX3-01 TX MAIN/FP, MT-3, WITH FUSEA21-TX3-02 TX MAIN/FP, MT-3, + DC RELAYA21-TX3-03 TX MAIN/FP, MT-3, + FUSE,RELAY• Removed Jumpers J1, J5, J8, J10, J11.• Added Jumpers J22 - J29, J31 - J35.• Added Test Points TP28 - TP34Dec 97 Front Panel Board version now 1.2 (ECO 521).Modified MT-3 Tx Front Panel Board (FPB) to support all options on theNew Transmitter Main Board . Also, the Front Panel Board is now easier toconfigure if new microphones (other than Daniels microphones) are used.The new FPB can be used on the old TX-3 main - all options will function.However, the old version of FPB will NOT work with the new version TX-3Main PCB (unless you hard wire one of the microphone pins into the mainPCB (13.8V line.)Added J2 SM Jumper. This jumper now selects Rx Audio or 13.8V to Pin4 of the Microphone. This capability used to be selected by a jumper on theMain Tx Board. For Normal Opertion J2 'x' position must be installedOptions - This is for future use (not used now). Added 2x4 header landpattern to Tx Front Panel Board. A 2x4 header can be installed to makeother microphones compatible with Daniels Transmitters.3 Nov 98MT-3 FM Audio Processor now version 1.8The MT-3 FM Audio Processor was re-designed because the IC, SL62070,VOGAD, SO-8 is no longer available from the supplier. Also, the newdesign improves the flat and 300Hz Pre-emphasis audio responses.Included PCB version 1.8 Component Layout, Schematic diagram, Parts Listand Section 2.4, 3.9 and 3.10.
7-2Transmitter Main Board Instruction ManualISSUE DATE REVISION3 Nov 98Updated the DE logo and added the statuary trademark statement to the titlepage. Updated the Low Frequency Modulation section 3.11 to reflect the inhouse document A0361-06.
MT-3 RADIO SYSTEMSAudio ProcessorInstruction ManualFor AM/FM Transmitters Covers the followingV 2.2 and V2.3 of the FM Audio Processor Boardused in the VT-3/xxx, UT-3/xxx, VT-3Hxxx andA22-VAP130 AM Audio Processor Version 04Copyright © 2000 Daniels Electronics Ltd. All rights reserved. No part of this publication may be reproduced, storedin a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording orotherwise, without the prior written consent of Daniels Electronics Ltd.DE™ is a registered trademark of Daniels Electronic Ltd. registered in the U.S. Patent and Trademark Office.Issue: 2 Previous Issue: 1Issue Date: November 2000 Previous Issue Date: October 2000 Daniels Electronics Ltd.Printing Date: January 2001 Victoria, BC.Part No.: IM20-AP3 PRINTED IN CANADA
ii Audio Processor Board Instruction ManualNOTE:The user's authority to operate this equipment could be revoked through anychanges or modifications not expressly approved by Daniels Electronics Ltd.The design of this equipment is subject to change due to continuousdevelopment. This equipment may incorporate minor changes in detail from theinformation contained in this manual.
Audio Processor Board Instruction Manual iiiTABLE OF CONTENTS Page1 FM AUDIO PROCESSOR .............................................................................................1-11.1 Introduction ..........................................................................................................1-11.2 Block Diagram (FM Audio Processor).................................................................1-31.3 FM Audio Processor Board Pin Connections.......................................................1-41.4 Factory Configuration...........................................................................................1-41.5 Turn-on Time........................................................................................................1-51.6 Low Frequency Modulation..................................................................................1-51.7 Transmitter Standby Modes..................................................................................1-52 SIGNALS.........................................................................................................................2-12.1 FM Audio Processor Outputs...............................................................................2-12.2 Modulation Output...............................................................................................2-12.3 Low Frequency / Direct Mod. Output...................................................................2-12.4 Microphone Input.................................................................................................2-12.5 Balanced Input......................................................................................................2-12.6 Auxiliary Input......................................................................................................2-22.7 Subtone Inputs......................................................................................................2-22.8 Direct Modulation Input.......................................................................................2-23 THEORY OF OPERATION............................................................................................3-14 ALIGNMENT..................................................................................................................4-14.1 Standard Deviation Adjustment.............................................................................4-14.2 Balanced Input Setup............................................................................................4-14.3 Microphone Input Setup.......................................................................................4-14.4 Subtone Input Setup .............................................................................................4-24.5 Balanced Input Frequency Response....................................................................4-25 TROUBLESHOOTING - TEST EQUIPMENT NEEDED ............................................5-15.1 Balanced Input Test ..............................................................................................5-15.2 Frequency Response Test.....................................................................................5-15.3 Subtone Input Test................................................................................................5-25.4 Audio benchmarks................................................................................................5-26 TEMPERATURE COMPENSATION ............................................................................6-17 ILLUSTRATIONS, TABLES AND SCHEMATIC DIAGRAMS ..................................7-17.1 Special Jumper Configuration Table.....................................................................7-17.2 FM Audio Processor Component Layout.............................................................7-27.3 FM Audio Processor Schematic Diagram.............................................................7-38 FM AUDIO PROCESSOR PARTS LIST.......................................................................8-19 AM AUDIO PROCESSOR.............................................................................................9-59.1 Introduction ..........................................................................................................9-59.2 Performance Specifications...................................................................................9-59.3 Audio Specifications.............................................................................................9-6
iv Audio Processor Board Instruction Manual9.4 Audio Circuits.......................................................................................................9-69.5 Power Requirements.............................................................................................9-69.6 Transmitter Standby Modes..................................................................................9-69.7 Audio Circuitry.....................................................................................................9-79.8 AM Audio Processor Factory Configuration........................................................9-89.9 AM Audio Processor Alignment...........................................................................9-89.10 AM Audio Processor Electrical Parts List...........................................................9-119.11 AM Audio Processor Component Layout...........................................................9-149.12 AM Audio Processor Schematic Diagram..........................................................9-1510 REVISION HISTORY...................................................................................................10-1LISTS OF FIGURESFigure 1 Block Diagram - Audio Processor............................................................... 1-3Figure 2 Pin Connection Diagram.............................................................................. 1-4Figure 3 Microphone and Balanced Input Circuitry................................................... 3-1Figure 4 Limiter and Splatter Filter ............................................................................ 3-2Figure 5 Bypassing Compression.............................................................................. 3-3Figure 6 TX Audio Control Circuitry......................................................................... 3-4LIST OF TABLESTable 1 Bandwidth Definition................................................................................... 1-1Table 2 Factory Configuration.................................................................................. 1-4Table 3 Turn On Time.............................................................................................. 1-5Table 4 Mode Condition Table................................................................................. 1-6Table 5 Standby Mode Selection Table.................................................................... 1-6Table 6 MT-3 Audio Processor Total Current Consumption.................................... 1-6Table 7 Operating Current........................................................................................ 5-1Table 8 Waveform Levels......................................................................................... 5-2
Audio Processor Board Instruction Manual 1-11 FM AUDIO PROCESSOR1.1 IntroductionThe MT-3 FM Audio Processor is a versatile circuit board that can provide several types of audioprocessing for voice or data transmission. The following terms are defined:Table 1 Bandwidth DefinitionTerm Channel Spacing Rated System DeviationWideband 25 kHz or 30 kHz±5.00 kHzNarrowband 12.5 kHz or 15 kHz±2.50 kHzLTR™ is a trademark of E.F. Johnson Co.Features include:• Automatic level control using a compression amplifier with a 25 dB dynamic range• Limiter and Splatter filter that removes noise and harmonics• Selectable pre-emphasis or flat audio response• Temperature compensated audio output• Ability to transmit data and voice switched by a single control line.• Backwards compatible with Daniels Electronics MT-2 series transmitters.• Direct modulation input for LTR™, DCS, paging and other digital modulations thatrequire very low frequency modulation to the synthesizer or crystal oscillator module.• Separate voice and direct modulation outputs, each individually configurable.• Multiple jumpers that can be configured to allow maximum flexibility in routing signalsfrom inputs to outputs, and disabling selected circuits to reduce operating current.• Dual microphone and balanced audio compression circuits.• On-board multi-configurable temperature compensation to correct for changes intransmitter deviation over temperature caused by changing characteristics of synthesizersand oscillators.• A single chip 10th Order Linear Phase Lowpass splatter filter for increased cutoffattenuation responses needed in today’s narrow band environment.• The ability to switch between narrow and wideband through a single control line whichcan be externally controlled. This can be useful when configured as a multi-channeltransmitter which uses mixed wide and narrowband frequencies.• The ability to easily reconfigure fixed operations from narrow to wideband throughsimple jumper settings
1-2 Audio Processor Board Instruction ManualA continuous +9.5 VDC supply and a switched +8.0 VDC supply are required to power themodule which is normally supplied by the Main Transmitter Board.The 6 audio inputs on the FM Audio Processor are:• DYNAMIC MICROPHONE INPUT• 600 OHM BALANCED INPUT• subtone inputs• auxiliary input.• direct modulation input for data signals.The Audio Processor's balanced input pins are isolated by a transformer (T1) on the TransmitterMain Board. Two audio outputs from the MT-3 Audio Processor are routed to the Synthesizer orCrystal Controlled Oscillator Modules.
Audio Processor Board Instruction Manual 1-31.2 Block Diagram (FM Audio Processor)SplatterFilterPre-emphasisSelectPre-emphasisSelectCompressionAmpCompressionAmpLimiter/SummingAmplifierBuffer+4VRegulator+4VPre-emphasisSelectAuxillaryBufferAmpTx AudioControlAudioSwitch 1AudioSwitch 2Regular ModulationBufferSubtone13 KHzDirect ModulationOffset BufferTCVCXOModulation BufferOffsetTCVCXODC LevelAdjustReg ModOutLow FreqOutInverting AmpCouplingSelect2 PortPolaritySelectJU35JU34Tx AudioControlWide/NarrowBand SelectData/VoiceSelect3dBNarrowBandPadJU14JU26JU27JU30JU43JU28JU2549K949K9P1-3R2U1AU1BP1-1R31ToneDigitalInputP2-1BalancedInputMicrophoneInputU3AU3BU2AU2CU2DP2-2R48R42U5U6Q1DirectModulationInputP4-3U2BR87P4-4P4-2P3-1U3CU3DP4-1JU4Subtone2JU13R36JU12JU11Figure 1 Block Diagram - Audio Processor
1-4 Audio Processor Board Instruction Manual1.3 FM Audio Processor Board Pin ConnectionsFigure 2 Pin Connection Diagram1.4 Factory ConfigurationThe MT-3 FM Audio Processor is factory configured as follows:Table 2 Factory ConfigurationParameter SpecificationMaximum Deviation±2.5 kHz (Narrowband),±5.0 kHz (Wideband).Microphone Input 1 kHz signal at -10 dBm gives ±60% rated system deviation1 kHz signal compression set at ±84% rated system deviationAudio Balanced Inputpre-emphasis response1 kHz tone at -8 dBm gives ±60% rated system deviation1 kHz signal compression set at ±84% rated system deviationSubtone Input 1 100 Hz tone at -18 dBm gives ±500 Hz (Wideband)±350 Hz (Narrowband) deviationAll other audio inputs DisabledPCB1234123412341234P1P2P4P3Balanced InputEND VIEWMic Input Subtone Input 1+8V+9.5VLow Frequency Direct Mod OutputVoiceAnd Subtone Output-8 dBm-10 dBm-18 dBmSurface Mount Side 0 dBm
Audio Processor Board Instruction Manual 1-51.5 Turn-on TimeThis measurement is made with the standard factory settings with a 1 kHz tone applied to thebalanced input. The turn-on time is the time it takes the FM Audio Processor to output a stableaudio signal to P3-1 from the time its power (+8.0 VDC) is switched on. The turn-on time can be virtually eliminated by configuring the FM Audio Processor forcontinuous audio standby (see section 1.7 Transmitter Standby Modes). The drawback is thatmore current is used to enable the audio circuits to minimize the turn on time. The bulk of the delayis in the powering of the compression amplifier. For applications that do not use the compressionamplifier, the fast turn on times apply as in the case of data transmission, or audio with nocompression.Table 3 Turn On TimeMode Turn on time Audio ProcessorStandby CurrentFast turn on – higher current Approx 1mS 15 mACurrent save – slower response Approx 150mS 450uA1.6 Low Frequency ModulationThe transmitter has an additional option to address low frequency user modulation requirements. Aphase modulated bandwidth from 0 (dc) to 100 Hz (PLL loop filter bandwidth) allows specializedapplications such as paging or trunking where a separate low frequency digital/analog modulationchannel is required. Low Frequency Modulation allows external access to the low frequencymodulation capabilities of the synthesizer module. The DIRECT MODULATION inputs on the J1control connector of the M-3 motherboard will be used (B20 for TX A, and A20 forTX B). Refer to “Data Modulation and Signalling Applications Manual”, P/N AM20-DMS forspecific FM Audio Processor configuration methods.1.7 Transmitter Standby ModesThe MT-3 series transmitters has 8 different standby modes that trade-off standby currentconsumption for start-up speed. Three of these jumpers are on the Transmitter Main Board :• J6 which always turns on the '+9.5 VDC Switched' supply,• J7 which selects the power source for the MT-3 FM Audio Processor• J18 which selects the enable line for the OS-3 or OS-3H Synthesizer, or OC-3 CrystalControlled Oscillator module.Additionally, there is a jumper on the FM Audio Processor Board:• JU36 which determines the power hookup for the dual compression amplifiers
1-6 Audio Processor Board Instruction ManualNotes:If FM Audio Processor JU36 is not installed, both microphone and balanced audio compressionamplifiers will be disabled. This means that the front panel microphone jack will be disabled forlocal microphone operations. When in this condition, balanced audio is routed around thecompression circuitry via JU11 (installed) with JU1 and JU2 removed.Table 4 Mode Condition TableMODE#J6J7J18Synthesizer/OscState AudioProcessor State(8V Switched)Audio ProcessorCompressionJU361aOUTY YPTT Switched PTT Switched Switched +8.0V(X)1bOUTY YPTT Switched PTT Switched Continuous 9.5V(Y)1cOUTY YPTT Switched PTT SwitchedDisabled (Not Installed)2a INYX Always enabled PTT Switched Switched +8.0V (X)2b INYX Always enabled PTT Switched Continuous 9.5V (Y)2c INYX Always enabled PTT SwitchedDisabled (Not Installed)3 IN XYPTT Switched Always enabled Doesn’t matter4 IN X X Always enabled Always enabled Doesn’t matterTable 5 Standby Mode Selection TableMODE#Total Xmtr StandbyCurrent Startup Time1a 13 mA 6 mA150 mS150 mS1b 22 mA 15 mA 10 mS 10 mS1c 13 mA 6 mA 10 mS 10 mS2a 165 mA 25 mA150 mS150 mS2b 174 mA 34 mA 10 mS 10 mS2c 165 mA 25 mA 10 mS 10 mS3 27 mA 20 mA 10 mS 10 mS4 175 mA 34 mA 10 mS 10 mSTable 6 FM Audio Processor Total Current Consumption.Compression configuration Audio ProcessorCurrent Drawkeyed / unkeyedCompression enabled (JU36X) 15 mA/0.45 mACompression and microphone disabled(JU36 Open)9.2 mA/0.45 mACompression enabled (JU36Y) 15 mA /9.2 mA
Audio Processor Board Instruction Manual 2-12 SIGNALSThe MT-3 FM Audio Processor has six audio inputs, two audio outputs and one audio controlinput. Five of the audio inputs are used primarily for voice and tone signals. The sixth, the Directmodulation input, is used primarily for data signals. The audio control input is used to switch audiooutputs so the transmitter can transmit voice or data.2.1 FM Audio Processor OutputsBoth the audio outputs, Modulation Output (P3-1) and Low Frequency / Direct Modulation Output(P4-2), are gated by audio switches U5 and U6 respectively which are controlled by the TransmitAudio Control Input (P4-4). The audio switches can be operated complimentary to each other sothere can ever only be one source modulating the transmitter. In standard configuration, theModulation Output port is used so switch U5 is always on.2.2 Modulation OutputThe Modulation Output port is the output port used by all voice input signals. The voice inputs arepassed to U1A and U1B, a dual programmable compandor which is configured as an automaticlevel control amplifier. Op-amp U3A provides the limiting action for the FM Audio Processor.After the audio signals have been combined limited and buffered, they are filtered by 10th orderLinear Phase Lowpass Filter (U4). The output signal from the filter is then level adjusted by thedeviation control pot, R29, before buffer amplifier U3D. In special applications, jumper JU6 can be disabled and JU7 enabled, this allows the transmitter tobe modulated directly from the auxiliary input. This should not be done without external filteringsince jumper JU7 bypasses the limiting and filter circuits. 2.3 Low Frequency / Direct Mod. OutputThe Low Frequency / Direct Modulation Output port has two functions depending on whether thetransmitter is synthesized or crystal controlled. In a synthesized transmitter, this port is used tomodulate the synthesizer reference frequency. The frequency response of this port is typically DCto 300 Hz. In a crystal controlled transmitter, this port can be used by the Direct Modulation Inputto directly modulate the crystal control oscillator module. The frequency response of this port isessentially flat from DC to 5 kHz with no limiting or filtering.2.4 Microphone InputThe microphone input has an automatically level controlled (ALC) preamplifier U1 whose inputlevel is controlled by R2. The microphone input level control (R2) can accommodate a -25 dBm to0 dBm input signal. The microphone input is limited and filtered and is output at the standardmodulation output port. The microphone input can have a standard 6dB/octave pre-emphasisresponse or a flat-audio response, jumper JU1 at 'y' and 'x' position respectively.2.5 Balanced InputThe 600 ohm balanced input uses the ALC preamplifier U1B, with input level control pot (R31).The balanced input level control can accommodate a -25 dBm to 0 dBm input. (install JU17 when
2-2 Audio Processor Board Instruction Manualusing the lower input levels) Like the microphone input, the balance input is limited and filtered andis output at the standard modulation output port.If no compression is required (i.e.: customer is providing their own), JU11 can be enabledproviding a path through R48 (Auxiliary Input Level Control) to amplifier U2C where pre-emphasis or flat audio can then be selected from its output.2.6 Auxiliary InputThe auxiliary input is a special input and does not have an ALC. This input can be configured for apre-emphasis response (enable JU9Y) or a flat-audio response (enable JU9X). The level for thisinput is set by R48. The auxiliary output is normally summed with the voice signals by op-ampU3A, limited, then filtered and output at the standard modulation output port. When jumper JU6 isdisabled and jumper JU7 is enabled, the auxiliary input can be used to directly modulate thetransmitter. Care should be taken when directly modulating the transmitter with the auxiliary inputbecause the MT-3 transmitters use direct FM modulation and there is no filtering or limiting actionprovided by the auxiliary input. The input level to the auxiliary input should be -18 dBm and canbe driven by one of three inputs:• the balanced input – JU11• the tone/digital input – JU12 X or Y enabled• the direct modulation input – through JU28When the 600 ohm balanced input is connected to the auxiliary input, the balanced input levelcontrol can be used to adjust the level for the auxiliary input.2.7 Subtone InputsThere are two subtone inputs available on the FM Audio Processor. Both subtone inputs can beindividually configured to be output from the standard Modulation Output port or to be output fromthe Low Frequency / Direct Modulation Output. In standard configuration, Subtone 1 is summedwith the voice signals to be output from the standard Modulation Output port while Subtone 2 isused for DCS. Both subtone inputs have an input level control.2.8 Direct Modulation InputThe Direct Modulation Input is an extremely versatile input. This port is designed to be used fordata signals. Depending on the application, the signal can be amplified, AC or DC coupled andoutput to the Modulation Output or the Low Frequency / Direct Modulation Output port. Pleaseconsult the factory for specific jumper settings for your application.
Audio Processor Board Instruction Manual 3-13 THEORY OF OPERATIONVoice band audio normally enters the Balanced Input at P1-1 and P1-2 while microphone audioenters at P1-3. Potentiometer R31 sets the Balanced compression level of U1B while R2 sets themicrophone compression level of U1A. Each amplifier has a dynamic range of 25 dB. JumperJU17 is only installed when using very low input levels (-20 to –25 dBm) and allows better tuningrange for R31. The output of the compression amplifiers are normally set for Pre-emphasis(6dB/Octave) but can be set for flat audio if required by jumpers JU1 and JU2.BALANCEDINPUT L EVE LCONTROLFLAT AUDIOPRE-EMPHASISMICROPHONE INPUTL EVE L CONTROLBALANCED INPUTXY+9.5V CONTINUOUSNOT INSTALLED FOR DIGITAL MOD.A UXILIARY INPUT LEV E L CONTROLX YMICROPHONE AGC PREAMPB ALA NCED AGC PREAMPXYB ALA NCEDCOMPRESSIONCONTROLFLAT AUDIOPRE-EMPHASISMICROPHONCOMPRESSICONTROLXYXYXYFLAT AUDIOPRE-EMPHASISXYTWO PORT POLARITYSUBTONE 1 INPUTCONTROL LEVEL3P12P11P14P13P33P21P24P2+9.5V CONTINUOUSC1010nF4K53R46C510nF123R25K0FB1+8.0V SWD+8.0V SWD123JU547uFC13321100K0R48680nFC74.7uFC8TP3SELR57N/I (22nF)C32Rect InVar GRect CapOutputInv InR3THD Trim 1514161012119U1SA571Da680nFC42TP124.7uFC26VccRect InVar GRect CapOutputInv InR3THD Trim GND2317568134SA571DU1b2P2JU169108U2MC33174cR74N/IR73N/I131214U2MC33174d4.0VTP6R4311K8C392.2uF3215K0R42C351.0uFC11.0uFC91.0uFC301.0uFR8210K0C373.3nFR4916k2C1410nF4.0VR7616k2C161.0uFJU33C511.0uF123JU12R3915K4R41137KR5920K0R6215K4R51M00C251.0uFR6018K2R6118K2R82K21R949K9R418K2R618K2330nFC36C153.3nF R72K21R1049K9330nFC19C21.0uFR5110K0213JU1213JU2JU11TP11TP4JU10R52100KR65100KC383.3nFR112K21R4049K9213JU14123R315K0R30604RTP2215RR1R64100KR560R0C41.0uF231JU36JU17123JU91235K0R633215K0R38MICROPHONE INPUTSUBTONE INPUT 1TONE/DIGITAL I/PFigure 3 Microphone and Balanced Input Circuitry
3-2 Audio Processor Board Instruction ManualThe microphone and balanced audio signals are summed and limited by U3A. Op-amp U3Bprovides audio level temperature compensation (for synthesizer and crystal oscillator sensitivityvariations). Due to the many different characteristics of the models of synthesizer and crystaloscillators, the components are marked “SELect” and are identified later in this document (section6.)XYXYXY10 P OLE LOWPASS FILTERLIMITERT EMPERATUR ECOMPE N S ATION213JU22R16100KC1710nFC4910nF+8.0V SWDJU6C504.7uFJU7SELR23SELR24SELR25SELR26SELR28SELR17SELR18SELR20 In+ In- Gnd V-Vout V+ Rx Div/Clk 12348765U4LTC1569-6R6622K1R6730K9R683K48R692K00+8.0V SWDP11P12P9 P10234111U3MC33174a657U3MC33174b12R19SEL1 2SELR2712C211.0uF12C61.0uF4.0V4.0V+8.0V SWDTP5R8410K0R8510K0TP101 2150pFC43TP14123JU24123JU3Figure 4 Limiter and Splatter FilterThe audio then is filtered by a 10th Order Linear Phase Lowpass splatter filter. This filter improveson the previous Butterworth filter design for data linearity and increased cutoff attenuationresponses mandated in today’s narrow band environment.The filter output level is set by R29, the deviation control. From this point, the signal goes to U5 abilateral audio switch. U5 is normally configured to be always on. The output of U5 goes to thefinal buffer amplifier U3D. By installing JU23 which lowers the audio level one half, a widebandtransmitter can be quickly re-configured into a narrowband transmitter in the field. The output ofU3D has many selectable capacitors which are chosen depending on the synthesizer or crystaloscillator module that is connected to this main modulation port.
Audio Processor Board Instruction Manual 3-3If no compression circuitry is required, the balanced input signals can be routed around thecompression circuitry by jumper JU11. Op-amp U2C then would provide thebuffering/amplification. It’s output would normally have pre-emphasis installed but could bechanged to flat if required through jumper JU9. The audio signal is then normally routed to U3A,the summing amplifier/limiter and processed as mentioned in the previous paragraphs. Notehowever, if compression is bypassed, the THD may be higher due to the reduced dynamic inputrange causing more clipping.If compression is bypassed and disabled by the removal of FM Audio Processor jumper JU36which removes power from the compression IC, there will be 9mA of key down current saved. Thedisadvantage is that the microphone circuit will be disabled due to the removal of the commonpower to the compression IC.BALANCEDINPUT LE VELCONTRO LBALANCED INPUTXYAUXILIARY INPUT LEV EL CONTRO LBALANCED AGC PREAMPBALANCEDCOMPRESSIONCONTROLFLAT AUDIOPRE-EMPHASISXYXYFLAT AUDIOPRE-EMPHASI SXYTWO PORT POLARITY2P11P1C1010nF123JU5321100K0R48680nFC74.7uFC8TP3SELR57N/I (22nF)C32VccRect InVar GRect CapOutputInv InR3THD Trim GND2317568134SA571DU1b9108U2MC33174cR73N/I131214U2MC33174d4.0VTP6C91.0uFC301.0uFR8210K0R4916k2C1410nF4.0VR7616k2C161.0uFJU33R6215K4R51M00R418K2R618K2C153.3nF R72K21R1049K9330nFC19C21.0uFR5110K0213JU2JU11TP4JU10R52100KR65100KC383.3nFR112K21R4049K9213JU14123R315K0R30604RR64100KJU17123JU93215K0R38+9.5V CONTIN UOUSXYM+8.0V SWDR560R0231JU36Figure 5 Bypassing CompressionA second way to route around audio compression if data is not being used is to use the directmodulation port P4-3 and go through JU28 to R48 and Op-amp U2C.Subaudible tones enter at P2-2 where their level is controlled by R42. A single jumper JU16enables the audio path to U3A, the summing amplifier/limiter.
3-4 Audio Processor Board Instruction ManualVoltage regulator U2A provides regulated +4.0V to all Op-amp stages. Optional potentiometer R14can be installed (and JU15 removed) for special applications which need a voltage different than+4.0V.Data normally enters at P4-3, the Direct Modulation Input. From there, it has many routes that itcan go. JU43 allows direct or on-board capacitive coupling. Op-amp U2B can be configured as abuffer with a DC offset to handle input data that has a positive DC voltage offset. The data signalscan be sent to gain buffers U2C and U2D through potentiometer R48. Jumper JU14 is normallyinstalled so that the output from U2D provides the correct data polarity when using two portmodulation.XYDEVIATIONCONTROLLOW FREQUENCY / DIRECT MODULATION OUTPUTXYXYXYXYVOICE + SUBAUDIBLEDCS, LTRXYTCXO DCLEVELA DJUSTTCXO MOD ULATIONLEVEL A DJUST1P32P4JU37213JU22+9.5V CONTINUOUS4.7uFC454.7uFC28123R2950K0R5549K9R7510K0EBCQ1BC817-25+8.0V SWDJU6JU31R440R0R45N/IC121.0nFR54SEL123R3650K0JU32SELR32JU2947uFC34R12N/IR7949K9JU7 In+ In- Gnd V-Vout V+ Rx Div/Clk 12348765U4LTC1569-6R6622K1R6730K9R683K48R692K00+8.0V SWDP11P12P9 P109108U3MC33174c0R0R720R0R5812C211.0uF12C61.0uFR3749K9R3449K94.0VC2410nF+8.0V SWD4.0VJU23TP7TP8TP9SELR81JU4110nFC41R8610K0321R8350K0R53N/IR8027K4+8.0V SWD123JU35R7810K0231JU39123JU34JU38C23330pFC44330pF131214U3MC33174dR35SELJU8100nFC271.0uFC331.0uFC401.0uFC471.0uFC46123JU25R2249K9R2149K91 2345U5TC4S66F1 2345U6TC4S66F4.0VR5049K9R8849K9JU264.0VC55100nFJU4433nFC56+9.5V CONTINUOUSR7720K0JU1821 3JU19231JU211 2JU45R89100RTx Audio ControlFigure 6 TX Audio Control CircuitryA single TX Audio control line P4-4 has 2 functions. It can be configured to switch U3D inputsbetween data and voice. Alternately, it can be configured to remotely switch between wideband andnarrowband applications by switching between the regular audio path and one carrying half theaudio level as determined by resistive divider comprised of R22 and R21.Due to the complex nature of data modulation methods, the actual configurations and values ofSELected components for LTR, DCS, Paging are contained in a separate applications manual“AM20-DMS”.
Audio Processor Board Instruction Manual 4-14 ALIGNMENTVerify the standard factory settings for the MT-3 FM Audio Processor as given in section 1 beforebeginning the standard deviation adjustment procedure. If the transmitter's operating frequency ischanged beyond the factory recommended bandwidth or if the synthesizer is changed, the FMAudio Processor should be realigned to optimize the transmitter's performance. The schematicdiagram for the FM Audio Processor is shown in section 7-2 of this manual.The settings tolerance is +/- 0.1 kHz.4.1 Standard Deviation AdjustmentSet up the Communications Analyzer :-Audio filter to LOW PASS 15 or 20 kHz-To monitor transmit frequency and audio deviation level.4.2 Balanced Input Setup1 Connect audio generator output to the BALANCED INPUT (TransmitterMain Board edge connector pins B18, Z18).2 Preset R31 (BALANCED INPUT LEVEL CONTROL)R38 (COMPRESSION CONTROL)R29 (DEVIATION CONTROL) all maximum clockwise3 Set audio generator to 2.4 kHz at 0 dBm.4 Adjust R29 for ±4.8 kHz (Wideband) or ±2.4 kHz (Narrowband).5 Set audio generator to 1 kHz at 0dBm6 Set R38 for ±4.2 kHz (Wideband) or ±2.1 kHz (Narrowband).7 Repeat steps c) to f) (slight interaction)8 Set audio generator to 1 kHz at –8 dBm9 Adjust R31 for ±3.0 kHz (Wideband) or ±1.5 kHz (Narrowband).10 Set audio generator to 1 kHz at –18 dBm11 Ensure deviation is at ±1.0 kHz (Wideband) or ±0.5 kHz (Narrowband).12 Set audio generator to 1 kHz at –8 dBm. Set Communications Analyzer AudioFilter to BANDPASS 300-3400 Hz. Activate distortion analyzer. Confirm thatthe distortion is within specification.4.3 Microphone Input Setup1. Set R2 fully clockwise2. Apply a 1 kHz tone at 0 dBm to the microphone audio input (PIN 1 on the frontpanel connector. Pin 2 is ground). Set R63 (MICROPHONECOMPRESSION for ±4.2 kHz (Wideband) or ±2.1 kHz (Narrowband).3. Reduce the audio generator level to –10 dBm. Adjust R2 (MICROPHONEINPUT LEVEL) for ±3.0 kHz (Wideband) or ±1.5 kHz (Narrowband).
4-2 Audio Processor Board Instruction Manual4.4 Subtone Input Setup• Apply a 100 Hz tone at -18 dBm to the subtone 1 input .• Adjust R42 (SUBTONE INPUT 1) to produce:• ±500 Hz(Wideband) or ±350 Hz(Narrowband) deviation.• Remove the signal.4.5 Balanced Input Frequency Response• Apply a 1 kHz tone at –18 dBm to the BALANCED INPUT (Transmitter MainBoard edge connector pins B18, Z18).• Record deviation and use this level as the 0 dB reference.• Sweep frequency from 100 Hz to 5 kHz.• The audio response should be within +/- 1dB from 300 Hz to 2500 Hz.
Audio Processor Board Instruction Manual 5-15 TROUBLESHOOTING - TEST EQUIPMENT NEEDED1 Variable Power supply/supplies to supply 9.6V and 8.0V at the same time.2 Digital Voltmeter to measure RMS AC Volts, DC Volts, DC Current and resistance.3 20 MHz Oscilloscope, single channel.4 Audio Signal Generator (600 Ohm Output Impedance) capable of frrequencies from67 Hz to 5000 Hz.Power Supply• Connect a regulated power supply with +9.5V as follows:Positive to P2-4Negative to P1-4 (Ground)• Connect a regulated power supply with +8.0V as follows:Positive to P2-3Negative to P1-4 (Ground)• Measure total current from both power line inputs:Table 7 Operating CurrentVoltage InputCurrent (mA)8.0V 15.79.5V 0.475.1 Balanced Input TestConnect an Audio Generator set for a 2.4 kHz tone @ 0 dBm (775 mV RMS) output to theBalanced Input (P1-1 and P1-2). Refer to Table 8 Waveform Levels for measurement points,levels and waveforms that should be present.Change Audio Generator settings for a 1 kHz tone @ -8 dBm (309 mV RMS) output. Refer toTable 8 Waveform Levels for levels and waveforms that should be present.5.2 Frequency Response TestReduce Audio Generator level to –18 dBm (98 mV RMS). Step frequency to 500, 1000, 2000 and3000 Hz. Ensure that the results conform to the 6dB/octave +/- 1 dB from 300 Hz to 2500 Hzreferenced to 1000 Hz. Measurements are made at JU8 with respect to ground.
5-2 Audio Processor Board Instruction Manual5.3 Subtone Input TestChange Audio Generator frequency to 100 Hz and maintain level at –18 dBm (98 mV RMS).Connect output to Subtone Input 1 (P2-2) and ground (P1-4). Refer to Table 8 WaveformLevels, for levels and waveforms that should be present.5.4 Audio benchmarksSet the audio generator to 2.4 kHz @ 0 dBm at the Balanced Input. Compare the waveform levelswith those listed in table below.Repeat for the various audio frequencies and levels and compare with the levels in the table below.Table 8 Waveform LevelsLimiting TestStd Level Mic Test SubtoneMeasured@2.4kHz@0dBm1 kHz @-8dBm1 kHz @-10 dBm100 Hz @-18 dBmTP3 5.2V P-P 3.8V P-P N/A N/ATP12 N/A N/A 3.8V P-P N/ATP10 6.5V P-P 4.9V P-P 4.8V P-P 1.1V P-PTP5 2.4V P-P 1.3V P-P 1.9V P-P 0.4V P-PJU6 5.5V P-P 1.7V P-P 1.8V P-P 0.4V P-PTP8 1.5V 0.9V P-P 0.9V P-P 0.2V P-P
Audio Processor Board Instruction Manual 6-16 TEMPERATURE COMPENSATIONThe FM Audio Processor includes temperature compensation circuitry to maintain constanttransmitter audio deviation with a fixed level input signal. It is capable of not only compensating fortemperature related level variations within the FM Audio Processor (typically –0.3 to –0.5 dB at–40C) but can also compensate for changes caused by the synthesizer or crystal oscillator modulethat is not equipped with its own temperature compensation.The factory specification is as follows:WidebandWhen a 2.4 kHz tone is applied at a level of –8dBm to the balanced input of the transmitter, thetransmitter deviation shall be ±4.8 kHz at room temperature and can vary from ±4.5 kHz to±5.0 kHz from -40ºC to +60ºC.NarrowbandWhen a 2.4 kHz tone is applied at a level of –8 dBm to the balanced input of the transmitter, thetransmitter deviation shall be ±2.4 kHz at room temperature and can vary from ±2.25 kHz to±2.5 kHz from -40ºC to +60ºC.Since the specifications of the components used in the synthesizer or oscillator may change overtime, changes to the temperature compensation circuit may be necessary even for the same type ofequipment.Contact the factory for more information on values used.
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ELECTRONICS LTD.DANIELS TM Audio Processor Board Instruction Manual 7-17 ILLUSTRATIONS, TABLES AND SCHEMATIC DIAGRAMS7.1 Special Jumper Configuration TableWB VHF/CTCSSWB UHF/CTCSSNB VHF/CTCSSNB UHF/CTCSSTCXO Op AmpR35Not InstalledO OhmsNot Installed0 OhmsR32Not Installed51K OhmsNot Installed51K OhmsR81Not Installed51K OhmsNot Installed51K OhmsR54Not Installed100 OhmsNot Installed100 OhmsAuxiliary Op AmpR57Not Installed Not Installed Not Installed Not InstalledWB VHFWB UHFNB VHFNB UHFDefault& CTCSS & CTCSS & CTCSS & CTCSSJumperTypePositionDescription1XYYMicrophone Pre-Emphasis/Flat AudioY Y Y Y2XYYBalanced Audio Pre-Emphasis/Flat AudioY Y Y Y3XYFactoryCustom Temperature Compensation NetworkContact Factory Contact Factory Contact Factory Contact Factory4XYOpenSubtone 25XYOpenAuxiliary Input routing6SingleInSplatter Filter OutputInstalled Installed Installed Installed7SingleOpenAuxiliary Input routing8SingleOpenDirect Coupled final OP Amp O/P9XYOpenAuxiliary Output for Pre-EmphasisNot Installed Not Installed Not Installed Not Installed10SingleOpen4V AC GroundNot Installed Not Installed Not Installed Not Installed11SingleOpenBalanced Input Compression Bypass12XYOpenTone/Digital Input audio routing13SingleOpenDirect Modulation Audio Routing14XYYTwo Port Polarity SelectY default OK Y default OK Y default OK Y default OK15XY XY4V Regulator adjust (Bypassed)X and Y both X and Y both X and Y both X and Y both16SingleInSubaudible EnableInstalled Installed Installed Installed17SingleOpenBalanced Input Adjust Range extend18SingleOpenAudio Gate disable19XYYVoltage Select (+9.5V/8V) Audio gatesY Y Y Y20XYOpenDirect Modulation Audio Routing21XYX Audio Gate SwitchX X X X 22XYYSplatter Filter Enable/BypassY Y Y Y23SingleOpenNarrow Band gain reductionNot Installed Not InstalledInstalled Installed24XYFactoryCustom Temperature Compensation NetworkContact Factory Contact Factory Contact Factory Contact Factory25XYOpenWide/Narrow Band switched selectNot InstalledXNot InstalledX26SingleOpenAuxiliary output routingNot Installed Not Installed Not Installed Not Installed27XYOpenDirect Modulation Input Offset Output28SingleOpenDirect Modulation Input RoutingNot Installed Not Installed Not Installed Not Installed29SingleOpenCoupling Capacitor selectionNot Installed Not Installed Not Installed Not Installed30N/A N/AThis skipped designator has been deleted31SingleOpenSplatter Filter output routingNot InstalledInstalledNot InstalledInstalled32SingleOpenCoupling Capacitor selectionNot Installed Not Installed Not Installed Not Installed33SingleOpenDirect Input Coupling - Auxiliary amplifierNot Installed Not Installed Not Installed Not Installed34XYOpenAudio Routing35XYOpenAudio RoutingNot InstalledXNot InstalledX36XYXAGC Preamp Power selectX X X X37SingleOpenDirect Couple (TCXO)Not InstalledNot installed38SingleInLow pass enableInstalled Installed Installed Installed39XYXLow Frequency amplfier bias selectX X X X40N/A N/AThis skipped designator has been deleted41SingleOpenNarrow Band gain reductionNot Installed Not InstalledInstalled Installed42XYOpenDirect Modulation input bias select43SingleOpenDirect Modulation Direct/Cap couple44SingleOpenCoupling Capacitor selection45SingleInCoupling Capacitor selection (Default)Installed Installed Installed Installed
VICTORIA B.C .DANIELS ELECTRONICSDRAWN BY: SHANE ADWG REV DATE: OCT 27/00 DATE: MAR 27/00DWG No: 9119ASxTITLE: AM TRANSMITTER DTITLE: AM TRANSMITTER SURFACE MOUNT LAYOUT TITLE: FM TX AUDIO PROCESSOR BOARD OUTLINEELECTRONICSPCB 43-911923BOTTOM SIDETOP SIDETITLE: FM TX AUDIO PROCESSOR SM LAYOUTDWG No: 9119AS1- JUMPERS INSTALLEDTITLE: FM TX AUDIO PROCESSOR SM LAYOUT / JUMPERSJU41 JU4JU17 JU36JU2X YXYJU14Y XJU20X YJU27X YJU5YXJU1X YJU15XYJU12XYJU9XYXJU39YXJU35YXJU34YXJU21XYXJU25YXJU19XYJU22YXJU6JU8JU32JU31JU18JU37JU38JU29JU7JU23JU28JU13JU10JU16JU33JU11JU42X YJU43YXJU44JU45JU26DWG No: 9119AS2BJU3YY JU24C84.7µFP1C264.7µFR73N/IR618k2R418k2R560R0C510nFR10R0C41µFR51M0R64100kR30604R0R74N/IR72k21P2C1010nFR112k21R1049k9R82k21R57SELR4049k9 R52100kR26SELR25SELR4916k2R1510k0C2010nFC36330nFR1310k0R20SELR28SELR81SELP4C18100nFC1710nFR17SELR18SELR3449k9C23330pFR16100k0C4110nFR45N/IR440R00R53N/IR32SELR54SELC121.0nFR5049k9C2410nFC454.7µFR35SELR12N/IR7949k9R2249k9R2149k9R5549k9C61µFC211µFP3R580R00R720R00R3749k9R7720k0 R7510k0Q1BC817-25R683k48R692k00R6622k1R6730k9C34.7µFR635K0U4LTC1569-6R425k0R25K0 R315K0R385K0R48100K0 R14N/I (5K0) R2950k0U3MC33174R3650k0FB1U5TC4S66FU1SA571DC1347uFC2947uFC3147uFC3447uFU2MC33174U6TC4S66FTITLE: FM TX AUDIO PROCESSOR SM DESIGNATIONSR8350k0C484.7µFC504.7µFC42680nFC7680nFR23SEL R24SELR8510k0R7810k0C4910nFR8610k0C27100nFR949k9 R65100kR715k11R464k53C1410nFC43150pF R8410k0R8210k0C19330nFR4311k8R47100k R3100kR33100kR5920kR41137kR5110k0R6215k4R7616k2C11µFC301µFC91µFC21µFC251µFC351µFC392.2µFR3915k4R6018k2R6118k2R8027k4C284.7µFC511µFC161.0µFC461.0µFC471.0µFC331.0µFC2210nFR7010k0C44330pFR8750K0C401.0µFR8849k9C52150pFC534.7µFC54100nFC55100nF C5633nF1234123412341234DWG No: 9119AS3BR89100R4123412341234123TITLE: FM TX AUDIO PROCESSOR TH LAYOUTDWG No: 9119AT1DWG No: 9119AT3C383.3nFP2 P3P4R27SELC373.3nFC32N/I(22nF)P1TITLE: FM TX AUDIO PROCESSOR TH DESIGNATIONSP5 P8P6P7C153.3nFR19SELDWG No: 9119AT2Wire Jumper for UHF versions only7-2 FM Audio Processor Board Instruction ManualP10P11TP3TP11TP4TP12TP7TP9TP6TP1TP10TP2TP8P9 P5P8P6 7.2 FM Audio Processor Component Layout V2.3P12P7TP13TP5TP14MICROPHONEINPUT LEVELCONTROLBALANCEDINPUT LEVELCONTROLBALANCEDCOMPRESSIONCONTROLMICROPHONECOMPRESSIONCONTROLAUXILIARYINPUT LEVELCONTROL4.0VVOLTAGEADJUSTSUBTONE 1 INPUT LEVELCONTROLDEVIATIONCONTROL TCXODC LEVELADJUSTTCXOMODULATIONLEVEL ADJUSTINPUTDC LEVELADJUST12A B C D E F G H I J34K L M N O P Q R S TMT3APM1FR1 J1R2  K3R3 H1R4 J1R5 I2R6 J2R7 H2R8 E2R9 E2R10 H2R11 G2R12 A1R13 F1R14 O3R15 F1R16 E1R17 D2R18 E2R19 Q4R20 E1R21 B2R22 A2R23 C1R24 C1R25 D2R76 I1R77 C2R78 D1R79 C2R80 A1R81 C1R82 G2R83 S3R84 E1R85 C1R86 D1R87 M4R88 E2R89 D1C51 F2C52 G1C53 N4C54 G2C55 A2C56 B2FB1 K4JU1  F1JU2 H2JU3 C1JU4  H1JU5 G1JU6 A2JU7  A1JU8 A2JU9 F2JU10 F1JU11 I1JU12 F1JU13 F1JU14 G2JU15 F1JU16 G1JU17 I2JU18 B2JU19 B1JU20 H1JU21 C2JU22 A1JU23 D1JU24 E2JU25 B1JU26 E1JU27 H1JU28 D2JU29 B2JU30 N/AJU31 B1JU32 A2JU33 G2JU34 D2JU35 D2JU36 J2JU37 D2JU38 C1JU39 D1JU40 N/AJU41 C1JU42 H2JU43 D2JU44 B2JU45 B2P1 L4P2 O4P3 S4P4 R4P5 Q3P6 T4P7 Q4P8 T3P9 A1P10 A1P11 B1P12 A1Q1 C2R26 C2R27 P3R28 E1R29 S3R30 J2R31 M3R32 C1R33 H1R34 D1R35 A1R36 T3R37 C2R38 N3R39 I1R40 F2R41 I1R42 R3R43 G1R44 D1R45 D1R46 F2R47 G1R48 O3R49 G1R50 B1R51 I1R52 F2R53 D1R54 C1R55 B2R56 J1R57 G2R58 B1R59 I1R60 H1R61 H1R62 J1R63 N3R64 I2R65 G2R66 A2R67 A2R68 A2R69 A1R70 H2R71 G1R72 B1R73 I2R74 I2R75 C2C26 H1C27 B2C28 S4C29 Q3C30 I1C31 R4C32 M4C33 S4C34 S3C35 I1C36 E2C37 P4C38 O4C39 G1C40 T4C41 D1C42 M4C43 E1C44 E1C45 B1C46 T4C47 T4C48 P3C49 D2C50 P3COMPONENT LOCATION TABLEDES LOC DES LOC DES LOC DES LOC DES LOC DES LOC DES LOC DES LOC DES LOCC1 I1C2 J1C3 O3C4 J1C5 J2C6 A2C7 L4C8 J2C9 I1C10 G2C11 N/AC12 C1C13 K4C14 F1C15 L4C16 M4C17 E1C18 F2C19 H2C20 G2C21 A1C22 H2C23 E1C24  C1C25 H1DES LOCU1 L3U2 N3U3 R3U4 T3U5 R3U6 S3DES LOCTP1  F1TP2 B1TP3 I2TP4 J1TP5 C1TP6 G2TP7 D2TP8 D1TP9 C1TP10 D1TP11 I1TP12 G1TP13 H2TP14 C1DES LOCELECTRONICS LTD.DANIELS TM
AABBCCDDEEFFGGHHIIJJKKLLMMNNOOPP1 12 23 34 45 56 67 78 89 91 10 0R1 C2R2  C3R3 C8R4 F4R5 D5R6 E4R7 G4R8 G3R9 G3R10 G5R11 H6R12 N8R13 H1R14 H2R15 H2R16 J5R17 J4R18 J4R19 L5R20 K5R21 L7R22 L7R23 L5R24 L5R25 L5R76 E5R77 L7R78 N8R79 K7R80 N8R81 O8R82 F6R83 N8R84 I4R85 K4R86 N6R87 D9R88 N7R89 O7C51 B6C52 D8C53 I2C54 J2C55 L8C56 O7FB1  B3JU1  G3JU2 G4JU3 L5JU4  B8JU5  E6JU6  P5JU7  K6JU8 O6JU9 I6JU10 D6JU11 C5JU12 B5JU13 B8JU14 H6JU15 H2JU16 H7JU17 C5JU18 L7JU19 J6JU20 C8JU21 K7JU22 N5JU23 N7JU24 K5JU25 L7JU26 I8JU27 D8JU28 B8JU29 O6JU30 N/AJU31 L6JU32 O7JU33 F6JU34 M7JU35 N8JU36 D2JU37 P8JU38 O7JU39 N8JU40 N/AJU41 O8JU42 D8JU43 B9JU44 O7JU45 O7P1-1 A4P1-2 A5P1-3 A3P1-4 A3P2-1 A6P2-2 A7P2-3 A4P2-4 A4P3-1 P6P3-2 J9P3-3 A4P3-4 A9P4-4 A7P4-1 A8P4-3 A9P4-2 P8P9 N5P10 N5P11 M5P12 M6Q1 J7R26 L5R27 K4R28 K5R29 K6R30 B5R31 C5R32 O8R33 C8R34 N7R35 N7R36 N7R37 N7R38 F4R39 D3R40 H7R41 D3R42 E7R43 H7R44 O8R45 O9R46 B6R47 D8R48 E6R49 E6R50 M7R51 C4R52 G6R53 O8R54 P8R55 J7R56 D2R57 F6R58 K7R59 D3R60 F3R61 E3R62 D4R63 F3R64 D5R65 G5R66 O5R67 O5R68 M5R69 M5R70 C9R71 I1R72 K6R73 E5R74 E3R75 K8C26 F3C27 O7C28 M7C29 B9C30 D4C31 B9C32 F6C33 O6C34 P8C35 D3C36 G3C37 G3C38 H6C39 H7C40 O6C41 O8C42 E3C43 J5C44 N7C45 M6C46 O6C47 O7C48 G1C49 K4C50 J4COMPONENT LOCATION TABLEDES LOC DES LOC DES LOC DES LOC DES LOC DES LOC DES LOC DES LOC DES LOCC1 D3C2 E4C3 I1C4 D2C5 C3C6 O5C7 E5C8 F4C9 D4C10 F7C11 N/AC12 O7C13 D2C14 E6C15 G4C16 F6C17 I4C18 G1C19 G5C20 H2C21 M5C22 C9C23 N7C24  N6C25 E2DES LOCU1a D2U1b D4U2a I2U2b D8U2c F6U2d G6U3a J4U3b L4U3c O8U3d N6U4 N5U5 M7U6 M8DES LOCTP1 I2TP2 E7TP3 F4TP4 C4TP5 L4TP6 G6TP7 J7TP8 O6TP9 O7TP10 J5TP11 D3TP12 F2TP13 D8TP14 K5DES LOCDANIELSELECTRONICS LTD.TMVICTORIA B.C.DEDANIELS ELECTRONICS 7-37.3 FM Audio Processor Schematic Diagram V2.3DWG No: MT3APM2F WIRE JUMPERFOR UHF ONLYDWG REV DATE: 03 OCT 2000BOARD REV: VERSION 2.3BOARD No: 43-911923R89FM Audio Processor Board Instruction ManualJU40C11 JU30TCXO MODULATIONLEVEL ADJUSTTCXO DCLEVELADJUSTINPUT DC LEVELADJUSTSUBTONE 1 INPUTCONTROL LEVELJU45C56TP13HIGHEST REFERENCE DESIGNATORSYXYXYX---------------TWO PORT POLARITYYXPRE-EMPHASISFLAT AUDIODATE: 19 APR 20004.0V VOLTAGEADJUSTYXYXYXMICROPHONECOMPRESSIONCONTROLPRE-EMPHASISFLAT AUDIOBALANCEDCOMPRESSIONCONTROLYXDWN BY: LARRY JOEYXDCS, LTRVOICE + SUBAUDIBLETEMPERATURECOMPENSATIONLIMITERYXYXYX----------U6Q1high = wideband selectlow = narrow band selectP12FB1UNUSED REFERENCE DESIGNATORS-----10 P OLE LOWPASS FILTERYXYXTx Audio ControlOPTIONALYXBALANCED AGC PREAMPMICROPHONE AGC PREAMPTITLE: MT-3 TX AUDIO PROCESSOR SCHEMATIC DIAGRAMYX-----AUXILIARY INPUT LEVEL CONTROLNOT INSTALLED FOR DIGITAL MOD.+9.5V CONTINUOUSYXYXY XYXLOW FREQUENCY / DIRECT MODULATION OUTPUThigh = voicelow = dataDEVIATIONCONTROLYXDIRECTMODULATIONINPUTAPRVD:BALANCED INPUTMICROPHONE INPUTLEVEL CONTROLPRE-EMPHASISFLAT AUDIOBALANCEDINPUT LEVELCONTROL3P12P11P14P13P33P21P21P43P41P32P44P4JU374P2+9.5V CONTINUOUS4.7uFC3213JU22C1010nF+9.5V CONTINUOUS4.7uFC454.7uFC284K53R46R16100KC1710nF C4910nF123R2950K0R5549K9R7510K0EBCQ1BC817-25C510nF123R25K0FB1TP1+8.0V SWD+8.0V SWD+8.0V SWD+8.0V SWD+8.0V SWDJU6JU314P3 2P3R440R0R45N/IC484.7uFC504.7uFC18100nFC121.0nFR54SEL123R3650K0123JU5JU3247uFC13321100K0R48680nFC7 4.7uFC8TP3SELR3247uFC31 47uFC29SELR57N/I (22nF)C32JU2947uFC34R12N/IRect InVar GRect CapOutputInv InR3THD Trim 1514161012119U1SA571Da680nFC42TP124.7uFC26VccRect InVar GRect CapOutputInv InR3THD Trim GND2317568134SA571DU1b123JU27+9.5V CONTINUOUS2P2JU16R7949K9JU7SELR23N/IR24SELR25N/IR26SELR28SELR17SELR18SELR20 In+ In- Gnd V-Vout V+ Rx Div/Clk 12348765U4LTC1569-6R6622K1 R6730K9R683K48R692K00+8.0V SWDP11P12P9 P10231114U2MC33174a910 8U2MC33174c234111U3MC33174a657U3MC33174b910 8U3MC33174c1 2R19SEL1 2SELR27R74N/IR73N/I0R0R720R0R5812C211.0uF12C61.0uFR3749K9R3449K9+8.0V SWDC2010nF1312 14U2MC33174d4.0VTO ALL 4.0V SUPPLY POINTS4.0V4.0VC2410nF10K0R1310K0R154.0V+8.0V SWD4.0VJU23TP5TP6TP7TP8TP9R4311K8C392.2uFSELR81 JU4110nFC413215K0R42C351.0uFC11.0uFC91.0uFC301.0uFR3100KR33100KR47100KR8210K0C373.3nFR8410K0 R8510K0R8610K0321R8350K0R53N/IR8027K4+8.0V SWD123JU35R7810K0R4916k2C1410nF4.0VR7616k2C161.0uFJU33R715K11TP10123JU20C511.0uF123JU12213JU15R3915K4R41137KR5920K0R6215K4R51M00C251.0uFR6018K2R6118K2R82K21R949K9R418K2R618K2330nFC36C153.3nF R72K21R1049K9330nFC19C21.0uFR5110K0213JU1213JU2231JU39JU111 2150pFC43123JU34JU38321R14N/I (5K0)TP11TP4JU10R52100KR65100KC383.3nFR112K21R4049K9213JU14123R315K0R30604RTP2C23330pFC44330pF1312 14U3MC33174dC2210nF R7010K0R35SELJU8100nFC271.0uFC331.0uFC401.0uFC471.0uFC46123JU42657U2MC33174bMT-3 TX TIME-OUT-TIMERJ3J2 J4J1P7P6P5P8123R8750K0+8.0V SWDTP13123JU25R2249K9R2149K91 2345U5TC4S66F1 2345U6TC4S66F4.0VR5049K9R8849K9JU43C52150pF123JU4 JU26JU28JU134.0V215RR1R64100K4.7uFC53 C54100nFC55100nFR560R0TP14JU4433nFC564.0VC41.0uF+9.5V CONTINUOUSR7720K0JU18231JU36JU17123JU921 3JU19231JU21 1 2JU45123JU24123JU31235K0R633215K0R38R89100RMICROPHONE INPUTSUBTONE INPUT 2SUBTONE INPUT 1TONE/DIGITAL I/P
ELECTRONICS LTD.DANIELS TM 7-4 Audio Processor Board Instruction ManualThis Page Intentionally Left Blank
Audio Processor Board Instruction Manual 8-18 FM AUDIO PROCESSOR PARTS LISTRefDesig Description Part No.C1 CAP., SM, 1.0uF CER, 1206, X7R, 16V 1008-6B105Z4RC2 CAP., SM, 1.0uF CER, 1206, X7R, 16V 1008-6B105Z4RC3 CAP., SM, 4.7uF TANT., 10%, 16V 1055-5B475K16C4 CAP., SM, 1.0uF CER, 1206, X7R, 16V 1008-6B105Z4RC5 CAP., SM, 10nF CER,0805,X7R,50V 1008-4A103K5RC6 CAP., SM, 1.0uF TANT., 20%, 16V 1055-5A105M16C7 CAP., SM, 680nF CER, 1206, X7R, 16V 1008-5B684M4RC8 CAP., SM, 4.7uF TANT., 10%, 16V 1055-5B475K16C9 CAP., SM, 1.0uF CER, 1206, X7R, 16V 1008-6B105Z4RC10 CAP., SM, 10nF CER,0805,X7R,50V 1008-4A103K5RC12 CAP., SM, 1.0nF CER., 0805, X7R, 50V 1008-3A102K5RC13 CAP., SM, 47uF TANT., 20%, 16V 1055-6D476M16C14 CAP., SM, 10nF CER,0805,X7R,50V 1008-4A103K5RC15 CAP., 3.3nF FILM, MMK5, 10%, 63V 1016-3A332K63C16 CAP., SM, 1.0uF CER, 1206, X7R, 16V 1008-6B105Z4RC17 CAP., SM, 10nF CER,0805,X7R,50V 1008-4A103K5RC18 CAP., SM, 100nF CER., 0805, X7R, 1008-5A104K5RC19 CAP., SM, 330nF CER, 0805, X7R, 16V 1008-5A334M4RC20 CAP., SM, 10nF CER,0805,X7R,50V 1008-4A103K5RC21 CAP., SM, 1.0uF TANT., 20%, 16V 1055-5A105M16C22 CAP., SM, 10nF CER,0805,X7R,50V 1008-4A103K5RC23 CAP., SM, 330pF CER., 0805, X7R, 50V 1008-2A331J1GC24 CAP., SM, 10nF CER,0805,X7R,50V 1008-4A103K5RC25 CAP., SM, 1.0uF CER, 1206, X7R, 16V 1008-6B105Z4RC26 CAP., SM, 4.7uF TANT., 10%, 16V 1055-5B475K16C27 CAP., SM, 100nF CER., 0805, X7R, 1008-5A104K5RC28 CAP., SM, 4.7uF TANT., 10%, 16V 1055-5B475K16C29 CAP., SM, 47uF TANT., 20%, 16V 1055-6D476M16C30 CAP., SM, 1.0uF CER, 1206, X7R, 16V 1008-6B105Z4RC31 CAP., SM, 47uF TANT., 20%, 16V 1055-6D476M16C32 CAP., N/I (22nF) FILM, MMK5, 10%,63V 1016-4A223K63C33 CAP., SM, 1.0uF CER, 1206, X7R, 16V 1008-6B105Z4RC34 CAP., SM, 47uF TANT., 20%, 16V 1055-6D476M16C35 CAP., SM, 1.0uF CER, 1206, X7R, 16V 1008-6B105Z4RC36 CAP., SM, 330nF CER, 0805, X7R, 16V 1008-5A334M4RC37 CAP., 3.3nF FILM, MMK5, 10%, 63V 1016-3A332K63C38 CAP., 3.3nF FILM, MMK5, 10%, 63V 1016-3A332K63C39 CAP., SM, 2.2uF TANT., 10%, 20V 1055-5B225K20C40 CAP., SM, 1.0uF CER, 1206, X7R, 16V 1008-6B105Z4RC41 CAP., SM, 10nF CER,0805,X7R,50V 1008-4A103K5RC42 CAP., SM, 680nF CER, 1206, X7R, 16V 1008-5B684M4RC43 CAP., SM, 150pF CER., 0805,C0G 1008-2A151J1GC44 CAP., SM, 330pF CER., 0805, X7R, 50V 1008-2A331J1GC45 CAP., SM, 4.7uF TANT., 10%, 16V 1055-5B475K16C46 CAP., SM, 1.0uF CER, 1206, X7R, 16V 1008-6B105Z4RC47 CAP., SM, 1.0uF CER, 1206, X7R, 16V 1008-6B105Z4RC48 CAP., SM, 4.7uF TANT., 10%, 16V 1055-5B475K16C49 CAP., SM, 10nF CER,0805,X7R,50V 1008-4A103K5RC50 CAP., SM, 4.7uF TANT., 10%, 16V 1055-5B475K16C51 CAP., SM, 1.0uF CER, 1206, X7R, 16V 1008-6B105Z4RC52 CAP., SM, 150pF CER., 0805,C0G 1008-2A151J1GC53 CAP., SM, 4.7uF TANT., 10%, 16V 1055-5B475K16C54 CAP., SM, 100nF CER., 0805, X7R, 1008-5A104K5RC55 CAP., SM, 100nF CER., 0805, X7R, 1008-5A104K5R
8-2 RefDesig Description Part No.C56 CAP., SM, 33nF CER, 0805, X7R, 50V 1008-4A333K5RFB1 FERRITE BEAD, SM, 43MIX,.18x.12 1213-43181200P1 HEADER 0.1", R/A, 2 ROW X 2PIN 5010-H202RA9TP2 HEADER 0.1", R/A, 2 ROW X 2PIN 5010-H202RA9TP3 HEADER 0.1", R/A, 2 ROW X 2PIN 5010-H202RA9TP4 HEADER 0.1", R/A, 2 ROW X 2PIN 5010-H202RA9TQ1 TRANSISTOR, BC817-25 NPN,SOT23 2120-BC817025R1 RES., SM, 215R 0805, 1%, 100ppm 1150-2A2150FPR2 POT., SM, 5K0 4mm SQ, 11T,SIDE 1174-DM2502J0R3 RES., SM, 100K 0805, 1%, 100ppm 1150-5A1003FPR4 RES., SM, 18K2 0805, 1%, 100ppm 1150-4A1822FPR5 RES., SM, 1M00 0805, 1%, 100ppm 1150-6A1004FPR6 RES., SM, 18K2 0805, 1%, 100ppm 1150-4A1822FPR7 RES., SM, 2K21 0805, 1%, 100ppm 1150-3A2211FPR8 RES., SM, 2K21 0805, 1%, 100ppm 1150-3A2211FPR9 RES., SM, 49K9 0805, 1%, 100ppm 1150-4A4992FPR10 RES., SM, 49K9 0805, 1%, 100ppm 1150-4A4992FPR11 RES., SM, 2K21 0805, 1%, 100ppm 1150-3A2211FPR12 RES., SM, N/I 0805, 1%,100ppm 1150-NOTINSTR13 RES., SM, 10K0 0805, 1%, 100ppm 1150-4A1002FPR14 POT., SM, N/I (5K0) 4mm SQ, 11T,SIDE 1174-DM2502J0R15 RES., SM, 10K0 0805, 1%, 100ppm 1150-4A1002FPR16 RES., SM, 100K 0805, 1%, 100ppm 1150-5A1003FPR17 RES., SM, SEL 0805, 1%, 100ppm 1150-TBAR18 RES., SM, SEL 0805, 1%, 100ppm 1150-TBAR19 THERMISTOR, SEL NTC,10%,AXIAL 1180-4RDG103KR20 RES., SM, SEL 0805, 1%, 100ppm 1150-TBAR21 RES., SM, 49K9 0805, 1%, 100ppm 1150-4A4992FPR22 RES., SM, 49K9 0805, 1%, 100ppm 1150-4A4992FPR23 RES., SM, SEL 0805, 1%, 100ppm 1150-TBAR24 RES., SM, SEL 0805, 1%, 100ppm 1150-TBAR25 RES., SM, SEL 0805, 1%, 100ppm 1150-TBAR26 RES., SM, SEL 0805, 1%, 100ppm 1150-TBAR27 THERMISTOR, SEL NTC,10%,AXIAL 1180-4RDG103KR28 RES., SM, SEL 0805, 1%, 100ppm 1150-TBAR29 POT., SM, 50K0 4mm SQ, 50K, 11T,SIDE 1174-DM3503J0R30 RES., SM, 604R 0805, 1%, 100ppm 1150-2A6040FPR31 POT., SM, 5K0 4mm SQ, 11T,SIDE 1174-DM2502J0R32 RES., SM, SEL 0805, 1%, 100ppm 1150-TBAR33 RES., SM, 100K 0805, 1%, 100ppm 1150-5A1003FPR34 RES., SM, 49K9 0805, 1%, 100ppm 1150-4A4992FPR35 RES., SM, SEL 0805, 1%, 100ppm 1150-TBAR36 POT., SM, 50K0 4mm SQ, 50K, 11T,SIDE 1174-DM3503J0R37 RES., SM, 49K9 0805, 1%, 100ppm 1150-4A4992FPR38 POT., SM, 5K0 4mm SQ, 11T,SIDE 1174-DM2502J0R39 RES., SM, 15K4 0805, 1%, 100ppm 1150-4A1542FPR40 RES., SM, 49K9 0805, 1%, 100ppm 1150-4A4992FPR41 RES., SM, 137K 0805, 1%, 100ppm 1150-5A1373FPR42 POT., SM, 5K0 4mm SQ, 11T,SIDE 1174-DM2502J0R43 RES., SM, 11K8 0805, 1%, 100ppm 1150-4A1182FPR44 RES., SM, 0R0 0805, 1%, 100ppm 1150-0A0R0000R45 RES., SM, N/I 0805, 1%,100ppm 1150-NOTINSTR46 RES., SM, 4K53 0805, 1%,100ppm 1150-3A4531FPR47 RES., SM, 100K 0805, 1%, 100ppm 1150-5A1003FP
Audio Processor Board Instruction Manual 8-3RefDesig Description Part No.R48 POT., SM, 100K0 4mm SQ, 100K,11T,SIDE 1174-DM4104J0R49 RES., SM, 16k2 0805, 1%, 100ppm 1150-TBAR50 RES., SM, 49K9 0805, 1%, 100ppm 1150-4A4992FPR51 RES., SM, 10K0 0805, 1%, 100ppm 1150-4A1002FPR52 RES., SM, 100K 0805, 1%, 100ppm 1150-5A1003FPR53 RES., SM, N/I 0805, 1%,100ppm 1150-NOTINSTR54 RES., SM, SEL 0805, 1%, 100ppm 1150-TBAR55 RES., SM, 49K9 0805, 1%, 100ppm 1150-4A4992FPR56 RES., SM, 0R0 0805, 1%, 100ppm 1150-0A0R0000R57 RES., SM, SEL 0805, 1%, 100ppm 1150-TBAR58 RES., SM, 0R0 0805, 1%, 100ppm 1150-0A0R0000R59 RES., SM, 20K0 0805, 1%, 100ppm 1150-4A2002FPR60 RES., SM, 18K2 0805, 1%, 100ppm 1150-4A1822FPR61 RES., SM, 18K2 0805, 1%, 100ppm 1150-4A1822FPR62 RES., SM, 15K4 0805, 1%, 100ppm 1150-4A1542FPR63 POT., SM, 5K0 4mm SQ, 11T,SIDE 1174-DM2502J0R64 RES., SM, 100K 0805, 1%, 100ppm 1150-5A1003FPR65 RES., SM, 100K 0805, 1%, 100ppm 1150-5A1003FPR66 RES., SM, 22K1 0805, 1%, 100ppm 1150-4A2212FPR67 RES., SM, 30K9 0805, 1%, 100ppm 1150-4A3092FPR68 RES., SM, 3K48 0805, 1%, 100ppm 1150-3A3481FPR69 RES., SM, 2K00 0805, 1%, 100ppm 1150-3A2001FPR70 RES., SM, 10K0 0805, 1%, 100ppm 1150-4A1002FPR71 RES., SM, 5K11 0805, 1%, 100ppm 1150-3A5111FPR72 RES., SM, 0R0 0805, 1%, 100ppm 1150-0A0R0000R73 RES., SM, N/I 0805, 1%,100ppm 1150-NOTINSTR74 RES., SM, N/I 0805, 1%,100ppm 1150-NOTINSTR75 RES., SM, 10K0 0805, 1%, 100ppm 1150-4A1002FPR76 RES., SM, 16k2 0805, 1%, 100ppm 1150-TBAR77 RES., SM, 20K0 0805, 1%,100ppm 1150-4A2002FPR78 RES., SM, 10K0 0805, 1%, 100ppm 1150-4A1002FPR79 RES., SM, 49K9 0805, 1%, 100ppm 1150-4A4992FPR80 RES., SM, 27K4 0805, 1%, 100ppm 1150-4A2742FPR81 RES., SM, SEL 0805, 1%, 100ppm 1150-TBAR82 RES., SM, 10K0 0805, 1%, 100ppm 1150-4A1002FPR83 POT., SM, 50K0 4mm SQ, 50K, 11T,SIDE 1174-DM3503J0R84 RES., SM, 10K0 0805, 1%, 100ppm 1150-4A1002FPR85 RES., SM, 10K0 0805, 1%, 100ppm 1150-4A1002FPR86 RES., SM, 10K0 0805, 1%, 100ppm 1150-4A1002FPR87 POT., SM, 50K0 4mm SQ, 50K, 11T,SIDE 1174-DM3503J0R88 RES., SM, 49K9 0805, 1%, 100ppm 1150-4A4992FPR89 RES., SM, 100R 0805, 1%, 100ppm 1150-2A1000FPU1 IC, SA571D COMPANDOR, SO-16L 2327-SA571D00U2 IC, MC33174 QUAD OP AMP,SO-14 2304-33174N14U3 IC, MC33174 QUAD OP AMP,SO-14 2304-33174N14U4 IC, LTC1569I, LPF, 10TH ORD, S0-8 2326-15696N08U5 IC, TC4S66F BILATERAL SWITCH,SMV 2375-4S66FSMVU6 IC, TC4S66F BILATERAL SWITCH,SMV 2375-4S66FSMVPCB PCB, FM AUDIO PROCESSOR, MT-3 TX 4321-30911923
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Audio Processor Board Instruction Manual 9-59 AM AUDIO PROCESSOR9.1 IntroductionThe MT-3 AM Transmitter Main Board integrates the MT-3 Front Panel Board, MT-3 AMAudio Processor, Synthesizer or Crystal Control module and Amplifier module together to makea working MT-3 AM series transmitter. The Front Panel Board and the Audio Processor aresoldered directly to the Transmitter Main Board while the Amplifier and the Synthesizer orCrystal Control module are frequency band sensitive, plug-in modules. Circuitry and jumpers onthe Transmitter Main Board control the operation of the modules as well as the overall operationof the MT-3 transmitter. Power and signal connections are made to the 48 pin type 'F' connectoron the rear of the Transmitter Main Board and are routed to the other modules. The front andrear back plates are attached to the Transmitter Main Board and together with the extrudedaluminum shell, as discussed in the assembly section of the Transmitter Manual, form thetransmitter enclosure.9.2 Performance SpecificationsType: MT-3 AM Series TransmitterCompatibility: VT-3A Series Amplifier, OCT-3 Crystal Oscillator, OST-3Frequency Synthesizer.Modulation: 6K00A3 (Amplitude Modulation)Operating Temperature Range: -30˚C to +60˚C, optional - 40˚C temperature test.Operating Humidity: 95% RH (non-condensing) at +25°C.Operating Voltage:+13.8Vdc , +9.5 Vdc Regulated.Front Panel Control: One 3 position switch• NORM (repeat mode)• OFF• KEY TXPTT Activation: • Active to ground with or without time-out-timer;• Microphone activated with or without time-out-timer;• Front Panel switch: KEY TX - without time-out-timer;• NORM - with or without time-out-timer.• Isolated (optional relay) with or without time-out-timer.PTT Time-Out-Timer: Selectable from 1 sec. to 8 hrs. (factory set 5 min.).
9-6 9.3 Audio SpecificationsAudio Input: -30 to 0 dBm into a 600Ω balanced load.Audio Response: Flat audio; +1/-3 dB: 300 Hz - 3 kHzAudio Distortion: Less than 3% -40˚C to +60˚C at 30% modulation,Less than 5% -40˚C to +60˚C at 90% modulation9.4 Audio CircuitsAll of the audio signal conditioning (e.g. limiting, filtering) is performed by the MT-3 AM AudioProcessor. The transmitter board routes the audio lines from the backplane connector to theaudio processor. The audio lines routed to the audio processor are: a 600 ohm balanced input(pins B18 and Z18), and a MIC AUDIO from the MT-3 FRONT PANEL BOARD. It is herethat the MIC audio is processed in the same manner as the 600 ohm balanced audio. The audioprocessor's balanced input pins are isolated from pins B18 and Z18 by a transformer (T1). Twoaudio outputs from the MT-3 AM Audio Processor are routed to the VT-3A130 Amplifier.The MT-3 AM Audio Processor is a versatile circuitboard that can provide several types of audioprocessing. The module also has an on-board programmable push-to-talk (PTT) time-out-timer(TOT) on an attached circuitboard. A continuous +9.5 Vdc supply and a continuous +13.8 Vdcsupply together with a switched +8.0 Vdc supply are required to power the module. Refer tosection 9.11 "MT-3 AM Audio Processor Component Layout" and to section 9.12 "MT-3 AMAudio Processor Schematic Diagram" for component location and designation references.9.5 Power RequirementsThe audio processor can be configured for continuous audio standby or for switched audiostandby by the Transmitter Main Board. If fast audio risetime is desired, the transmitter shouldbe operated in standby mode 3 or 4 as specified below. The current for the associated TOT isapproximately 4 mA when the transmitter is keyed.9.6 Transmitter Standby ModesThe VT-3A130 Transmitter has four different standby modes that trade-off standby currentconsumption for start-up speed. The standby modes are determined by three jumpers: jumper J6which always turns on the '+9.5 Vdc Switched' supply, jumper J7 which selects the power sourcefor the MT-3 AM Audio Processor and jumper J18 which selects the enable line for the OST-3A128 Synthesizer Module.
Audio Processor Board Instruction Manual 9-7The actual current and start-up time may depend on the frequncy controlled source (crystal orsynthesizer) and amplifier module. The current and start-up times given below are representativevalues intended only as a guideline.MODE 1:Jumper J6 out- the audio processor is switched by a PTT signal- the synthesizer is switched by a PTT signal- standby current typically 13 mA- start-up time typically 40 msMODE 2:Jumper J6 in, jumper J7 in the 'y' position, jumper J18 in the 'x' position- the audio processor is switched by a PTT signal- the synthesizer is enabled all of the time- standby current not used in this mode- start-up time not used in this modeMODE 3:Jumper J6 in, jumper J7 in the 'x' position, jumper J18 in the 'y' position- the audio processor is enabled all of the time- the synthesizer is switched by a PTT signal- standby current typically 19 mA- start-up time typically 40 msMODE 4:Jumper J6 in, jumper J7 in the 'x' position, jumper J18 in the 'x' position- the audio processor is enabled all of the time-the synthesizer is enabled all of the time-standby current typically 163 mA-start-up time typically 12 ms9.7 Audio CircuitryThe MT-3 AM Tx Audio Processor refer to section 9.12 "MT-3 AM Audio ProcessorSchematic Diagram" has two audio inputs (Microphone input and Balanced input) which can beused to modulate the transmitter. The input signals are combined by R2 and R17 at acompandor U1. U1b controls the input level and makes gain inversely proportional to the inputlevel (say a 20 dB drop in input level will produced a 20 dB increase in gain). The output willremain fixed at a constant level without clipping and distortion. (Automatic Level Control) Theinput signals are adjusted by the pots R1, R16. The variable gain cell in U1a is used as a voltage-controlled amplifier so that if the power supply (13.8Vdc) has changed the output level willchange in order to keep the modulation of the RF output signal at the same level. The gaincontrol can be adjust by the pot R4. (Automatic Modulation Control) The audio signal thenamplifies and filters at U2. The output signal is adjusted by the pot R14.
9-8 9.8 AM Audio Processor Factory ConfigurationThe MT-3 AM Transmitter Audio Processor is factory configured as follows:• Microphone Input: 1kHz tone at -10 dBm gives 50% maximummodulations.• Audio Balanced Input: 1 kHz tone at -8 dBm gives 90% maximummodulations.• Automatic Modulation Control enabled• Automatic Level Control enabledThe corresponding jumper settings are:• Jumper JU1: 'x' position Automatic Modulation Control disabled• Jumper JU2: not installed Modulation configuration• Jumper JU3: 'y' position Automatic Level Control enabled• Jumper JU4: not installed Time-out-time power supply (optional)• Jumper JU5: 'y' position Voice application• Jumper JU6: 'y' position Voice application• Jumper JU7: not installed Modulation configuration• Jumper JU8: 'y' position Automatic Level Control enabled• Jumper JU9: installed Power AMC and Microphone enabled9.9 AM Audio Processor AlignmentVerify the standard factory settings for the MT-3 AM Audio Processor as given in section 9.8before beginning the standard modulation adjustment procedure. If the transmitter's channelfrequency changes, the audio processor should be realigned to optimize the transmitter'sperformance. The schematic diagram for the audio processor is shown in section 9.12 and thecomponent layout is shown in section 9.11.*Note: clockwise rotation of controls increases signal levels1 Before adjusting the audio board, confirm that the transmitter frequency is correct.2 Unscrew and slide out the case of the transmitter. Locate the Tx Audio Board.3 Connect the transmitter RF Output to a Radio communications test set.4 Connect the 600 ohm input to the incoming audio (pins B18, Z18). Set the audiofrequency to 1 kHz at the desired level of -8 dBm.5 Turn the transmitter on.6 Adjust the pot R16, in order to achieve about 0.700 Vrms at TP4.7 Adjust the pot R14, in order to achieve about 0.200 Vrms at TP8.8 Tune the Audio Adjust pot R35 on the Power Amplifier board to obtain 90% modulation.9 Apply a 1 kHz, -20 dBm input signal and adjust the pot R16 in order to obtain 30%modulation.
Audio Processor Board Instruction Manual 9-910 Apply a 1 kHz, -8 dBm input signal, the modulation should be 90%, observe that thedistortion of the transmitted signal is within 5.0%.11 Slowly increase the input audio signal level to 5 dBm and observe that the modulationdoes not go over 100%. This step verifies the correct operation of the ALC .12 Change 13.8Vdc power supply to 10V and then to 17V, the modulation of the output RFsignal should remain at the same level of 90% ±7% and distortion should be less then3%. This step verifies the correct operation of the power regulator on the transmitteramplifier board.13 Repeat steps 7 and 9 if required.14 Supply a 1 kHz, -10 dBm signal to the microphone input. (Note the level restriction of -25 dBm to 0 dBm.)15 Adjust the Microphone Input Level Adjust pot (R1) to achieve 50% of RF signalmodulation. Observe that the distortion should be under 5%.16 Turn off the transmitter. Remove the signal source and replace all the screws.
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Audio Processor Board Instruction Manual 9-119.10 AM Audio Processor Electrical Parts ListRefDesign Description Part No.C1 CAP., SM, 4.7nF CER., 1206, X7R 1008-3B472K5RC2 CAP., 470nF FILM, MMK5,10%,63V 1016-5D474K63C3 CAP., SM, 680nF TANT., 10%, 35V 1055-4B684K35C5 CAP., 470nF FILM, MMK5,10%,63V 1016-5D474K63C6 CAP., SM, 100nF CER., 0805, X7R, 50 1008-5A104K5RC7 CAP., SM, 10nF CER., 0805, X7R 1008-4B103K5RC8 CAP., SM, 680nF TANT., 10%, 35V 1055-4B684K35C9 CAP., SM, 4.7uF TANT., 10%, 16V 1055-5B475K16C10 CAP., 470nF FILM, MMK5,10%,63V 1016-5D474K63C11 CAP., SM, 2.2uF TANT., 20%, 20V 1055-5B225K20C12 CAP., SM, 4.7uF TANT., 10%, 16V 1055-5B475K16C13 CAP., SM, 1.0nF CER., 0805, X7R, 50V 1008-3A102K5RC14 CAP., SM, 100nF CER., 0805, X7R, 50V 1008-5A104K5RC15 CAP., 4.7nF FILM, MMK5, 10%, 63V 1016-3A472K63C16 CAP., 2.2nF FILM, MMK5, 10%, 63V 1016-3A222K63C17 CAP., SM, 330pF CER., 0805,C0G 1008-2A331J1GC18 CAP., SM, 220pF CER., 0805,C0G 1008-2A221J1GC19 CAP., SM, 1.0uF TANT., 20%, 35V 1055-5B105M35C20 CAP., SM, 220pF CER., 0805,C0G 1008-2A221J1GC21 CAP., SM, 4.7uF TANT., 10%, 16V 1055-5B475K16C22 CAP., SM, 680pF CER., 1206,C0G 1008-2B681J1GC23 CAP., SM, 220pF CER., 0805,C0G 1008-2A221J1GC25 CAP., SM, 150pF CER., 0805,C0G 1008-2A151J1GD1 DIODE, 1N5221B ZENER 3.9V,DO35 2002-1N5221B0D2 DIODE, 1N5221B ZENER 3.9V,DO35 2002-1N5221B0FB1 FERRITE BEAD, SM,FERRITE BEAD 43MIX,.18x.12 1213-43181200P1-P5 HEADER 01", R/A, 2 ROW X 2PIN 5010-H202RA9TPCB AUDIO PROCESSOR, VT-3A130 4322-30500494
9-12 RefDesign Description Part No.R1 POT., SM, 5K0 4mm SQ, 11T,SIDE 1174-DM2502J0R2 RES., SM, 20K0 0805, 1%,100ppm 1150-4A2002FPR3 RES., SM, 49K9 0805, 1%,100ppm 1150-4A4992FPR4 POT., SM, 50K0 4mm SQ, 50K, 11T,SIDE 1174-DM3503J0R5 RES., SM, 30K9 0805, 1%,100ppm 1150-4A3092FPR6 RES., SM, 100K0 0805, 1%,100ppm 1150-5A1003FPR7 TEMPSISTOR, 1K2 PTC, 10%,AXIAL 1181-3AGD122KR8 RES., SM, 4K75 0805, 1%,100ppm 1150-3A4751FPR9 RES., SM, 10K0 0805, 1%,100ppm 1150-4A1002FPR10 RES., SM, 27K4 0805, 1%,100ppm 1150-4A2742FPR11 RES., SM, 27K4 0805, 1%,100ppm 1150-4A2742FPR13 RES., SM, 18K2 0805, 1%,100ppm 1150-4A1822FPR14 POT., SM, 100K0 4mm SQ, 100K,11T,SIDE 1174-DM4104J0R15 RES., SM, 49K9 0805, 1%,100ppm 1150-4A4992FPR16 POT., SM, 5K0 4mm SQ, 11T,SIDE 1174-DM2502J0R17 RES., SM, 10K0 0805, 1%,100ppm 1150-4A1002FPR18 RES., SM, 470K0 0805, 1%,100ppm 1150-5A4703FPR19 RES., SM, 5K11 0805, 1%,100ppm 1150-3A5111FPR20 RES., SM, 39K2 0805, 1%,100ppm 1150-4A3922FPR22 RES., SM, 3K48 0805, 1%,100ppm 1150-3A3481FPR23 RES., SM, 51K1 0805, 1%,100ppm 1150-4A5112FPR24 RES., SM, 15K4 0805, 1%,100ppm 1150-4A1542FPR25 RES., SM, 82K5 1206, 1%,100ppm 1150-4B8252FPR26 RES., SM, 3M30 0805, 5%,200ppm 1150-6A3304JLR27 RES., SM, 681R0 0805, 1%,100ppm 1150-2A6810FPR28 RES., SM, 82K5 1206, 1%,100ppm 1150-4B8252FPR29 RES., SM, 5K11 0805, 1%,100ppm 1150-3A5111FPR30 RES., SM, 47K5 0805, 1%,100ppm 1150-4A4752FPR31 RES., SM, 15K4 0805, 1%,100ppm 1150-4A1542FPR32 RES., SM, 51K1 0805, 1%,100ppm 1150-4A5112FPU1 IC, SA571D COMPANDOR, SO-16L 2327-SA571D00U2 IC, MC33174 QUAD OP AMP,SO-14 2304-33174N14
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ELECTRONICS LTD.DANIELS TM9-14 Audio Processor Board Instruction Manual9.11 AM Audio Processor Component LayoutVICTORIA B.C .DANIELS ELECTRONICSDRAWN BY: SHANE ADWG REV DATE: AUGUST 24/98DATE: 24 AUGUST 1998DWG No: XXXXXAT1DELECTRONICSPCB 50049-04TITLE:TX AM AUDIO PROCESSOR OUTLINEVICTORIA B.C .DANIELS ELECTRONICSDRAWN BY: SHANE ADWG REV DATE: AUGUST 24/98DATE: 24 AUGUST 1998DWG No: XXXXXAT1DELECTRONICSTITLE:TX AM AUDIO PROCESSOR OUTLINE (bottom)DWG No: VAP130AS1CTITLE: TX AM AUDIO PROCESSOR LAYOUT- COMPONENTS NOT INSTALLED- JUMPERS INSTALLEDDWG REV DATE:AUGUST 25/98FB 1C14.7nFR220k0R530K9R6100k0C131.0nFR450k0AutomaticModulationControl Input AdjustR15k0MicrophoneInput LevelAdjustU1SA571DC3680nFC214.7uFC124.7uFC8680nFC94.7uFR263M3C6100nFR27681R0R165k0BalancedInput LevelAdjustR1710k0R1027K4R1127K4C112.2uFR1318k2R14100k0ModualtionControl OutputAdjustR223K48R2582k5R910k0U2MC33174C23220pFC191.0uFR18470k0DWG No: VAP130AS2CTITLE: TX AM AUDIO PROCESSOR SURFACE MOUNT DESIGNATIONSC710nFJU1JU8JU4XYJU7DWG REV DATE: MARCH 06 /98XYJU3YXJU6XYJU5XYC22680pFR2882k5JU2C20220pFC25150pFC17330pFR2351k1R3251k1 R3115k4R2415k4R3047k5R2039k2R295k11R195k11C18220pFR1549k9R349k9 C14100nFJU9R84k751234123412341234DWG No: VAP130AT1ATITLE: AM TRANSMITTER THROUGH HOLE LAYOUTD11N5221BD21N5221BC10470nFC5470nFC2470nFP 3P 2P 5P 1DWG No: VAP130AT2BTITLE: AM TRANSMITTER THROUGH HOLE DESIGNATIONSC154.7nF C162.2nFR71k2 TEMPDWG REV DATE: OCTOBER / 98wo # xxxxTP 6TP 8TP 5TP 4TP 3TP2P 3P 2 P 5TP7P 11234123412341234P5P7P8P6Solder SideComponent Side MT3AMTXM8CTP1
ELECTRONICS LTD.DANIELS TMAudio Processor Board Instruction Manual 9-159.12 AM Audio Processor Schematic DiagramMicrophone InputLevel AdjustMicrophoneAutomatic ModulationsCo ntrol Input AdjustBalanced Input Level AdjustModulation Co ntrolOutput AdjustAM C B ypassMod o utputBalanced Input9.5 Vdc13.8 VdcAutomatic Modulation ControlOPTIONALAutomatic Level Con trolX Y XYXYXYXY3.0 KHZ BESSEL LOW PASS FILTER3.0 KHZ BUTTERWORTH LOW PASS FIILTERApp rox. 200mV rms @ 90% mod.A LC B y passFB14.7nFC1CW 5K0R1TP1470nFC2CW50K0R4TP2VccRect InVar GRect CapOutputInv InR3THD Trim GND2317568134SA571DU1aRect InVar GRect CapOutputInv InR3THD Trim 1514161012119SA571DU1b100K0R6TP3680nFC3100nFC610nFC7TP4C8680nFC94.7uFC10470nF R1318K2CW5K0R164.7uFC121.0nFC13R18470K0TP5TP64.7uFC21TP8MT-3 TX TIME-OUT-TIMER3P12P51P12P13P24P14P34P54P21P38.0V9.5V8.0VP7-1P8 -1P9-1P6-1J7-1J8-1J6-1J5-11N5221BD11N5221BD2681R0R272.2uFC11TP730K9R52P3234111U2MC33174a657U2MC33174b910 8U2MC33174c8.0VR349K9R1549K9C14100nFC162.2nF1312 14dMC33174U2100K0R14470nFC5R1710K0C154.7nFR3251K1C18220pFR295K11R195K11R2415K4R3115K4R2351K1R2882K5C22680pFC23220pFJU5R2582K5JU7JU839K2R2047K5R30330pFC17150pFC2520K0R2220pFC20JU63K48R22JU41.0uFC1910K0R927K4R1027K4R113M30R26JU3JU94K75R81K2R7JU2JU1
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Audio Processor Board Instruction Manual 10-110 REVISION HISTORYISSUE DATE REVISION1 Oct 2000 First Issue.2 Nov 2000 Second IssueIncorporated the AM Audio Processor documentation into this manual.For specific AM revision history, see manual IM22-MT3AMTXMN-4IM
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DANIELSELECTRONICS LTD. ®MT-3 RADIO SYSTEMSVHF AMPLIFIERINSTRUCTION MANUALVT-3132 - 174 MHzCovers models:VT-3/150 AmplifierCopyright © 1998 Daniels Electronics Ltd. All rights reserved. No part of this publication may bereproduced, stored in a retrieval system or transmitted in any form or by any means, electronic,mechanical, photocopying, recording or otherwise, without the prior written consent of DanielsElectronics Ltd.Issue: 1 Previous Issue: N/AIssue Date: May 1998 Previous Issue Date: N/A Daniels Electronics Ltd.Printing Date: January 2001Victoria, B.C.Part No.: IM21-VT3150AMP PRINTED IN CANADA
iiVHF Amplifier Instruction Manual VT-3 132 - 174 MHzNOTE:The user's authority to operate this equipment could be revoked through anychanges or modifications not expressly approved by Daniels Electronics Ltd.The design of this equipment is subject to change due to continuousdevelopment. This equipment may incorporate minor changes in detail from theinformation contained in this manual.
VHF Amplifier Instruction Manual VT-3 132 - 174 MHziiiTABLE OF CONTENTSPage1 GENERAL....................................................................................................................1-11.1Introduction.......................................................................................................1-11.2Performance Specification.................................................................................1-12 THEORY OF OPERATION.........................................................................................2-12.1Amplifier Operation...........................................................................................2-12.2 Power Requirements..........................................................................................2-12.3 RF Circuitry.......................................................................................................2-22.3.1VT-3/150 Lowpass Filter.......................................................................2-22.4 Power Control Circuitry.....................................................................................2-22.5 Power Sensing Circuitry....................................................................................2-32.5.1 Output Power Sense ..............................................................................2-32.5.2 VSWR Sense.........................................................................................2-32.5.3 VSWR Overload....................................................................................2-43VT-3/150 AMPLIFIER ALIGNMENT.........................................................................3-13.1 General..............................................................................................................3-13.2 Repair Note........................................................................................................3-13.3Recommended Test Equipment List...................................................................3-13.4 Printed Circuitboard Numbering Convention.....................................................3-23.5 Standard Factory Settings and Jumper Configuration........................................3-23.6VT-3/150 Amplifier Alignment..........................................................................3-23.6.1 General..................................................................................................3-23.6.2VT-3/150 Amplifier Adjustment............................................................3-33.6.2.1 General Set-Up..........................................................................3-33.6.2.2 Output Power Alarm (Forward Power)......................................3-43.6.2.3 Output Power.............................................................................3-53.6.2.4Antenna VSWR Alarm (Reverse Power)...................................3-53.6.2.5Antenna VSWR Overload..........................................................3-63.6.2.6 Procedure Verification...............................................................3-64 ILLUSTRATIONS AND SCHEMATIC DIAGRAMS................................................4-14.1VT-3/150 VHF Amplifier Component Layout...................................................4-24.2VT-3/150 VHF Amplifier Schematic Diagram...................................................4-34.3VT-3/150 VHF Lowpass Filter Component Layout...........................................4-54.4VT-3/150 VHF Lowpass Filter Schematic Diagram..........................................4-5
ivVHF Amplifier Instruction Manual VT-3 132 - 174 MHz5 PARTS LISTS...............................................................................................................5-15.1VT-3/150 Amplifier Electrical Parts List............................................................5-15.2VT-3/150 Low Pass Filter Electrical Parts List..................................................5-35.3VT-3/150 Amplifier Mechanical Parts List........................................................5-36 REVISION HISTORY..................................................................................................6-1
RF Exposure WarningRF Exposure WarningThis transmitting equipment conforms to SAR (Specific Absorption Rate) limits regarding exposure of humanbeings to radio frequency electromagnetic energy, as defined in the following national and international standardsand guidelines:1. Industry Canada Radio Standards Specification 102 (RSS-102), Evaluation Procedure for Mobile andPortable Radio Transmitters with respect to Health Canada’s Safety Code 6 for Exposure of Humans toRadio Frequency Fields;2. Health Canada Safety Code 6, Limits of Human Exposure to Radiofrequency Electromagnetic Fields in theFrequency Range from 3 kHz to 300 GHz1;3. United States Federal Communications Commission, Code of Federal Regulations; 47 CFR Part 1,§ 1.1310 Radiofrequency radiation exposure limits; and4. American National Standards Institute (ANSI) criteria for localized SAR in Section 4.2 of “IEEE Standardfor Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to300 GHz”2.Notes: A. The SAR limit for uncontrolled exposure of persons not classed as RF and microwave exposedworkers (including the general public) for transmitter equipment operating below 10 GHz, as definedin the references above, is 2 W/m2 (0.2 mW/cm2).B. This transmitting equipment is designed for use with an outdoor antenna with a characteristic antennagain of 10 dBi, typically mounted at a significant height above ground to provide for adequate signalcoverage. To ensure that the general public is not exposed to a power density above the recommendedlimit of 2 W/m2 (0.2 mW/cm2), the equipment must be installed such that the following minimum safedistances from the antenna are maintained:6.3 m (20.7 ft) when configured with 100 W PA3.5 m (11.3 ft) when configured with 30 W PA1.8 m (5.9 ft) standalone (i.e. no PA) 8 WC. The following power density formula has been utilized in determining minimum safe distances:24RPGSπ=where: S = Power density (in appropriate units, e.g. mW/cm2)P = Power input to the Antenna (in appropriate units, e.g., mW)G = Power gain of the antenna in the direction of interest relative to an isotropic radiatorR = Distance to the center of radiation of the antenna (appropriate units, e.g., cm) 1 Minister of Public Works and Government Services, Canada 1999, Cat. H46- 2/ 99- 237E, ISBN 0- 662- 28032- 62 ANSI/IEEE C95.1–1992, Copyright 1992 by the Institute of Electrical and Electronics Engineers, Inc., New York, New York 10017
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VHF Amplifier Instruction Manual VT-3 132 - 174 MHz1-11GENERAL1.1 IntroductionThe VT-3/150 Amplifier provides the final stage of RF amplification and filtering for the entireVHF Transmitter VT-3 132 - 174 MHz family. The amplifier has two distinct frequency ranges:132 to 150 MHz, and 150 to 174 MHz with continuously adjustable 2.0 to 8.0 Watts output power.The VT-3/150 Amplifier is housed in a machined aluminum case that ensures optimum RFshielding, provides a good ground, and also acts as a heatsink.Additionally, the VT-3/150 Amplifier is equipped with output power and VSWR sensing lineswhich can be individually configured as open collector or linear outputs. The internal VSWRsensor protects the amplifier from high antenna VSWR by approximately halving the amplifier'sRF gain when a VSWR overload condition is present.Output filtering for the VT-3/150 Amplifier is provided by the VT-3/150 Lowpass Filter Board.The lowpass filter assembly is mounted in a separate compartment of the amplifier case in order toprovided maximum attenuation of harmonic and other spurious signals.Refer to Section 4 for the VT-3 132 - 174 MHz VHF amplifier and lowpass filter componentlayouts and schematic diagrams1.2Performance SpecificationType: MT-3 series VHF Amplifier module.Compatibility:MT-3 series Transmitter Main Board.Frequency Range: 132 MHz to 150 MHz or 150 MHz to 174 MHz.RF Power Output:adjustable 2.0 to 8.0 WattsRF power Input:nominal level adjustable from +4 dBm to +10 dBm,held within +/- 2 dB of nominal.Ouput Impedance and VSWR: 50 Ω, Type N connector; 3:1 max. VSWR.Input /Output Isolation:> 60 dBDuty Cycle:100%: Continuous operation from -40˚ C to +60˚C.Harmonic Emissions: Less than -80 dBc .
1-2VHF Amplifier Instruction Manual VT-3 132 - 174 MHzTransmitter Mismatch Protection:20:1 VSWR at all phase angles.Transmitter Alarm:Forward power sense and reverse VSWR;- open collector output (separate or 'OR'ed configuration);-linear output (separate lines only).Operating Temperature Range: -30˚ C to +60˚ C, optional -40˚ C temperature test.Operating Humidity:95% RH (non-condensing) at +25˚ C.Operating Voltage:+13.8 Vdc Nominal (range +11 to +16 Vdc),+9.5 Vdc Regulated.Transmit Current: 0.7 Amp typical; 1.1 Amp maximumAmplifier Standby Current: less than 0.5 mA.Amplifier Enable:Active to ground.Amplifier Enable Response:typically overdamped, rising to within 90% of full power within 5 msec; maximum (underdamped) overshoot of 30%.
VHF Amplifier Instruction Manual VT-3 132 - 174 MHz2-12THEORY OF OPERATION2.1Amplifier OperationA power control circuit monitors the RF output power of amplifier U4 and keeps the powerconstant. The output power from the high power amplifier will change as the unregulated +13.8Vdc supply varies. Note that the frequency band does not change how the amplifier operates; it onlychanges a few component values in the RF circuitry.Power for the VT-3/150 Amplifier is provided from the MT-3 Transmitter Board. The +13.8 Vdcsupply (if required) is continuously connected to the amplifier; whereas, the +9.5 Vdc supply isalways switched by the transmitter's PTT circuitry. The VT-3/150 Amplifier will not use any powerfrom the +13.8 Vdc supply until the amplifier's +9.5 Vdc line is switched on and an RF inputsignal is present. The synthesizer or crystal control module controls the +9.5 Vdc to the amplifier'scircuitry; switching it on by grounding the amplifier's input enable line. The synthesizer or crystalcontrol module will ground the input enable line only when the RF signal from the synthesizer orcrystal control module is phase locked. This prevents unwanted spurious emissions duringtransmitter start-up. A typical start-up sequence is shown below:1) the transmitter is keyed on (+13.8 Vdc is always present)2)+9.5 Vdc is switched on by the PTT circuitry and the synthesizeror crystal control module PTT line is pulled low3) an RF signal is output to the amplifier4) the amplifier's input enable line is activated5) the amplifier outputs RF power2.2Power RequirementsTypical current requirements for the VT-3/150 Amplifier at different power levels are given in theTable 2-3 below. The current drawn from the +9.5 Vdc supply should never exceed 1.2 Amps andthe current drawn from the +13.8 Vdc supply should never exceed 1.5 Amps.Table 2-1VT-3/150 Amplifier Current ConsumptionOutputPower+9.5 VdcSupply Current+13.8 VdcSupply Current2.0 W 0.64 A 0.51 A4.0 W 0.79 A 0.75 A6.0 W 0.89 A 0.93 A8.0 W 1.04 A 1.10 ANote: Current consumption measured at 153 MHz
2-2VHF Amplifier Instruction Manual VT-3 132 - 174 MHz2.3 RF CircuitryThe RF circuitry consists of several blocks: a 7 dB input pad (R1, R2, and R3), an RF amplifiermodule (U4), an output power boosting transistor (Q7), three directional couplers (TL1, TL3, andTL4), and the VT-3/150 Lowpass Filter. The heart of the VT-3/150 Amplifier is RF amplifiermodule U4. The output of U4 is further amplified by Q1 to a maximum of 8.0 Watts at the antennaconnector. The frequency band of the VT-3/150 Amplifier is determined by the operating frequencyrange of the RF amplifier module U4. Directional couplers (TL1, TL3, and TL4) are used to sampleforward and reverse power. The sampled power is used by the sensing and power control circuits tocontrol the amplifier's operation. The final step in the RF path is output filtering and, as mentionedearlier, this is done by the VT-3/150 Lowpass Filter.2.3.1VT-3/150 Lowpass FilterThe VT-3/150 Lowpass Filter is a 50 ohm, 9 pole, reciprocal filter with a 3 dB cutoff frequency ofapproximately 185 MHz. The lowpass filter assembly attenuates the desired signal's harmonics aswell as any other out-of-band emissions so that a 'clean' RF signal is output to the antennaconnector.2.4Power Control CircuitryThe VT-3/150 Amplifier employs a closed loop power control which uses a sample of the forwardRF power to control the gain of RF amplifier U4. Op-amp U1b compares the sampled RF voltageto the output power setpoint and generates an error signal which Q3 uses to control the voltage onU4's gain control pin. The output power setpoint is determined by R7, the Output Power Adjustpotentiometer.The forward power is sampled by TL1, D5, C14, R13, L6, R12, and C15. The power controlcircuitry keeps the output power of U4 constant. Therefore the amplifier's output power willfluctuate with variations in the +13.8 Vdc supply voltage.
VHF Amplifier Instruction Manual VT-3 132 - 174 MHz2-32.5Power Sensing CircuitryThe VT-3/150 Amplifier is equipped with output power and VSWR sensing lines which can beindividually configured as open collector or linear outputs. In open collector configuration, theoutput is active low, that is, when a fail condition is detected (not enough output power or too highantenna VSWR) the open collector transistor is turned on. In linear configuration, a voltageproportional to the sensed output power or antenna VSWR is output.Both the Output Power Alarm setpoint and the VSWR Alarm setpoint are individually adjustable;however, the Output Power Alarm setpoint must always be adjusted before the VSWR Alarmsetpoint. This is because the Output Power Alarm setpoint is used as a reference by the VSWRAlarm circuitry.2.5.1Output Power SenseThe output power sense circuitry uses directional coupler TL2 to sample some of the forwardpower. The sampled power is rectified by diode D6 and capacitor C20 and then amplified byop-amp U3b. Op-amp U3b's amplification is controlled by R21, the output power alarm adjustpotentiometer. The amplified voltage is then output directly in linear operation (JU1 installed, JU2not installed) or compared by op-amp U1a which then drives transistors Q4 and Q3 for opencollector operation (JU1 not installed, JU2 installed).In open collector configuration, Q3 (the open collector output transistor) is turned on when analarm condition occurs. The adjustment range for the output power alarm can vary depending onthe setting of R21 (the Output Power Alarm Adjust potentiometer).2.5.2VSWR SenseThe VSWR sense circuitry uses directional coupler TL3 to sample some of the power reflectedfrom the antenna terminal. The reflected power is rectified by diode D7 and capacitor C25 and thenamplified by op-amp U2b. Op-amp U2b's amplification is controlled by R36, the VSWR AlarmAdjust potentiometer. The amplified voltage is then output directly in linear operation (JU4installed, JU3 not installed) or compared to the output power alarm setpoint by op-amp U3a whichthen drives transistor Q5 for open collector operation (JU4 not installed, JU3 installed).In open collector configuration, Q5 (the open collector output transistor) is turned on when analarm condition occurs. The adjustment range for the VSWR Alarm can depending on the settingof R36 (the VSWR Alarm Adjust potentiometer).
2-4VHF Amplifier Instruction Manual VT-3 132 - 174 MHz2.5.3 VSWR OverloadThe VSWR overload circuit protects the VT-3/150 Amplifier from excessive antenna VSWR byreducing the amplifier's gain (output power) when an overload condition occurs. The VSWRoverload circuit (R14, R37, R39, R40, U2a, and Q6) is an extension of the VSWR sense circuit andoperates the same as the VSWR sense open collector circuit. The VSWR Overload Adjustpotentiometer (R37) reduces the voltage level of the VSWR Alarm Setpoint. The voltage set byR37 is the compared to the output power alarm setpoint by op-amp U2a which then drivestransistor Q6. When transistor Q6 turns on, signaling an overload condition, resistor R14 isgrounded which reduces the output power setpoint. Reducing the output power setpoint lowers theVT-3/150 Amplifier's gain and protects the amplifiers from excessive current draw resulting fromhigh antenna VSWR.The VSWR overload circuit's range of adjustment depends on the setting of the VSWR AlarmAdjust potentiometer (R36). The VSWR overload transistor Q6 can be activated at the same pointat which the VSWR alarm becomes active or the VSWR overload circuit can be disabled by turningR37 completely counterclockwise.
VHF Amplifier Instruction Manual VT-3 132 - 174 MHz3-13VT-3/150 AMPLIFIER ALIGNMENT3.1GeneralConnections to the power supply, alarm and transmit enable lines (ENA), are clearly marked on theamplifier case. The amplifier is enabled when the enable line (ENA) is grounded.If the amplifier is installed in the transmitter, alignment is simplified by using an SR-3 Subrack,SM-3 System Monitor, and RF extender cable to provide transmitter power and signalinterconnection (see the Transmitter Main Board Manual for details). For complete transmitteralignment, the Transmitter Main Board, Synthesizer, Amplifier, and Audio Processor should betuned in the aforementioned order. Please refer the corresponding manuals for each module.If the input RF level is not changed, adjustments to the output power and alarm thresholds may bemade without removing the amplifier cover. However, in the case of a complete amplifier alignment,the amplifier should be separated from the Transmitter Main Board and the amplifier cover removedto expose all amplifier circuitry. All jumpers and test points are clearly marked.3.2 Repair NoteThe VT-3/150 Amplifier is mainly made up of surface mount devices which should not be removedor replaced using an ordinary soldering iron. Removal and replacement of surface mountcomponents should be performed only with specifically designed surface mount rework and repairstations complete with ElectroStatic Dissipative (ESD) protection.When removing Surface Mount Solder Jumpers, it is recommended to use solder braid in place ofmanual vacuum type desoldering tools when removing jumpers. This will help prevent damage tothe circuitboards.3.3 Recommended Test Equipment ListAlignment of the transmitter requires the following test equipment or its equivalent.Dual Power Supply:Regulated +9.5 Vdc at 0.1 A.Regulated +13.8 Vdc at 2 A - Topward TPS-4000Oscilloscope / Multimeter:Fluke 97 ScopemeterCurrent Meter: Fluke 75 multimeterRadio communications test set : Marconi Instruments 2955RVSWR 3:1 mismatch load:JFW 50T-035-3.0:1coaxial test cable set three 50 Ω cables of incremental length 20 to 40 cmAlignment Tool:Johanson 4192
3-2VHF Amplifier Instruction Manual VT-3 132 - 174 MHzIt is recommended that the radio communications test set be frequency locked to an externalreference (WWVH, GPS, Loran C) so that the high stability oscillator may be accurately set towithin its ±1 ppm frequency tolerance.3.4Printed Circuitboard Numbering ConventionTo ease troubleshooting and maintenance procedures, Daniels Electronics Limited has adopted aprinted circuitboard (PCB) numbering convention in which the last two digits of the circuitboardnumber represent the circuitboard version. For example:• PCB number 43-912010 indicates circuitboard version 1.0;• PCB number 50002-02 indicates circuitboard version 2.0.All PCB's manufactured by Daniels Electronics are identified by one of the above conventions.3.5Standard Factory Settings and Jumper ConfigurationThe VT-3/150 Amplifier is factory configured as follows:• Open collector configuration for Output Power Alarm.• Open collector configuration for Antenna VSWR Alarm.The corresponding jumper settings are:• Jumper JU1: not installedOutput power alarm - linear output• Jumper JU2:installedOutput power alarm - open collector output• Jumper JU3:installedAntenna VSWR alarm - open collector output• Jumper JU4: not installedAntenna VSWR alarm - linear output3.6 VT-3/150 Amplifier Alignmentinvisible text3.6.1 GeneralThe VT-3/150 Amplifier is a frequency sensitive module that is factory assembled to operate in oneof two frequency bands: 132 to 150 MHz or 150 to 174 MHz. The amplifier requires 7 dBm ofinput power and is continuously adjustable over the its power range of 2.0 to 8.0 Watts. TheVT-3/150 Amplifier provides Output Power and Antenna VSWR Alarm outputs which can beconfigured for open collector output or linear operation. The amplifier's output power level andalarm levels can be set without detaching the amplifier from the transmitter board. However, tochange the configuration of the output power alarm or the Antenna VSWR alarm, the VT-3/150Amplifier must be detached from the MT-3 Transmitter Board. Refer to page 4-2 "VT-3/150 VHFAmplifier Component Layout" for the location of solder jumpers JU1 to JU4.
VHF Amplifier Instruction Manual VT-3 132 - 174 MHz3-33.6.2VT-3/150 Amplifier AdjustmentThe Amplifier alignment consists of two adjustment procedures; (i) a general set up (section3.6.2.1) procedure which sets up the proper bias conditions for the RF transistors and (ii) the RFthreshold adjustments which set up the desired alarm threshold levels as well as the RF outputpower. The general alignment procedure is required following major repair operations, changes inRF input levels or large changes in operating frequency (greater than ± 1.0 MHz).The RF output and alarm threshold level adjustments are more easily accessible so that fineadjustments can be made in the field. Depending on user requirements, the RF alarm thresholdlevels should be checked whenever a significant change in operating frequency (± 0.5 MHz) ismade. As the antenna VSWR alarm is dependent on the output power alarm, the output power alarmshould always be set first. The order of adjustment should be:1) Set the desired output power alarm level (section 3.6.2.2).2) Set the output power (section 3.6.2.3).3) Set the desired Antenna VSWR alarm level (section 3.6.2.4).4) Set the desired overload condition level (section 3.6.2.5).Details for the alignment steps are outlined below. 3.6.2.1General Set-UpAll of the setup steps detailed below are performed at the factory as part of the initialTransmitter alignment. A general realignment of the Amplifier Module will be requiredunder the following conditions:(i) the nominal RF input power applied to the amplifier is changed from thatwhich the amplifier was intially set up for, and(ii) components, particularly the RF transistors Q1 and Q2, are replacedduring a repair operation.1. Connect the transmitter's antenna output connector to the type N input of the radiocommunications test set through a short section of low loss 50 Ω coaxial cable.2. Turn all four (4) of the adjustment potentiometers (R7, R21, R36, and R37) fullycounterclockwise.3. Turn on the power to the transmitter.
3-4VHF Amplifier Instruction Manual VT-3 132 - 174 MHz4. Monitor the +9.5 Vdc and 13.8 Vdc supply current and adjust R7, the output poweradjustment, so that approximately 1 Amp is being drawn on the +9.5 Vdc line and 1.3Amps or less is being drawn on the 13.8 Vdc line. This should produceapproximately 8 Watts.5. If only a 6 or 7 watt output is obtained, adjust the low pass filter coil pairs L2/L3 andL1/L4 to obtain 8 watts.3.6.2.2Output Power Alarm (Forward Power)Open Collector Output *note: the output power alarm output is factory configured as an open collector outputso a pull-up resistor may be required on transmitter pin B26 if one is not alreadypresent.1.Adjust R7, the output power adjustment, to the output power at which the OutputPower Alarm is to be activated.2. Monitor transmitter pin B26, the Output Power Alarm line, and slowly turn R21, theoutput power alarm adjustment, clockwise until pin B26 goes low. The alarm is nowset for the current output power of the transmitter.Linear Output1. Open the amplifier case to disable (open circuit) jumper JU2 and enable (short)jumper JU1.2. Monitor transmitter pin B26 with a voltmeter.3.Adjust R7, the output power adjustment, for full transmitter output power.4.Adjust R21, the output power alarm adjustment, so that the voltmeter indicates +7.5Vdc for full transmitter output power.5. Turn R7, the output power adjustment, fully counterclockwise. The voltmeter shouldread approximately +3 Vdc.6. Disconnect the voltmeter.
VHF Amplifier Instruction Manual VT-3 132 - 174 MHz3-53.6.2.3 Output Power1. Turn R7, the output power adjustment, clockwise to the desired transmitter outputpower.3.6.2.4 Antenna VSWR Alarm (Reverse Power)Open Collector Output *note: the antenna VSWR alarm output is factory configured as an open collectoroutput so a pull-up resistor may be required on transmitter pin Z26 if one is notalready present. The output power alarm must be set first before the antenna VSWRalarm can be set.1. Disconnect the radio communications test and terminate the transmitter with the 3:1mismatch load.2. Monitor pin Z26, the Antenna VSWR Alarm line, and turn R36 fullycounterclockwise. Pin Z26 should be high. Slowly turn R36 clockwise until pin Z26is pulled low. Put the 50 ohm load back on again, Pin Z26 should go high. Thereverse power trip point is now set for a VSWR of 3:1.Linear Output1. Open the amplifier case to disable (open circuit) jumper JU3 and enable (short)jumper JU4.2. Monitor transmitter pin Z26 with a voltmeter.3. Disconnect the radio communications test set and terminate the transmitter with the3:1 mismatch load.4.Adjust R36, the VSWR alarm adjustment, so that the voltmeter indicates +5 Vdc for a3:1 mismatch.5. Put the 50 ohm load back on again. The voltmeter should read approximately 0 Vdc.6. Disconnect the voltmeter.
3-6VHF Amplifier Instruction Manual VT-3 132 - 174 MHz3.6.2.5 Antenna VSWR Overload1. Disconnect the radio communications test set and so that the amplifier is terminatedwith an open circuit.2. Monitor the current from the +9.5 Vdc supply.3.Adjust R37, the VSWR overload adjustment, clockwise until a noticeable drop in the+9.5 Vdc current occurs.4.Reconnect the radio communications test set and, the +9.5 Vdc current should returnto the previous level.3.6.2.6Procedure Verification1.Verify that the current drawn from the +13.8 Vdc supply is less than 1.5 A and fromthe +9.5 Vdc supply is less than 1.2 A when transmitting full RF output power (8Watts).2. Turn off the power to the transmitter.
DEDANIELSELECTRONICS4-1VHF Amplifier Instruction Manual VT-3 132 - 174 MHz4ILLUSTRATIONS AND SCHEMATIC DIAGRAMSThis Page Intentionally Left Blank
DEFAULT JUMPERVICTORIA B.C .DATE.:DWG No:TITLE:DDANIELS ELECTRONICS BOARD No.:DWG REV DATE:43-932611MARCH 8, 1994COMPONENT NOT INSTALLEDVT-3/150 AMPLIFIER SM LAYOUT (LOW POWER)9326AS149R949R9150p49K91.5uH49K910n10n100n49K949K91K10n10K10K100n10K10n1.5uH331723317227K41K1K49K910K1K49K949K910n10n10K10nF10KMC49K910K10K27K41K1K4K5310K27K4100n10n1nF30R10.18uH0.18uHFB10.18uH1nF100nF18nF18nF18nF18nF4.7uF10nFBYD17J100nF49K9MMBD701MMBD701BC817-25BC817-25MBZ5233BPZT2222APZT2222A50K50K50K50KD6C20R18L6R19C21C19C18R20C22R22R23R24R32R44C24R43R42R35R34U2U3R40C26TL2TL3R16R17D7C25R33L7R39R41Q6R26R27R30R11R9C12C15C17Q4R31R28R29U1R10R5C13C14D1R6R8R7R25Q3Q5R38R37R36R2133172R1C1C2C3C4L1L3L2C918nFQ2D5P06VR4D3D4C6C5MCMCC10C7C8C11JU1JU2JU3JU43K48221KC2310nR1410K150p49K9VT-3/150 AMPLIFIER SM DESIGNATION (LOW POWER)9326AS2BYD17JR2R3178R178RJU5VT-3/150 AMPLIFIER SM LAYOUT (HIGH POWER) 9326AS3 100nF10nFSELECTSELECT1nFSELECTSELECT49K949R9150pF49K91.5uHMMBD701SELECTSELECTD5C16R15R13L5C31C33C29C37C38R12TL1C27C28C32C34VT-3/150 AMPLIFIER SM DESIGNATION (HIGH POWER) 9326AS4SELECTC36COMPONENT INSTALLED ON BOTTOM OF BOARDCOMPONENT MOUNTED ON CASEM2.5 x 6 SCREWM3 x 8 SCREWVT-3/150 AMPLIFIER TH LAYOUT (LOW POWER) M3 x 8 CAP SOCK SCREWNOTE Q1 MOUNTED ON CASE WITH LEADS INSERTED TO BOTTOM OF BOARD150nHL4TL2TL3TL5TL4Q1IRF9540D21N5402VT-3/150LOW PASSFILTER ASSEMBLYVT-3/150 AMPLIFIER TH DESIGNATION (LOW POWER) 9326A5MHW607 SELECT2.2nFC39150nHFB347uFC30+FB2150nH10RL1119nHL8L9L1019nHR45C35SELECTMRF262TL1VT-3/150 AMPLIFIER TH LAYOUT AND DESIGNATION (HIGH POWER) 9326A6M3 x 6 CAP SOCK SCREW4-24.1VT-3/150 VHF Amplifier Component LayoutDEDANIELSELECTRONICS VHF Amplifier Instruction Manual VT-3 132 - 174 MHzVT3AMPM1
R6POWER27k42 - 8 Watts392k2 - 5 WattsPower Range SelectionDEDANIELSELECTRONICSVICTORIA B.C.DEDANIELS ELECTRONICS 4.2 VT-3/150 VHF Amplifier Schematic Diagram TITLE: VT-3/150 VHF AMPLIFIER SCHEMATIC DIAGRAM4-3VHF Amplifier Instruction Manual VT-3 132 - 174 MHzJ2, JU5DWG No: VT3AMPM2A DWG REV DATE: 10 DECEMBER 1995DATE: 4 MARCH 1994FORWARDPOWERALARMC39FORWARDOUTPUT ALARMADJUSTVSWROUTPUT ALARMADJUSTOVERLOAD ADJUSTOUTPUT POWER ADJUSTLB = LOW BANDHB = HIGH BANDU4TL5, TP5R45Q7L11FB3, FIL5D7DWN BY: REX WONGBOARD REV: 1.1BOARD No: 43-932611APRVD:---------------------------------------------UNUSED REFERENCE DESIGNATORSHIGHEST REFERENCE DESIGNATORSVSWRALARM+13.8 VDCLOW / HIGH BANDRF IN (1 mW)SMBJ1RF OUTTYPE N JACKJ210k0R910nFC1550kR7MBZ5233BD14k53R510k0R1010nFC12 DS Q2D5P06VTL5178RR330R1R149k9R4 IN5402D2LPFFIL1AMPLIFIER ENABLE I/PLPFFIL2+9.5 VDCLPFFIL5*+13.8 VDCLPF DS IRF9540Q13k48R8SELR6BYD17JD4178RR2BYD17JD31.5uHL549k9R13150pFC1649k9R12TL1R1549R91k00R3549k9R3410nFC26PZT2222AQ510k0R4450kR36150pFC2549k9R331k00R4227k4R4310nFC23 6 5 87 4MC33172U2b1.5uHL7MMBD701D710k0R11TL249R9R1649R9R1749k9R2210k0R2050kR2149k9R1910nFC21150pFC2049k9R181.5uHL6MMBD701D6BC817-25Q410k0R291k00R2527k4R28BC817-25Q610k0R411k00R39221kR4049k9R2710nFC1749k9R2649k9R30PZT2222AQ310k0R3150kR371k00R38JU1JU41k00R24 2 3 1 U3a 2 3 1 U1a 2 3 1 U2a 6 587 4MC33172U3b100nFC1810nFC19100nFC1310nFC146 5 4 7 8MC33172U1bLPFFIL3 JU2LPFFIL4 JU3100nFC24TL3100nFC1118nFC9180nHL318nFC5 +4.7uFC618nFC4180nHL2180nHL1150nHL418nFC218nFC3MHW 6076MHW607U4FB11nFC1MRF262Q7+13.8 VDC150nHL10150nHL9C3151pF LB/24pF HBFB2SELECTC3556pF LB/220pF HBC38FB3* +47uFC3010nFC28100nFC2719nHL819nHL1147pF LB/43pF HBC3647pF LB/36pF HBC3768pF LB/51pF HBC3310RR45MMBD701D510k0R32TP3TP4TP5TP2TP11nFC8100nFC710nFC1049k9R2310nFC2210k0R1420pF LBC345.6pF LBC321nFC29SWITCHED +9.5VSWITCHED +9.5VTO ALL SWITCHED +9.5VSWITCHED +9.5VSWITCHED +9.5VSWITCHED +9.5V2.2 nFC39 JU52 4 513OVERLOAD
DEDANIELSELECTRONICS4-4VHF Amplifier Instruction Manual VT-3 132 - 174 MHzThis Page Intentionally Left Blank
VHF Amplifier Instruction Manual VT-3 132 - 174 MHz4-54.3VT-3/150 VHF Lowpass Filter Component Layoutinvisible text4.4 VT-3/150 VHF Lowpass Filter Schematic Diagram
4-6VHF Amplifier Instruction Manual VT-3 132 - 174 MHzThis Page Intentionally Left Blank
VHF Amplifier Instruction Manual VT-3 132 - 174 MHz5-15PARTS LISTS5.1 VT-3/150 Amplifier Electrical Parts ListRefDesig Description Part No.C1CAP., SM, 1nF CER, 1206, C0G1008-3B102K1GC2-C5CAP., SM, 18nF CER, 1206, X7R 1008-4B183K5RC6CAP., SM, 4.7µF TANT., 10%, 16V1055-5B475K16C7 CAP., SM, 100nF CER, 1206, X7R 1008-5B104K5RC8CAP., SM, 1nF CER, 1206, C0G1008-3B102K1GC9CAP., SM, 18nF CER, 1206, X7R 1008-4B183K5RC10CAP., SM, 10nF CER, 1206, X7R 1008-4B103K5RC11CAP., SM, 100nF CER, 1206, X7R 1008-5B104K5RC12CAP., SM, 10nF CER, 1206, X7R 1008-4B103K5RC13CAP., SM, 100nF CER, 1206, X7R 1008-5B104K5RC14, C15CAP., SM, 10nF CER, 1206, X7R 1008-4B103K5RC16CAP., SM, 150pF CER, 1206, C0G1008-2B151J1GC17CAP., SM, 10nF CER, 1206, X7R 1008-4B103K5RC18CAP., SM, 100nF CER, 1206, X7R 1008-5B104K5RC19CAP., SM, 10nF CER, 1206, X7R 1008-4B103K5RC20CAP., SM, 150pF CER, 1206, C0G1008-2B151J1GC21-C23CAP., SM, 10nF CER, 1206, X7R 1008-4B103K5RC24CAP., SM, 100nF CER, 1206, X7R 1008-5B104K5RC25CAP., SM, 150pF CER, 1206, C0G 1008-2B151J1GC26CAP., SM, 10nF CER, 1206, X7R 1008-4B103K5RC27CAP., SM, 100nF CER, 1206, X7R 1008-5B104K5RC28CAP., SM, 10nF CER, 1206, X7R 1008-4B103K5RC29CAP., SM, 1nF CER, 1206, C0G1008-3B102K1GC30CAP., 47µF DIP. TANT., 20%, 35V 1054-6M476M35C31 CAP.,SM, 51pF PORCEL., 5% 500V 1036-1B2510J5 (132 - 150 MHz)C31CAP.,SM, 24pF PORCEL., 5% 500V 1036-1B2240J5 (150 - 174 MHz)C32CAP.,SM, 5.6pF PORCEL., ±0.25pF 500V 1036-0B2569C5 (132 - 150 MHz)C32CAP.,SM, NOT INSTALLED NOT INSTALLED (150 - 174 MHz)C33CAP.,SM, 68pF PORCEL., 5% 500V 1036-1B2680J5 (132 - 150 MHz)C33CAP.,SM, 51pF PORCEL., 5% 500V 1036-1B2510J5 (150 - 174 MHz)C34CAP.,SM, 20pF PORCEL., 5% 500V 1036-1B2200J5 (132 - 150 MHz)C34CAP.,SM, NOT INSTALLED NOT INSTALLED (150 - 174 MHz)C35 CAP., 330pF METAL CLAD,1% 250V 1046-2A331FDB (132 - 150 MHz)C35CAP., 270pF METAL CLAD, 1% 250V 1046-2A27TFDB (150 - 174 MHz)C36CAP.,SM, 47pF PORCEL., 5% 500V 1036-1B2470J5 (132 - 150 MHz)C36CAP.,SM, 43pF PORCEL., 5% 500V 1036-1B2430J5 (150 - 174 MHz)C37CAP.,SM, 47pF PORCEL., 5% 500V 1036-1B2470J5 (132 - 150 MHz)C37CAP.,SM, 36pF PORCEL., 5% 500V 1036-1B2360J5 (150 - 174 MHz)C38CAP.,SM, 56pF PORCEL., 5% 500V 1036-1B2560J5 (132 - 150 MHz)C38CAP.,SM, 220pF PORCEL., 5% 200V 1036-2B2221J2 (150 - 174 MHz)C39CAP., 2.2nF FILM, MMK5,10%,63V 1016-3A222K63D1 DIODE, MBZ5233B 6.0V ZENER, SOT-232102-MBZ5233BD2 DIODE, IN5402 3A RECT, DO-201AD2001-1N540200D3, D4 DIODE, BYD17J RECTIFIER, SOD-872101-BYD17J00D5 DIODE, MMBD701 HOT CARRIER, SOT-23 2105-MMBD7010D6, D7 DIODE, MMBD701 HOT CARRIER, SOT-23 2105-MMBD7010
5-2VHF Amplifier Instruction Manual VT-3 132 - 174 MHzRefDesig Description Part No.FB1 FERRITE BEAD, SM, 43 MIX 1812 PKG 1213-43181200FB2, FB3 FERRITE BEAD, 64MIX 3X3.5mm OD 1210-64030350FIL1-FIL5FILTER, EMI PI/5500pF, 8-32 UNC 1302-P552D10DJ1 CONNECTOR, SMB, JACK,2 HOLE FLANGE 5120-J2SC01BGJ2 CONNECTOR, N JACK PANEL MNT, C/SNK 5184-10923011L1-L3 INDUCTOR, SM., 180nH 20%, 1812 1255-2GR1800ML4 CHOKE, RF/MOULD., 150nH 10%, .37 1251-2B00R15KL5 INDUCTOR, SM, 1.5µH 10%, 1812 1255-3G1R500KL6, L7 INDUCTOR, SM, 1.5µH 10%, 1812 1255-3G1R500KL8 COIL, 1.5 TURNS, 18AWG, 3.83mmID 1220-1T501812L9 CHOKE, RF/MOULD., 150nH 10%, .25 1251-2A00R15KL10 CHOKE, RF/MOULD., 150nH 10%, .37 1251-2B00R15KL11 COIL, 1.5 TURNS, 18AWG, 3.83mmID 1220-1T501812LPF1 LPF, ASSEMBLY VT-3/150 AMPLIFIER A21-LPF3/150PCBPCB, VT-3/150 TX AMPLIFIER 4321-15932611Q1MOSFET, IRF9540 P-CHANNEL, TO-220 2044-IRF95400Q2MOSFET, D5P06V P-CHAN., DPAK 2144-D5P06V00Q3TRANSISTOR, PZT2222A NPN, SOT-223 2120-PZT2222AQ4TRANSISTOR, BC817-25 NPN, SOT-23 2120-BC817025Q5TRANSISTOR, PZT2222A NPN, SOT-223 2120-PZT2222AQ6TRANSISTOR, BC817-25 NPN, SOT-23 2120-BC817025Q7TRANSISTOR, MRF262 VHF, TO-220 2025-MRF26200R1RES., SM, 30R1 1206, 1%,100ppm 1150-1B30R1FPR2, R3RES., SM, 178R 1206, 1%,100ppm 1150-2B1780FPR4RES., SM, 49k9 1206, 1%, 100ppm 1150-4B4992FPR5RES., SM, 4k53 1206, 1%, 100ppm 1150-3B4531FPR6RES., SM, 27k4 1206, 1%, 100ppm 1150-4B2742FP(Default)R6RES., SM, 392k 1206, 1%, 100ppm 1150-4B3922FP (Exciter for VT-30)R7POT., SM, 50k 12 TURN, SIDE ADJUST 1172-M30503X5R8RES., SM, 3k48 1206, 1%, 100ppm 1150-3B3481FPR9-R11RES., SM, 10k0 1206, 1%, 100ppm 1150-4B1002FPR12, R13RES., SM, 49k9 1206, 1%, 100ppm 1150-4B4992FPR14RES., SM, 10k0 1206, 1%, 100ppm 1150-4B1002FPR15-R17RES., SM, 49R9 1206, 1%, 100ppm 1150-1B49R9FPR18, R19RES., SM, 49k9 1206, 1%, 100ppm 1150-4B4992FPR20RES., SM, 10k0 1206, 1%, 100ppm 1150-4B1002FPR21POT., SM, 50k 12 TURN, SIDE ADJUST 1172-M30503X5R22, R23RES., SM, 49k9 1206, 1%, 100ppm 1150-4B4992FPR24, R25RES., SM, 1k00 1206, 1%, 100ppm 1150-3B1001FPR26, R27RES., SM, 49k9 1206, 1%, 100ppm 1150-4B4992FPR28RES., SM, 27k4 1206, 1%, 100ppm 1150-4B2742FPR29RES., SM, 10k0 1206, 1%, 100ppm 1150-4B1002FPR30RES., SM, 49k9 1206, 1%, 100ppm 1150-4B4992FPR31, R32RES., SM, 10k0 1206, 1%, 100ppm 1150-4B1002FPR33, R34RES., SM, 49k9 1206, 1%, 100ppm 1150-4B4992FPR35RES., SM, 1k00 1206, 1%, 100ppm 1150-3B1001FPR36, R37POT., SM, 50k 12 TURN, SIDE ADJUST 1172-M30503X5
VHF Amplifier Instruction Manual VT-3 132 - 174 MHz5-3RefDesig Description Part No.R38, R39RES., SM, 1k00 1206, 1%, 100ppm 1150-3B1001FPR40RES., SM, 221k 1206, 1%, 100ppm 1150-5B2213FPR41RES., SM, 10k0 1206, 1%, 100ppm 1150-4B1002FPR42RES., SM, 1k00 1206, 1%, 100ppm 1150-3B1001FPR43RES., SM, 27k4 1206, 1%, 100ppm 1150-4B2742FPR44RES., SM, 10k0 1206, 1%, 100ppm 1150-4B1002FPR45RES., 10R METAL FILM, 5%, 0.5W 1101-1A0100JPTL1 COAX, DIRECTIONAL COUPLER 0.5" 7496-30CR005TTL2, TL3 COAX, DIRECTIONAL COUPLER 0.5" 7496-30CR005TTL5 COAX, CONFORMABLE 31.5mm, 50 OHM, 0.083 7482-5024T083U1-U3I.C., MC33172 DUAL OP AMP, S0-8 2302-33172N08U4AMP, RF,MHW607-1,7W,136-154MHz 2256-MHW60701 (132 - 150 MHz)U4AMP, RF,MHW607-2,7W,146-174MHz 2256-MHW60702 (150 - 174 MHz)5.2 VT-3/150 Low Pass Filter Electrical Parts ListRefDesig Description Part No.C1CAP., SM, 30pF PORCEL., 5%, 500V 1036-1B2300J5C2-C4CAP., SM, 47pF PORCEL., 5%, 500V 1036-1B2470J5C5CAP., SM, 30pF PORCEL., 5%, 500V 1036-1B2300J5L1 COIL, 55nH 3.0 TURNS, 18AWG, 6.70mm ID 1220-3T001822L2, L3 COIL, 60nH 3.0 TURNS, 18AWG, 6.70mm ID 1220-3T001822L4 COIL, 55nH 3.0 TURNS, 18AWG, 6.70mm ID 1220-3T001822PCB PCB, LPF VT-3/150, UT-3/400 AMP 4321-169317125.3 VT-3/150 Amplifier Mechanical Parts ListDescription Part No. Qty.CASE, MT-3 VHF/UHF AMPLIFIER, ALUMINUM 3702-66102130 1HEATSHRINK, 1/8" DIA, RED, 1" LENGTH CONSUMABLE 1INSULATOR, THERM. COND. TO-220 5622-1T220701 1LABEL, MTL/PE, VT-3/150 AMP ID 3508-21002010 1LID, CASE MT-3 AMPLIFIER, ALUMINUM3702-66102151 1 SCREW, M2 X 6, PAN/PHILLIPS,A2 5812-2M0PP06S2SCREW, M2 X 4, PAN/PHIL., S/S5812-2M0PP04S10SCREW, M2.5 X 6, PAN/PHIL., S/S5812-2M5PP06S3SCREW, M3 X 6, FLAT/PHIL., S/S5812-3M0FP06S4SCREW, M3 X 8, PAN/PHIL., S/S5812-3M0PP08S9
5-4VHF Amplifier Instruction Manual VT-3 132 - 174 MHzDescription Part No. Qty.SCREW, M3 X 8, CAP SOCK-M2.5, S/S5812-3M0SA08S 3SCREW, M3 X 8, CAP SOCK-M2.5, S/S5812-3M0SA08S 2SET SCREW, M3 X 3, HEX SOCKET, A2 5817-3M0AC03S 1SHOULDER WASHER, M3 0.24" OD, NYLON 5674-120N2440 1TUBING, TFE-260C, 22AWG,Thin 5mm 7610-260C22TW 1TURRET TERMINAL, 4-40 0.188L, Tn 5053-144M188T 1WIRE, PVC/STRANDED 16AWG, RED, 70 mm 7110-16S26302 1
VHF Amplifier Instruction Manual VT-3 132 - 174 MHz6-16REVISION HISTORYISSUE DATE REVISION1 Jul 97 First Issue.
6-2VHF Amplifier Instruction Manual VT-3 132 - 174 MHzISSUE DATE REVISION
MT-3 RADIO SYSTEMSENHANCED AM/FMSYNTHESIZERINSTRUCTION MANUALOS(R/T)-3(A/H) 29 - 470 MHzCovers models:OST-3H035, OST-3H045, OSR-3H061OST-3A128, OSR-3A149OST-3H141, OST-3H162, OSR-3H141, OSR-3H162OST-3H440, OSR-3H440Copyright © 2000 Daniels Electronics Ltd. All rights reserved. No part of this publication may be reproduced, stored in aretrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording orotherwise, without the prior written consent of Daniels Electronics Ltd.DE™ is a registered trademark of Daniels Electronics Ltd. registered in the United States Patent and Trademark Office.Issue: 4 Previous Issue: 3Issue Date:September 2000 Previous Issue Date: March 2000 Daniels Electronics Ltd.Printing Date: January 2001Victoria, BC.Part No.: IM10-OS3AH PRINTED IN CANADA
iiEnhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHzNOTE:The user's authority to operate this equipment could be revoked through anychanges or modifications not expressly approved by Daniels Electronics Ltd.The design of this equipment is subject to change due to continuous development.The equipment covered by this manual may incorporate minor changes in detailfrom the information contained in this manual.
Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHziiiTABLE OF CONTENTS Page1 GENERAL...................................................................................................................1-11.1Introduction....................................................................................................1-11.2 OS(R/T)-3(A/H) Enhanced Synthesizer Family Models ................................1-11.3Performance Specifications.............................................................................1-31.4 Printed Circuit Board Numbering Convention................................................1-52 THEORY OF OPERATION........................................................................................2-12.1Internal Power and Control (Digital Board)....................................................2-12.2 Synthesizer Analog Circuitry (Analog Board)................................................2-12.2.1 Common Analog Board Circuitry.......................................................2-12.2.2 29 - 71.4 MHz Analog Board Circuitry..............................................2-32.2.3 118 - 159.4 MHz Multichannel AM Analog Board Circuitry.............2-32.2.4 128 - 174 MHz Analog Board Circuitry.............................................2-42.2.5 406 - 470 MHz Analog Board Circuitry.............................................2-52.3 Synthesizer Digital Circuitry (Digital Board)..................................................2-62.4 Frequency Control..........................................................................................2-62.4.1 BCD Switch Frequency Control.........................................................2-62.4.2 Frequency Select Handle Frequency Control......................................2-72.5 Synthesizer Base and Frequency Increment Table..........................................2-72.6 5.0/6.25 kHz Channelization...........................................................................2-82.7 8.333 kHz Channelization...............................................................................2-82.8 12.5 kHz Channelization.................................................................................2-93 SYNTHESIZER ALIGNMENT..................................................................................3-13.1 General...........................................................................................................3-13.2 Repair Note.....................................................................................................3-13.3Recommended Test Equipment.......................................................................3-13.4 OS(R/T)-3(A/H) Synthesizer Factory Configuration......................................3-13.5 OS(R/T)-3(A/H) Synthesizer Alignment........................................................3-23.5.1 General...............................................................................................3-23.5.2 Synthesizer Test Points.......................................................................3-23.5.3 Synthesizer Removal and Installation..................................................3-33.5.4Circuit Board Removal........................................................................3-33.5.5 Frequency Adjustment and Channel Selection....................................3-33.5.5.1 VHF OS(R/T)-3H 29 - 71.4 MHz VCO Alignment...............3-43.5.5.2 VHF OS(R/T)-3A 118 - 159.4 MHz Alignment.....................3-53.5.5.3 VHF OS(R/T)-3H 128 - 174 MHz VCO Alignment..............3-53.5.5.4 UHF OS(R/T)-3H 406 - 470 MHz VCO Alignment..............3-63.5.5.5Reference Frequency Alignment.............................................3-63.5.6 Jumper Configuration.........................................................................3-7
ivEnhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz4 ILLUSTRATIONS AND SCHEMATIC DIAGRAMS..............................................4-14.1 OS(R/T)-3H 29 - 71.4 MHz Analog Board Diagrams...................................4-14.1.1 OS(R/T)-3H 29 - 71.4 MHz Analog Board Component Layout (Bottom)4-14.1.2 OS(R/T)-3H 29 - 71.4 MHz Analog Board Component Layout (Top) 4-24.1.3 OS(R/T)-3H 29 - 71.4 MHz Analog Board Schematic Diagram........4-34.2 OS(R/T)-3A 118 - 159.4 MHz Analog Board Diagrams................................4-54.2.1 OS(R/T)-3A 118 - 159.4 MHz Analog Board Component Layout (Bottom)4-54.2.2 OS(R/T)-3A 118 - 159.4 MHz Analog Board Component Layout (Top)4-64.2.3 OS(R/T)-3A 118 - 159.4 MHz Analog Board Schematic Diagram....4-74.3 OS(R/T)-3H 128 - 174 MHz Analog Board Diagrams..................................4-94.3.1 OS(R/T)-3H 128 - 174 MHz Analog Board Component Layout (Bottom)4-94.3.2 OS(R/T)-3H 128 - 174 MHz Analog Board Component Layout (Top)4-104.3.3 OS(R/T)-3H 128 - 174 MHz Analog Board Schematic Diagram.......4-114.4 OS(R/T)-3H 406 - 470 MHz Analog Board Diagrams..................................4-134.4.1 OS(R/T)-3H 406 - 470 MHz Analog Board Component Layout (Bottom)4-134.4.2 OS(R/T)-3H 406 - 470 MHz Analog Board Component Layout (Top)4-144.4.3 OS(R/T)-3H 406 - 470 MHz Analog Board Schematic Diagram.......4-154.5 OS(R/T)-3(A/H) Digital Board Diagrams......................................................4-174.5.1 OS(R/T)-3(A/H) Digital Board Component Layout (Bottom)............4-174.5.2 OS(R/T)-3(A/H) Digital Board Component Layout (Top).................4-184.5.3 OS(R/T)-3(A/H) Digital Board Schematic Diagram...........................4-195 PARTS LISTS.............................................................................................................5-15.1 OS(R/T)-3H 29 - 71.4 MHz Analog Board Electrical Parts List....................5-15.2 OS(R/T)-3A 118 - 159.4 MHz Analog Board Electrical Parts List.................5-55.3 OS(R/T)-3H 128 - 174 MHz Analog Board Electrical Parts List...................5-85.4 OS(R/T)-3H 406 - 470 MHz Analog Board Electrical Parts List...................5-115.5 OS(R/T)-3(A/H) Digital Board Electrical Parts List.......................................5-145.6 OS(R/T)-3(A/H) Synthesizer Mechanical Parts List.......................................5-156 REVISION HISTORY.................................................................................................1
Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz 1-11. GENERALThis is hidden text.1.1 IntroductionThe OS-3A/H Synthesizer is a compact, fully shielded and environmentally rugged frequencysynthesis module that is the nucleus of every MT-3 synthesized Receiver and Transmitter radiomodule. The OS-3A/H generates a high stability, low distortion radio frequency signal in one ofseveral frequency bands, including 29 - 50 MHz, 118 - 159.4 MHz, 118 - 174 MHz and406 - 470 MHz. The OS-3A/H utilizes an internal temperature compensated 9.6 MHz reference toproduce a signal stable to ±1 ppm within the temperature range of -40°C to +60°C. Alternately, theOS-3A/H can be disciplined by an external 9.6 MHz or 10 MHz reference of higher stability. TheOS-3A/H Synthesizer Module is manufactured in twelve distinct models which cover three primaryfrequency bands (see section 1.2 below). All synthesizer modules are designed to be easilyremoved for programming, calibration and/or repair. The synthesizer circuitry is distributedbetween two printed circuit boards (PCBs) which are isolated yet interconnected via photo-logicoptical transceivers that effectively eliminate residual electrical noise between digital and analogcircuitry. Further shielding of the synthesizer’s RF filter circuitry is provided by an internalshielded enclosure.1.2 OS(R/T)-3(A/H) Enhanced Synthesizer Family ModelsThe OS-3A/H Synthesizer Module is utilized in both the MT-3 Receiver and Transmitter productlines. In MT-3 Transmitters, the OS-3A/H synthesizer provides a modulated, low-level RF signalto the Power Amplifier module. In MT-3 Receivers, the OS-3A/H synthesizer provides a low noiselocal oscillator (LO) signal that either directly drives the mixer circuitry or first drives a bufferamplifier which precedes the mixer circuitry (if a higher LO drive signal is required for enhancedintermodulation capability). There are twelve distinct models within the OS-3A/H EnhancedSynthesizer Family. Note that this manual provides service and operating information for all twelvesynthesizer modules. It is extremely important to establish the correct synthesizer model number,as documentation is model-specific. The model number can be found on the synthesizer label,located on the synthesizer module top cover.The twelve synthesizer models that comprise the OS-3A/H Synthesizer family are follows:Frequency Band: 29 - 50 MHz, Common OS-3H0xx Analog Board• OST-3H035 - installed in FM transmitter, 29 - 38 MHz RF output.• OST-3H045 - installed in FM transmitter, 38 - 50 MHz RF output.• OSR-3H061 - installed in FM receiver, 50.4 - 71.4 MHz RF output.
1-2Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHzFrequency Band: 118 - 159.4 MHz, AM Multichannel OS-3H1xx Analog Board• OST-3A128 - installed in AM transmitter, 118 - 138 MHz RF output.• OSR-3A149 - installed in AM receiver, 139.4 - 159.4 MHz RF output.Frequency Band: 128 - 174 MHz, Common OS-3H1xx Analog Board• OST-3H141 - installed in FM transmitter, 128 - 152.6 MHz RF output.• OST-3H162 - installed in FM transmitter, 150 - 174 MHz RF output.• OSR-3H141 - installed in FM receiver, 128 - 152.6 MHz RF output.• OSR-3H162 - installed in FM receiver, 150 - 174 MHz RF output.Frequency Band: 406 - 470 MHz, Common OS-3H4xx Analog Board• OST-3H418 - installed in FM transmitter, 406 - 430 MHz RF output.• OST-3H460 - installed in FM transmitter, 450 - 470 MHz RF output• OSR-3H440 - installed in FM receiver, 427.4 - 451.4 MHz RF output.All OS-3A/H Enhanced Synthesizer Modules, regardless of the frequency band, use the samedigital PCB and mechanical construction. There are, however, significant differences between thevarious models when it comes to the analog PCB. There are four different analog PCBs, designedto cover the four frequency bands of 29 - 50 MHz, 118 - 159.4 MHz, 128 - 174 MHz and406 - 470 MHz. Each model’s specific sub-band of operation within a given frequency band isdetermined through SELECT components on the corresponding analog board.
Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz 1-31.3 Performance SpecificationsType:Narrow band FM, Single loop synthesizer module utilizing low noise VCO and PLL technology.Compatible with Daniels MT-3 series Transmitter and Receiver modules.Frequency Range:29 MHz - 38 MHz [±0.5 MHz] (OST-3H035)(Tuning range with no adjustment 38 MHz - 50 MHz [±1.0 MHz] (OST-3H045)is shown in [ ] brackets.) 50.4 MHz - 71.4 MHz [±1.0 MHz] (OSR-3H061)118 MHz -138 MHz [Full band] (OST-3A128)128 MHz - 152.6 MHz [±2.0 MHz] (OST-3H141, OSR-3H141)139.4 MHz - 159.4 MHz [Full band] (OSR-3A149)150 MHz - 174 MHz [±2.0 MHz] (OST-3H162, OSR-3H162)406 MHz - 430 MHz [Full band] (OST-3H418)427.4 MHz - 451.4 MHz [Full band] (OSR-3H440)450 MHz - 470 MHz [Full band] (OST-3H460)Output Power:+5 dBm ±2 dBm into 50ΩHarmonics:<-30 dBcSpurious:<-90 dBc<-70 dBc above 400 MHzAttack Time:<10 ms (Normal Mode)<50 ms (Low Current Standby Mode)Hum and Noise: -55 dB
1-4Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHzModulation Sensitivity:3.0 kHz peak deviation (400 mVrms input)External Reference Input:External reference input signal via SMB connector J1Input level 0 dBm ±3 dBInput impedance 50ΩInput frequency 10.0 MHz or 9.6 MHz (selectable throughdigital board jumper JU1)Power Requirements:Normal Configuration:+9.5 Vdc @ 160 mA for FM and 65 mA for AMLow Current Standby Mode (TCXO enabled):+9.5 Vdc @ 14 mA for FM and 4 mA for AM
Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz 1-51.4 Printed Circuit Board Numbering ConventionTo expedite troubleshooting and maintenance procedures, Daniels Electronics Ltd. has adopted aprinted circuit board (PCB) numbering convention in which the last two digits of the circuit boardnumber represent the circuit board version. All PCB's manufactured by Daniels Electronics Ltd.are identified by one of the following numbering conventions:• PCB number 43-912010indicates circuit board version 1.0; or• PCB number 50002-02indicates circuit board version 2.0
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Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz 2-12. THEORY OF OPERATIONThis is hidden text.2.1 Internal Power and Control (Digital Board)Refer to "OS(R/T)-3(A/H) Digital Board Schematic Diagram" on page 4-19 of this manual. Thesynthesizer operates from a +9.5 Vdc power source applied to connector pin P1-2. Total currentdraw is approximately 160 mA for FM synthesizers and 65 mA for AM synthesizers. POWERDOWN control line P2-4 controls the +5.0 Vdc microcontroller regulator U2 through powerMOSFET switch U1. For receiver applications the synthesizer is always ON, with the enable lineP2-4 directly connected to +9.5 Vdc. For transmitter applications, pin P2-4 is controlled by MT-3Transmitter Board jumper J18 which selects the synthesizer standby mode. In Low CurrentStandby Mode, less than 14 mA current is drawn (for FM, < 4 mA for AM) however, a delay ofapproximately 50 ms from PTT activation to transmitter turn is then required to allow forsynthesizer lock time. In Normal Mode, with the synthesizer ON continuously, less than 10 msdelay is encountered. This capability comes at the expense of additional standby current (160 mAfor FM, 65 mA for AM).2.2 Synthesizer Analog Circuitry (Analog Board)There are four separate analog circuit boards covering the four frequency bands of 29 - 50 MHz,118 - 159.4 MHz, 128 - 174 MHz and 406 - 470 MHz respectively. All four analog boards aresimilar in operation and circuit topology with the VCO, Loop Filter and Output Low-pass Filtersections being band specific.2.2.1 Common Analog Board CircuitryThis section describes the circuitry common to all versions of the FM Synthesizer Analog Board.The Analog Board utilizes four optical receivers (U1 - U4) and one optical transmitter (U5) toprovide an isolated data interface to the digital board. In normal operating modes, +9.5 VdcRegulator IC U8 provides continuous +5.0 Vdc to the internal TCXO and power control opticalreceiver U1. This results in a standby current level of ≈ 14 mA for FM and 4 mA for AM.Primary power is controlled through activation of optical receiver U1 under control of the digitalboard micro controller U4. Regulator U6 provides switched +8.0 Vdc with regulator U7 providingswitched +5.0 Vdc to all analog supply points. Power MOSFET IC U9 works as a clampingcircuit to quickly discharge VCO filter capacitors C32 and C33 when powered down, resulting inimmediate suppression of RF output from the VCO.The heart of the OS-3A/H Enhanced Synthesizer is U10 - a low power, single chip synthesizer IC.A 9.6 MHz reference signal is provided either from the internal TCXO (JU1-B Analog Board) orfrom an external source via SMB connector J1 with jumper JU1-A (Analog Board) and jumperJU2 (AM Analog Board only) installed. The external reference source may be 9.6 MHz or
2-2Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz10.0 MHz and is selected via jumper JU2 on the Digital Board (9.6 MHz with JU2 not installed,10.0 MHz with JU2 installed). If an external signal is used as the reference source, it must be asinusoidal, low phase noise, high stability signal of 0 dBm ±3 dB level. A poor quality referencesource will degrade receiver /transmitter performance to unacceptable levels. Transistor Q2 forms abuffer amplifier having 50Ω input impedance at 10.0 MHz. The internal 9.6 MHz TCXO providesbetter than ±1 ppm frequency stability from -30°C to +60°C (-40°C to +60°C optional). Finefrequency adjustment is made through frequency control potentiometer RV1, which is accessiblethrough the synthesizer top cover.The 9.6 MHz reference source is divided down to establish a channel selection step size of 5.0/6.25,12.5, or 25.0 kHz depending on the particular synthesizer model type. A third order passive loopfilter comprised of C37, C38, C39, C45, C49, R36 and R32 is employed to achieve the requirednoise performance, modulation and worst case switching time of 50 ms. A small sample of RFenergy is coupled from the VCO output buffer U16 on the FM analog board or from Q6 on theAM analog board to the synthesizer IC U10 prescaler input (pin 11). FM modulation of the VCOfrom ≈ 100 Hz to 3 kHz is achieved through the baseband input pin P1-1 on the Digital Board. A1 kHz sine wave with a level of approximately 400 mVrms at P1-1 provides FM deviation of3.0 kHz. SMB connector J2 provides an RF output level of approximately +5 dBm into a 50Ωload.An optional modulation input is provided through connector P1-18 (Digital Board) and routed tothe Analog board via connector P3. This connection must be coupled to a low impedance, dccoupled source and provides a phase modulated bandwidth from 0 Hz (DC) to ≈ 50 Hz (PLL loopfilter bandwidth) allowing for specialized applications such as paging or trunking where a separatelow frequency digital/analog modulation channel is required. Phase modulation input pin P1-18 isrouted to the transmitter audio processor spare pin P4-2 via JA4-2 on the MT-3 transmitter mainboard. It should be noted that any application of the direct TCXO modulation port transfers controlof the synthesizer steady state frequency setting to the external modulating source. Frequencycontrol potentiometer RV1 is then effectively removed from the frequency adjust circuitry.A lock detect LED (LED1) indicates an unlocked PLL condition. An unlocked PLL conditionnormally indicates that the VCO is not tuned within the lock-in range of the desired channelfrequency. In a transmitter, the loss of lock will prevent PTT from keying the power amplifiermodule, thus preventing transmission of a spurious output signal. Adjustment of tuning capacitorC24 will normally reestablish frequency lock within the synthesizer’s frequency range. Opticaltransmitter U5 is additionally activated in unlocked conditions and enables the micro-controller(Digital Board) to respond to the unlocked PLL condition. Note that the 118 - 159.4 MHz and the406 - 470 MHz Analog Boards do not incorporate a VCO tuning capacitor; the VCO covers the fullfrequency range without tuning. An unlocked condition in either of these synthesizers wouldindicate an attempt to synthesize an invalid channel frequency outside the installed VCO frequencyrange.
Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz 2-32.2.2 29 - 71.4 MHz Analog Board CircuitryRefer to the "OS(R/T)-3H 29 - 71.4 MHz Analog Board Schematic Diagram" on page 4-3 of thismanual.Field effect transistor Q5 forms part of the negative resistance VHF amplifier oscillator that is tunedon-frequency by the combination of resonator L5 and the total capacitive reactance presented acrossL5 through capacitors C62, C63, C64, C23 (Select), variable capacitor C24 and varactor diodes D1and D2. Fine frequency adjustment is obtained via multi-turn trimmer capacitor C24 in conjunctionwith coarse frequency jumper selections JU2, JU3 and JU4. Select capacitor values are chosen toposition the operating frequency in one of three bands: 29 - 38 MHz, 38 - 50 MHz or50.4 - 71.4 MHz. Varactor diodes D1 and D2 provide oscillator frequency control. PLL feedbackcontrol voltage, at the output of the low-pass loop filter, controls the VCO frequency through thereverse biasing of varactor diodes D1 and D2. The PLL control voltage can range between ≈+1.0 Vdc and +7.0 Vdc and is nominally set to ≈ +4.5 Vdc at the synthesizer centre frequency.Setting of the PLL control voltage set point (TP4) is achieved by adjusting fine frequency variablecapacitor C24 combined with binary weighted lumped capacitor coarse frequency jumpers (JU2,JU3, JU4). External baseband frequency modulation is provided through connection P1 and avoltage divider network formed by R21 and R22. A large signal division ratio, established by theresistive dividers R21 and R22, allows low deviation (less than 5 kHz) direct frequency modulationof the VCO output signal.The PLL low-pass filter is formed by SELECT components C37, C38, C39, C45, R32 and R36.The loop filter response is optimized for switching time, noise and modulation requirementsspecific to each sub-band within the 29 - 71.4 MHz frequency range. The SELECT components(including the loop filter) can be found in tabular format on the VHF OS-3H 29 - 71.4 MHzAnalog Board Schematic diagram.RF output power is taken from the source of Q5 and amplified/buffered by U11. U15 providesfurther amplification and isolation while delivering ≈ +10 dBm into a six-pole low-pass/notchoutput filter formed by C53, C57, C58, C59, L11 and L13. The six pole output filter, with a cutofffrequency of 50 MHz (OST-3H035, OST-3H045 TX) or 80 MHz (OSR-3H061 RX) effectivelyeliminates output harmonics. SMB connector J2 provides interconnection to the companiontransmitter or receiver with an output level of ≈ +5 dBm.2.2.3 118 - 159.4 MHz Multichannel AM Analog Board CircuitryRefer to the "OS(R/T)-3H 118 - 159.4 MHz Analog Board Schematic Diagram" on page 4-7 ofthis manual.Field effect transistor Q5 forms part of the negative resistance VHF amplifier oscillator that is tunedon-frequency by the combination of resonator L5 and the total capacitive reactance presented acrossL5 through capacitors C40 and/or C23 (SELECT), varactor diodes D6, D7 and varactor diodes D1
2-4Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHzand D2. Coarse frequency adjustment is provided by varactor diodes D6, D7. SELECT capacitorvalues C40 and/or C23 are chosen to position the operating frequency in one of two bands;118 - 138 MHz or 139.4 - 159.4.MHz. Varactor diodes D1 and D2 provide fine oscillatorfrequency control. PLL feedback control voltage, at the output of the low-pass loop filter, controlsthe VCO frequency through the reverse biasing of diodes D1 and D2. The PLL control voltage canrange between ≈ +1.0 Vdc and +4.7 Vdc and is nominally set to ≈ +3.3 Vdc for all synthesizerfrequencies. Setting of the PLL control voltage set point (TP4) is achieved by adjusting thecapacitance of varactor diodes D6 and D7, which are controlled by microcontroller U18 throughdigital-to-analog converter U17. Microcontroller U18 controls the output of the PLL Low-passFilter and adjusts the output voltage of the D/A converter so that PLL control voltage set point(TP4) is approximately 3.3Vdc at all synthesizer frequencies. The microcontroller then goes tosleep in a low-power mode.The PLL low-pass filter is formed by SELECT components C37, C38, C39, C45, R32 and R36.The loop filter response is optimized for switching time, noise and modulation requirementsspecific to each sub-band within the 118 - 159.4 MHz frequency range. SELECT components(including the loop filter) can be found in tabular format on the VHF OS(R/T)-3(A/H)118 - 159.4 MHz Analog Board Schematic diagram.RF output power is taken from the source of Q5 and amplified/buffered by Q6. U11 providesfurther amplification and isolation while delivering ≈ +10 dBm into a five-pole low-pass outputfilter formed by C53, C58, C59, L11 and L12. The five-pole low-pass output filter, with a cutofffrequency of 190 MHz, effectively eliminates output harmonics. SMB connector J2 providesinterconnection to the companion transmitter or receiver with an output level of ≈ +5 dBm.2.2.4 128 - 174 MHz Analog Board CircuitryRefer to the "OS(R/T)-3(A/H) 128 - 174 MHz Analog Board Schematic Diagram" on page 4-11 ofthis manual.Field effect transistor Q5 forms part of the negative resistance VHF amplifier oscillator that is tunedon-frequency by the combination of resonator L5 and the total capacitive reactance presented acrossL5 through capacitors C40 and/or C23 (SELECT), variable capacitor C24 and varactor diodes D1and D2. Fine frequency adjustment is obtained via multi-turn trimmer capacitor C24. SELECTcapacitor values C40 and/or C23 are chosen to position the operating frequency in one of twobands; 128 - 152.6 MHz or 150 - 174 MHz. Varactor diodes D1 and D2 provide oscillatorfrequency control. PLL feedback control voltage, at the output of the low-pass loop filter, controlsthe VCO frequency through the reverse biasing of diodes D1 and D2. The PLL control voltage canrange between ≈ +1.0 Vdc to +7.0 Vdc and is nominally set to ≈ +4.5 Vdc at the synthesizer centrefrequency. Setting of the PLL control voltage set point (TP4) is achieved by adjusting finefrequency variable capacitor C24. External baseband frequency modulation is provided throughconnector P1 and a voltage divider network formed by R21 and R22. A large signal division ratio,
Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz 2-5established by the resistive dividers R21 and R22, allows low deviation (less than 5 kHz) directfrequency modulation of the VCO output signal.The PLL low-pass filter is formed by SELECT components C37, C38, C39, C45, R32 and R36.The loop filter response is optimized for switching time, noise and modulation requirementsspecific to each sub-band within the 128 - 174 MHz frequency range. The SELECT components(including the loop filter) can be found in tabular format on the VHF OS(R/T)-3(A/H)128 - 174 MHz Analog Board Schematic diagram.RF output power is taken from the source of Q5 and amplified/buffered by U11. U15 providesfurther amplification and isolation while delivering ≈ +10 dBm into a five pole low-pass outputfilter formed by C53, C58, C59, L11 and L12. The five-pole low-pass output filter, with a cutofffrequency of 190 MHz, effectively eliminates output harmonics. SMB connector J2 providesinterconnection to the companion transmitter or receiver with an output level of ≈ +5 dBm.2.2.5 406 - 470 MHz Analog Board CircuitryRefer to the "OS(R/T)-3H 406 - 470 MHz Analog Board Schematic Diagram" on page 4-15 of thismanual.The UHF OS(R/T)-3H 406 - 470 MHz synthesizer employs an integrated surface mount VCOmodule (U17) capable of full frequency band coverage. Two VCO modules are used to cover the406 - 470 MHz frequencies in the Transmitter module and the 427.4 - 451.4 MHz frequencies inthe Receiver module. The VCO modules are optimized for low phase noise, however the transmitterVCO is additionally configured with modulation input capability. PLL feedback control voltage, atthe output of the low-pass loop filter, controls the VCO frequency through pin 2;the modulationinput (Mod I/P) port. The PLL control voltage can range between ≈ +1.0 Vdc and +7.0 Vdcdepending on the selected operating frequency. External baseband frequency modulation isprovided through connector P1 and VCO Mod input pin 6.The PLL low-pass filter is formed by SELECT components C37, C38, C39, C45, R32 and R36.The loop filter response is optimized for switching time, noise and modulation requirementsspecific to each sub-band within the 406 - 470 MHz frequency range. The SELECT components(including the loop filter and VCO type) can be found in tabular format on the UHF OS(R/T)-3H406 - 470 MHz Analog Board Schematic diagram.RF output power is taken from the VCO RF output and amplified/buffered by U11. U15 providesfurther amplification and isolation while delivering ≈ +10 dBm to a five pole low-pass output filterformed by C53, C58, C59, L11 and L12. The five-pole low-pass output filter, with a cutofffrequency of 530 MHz, effectively eliminates output harmonics. SMB connector J2 providesinterconnection to the companion transmitter or receiver with an output level of ≈ +5 dBm.
2-6Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz2.3 Synthesizer Digital Circuitry (Digital Board)Refer to the "OS(R/T)-3(A/H) Digital Board Schematic Diagram" on page 4-19 of this manual.Microcontroller U4 generates control signals utilized within the synthesizer module. U4communicates with synthesizer IC U10, monitors the synthesizer lock detect, manages PTT inputand output and determines the operating frequency by reading channel number information fromeither the four rotary Binary Coded Decimal (BCD) switches mounted on the main Transmitter andReceiver PCB, or by reading four externally driven CHANNEL SELECT lines. MicrocontrollerU4 is also designed to communicate with Daniels SYNTHESIZER CHANNEL PROGRAMMER(CP-SC-3) through I/O lines TX DATA (P1-17), RX DATA (P1-9) and BOOTSTRAP (P2-2).This external programmer places the operating program in non-volatile microprocessor memoryand programs up to 15 user defined channel selections. An internal "watchdog" timer providesrobust software protection in all operating modes.Data communication between the digital and analog circuit boards is achieved through four opticaltransmitters (U5 through U8) and one optical receiver (U9). The optical interface provides a fullyisolated inter-board data communications link designed to prevent digital noise from interferingwith sensitive PLL circuitry.2.4 Frequency ControlThis is hidden text.2.4.1 BCD Switch Frequency ControlSelection of the desired synthesizer output frequency is straightforward. If all four of theCHANNEL SELECT lines (CHAN SEL3 - CHAN SEL0) are pulled low (to GND), thesynthesizer will scan the four BCD switches (FSW1 - FSW4) located on the receiver andtransmitter main circuit boards via connections SW1 COM - SW4 COM and PC4 - PC7 andestablish the operating frequency from these switches. The four CHANNEL SELECT lines,CHAN SEL3 - CHAN SEL0, are connected via the MT-3 transmitter or receiver main boardmodule connector to the M3 motherboard subrack. These lines are by default normally pulled low(to GND) via jumpers located on the M3 motherboard subrack. If any one of the CHANNEL SELECT lines are pulled high (to +9.5 Vdc), then the synthesizer’sfrequency of operation will be determined by the CHANNEL SELECT lines and not the BCDswitches. Up to 15 separate channel frequencies can be pre-programmed into a ‘table’ in non-volatile microprocessor memory and accessed through binary interpretation of the CHANNELSELECT lines. The most significant bit (MSB) in the CHANNEL SELECT binary code isrepresented by CHAN SEL3 and the least significant bit (LSB) is represented by CHAN SEL0.For example, if all CHANNEL SELECT lines are pulled high, (i.e. binary ‘1111’) then the 15thfrequency entry in the internal channel table will be selected. The channel table is normally pre-programmed at the factory to user specifications, but may be programmed in the field using DanielsSYNTHESIZER CHANNEL PROGRAMMER (CP-SC-3).
Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz 2-7In transmitters, the synthesizer operating frequency is the transmitter operating frequency; however,for receivers, an IF Offset correction factor must be added to or subtracted from the synthesizeroperating frequency in order to determine the actual receive frequency. For VHF and UHFReceivers, the IF Offset correction factor is 21.4 MHz, while for 800 and 900 MHz Receivers it is45 MHz. Refer to Channel Designation Table documentation for simplified channel number andfrequency information.2.4.2 Frequency Select Handle Frequency ControlIn AM Receiver and Transmitter modules so equipped, the Frequency Select Handle (FSH)replaces the normal Front Panel handle and allows direct Front Panel selection of the operatingfrequency. Operation of the FSH is enabled by setting all external CHANNEL SELECT lines to‘1111’ (i.e. all lines jumpered to +9.5 Vdc). The FSH user interface consists of three pushbuttonsplus an 8-digit dot matrix display. The FSH module communicates with the synthesizer through astandard 2-wire serial interface (9600 Baud, 8 bits, no parity, 1 stop bit) using simple ASCIIcommand protocols. On power up or on any key press, the synthesizer is interrogated by the FSHfor the current channel number and corresponding channel frequency, and this information is thenbriefly displayed on the FSH display. The frequency may be either incremented or decrementedfrom the displayed value by pressing the Frequency Increase È or Frequency Decrease Íbutton, as appropriate. For more detailed operating information, refer to the "Frequency SelectHandle Instruction Manual".2.5 Synthesizer Base and Frequency Increment TableThe OS-3A/H Synthesizer operates in frequency increments of 5.0/6.25 kHz, 12.5 kHz or 25 kHzdepending on the particular model and band of operation. The Base Frequency for any givensynthesizer model is the lowest frequency generated.Model Number Freq. Range Base Frequency Freq. IncrementOST-3H035 29 - 38 MHz 29 MHz 5.0/6.25 kHzOST-3H045 38 - 50 MHz 29 MHz 5.0/6.25 kHzOSR-3H061 50.4 - 71.4 MHz 50.4 MHz 5.0/6.25 kHzOST-3A128 118 - 138 MHz 118 MHz 25/8.333 kHzOSR-3A149 139.4 - 159.4 MHz 139.4 MHz 25/8.333 kHzOST-3H141 128 - 152.6 MHz 128 MHz 5.0/6.25 kHzOST-3H162 150 - 174 MHz 150 MHz 5.0/6.25 kHzOSR-3H141 128 - 153 MHz 128 MHz 5.0/6.25 kHzOSR-3H162 150 - 174 MHz 150 MHz 5.0/6.25 kHzOST-3H418 406 - 430 MHz 406 MHz 12.5 kHzOST-3H460 450 - 470 MHz 406 MHz 12.5 kHzOSR-3H440 427.4 - 451.4 MHz 427.4 MHz 12.5 kHz
2-8Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz2.6 5.0/6.25 kHz Channelization.All Daniels VHF synthesizers (excluding AM synthesizers) have been designed to generatefrequencies in both 5.0 kHz and 6.25 kHz channel increments. BCD channel switch settings from0000 to 4999 will therefore select operating frequencies with 5.0 kHz increments, while BCDswitch settings from 5000 to 9999 will select operating frequencies with 6.25 kHz increments.Calculation of the operating frequency for VHF synthesizers capable of 5.0/6.25 kHzchannelization is determined as follows:•BCD switch settings from 0000 to 4999: Multiply the switch setting by 5.0 kHz and addthe result to the synthesizer base frequency.Example: An OST-3H141 synthesizer has a base frequency of 128 MHz. Theselected channel number is 0988. The synthesizer output frequency is:((988 x 5 kHz) + 128 MHz) = 132.940 MHz•BCD switch settings from 5000 to 9999: Subtract 5000 from the switch setting. Multiplythe result by 6.25 kHz and add the result to the synthesizer base frequency.Example: An OSR-3H162 synthesizer has a base frequency of 150 MHz. Theselected channel number is 7205. The synthesizer output frequency is:((7205-5000) x 6.25 kHz) + 150 MHz) = 163.78125 MHz2.7 8.333 kHz Channelization.Daniels AM synthesizers have been designed to generate frequencies in 8.333 kHz increments. InNorth America, AM channels and operating frequencies are allocated in triples of 8.333 kHz(i.e. 25 kHz steps). The operating frequency for synthesizers having 8.333 kHz channelization isdetermined as follows:•Multiply the BCD switch setting by 8.333 kHz and add the result to the synthesizer basefrequency.Example: An OST-3A128 synthesizer has a base frequency of 118 MHz. Theselected channel number is 0231. The synthesizer output frequency is:[(1200 x 8.333 kHz) + 118 MHz] = 128.000 MHz
Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz 2-92.8 12.5 kHz Channelization.The operating frequency for Synthesizers having 12.5 kHz channelization is determined as follows:•Multiply the BCD switch setting by 12.5 kHz and add the result to the synthesizer basefrequency.Example: An OST-3H418 synthesizer has a base frequency of 406 MHz. Theselected channel number is 1660. The synthesizer output frequency is:((1660 x 12.5 kHz) + 406 MHz) = 426.7500 MHz
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Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz 3-13. SYNTHESIZER ALIGNMENTThis is hidden text.3.1 GeneralOS(R/T)-3(A/H) enhanced synthesizer alignment is simplified by using a Type 84 subrack and RFextender card/cable of providing receiver or transmitter power and signal interconnection.Alternately, +9.5 Vdc may be directly connected to a receiver or transmitter module with the positiveconnection on pins B6 / Z6 and the negative connection on pins B30 / Z30 / B32 / Z32. Receiverbalanced audio (600 Ω) is available at pins B26 and Z26.3.2 Repair NoteThe OS(R/T)-3(A/H) synthesizer employs a large number of surface mount components. Removaland/or replacement of surface mount components should never be performed using an ordinarysoldering iron but should only be performed at surface mount rework and repair stations equippedwith Electro Static Dissipative (ESD) protection.When removing Surface Mount Solder Jumpers, it is recommended that solder wick braid be usedin lieu of vacuum type de-soldering tools to help prevent damage to the printed circuit boards.3.3 Recommended Test EquipmentAlignment of the synthesizer requires the following test equipment, or its equivalent:Power supply - Regulated +9.5 Vdc at 2 A. Phillips PM 2811Oscilloscope / Multimeter - Fluke 97 ScopemeterRadio communications test set - Marconi Instruments 2965AIt is recommended that the radio communications test set be referenced to an external high stabilityfrequency source (WWVH, GPS, Loran C) so that the OS-3A/H internal high stability localoscillator may be accurately set to within its ±1 ppm frequency tolerance.3.4 OS(R/T)-3(A/H) Synthesizer Factory ConfigurationThe OS(R/T)-3(A/H) Synthesizer is factory configured as follows:•Internal 9.6 MHz reference selected.•VCO modulation (via audio processor) enabled (OST TX versions only)
3-2Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHzThe corresponding internal synthesizer jumper settings are:Digital Board• Jumper JU2 not installed9.6 MHz internal frequency reference selected• Jumper JU1 installed AM Multichannel mode selectedAnalog Board• Jumper JU1: 'B' positionInternal frequency reference selected• Jumper JU2 not installed Internal frequency reference selected3.5 OS(R/T)-3(A/H) Synthesizer AlignmentInvisible text3.5.1 GeneralUnder normal circumstances (i.e. a change in operating frequency within the synthesizer’smaximum tuning range), synthesizer alignment is accomplished with the synthesizer installed in theMT-3 Receiver IF/Audio Board or the MT-3 Transmitter Main Board. The alignment procedureinvolves setting the internal TCXO reference frequency (if one is installed and the internalreference option is enabled). This step is described in "Reference Frequency Alignment", section3.5.5.5. A change in operating frequency from the initial factory setting that exceeds thesynthesizer’s maximum tuning range (Refer to Specifications section 1.3) requires a more involvedalignment procedure as described in sections 3.5.2 to 3.5.5. Conversion of a synthesizer frominternal reference to external reference or vice-versa is accomplished through selection of jumperJU1 A or B, as appropriate and JU2 (Refer to section 3.5.6).3.5.2 Synthesizer Test PointsAnalog Board Component Layout (Top)Common to all synthesizer family members.TP1+8.0 ±0.3 Vdc. U6 positive regulator output.TP2+5.0 ±0.1 Vdc. U7 positive regulator output.TP3+5.0 ±0.1 Vdc. U8 positive regulator output (always on).TP4 PLL error voltage. Normal range is +0.5 to +4.5 Vdc (depending on frequency).Nominally adjusted for +2.3 Vdc (via C24) for center channel. UHF/VHF versions employing integrated VCO modules (OSR-3H440, OST-3H418, OST-3H460, OSR-3A149, OST-3A128) require no adjustment.Digital Board Component Layout (Bottom)TP1+5.0 ±0.1 Vdc. U2 positive regulator output (controlled via pin P2-4).TP2Microcontroller E clock. 2 MHz logic level square wave.
Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz 3-33.5.3 Synthesizer Removal and InstallationThe synthesizer module is secured to the main board (MT-3 Receiver IF/Audio Board or MT-3Transmitter Main board) with a single counter sunk Phillips machine screw accessible from the topcover. Remove this screw to remove the synthesizer module. Using a plastic coated lifting tool,such as a small screwdriver with the tip covered in heat shrink material, gently lift the synthesizermodule from the main circuit board by applying pressure in a rotating fashion about the fourcorners of the synthesizer module. It is important to gently remove the synthesizer module"straight out" in order to prevent damage to the connector pins. Installation of the synthesizer isperformed in a reverse fashion. It is important to ensure complete connector pin alignment prior toany application of reinsertion force. Four corner locating pins on the synthesizer housing assist inconnector pin alignment during installation and removal.Note:Complete synthesizer alignment can be performed without removing the synthesizer.The alignment procedure starting in section 3.5.5 may now be performed.3.5.4 Circuit Board RemovalNote: Circuit board removal is not required for tuning purposes.Using a vacuum de-soldering station, de-solder connections P1, P2 and P3. Remove SMBconnectors J1 and J2 by de-soldering the center pins and removing four M2.0 machine screws.These connection points are shown in the "OS(R/T)-3(A/H) XXX - XXX MHz Analog BoardComponent Layout (Top)" diagrams. Remove seven M2.0 machine screws and carefully removethe analog circuit board. Removal of the analog circuit board will expose three inter-board wireconnections. Carefully remove three ferrite beads and six Teflon washers from the inter-boardconnection wires. Attempt to maintain the position of the three inter-board wires in order tosimplify re-assembly. The digital board may now be extracted by removing four M2.0 machinescrews. Follow a reverse procedure to re-assemble.3.5.5 Frequency Adjustment and Channel SelectionConnect a radio communications test set through a short section of low loss 50 Ω coaxial cable tothe synthesizer module SMB RF output jack (J2). Select the desired channel number via the BCDfrequency selection switches on the MT-3 Transmitter Main board or the MT-3 Receiver IF/Audioboard (or through .the Frequency Programming Module). Turn the power off and back on andwait a few minutes for the oscillator to completely stabilize. It should be noted that the internalsynthesizer TCXO, if installed, operates continuously (regardless of the TX PTT state) wheninstalled in a transmitter.
3-4Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHzThe measured RF output signal should be within ±1.0 ppm of the specified oscillator frequency atan output level of +5 dBm. Note that unlocked synthesizer operation will be indicated by anunstable or spurious RF output signal. The "Unlocked" red LED will also be illuminated when thePLL is unlocked. Check that the requested channel number is within the frequency range of theparticular synthesizer model. An unlocked condition may be rectified by adjusting the VCO tuningelements as described in the following procedures (no adjustment required for the MultichannelAM Synthesizers). Note that there are variations in alignment procedures between the threesynthesizer family members as described in the following sections.3.5.5.1 VHF OS(R/T)-3H 29 - 71.4 MHz VCO AlignmentRefer to the "OS(R/T)-3H 29 - 71.4 MHz Analog Board Component Layout" diagrams and the"OS(R/T)-3H 29 - 71.4 MHz Analog Board Schematic Diagram" on pages 4-1, 4-2 and 4-3 of thismanual.Using a high impedance (10 MΩ) DC Voltmeter, measure the PLL control voltage at TP4 locatedon the synthesizer module analog board (top). Access to TP4 is available through the synthesizertop cover. Using a small standard blade screwdriver, carefully adjust the VCO fine frequency"TUNE" trimmer capacitor C24 until a test point (TP4) voltage of approximately +2.3 Vdc isobtained. PLL loop control voltages below approximately +0.5 Vdc and above approximately+4.5 Vdc will indicate an "out of lock" synthesizer condition.If a test point (TP4) reading of approximately +2.3 Vdc is unattainable through adjustment of C24,then the coarse frequency jumpers, JU2-JU4 require modification in order to pull the VCO tunerange within the adjustment range of fine tuning capacitor C24. The top synthesizer cover must beremoved in order to gain access to the coarse frequency jumpers. The coarse frequency jumpers(JU2-JU4) may be considered to be a selectable binary weighted capacitor element with JU2 beingthe most significant "bit" and JU4 being the least significant "bit". The tuning resolution size is≈12 pF (JU4). If the tuning voltage remains higher than +2.3 Vdc, decrease the tuning jumpersetting by 1 "bit" position and re-adjust C24 in an attempt to achieve +2.3 Vdc at TP4. Forexample, if coarse frequency jumpers JU2-JU4 are all installed and represented by 111 then adecrease by 1 "bit" position (12 pF) is represented by a binary jumper selection of 110; jumperJU4 is not installed and jumpers JU2, JU3 are installed. Continue to decrease the jumper positionone "bit" at a time until the synthesizer regains lock with TP4 adjusted (C24) for +2.3 Vdc. If thetuning voltage remains lower than +2.3 Vdc, increase the jumper setting by 1 "bit" position and re-adjust C24 in an attempt to achieve +2.3 Vdc at TP4. Repeat this procedure until +2.3 Vdc isachieved at TP4.It is important to check the loop control voltage at TP4 when multiple synthesizer channels havebeen programmed. All channel selections should result in a TP4 voltage within a +1.0 to +4.0 Vdcrange. Adjust the fine-tuning capacitor C24 to center multiple channel voltages symmetrically about+2.3 Vdc. Channel selections beyond the tuning range capability of the synthesizer will result in
Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz 3-5unlocked operation. The tuning range capability of all synthesizer models is listed in theSpecifications section (1.3) of this manual.3.5.5.2 VHF OS(R/T)-3A 118 - 159.4 MHz AlignmentRefer to the "OS(R/T)-3A 118 - 159.4 MHz Analog Board Component Layout" diagram and the"OS(R/T)-3A 118 - 159.4 MHz Analog Board Schematic Diagram" on pages 4-5, 4-6 and 4-7 ofthis manual.Using a high impedance (10 MΩ) DC Voltmeter, measure the PLL control voltage at TP4 locatedon the synthesizer module analog board (top). Access to TP4 is available through the synthesizertop cover. VHF synthesizers operating in the 118 - 159.4 MHz frequency range require nofrequency adjustment as tuning is microprocessor controlled. (The OST-3A128 and OSR-3A149,covering 118-138 MHz and 139.4 - 159.4 MHz respectively, provide full band coverage withouttuning adjustment.)All channel selections should result in a TP4 voltage between +3.1 and +3.5 Vdc. Channelselections beyond the tuning range capability of the synthesizer will result in unlocked operationover the temperature range -40C to +60C. The tuning range capability of all synthesizer models islisted in the Specifications section of this manual.3.5.5.3 VHF OS(R/T)-3H 128 - 174 MHz VCO AlignmentRefer to the "OS(R/T)-3H 128 - 174 MHz Analog Board Component Layout" diagram and the"OS(R/T)-3H 128 - 174 MHz Analog Board Schematic Diagram" on pages 4-9, 4-10 and 4-11 ofthis manual.Using a high impedance (10 MΩ) DC Voltmeter, measure the PLL control voltage at TP4 locatedon the synthesizer module analog board (top). Access to TP4 is available through the synthesizertop cover. Using a small standard blade screwdriver, carefully adjust the VCO fine frequency"TUNE" trimmer capacitor C24 until a test point (TP4) voltage of approximately +2.3 Vdc isobtained. Measured PLL loop control voltages below approximately +0.5 Vdc and aboveapproximately +4.5 Vdc will indicate an "out of lock" synthesizer condition.It is important to check the loop control voltage at TP4 when multiple synthesizer channels havebeen programmed. All channel selections should result in a TP4 voltage within the +1.0 to+4.0 Vdc range. Adjust the fine-tuning capacitor C24 to center multiple channel voltagessymmetrically about +2.3 Vdc. Channel selections beyond the tuning range capability of thesynthesizer will result in unlocked operation. The tuning range capability of all synthesizer modelsis listed in the Specifications section of this manual.
3-6Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz3.5.5.4 UHF OS(R/T)-3H 406 - 470 MHz VCO AlignmentRefer to the "OS(R/T)-3H 406 - 470 MHz Analog Board Component Layout" diagram and the"OS(R/T)-3H 406 - 470 MHz Analog Board Schematic Diagram" on pages 4-13, 4-14 and 4-15 ofthis manual.Using a high impedance (10 MΩ) DC Voltmeter, measure the PLL control voltage at TP4 locatedon the synthesizer module analog board (top). Access to TP4 is available through the synthesizertop cover. The UHF synthesizers operating in the 406 - 470 MHz frequency range employintegrated VCO modules having no external frequency adjustment capability. The OST-3H418,OST-3H460 and OSR-3H440 models cover frequencies from 406 - 430 MHz, 450 - 470 MHz and427.4 - 451.4 MHz respectively and provide full band coverage without tuning adjustment. For theOST-3H418, measured PLL control voltages below approximately +0.5 Vdc and aboveapproximately +4.5 Vdc will indicate an “out of lock” condition. For the OSR-3H440 and theOST-3H460, measured PLL control voltages below approximately +1.0 Vdc and aboveapproximately +7.0 Vdc will indicate an “out of lock” condition.It is important to check the loop control voltage at TP4 when multiple synthesizer channels havebeen programmed. All channel selections should result in a TP4 voltage within the +0.5 to+4.5 Vdc range for the OST-3H418. The TP4 voltage for the OSR-3H440 and the OST-3H460should be within the +1.0 to +7.0 Vdc range. Channel selections beyond the tuning rangecapability of the synthesizer will result in unlocked operation. The tuning range capability of allsynthesizer models is listed in the Specifications section of this manual.3.5.5.5 Reference Frequency AlignmentAdjust the synthesizer TCXO fine frequency potentiometer RV1 until the correct output frequencyis achieved. Access to this potentiometer is through an opening in the synthesizer top cover. A RFpower level of approximately +5 dBm should be measured at the synthesizer module outputconnector and the frequency should be within ±1 ppm of the desired operating frequency.Reference frequency adjustments should be made at room temperature (+25°C) after a ten minutestabilization period.
Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz 3-73.5.6 Jumper ConfigurationSolder jumpers are clearly marked on both synthesizer digital and analog circuit boards. Refer tothe "OS(R/T)-3(A/H) Digital Board Component Layout (Bottom)" diagram on page 4-17 of thismanual and the applicable "OS(R/T)-3(A/H) Analog Board Component Layout (Top)" diagram onpage 4-18 for jumper locations. The following list details the required jumper configuration for thetwo synthesizer operating modes:1)Internal reference. Install jumper JU1-B, on the Analog Board (Standard). The internaltemperature compensated crystal oscillator (TCXO) provides the reference signal with astability of ±1 ppm from -30°C (Optional -40°C) to +60°C.2)External reference input. Install jumper JU1-A and JU2 on the Analog Board. This mode isused in applications requiring better than ±1 ppm frequency stability. An external referencesignal must be provided at synthesizer SMB connector J1.3) Reference Frequency Select. Install jumper JU2 on the Digital Board to select a 10.0 MHzreference frequency. When not installed, the reference frequency is by default 9.6 MHz.JU2 must not be installed when using the internal 9.6 MHz TCXO reference. JU2 is usedby the microcontroller to establish the correct reference frequency division ratio. (Locatedon the Digital Board; The Synthesizer module must be removed to change jumper JU2.)4) AM Multichannel Synthesizer Select. Install jumper JU1 on the Digital Board to select andenable the AM Multichannel Synthesizer with Frequency Select Handle.Caution: Care must be exercised when reinstalling the synthesizer module on the TransmitterMain board or the IF/Audio board. Pay careful attention to pin alignment beforepressing the synthesizer module into its mating sockets.
3-8Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHzThis Page Intentionally Left Blank
PCB 50038-02DATE: FEB 26, 1997DWG No: OS3H040AT2ADANIELSELECTRONICS VICTORIA, B.C.TITLE: OS-3H050 ANALOG BOARD THROUGH HOLE BOTTOM LAYOUTBOARD No.:DWG REV DATE: JAN 6/9950038-02Q5J211L410µHL610µHR261R2L91.5µHL81.5µHL101.5µHL310µHL210µHR51220RC5422µF+C5022µF+C4222µF+R50180R R40180RC45 470nFL74.7µHC241-14pFC371.0µFC39 1.0µFL5SELL110µHC381.0µFR36R32R3315K680R2K7LED1+TITLE: OS-3H050 ANALOG BOARD THROUGH HOLE BOTTOM DESIGNATIONC48 SELC49 22nFR2330RL124.7µHDESIG. TX 29 - 40 MHzOST - 3H035C48TX 39 - 50 MHzOST - 3H045 RX 50.4 - 71.4 MHzOSR - 3H061TRANSMITTER RECEIVER260 nHL568 nF197 nH68 nF138 nHNot InstalledDE DANIELSELECTRONICSEnhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz 4-14 ILLUSTRATIONS AND SCHEMATIC DIAGRAMS4.1 OS(R/T)-3H 29 - 71.4 MHz Analog Board Diagrams4.1.1  OS(R/T)-3H 29 - 71.4 MHz Analog Board Component Layout (Bottom) OS3050M1
PCB 50038-02DATE: FEB 27, 1997DWG No:OS3HANA040AS1ADANIELSELECTRONICS VICTORIA, B.C.TITLE: OS-3H040 ANALOG BOARD SURFACE MOUNT TOP LAYOUTBOARD No.:DWG REV DATE: 26 MAY 200050038-02TITLE: OS-3H040 ANALOG BOARD GENERIC SM TOP DESIGNATIONSC11nFR1410k0R1311k8C647µFC21nFC710nFC12U6LT1129-IS84.7µFQ1BC817R310k0C31nFR410k0R3410k010k0R3510k0C1910nFR2310R0U7LP2951U8LP2951U10SELC2110nFC2210nF C204.7µFC2947µFC3010nFR29SELU9SI9945DYR1510R010R0R2410R04.7µFC134.7µFC154.7µFC274.7µFR1210k01µF C2210nFC261nFR1010k010k0R18C11Q3BC807100nFC5Q4BC81710k0R1147µFC18100nFC1010k0R19 D5BAS16JU11nFC165k11R175k11R16100nFC8100RR5R55k0RV1C261nFC31R91k00 R61k00R710k0C1410nFQ2BC817R810k010nFC91nFC2549R9R120k0R2110k0R5310R0R2510nFC41nFC17 0R0R39D1 D2MMBV609LMMBV609L10R0R2015K0R27C281nFMMBD701LSELC23D3SELC34C353.3pFC36330pFR3149R9R3010R0C44330pFC47330pFR4118R2R4747R5R4827R4R4933R2C44C5510nFR5249R9C56330pF R28N/IU11MSA-0611U16MSA-0611MSA-0611U15 SELL13SELL11C57SEL274RR55274RR5618R2R54SELC58SELC52330pF C53C46330pF330pFC5110nF27R4R4510nFC4347R5R4447R5R4633R2D4BYD17J47pFC62JU2 JU3 JU422pFC63 12pFC64SELC6133pFC4049R9R38C411nFSELC5910nFR22DESIG. TX 29 - 40 MHzOST - 3H035C23 150 pF15 pFC5356 pFC57150 pFC34C61TX 39 - 50 MHzOST - 3H045 RX 50.4 - 71.4 MHzOSR - 3H061TRANSMITTER RECEIVER33 pFC5933 pFC5856 pF100 pF15 pF47 pF100 pF33 pF33 pF56 pF56 pF68 pF33 pF56 pF100 pF68 pFNot Installed100 nH100 nHL11L13100 nH100 nH120 nH120 nHDWG No:OS3HANA040AS2A1k00R29U1018k2MC145191 orMC1451923k92MC1451933k92MC145193TCXO1TITLE: OS-3H040 ANALOG BOARD TH TOP LAYOUTU2OPL550U3OPL550 U4OPL550 U1OPL550 U5OP140AJ1J2TITLE: OS-3H040 ANALOG BOARD TH TOP DESIGNATIONDE DANIELSELECTRONICSBAR located on bottom side of TCXO4-24.1.2  OS(R/T)-3H 29 - 71.4 MHz Analog Board Component Layout (Top)TP2TP3TP1TP4Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29-470 MHzOS3050M2BDesolder three boardinterconnect points toseparate analog anddigital boards..Remove seven M2.0machine screws toremove analog board.ABJU1 position B selectedfor internal 9.6 MHzP2P1P3LOCK DETECTLED
DESIGNATIONOST-3H035TX 29 - 40 MHzC23TRANSMITTEROST-3H045TX 39 - 50 MHzOSR-3H061TX 50.4 - 71.4 MHzRECEIVERL5C61C48C53C58C59L11C34C57L13150 pF260 nH * 150 pF68nF *56 pF33 pF33 pF56 pF15pF56 pF138 nH * 56 pFNot Installed68 pF100 pF120 nH33 pF120nHNot Installed68 pF100 pF47 pF68nF *56 pF15pF33 pF33 pF100 pF100 nH100 nH197 nH * R22 475R 475R Not Installed* Thru Hole Component100 nH100 nHR29U1018k2MC145191 orMC1451923k92MC1451933k92MC145193VICTORIA B.C.DEDANIELS ELECTRONICS DEDANIELSELECTRONICSDWG REV DATE: 26 MAY 00 TP4 LOOP CONTROLSET FOR ≈ 2.3 VDCDWG No: OS3050M3BBOARD No: 50038-024.1.3 OS(R/T)-3H 29 - 71.4 MHz Analog Board Schematic DiagramTITLE: OS(R/T)-3H 29 - 71.4 MHz ANALOG BOARD SCHEMATIC DIAGRAMEnhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz 4-3----------U12 - U14L13BOARD REV: 1DATE: 24 FEB 97 DWN BY: COLIN GUNNLED1C64 ----- -----R42, R43R37ABU16TCXO1RV1R56Q5D5APRVD:----- -----UNUSED REFERENCE DESIGNATORSHIGHEST REFERENCE DESIGNATORSRF OUTPUT3.5 dB PadLOCK DETECTOUTPUTACTIVATED WHENUNLOCKEDNCNCNCMODULATION INPUTPOWER CNTRLID≈10 mALOCK DETECTDATA INPUTCLKENABLEACTIVE HIGHTO ALL +8VA SUPPLY POINTSEXTERNAL REFERENCEINPUT (50Ω)FREQ CONTROLTCXO MOD INPUT+9.5 VDC SUPPLYTO ALL +5VA SUPPLY POINTSNCNCREFOUTLDøRøVVPDPDOUTGNDRXTEST 1FINREFINDINCLKENBOUTPUTAOUTPUTBVDDTEST 2VCCFIN1234567891011121314151617181920SELU10AGNDAGNDGNDVCNTRLOUTPUTVCC1423TCXO19.6 MHzAGNDC311.0nFR29SELOUTPUTSENSE5VTAPFBINPUTERRORSHDNGND12674358U8LP2951AGND+C154.7uFAGNDR1510R0+C1847uFAGNDR165K11R175K11AGNDRV15K0AGNDC161.0nF+C647uFAGNDAGNDC710nFR1910K0C1410nFAGND213JU1C1910nF+5VAZ2AGNDC2210nFAGNDC2110nFR2310R0R2410R0+C274.7uFAGND+C204.7uFAGND+5VA+5VAR3149R9AGND+C32100uFAGNDR3010R0C36330pFAGNDIN OUTGND1 34 2U11MSA-0611R40180RL81.5uH+C4222uFAGNDC4310nFAGND+8VAC44330pFR4118R2R4447R5R4747R5R4633R2AGNDC46330pFAGNDIN OUTGND1 34 2U15MSA-0611R50180RL91.5uH+C5022uFAGNDC5110nFAGND+8VAC52330pFR4527R4C47330pFAGNDIN OUTGND1 34 2U16MSA-0611R51220RL101.5uH+C5422uFAGNDC5510nFAGND+8VAC56330pFR4827R4R4933R2AGNDR5249R9AGNDR55274AGNDR5418R2R56274AGNDJ2AGND213D2MMBV609L213D1MMBV609LL410uHR2010R0AGNDR2510R0L610uHC251.0nFAGNDC23SELL210uHAGNDC21.0nFP2OUTPUTSENSE5VTAPFBINPUTERRORSHDNGND12674358U7LP2951AGND+C134.7uFAGNDL310uHAGNDC31.0nFP3EBCQ2BC817J1R710K0R61K00R91K00AGNDAGNDC410nFC910nFAGNDR149R9AGNDR5100RC8100nFAGND+5VAVCCOUTGND123U1OPL550VCCOUTGND123U2OPL550VCCOUTGND123U3OPL550VCCOUTGND123U4OPL550AGNDAGNDAGND+5VAC10100nFAGNDOUTBOUTAENBCLKDINAGNDAGNDR1311K8R1410K0AGND+C124.7uFAGND+8VAAGND+5VBC5100nFAGND+5VBTP1TP2TP3EBCQ1BC817AGNDR410K0 R310K0OUTPUTADJGNDNCVINGNDGNDSHDN8765 4321LT1129-IS8U6+C33100uFAGNDD4BYD17JR261R2AGNDEBCQ4BC817R1110K0AGNDR1810K0+5VAENBCLK12OP140AU5R1210K0AGNDAGNDEBCBC807Q3R1010K0R2330RC371.0uFAGND+8VAR28N/I+C2947uFAGNDAGNDC3010nFOUTB10uHL1AGND1.0nFC1P1AGNDR221K00AGND20K0R211.0nFC26D1D1D2D2S1G1S2G21234 5678SI9945DYU9AGND0R00R39R810K010K0R3410K0R35+5VA+5VAAGND+1.0uFC11BAS16D510K0R53TP4C381.0uFAGNDAGNDDINLED1LTL-93BEK1 AGNDR33680RGSDQ5J211L74.7uHR2715K0D3MMBD701C4033pFC34SELR3849R9C281.0nF+8VAC411.0nFL5SELC241-14pFJU2SELC61C59SELC53SELL11SELC58SELAGNDAGNDSELC48AGNDAGNDAGNDAGNDAGNDAGNDAGNDAGNDAGNDJU3 JU4SELL13SELC57AGNDC171nFC6247pF C6322pF C6412pFR3215K01.0uFC392K7R36C45470nF C4922nFL124.7uHC353.3pF+5VA
DEDANIELSELECTRONICS4-4Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHzThis Page Intentionally Left Blank
DATE: APR 18, 1999DWG No:TBADANIELSELECTRONICS VICTORIA, B.C.TITLE: OS-3A130 ANALOG BOARD OUTLINEBOARD No.:DWG REV DATE: 04 NOV 9950082-04DWG No:TBATITLE: OS-3A130 ANALOG BOARD BOTTOM THROUGH HOLE LAYOUTL41.5µHL61.5uHR261R2L81.5uHL310uHL210uHC4222uF+C45 SELL71.5uHC37SELC39 SELL5R2330RC38SELC49 SELR36R32R33SEL680RSELLED1+AM TX 118 - 138 MHzOS - 3A128AM RX139.4 - 159.4 MHzOS - 3A149DESIG.C39C45C49R32R36SELECT COMPONENTSNOT INSTALLED22 nF2.2 nF1.0 µF330 nF 470 nF15K68K1K88K2C38 100 nF 1.0 µFC37 470 nF 1.0 µFQ5J211- --L131.5uHC63680nFDWG No:TBATITLE: OS-3A130 ANALOG BOARD BOTTOM THROUGH HOLE DESIGNATIONSEnhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz 4-54.2 OS(R/T)-3A 118 - 159.4 MHz Analog Board Diagrams4.2.1  OS(R/T)-3A 118 - 159.4 MHz Analog Board Component Layout (Bottom) PCB 50082-04OS3150M1ADE DANIELSELECTRONICS
DATE: APR 18, 1999DWG No:OS3AxxxxxS1ADANIELSELECTRONICS VICTORIA, B.C.TITLE: OS-3A130 ANALOG BOARD OUTLINEBOARD No.:DWG REV DATE: 04 NOV 99 50082-04Not Inastalled (installed during final assembly)DWG No:OS3AxxxxxS1ATITLE: OS-3A130 ANALOG BOARD SURFACE MOUNT LAYOUTC51R1410k0R1311k8C647µFC21nFC710nFC12U6LT1129-IS84.7µFQ1BC817R310k0C31nFR410k0R3410k010k0R3510k0C1910nFR2310R0U7LP2951U8LP2951U10MC145191C2110nFC2210nF C204.7µFC2947µFC3010nFR2918k2U9SI9945DYR1510R010R0R2410R04.7µFC134.7µFC154.7µFC274.7µFR1210k01µF C2210nFC261nFR1010k010k0R18 C11Q3BC807100nFC5Q4BC817100kR5347µFC18100kR4210k0R19D5BAS16JU11nFC165k11R175k11R16100nFC8 100RR5R55k0RV1C261nFC31R91k00R61k00 R710k0C50100nFQ2BC817R810k010nFC9N/IC2549R9R110R0R2510nFC40R0R39D1 D2MMBV609LMMBV609L10R0R20SELC2311k8R27C286.8µFMMBD701LSELC40D3C3410nFC355.6pFC363.3pFR3149R9R3010R0100nFC47330pFR4120k0C5210nFC41R28N/IMSA-0611U1147nHL1247nHL1127pFC5927pF47pFC5827pFC44330pF C53C46100nF18R2R4510nFR441k82R46475RD4BYD17JD6SEL4.7µFC6110nFC62 274KR57 4k75R62C602.2µFU17LTC1275IU19MC33172U18PIC12C672SELR60R58825KR5910K0R6310R0137kR43R3749k9100µFC32 100µFC33D7SEL1nFC11nFC17100nFC4810nFC14U2074HC14 100nFC10137kR2210kR11100nFR3849k9JU220K0R611nFC24Q6MMBR901C43Factory Installed JumpersDWG No:OS3AxxxxxS1ATITLE: OS-3A130 ANALOG BOARD SURFACE MOUNT DESIGNATIONSDWG No:OS3AxxxxxS1ATITLE: OS-3A130 ANALOG BOARD TOP THROUGH HOLE LAYOUTU2OPL950 U3OPL950 U4OPL950 U1OPL950 U5OP140ATCXO1R40SELC23C40SELECT COMPONENTS AM TX 118 -138 MHzOST - 3A1283.3pF8.2pFNot InstalledSMV1211Not InstalledD6,D7330Ω220ΩR40 AM RX 118 -138 MHzOSR - 3A149D6,D7 SMV1211-001D6,D7 D6-SMV1212-004, D7-N/IDWG No:OS3AxxxxxS1ATITLE: OS-3A130 ANALOG BOARD TOP THROUGH HOLE DESIGNATIONS68K139K2R60DE DANIELSELECTRONICSBAR located on bottom side of TCXO4-64.2.2  OS(R/T)-3A 118 - 159.4 MHz Analog Board Component Layout (Top) PCB 50082-04TP2TP3TP1TP4Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHzOS3150M2ADesolder three boardinterconnect points toseparate analog anddigital boards..Remove seven M2.0machine screws toremove analog board.Select valuesABJU1 POSTION B SELECTEDFOR INTERNAL 9.6 MHzP2P1P3LOCK DETECTLEDJ1J2
DESIG.C23 *C45C39R36R32C49C40 *C37C3810 pFNOT INSTALLED8K268K2.2 nFNOT INSTALLED470 nF100 nFNOT INSTALLED1.0 µF1K815K22 nF8.2 pF1.0 µF1.0 µFAM RX 139.4-159.4 MHzOSR-3A149* - Surface Mount ComponentsD6*, D7* SMV1211-001 D6 - SMV1212-004, D7 - N/IR60 * 39K2 68K1AM TX 118-138 MHzOST-3A128C45 330 nF 470 nFR40 330R 330RVICTORIA B.C.DEDANIELS ELECTRONICS DEDANIELSELECTRONICS4.2.3 OS(R/T)-3(A/H) 118 - 159.4 MHz Analog Board Schematic DiagramTITLE: OS(R/T)-3(A/H) 118 - 159.4 MHz ANALOG BOARD SCHEMATIC DIAGRAMBOARD No: 50082-04TP4 LOOP CONTROLSET FOR ≈3.3 VDCDWN BY: STAN POLYAKOVC63DWG REV DATE: 08 AUGUST 1999R54-R56 R21, R47-R52U12 - U16L1, L9, L10C54 - C57U20R63Q6L13D7DATE: 06 JULY 99BOARD REV: 1C32 AND C33 ARE SURFACE MOUNTOR THROUGH HOLE PARTSTO ALL +5VB SUPPLY POINTSTO ALL +5VA SUPPLY POINTSDWG No: OS3150M3AEnhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz 4-7ABTCXO1RV1LED1APRVD:----- ---------------UNUSED REFERENCE DESIGNATORSHIGHEST REFERENCE DESIGNATORSRF OUTPUTLOCK DETECTOUTPUTACTIVATED WHENUNLOCKEDNCNCNCPOWER CNTRLID≈10 mALOCK DETECTDATA INPUTCLKENABLEACTIVE HIGHTO ALL +8VA SUPPLY POINTSEXTERNAL REFERENCEINPUT (50Ω)FREQ CONTROLTCXO MOD INPUT+9.5 VDC SUPPLYNCNCREFOUTLDøRøVVPDPDOUTGNDRXTEST 1FINREFINDINCLKENBOUTPUTAOUTPUTBVDDTEST 2VCCFIN1234567891011121314151617181920MC145191U10AGNDAGNDGNDVCNTRLOUTPUTVCC1423TCXO19.6 MHzAGNDC311.0nFOUTPUTSENSE5VTAPFBINPUTERRORSHDNGND12674358U8LP2951AGND+C154.7uFAGNDR1510R0+C1847uFAGNDR165K11R175K11AGND321RV15K0AGNDC161.0nF+C647uFAGNDAGNDC710nFR1910K0C1410nFAGND213JU1C1910nF+5VAZ2AGNDC2210nFAGNDC2110nFR2310R0R2410R0+C274.7uFAGND+C204.7uFAGND+5VA+5VAGSDQ5J211AGNDC3410nFAGNDL71.5uH+C32100uFAGNDR3010R0+8VAAGNDL81.5uH+C4222uFAGNDC4310nFAGND+8VAC44330pFL1147nH L1247nHC5327pF C5847pF C5927pFAGNDAGNDAGND01J2AGND213D2MMBV609L213D1MMBV609LL41.5uHR2010R0AGNDR2510R0C25SELAGNDC23SELL210uHAGNDC21.0nFP2OUTPUTSENSE5VTAPFBINPUTERRORSHDNGND12674358U7LP2951AGND+C134.7uFAGNDL310uHAGNDC31.0nFP3EBCQ2BC817J1R710K0R61K00R91K00AGNDAGNDC410nFC910nFAGNDR149R9AGNDR5100RC8100nFAGND+5VAAGNDAGNDAGNDAGNDAGNDR1311K8R1410K0AGND+C124.7uFAGNDZ1+8VAAGND+5VBAGND+5VBTP1TP2TP3EBCQ1BC817AGNDR410K0 R310K0OUTPUTADJGNDNCVINGNDGNDSHDN8765 4321LT1129-IS8U6+C33100uFAGNDD4BYD17JR261R2EBCQ4BC817R1110K0AGND+5VA12OP140AU5R1210K0AGNDAGNDEBCBC807Q3R1010K0R2330RC45SELR36SELC37SELAGNDR28N/I+C2947uFAGNDAGNDC3010nFAGND1.0nFC26D1D1D2D2S1G1S2G21234 5678SI9945DYU9AGND0R39R810K010K0R34+5VA+5VASELC49AGND+1.0uFC11BAS16D5SELR32 TP4C38SEL C39SELAGNDAGNDSELC40DINAGNDR33680RAGND12C6210nFAGNDAGND43218U19MC33172657U19MC33172b12R6120K012R5910K0AGND12C602.2uF12R6310R0AGNDAGNDVOUTREFCLKDOUTDINLOADGNDVCC12345678U17LTC1257IAGNDR2711K8+C286.8uF 132MMBD701LD3+5VB+5VB12R58825K0AGNDAGNDGP5 GP2GP3GNDVDDGP0GP4GP174861352PIC12C672U18IN OUTGND1 34 2U11MSA-0611+5VA49K9R3849K9R379.5V9.5VL61.5uHAGND1 21.0nFC171 2 1.0nFC1AGND1 21.0nFC24AGND1 2R60SELACU1OP950 21 147U2074HC14aAGNDACU2OP950ACU3OP950ACU4OP95012JU243U2074HC14b65cU2074HC1489dU2074HC14AGNDC5100nFLED1C10100nF10K0R35R1810K0101174HC14U20e121374HC14U20fAGNDENBCLKDINCLKENB1 2330pFC47R40330R (SEL)12100nFC48AGNDAGND1 2100nFC501 2 100nFC51+5VAEBCMMBR901Q6AGND+8VA121K82R44 1218R2R45AGNDAGND12475R0R461 23.3pFC36125.6pFC3512100nFC41AGND1210nFC46C5210nFAGND1 2R624K75AGNDAKD6SELAKD7SEL1432L5AGND+5VB+5VB+5VBL131.5uH124.7uFC61 1 2680nFC6312R22137K012R42100K012R43137K012R53100K01220K0R4112SM_0805100R0R31+5VA12R57274K0R2918K2
DEDANIELSELECTRONICS4-8Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHzThis Page Intentionally Left Blank
PCB 50025-02DATE: MARCH 22, 1996DWG No:TBADANIELSELECTRONICS VICTORIA, B.C.TITLE: OS-3H ANALOG BOARD THROUGH HOLE BOTTOM LAYOUTBOARD No.:DWG REV DATE: 15 MARCH 200050025-02L5C33100µFC32100µFL41.5µHL61.5µHR261R21.5µHL81.5µHL101.5µHL310uHL210µHR51220RC5422µF+C5022µF+++C4222µF+R50180RR40180RC45 SELL71.5µHC241-14pFC371.0 µFC39 SELL110µHR2330RC38SELC49 SELR36R32R33SEL680RSELLED1+TITLE: OS-3H ANALOG BOARD THROUGH HOLE BOTTOM DESIGNATIONL9VHF LOW BAND 128 - 153 MHzOSx - 3H141VHF HIGH BAND 150 - 174 MHzOSx - 3H162DESIG.C3922 nFC4533 nFNOT INSTALLEDC49220 nF15K12KR326K22K2R36SELECT COMPONENTSC38 1.0 µF 470 nF1.0 µF470 nFQ5J211 L5Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz 4-94.3 OS(R/T)-3H 128 - 174 MHz Analog Board Diagrams4.3.1  OS(R/T)-3H 128 - 174 MHz Analog Board Component Layout (Bottom)OS3150M1BDE DANIELSELECTRONICS
PCB 50025-02DATE: FEB 24, 1996DWG No:OS3HANA150AS1ADANIELSELECTRONICS VICTORIA, B.C.TITLE: OS-3H150 ANALOG BOARD ECO #584 CHANGESBOARD No.:DWG REV DATE: June 19, 200050025-02Factory Installed JumpersSelect componentsTITLE: OS-3H150 ANALOG BOARD SURFACE MOUNT TOP DESIGNATIONSC11nFR1410k0R1311k8C647µFC21nFC710nFC12U6LT1129-IS84.7µFQ1BC817R310k0C31nFR410k0R3410k010k0R3510k0C1910nFR2310R0U7LP2951U8LP2951U10MC145193C2110nFC2210nF C204.7µFC2947µFC3010nFR293k92U9SI9945DYR1510R010R0R2410R04.7µFC134.7µFC154.7µFC274.7µFR1210k01µF C2210nFC261nFR1010k010k0R18C11Q3BC807100nFC5Q4BC81710k0R1147µFC18100nFC1010k0R19 D5BAS16JU11nFC165k11R175k11R16100nFC8100RR5R55k0RV1C261nFC31R91k00 R61k00R710k0C1410nFQ2BC817R810k010nFC91nFC2549R9R120k0R2110k0R5310R0R2510nFC41nFC17 0R0R39R22D1 D2MMBV609LN/I10R0R20SELC23 11k8R27C286.8µFMMBD701LSELC40D310nFC3410nFC35SELC36330pFR3149R9R3010R0C44330pFC47330pFR4118R2R4747R5R4847R5R4910R0C44C5510nFR52N/IC56330pF R28N/IU11MSA-0611U16MSA-0611MSA-0611MSA-0611U1547nHL1247nHL1127pFC5927pF274RR55274RR5618R2R5447pFC5827pFC52330pF C53C46330pF330pFC5110nF27R4R4510nFC4347R5R4447R5R4633R2D4BYD17JDWG No:OS3HANA150AS2BSELTITLE: OS-3H ANALOG BOARD THROUGH HOLE LAYOUTDWG No:OS3HANA150AT1U2OPL550 U3OPL550 U4OPL550 U1OPL550 U5OP140ATITLE: OS-3H ANALOG BOARD THROUGH HOLE DESIGNATIONDWG No:OS3HANA150AT2DE DANIELSELECTRONICSC24 Fine Frequency AdjustBAR located on bottom side of TCXO4-104.3.2  OS(R/T)-3H 128 - 174 MHz Analog Board Component Layout (Top)TP2TP3TP1TP4Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHzOS3150M2CDesolder three boardinterconnect points toseparate analog anddigital boards..Remove seven M2.0machine screws toremove analog board.Select valuesABJU1 position B Selectedfor internal 9.6 MHzP2P1P3LOCK DETECTLEDJ1J2SELC35R22 0R0100RReceiver128 - 174 MHzOSR - 3HxxxTransmitter 128 - 174 MHzOST - 3HxxxSELECT COMPONENTSC23C40 12 pF 6.8 pF6.8 pF12 pFVHF HIGH BAND 150 - 174 MHzOSx - 3H162C35 3.3 pF 8.2 pF VHF LOW BAND128 - 153 MHzOSx - 3H141SELECT COMPONENTS
DESIG. LOW BAND 128-153 MHzOSx-3H141C23 * 12 pF 6.8 pFC45 470nF 220 nFC39 1.0uF Not InstalledR36 2K2 6K2R32 12K 15KC49 33nF 22nFC40 * 12 pF 6.8 pFC38 1.0 µF 470 nFHIGH BAND 150-174 MHzOSx-3H162* - Surface Mount ComponentsC35 * 3.3 pF 8.2 pFR22 * 100R for OST-3Hxxx / 0R0 for OSR-3HxxxVICTORIA B.C.DEDANIELS ELECTRONICS DEDANIELSELECTRONICSDWG No: OS3150M3C DWG REV DATE: 19 JUN 00 4.3.3 OS(R/T)-3H 128 - 174 MHz Analog Board Schematic DiagramTITLE: OS(R/T)-3(A/H) 128.6 - 174 MHz ANALOG BOARD SCHEMATIC DIAGRAMTP4 LOOP CONTROLSET FOR ≈ 2.3 VDC4-11Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHzABU12 - U14R42,R43R37,R38C57C41,C48U16TCXO1RV1R56Q5LED1L12D5C59BOARD REV: 2BOARD No: 50025-02DWN BY: COLIN GUNNDATE: 21 FEB 96 APRVD:----- ---------------UNUSED REFERENCE DESIGNATORSHIGHEST REFERENCE DESIGNATORSRF OUTPUT3.5 dB PadLOCK DETECTOUTPUTACTIVATED WHENUNLOCKEDNCNCNCMODULATION INPUTPOWER CNTRLID≈10 mALOCK DETECTDATA INPUTCLKENABLEACTIVE HIGHTO ALL +8VA SUPPLY POINTSEXTERNAL REFERENCEINPUT (50Ω)FREQ CONTROLTCXO MOD INPUT+9.5 VDC SUPPLYTO ALL +5VA SUPPLY POINTSNCNCREFOUTLDøRøVVPDPDOUTGNDRXTEST 1FINREFINDINCLKENBOUTPUTAOUTPUTBVDDTEST 2VCCFIN1234567891011121314151617181920U10MC145193AGNDAGNDGNDVCNTRLOUTPUTVCC14239.6 MHzTCXO1AGND1.0nFC313K92R29OUTPUTSENSE5VTAPFBINPUTERRORSHDNGND12674358LP2951U8AGND+4.7uFC15AGND10R0R15+47uFC18AGND5K11R165K11R17AGND3215K0RV1AGND1.0nFC16+47uFC6AGNDAGND10nFC710K0R1910nFC14AGND213JU110nFC19+5VAZ2AGND10nFC22AGND10nFC2110R0R2310R0R24+4.7uFC27AGND+4.7uFC20AGND+5VA+5VAGSDJ211Q5SELC3549R9R31AGND11K8R271432L5AGND+6.8uFC2810nFC34AGND132D3MMBD701L1.5uHL7+100uFC32AGND10R0R30330pFC36C241-14pFAGND+8VAAGNDIN OUTGND1 34 2MSA-0611U11180RR401.5uHL8+22uFC42AGND10nFC43AGND+8VA330pFC44 18R2R4147R5R4447R5R4733R2R46AGND330pFC46AGNDIN OUTGND1 34 2MSA-0611U15180RR501.5uHL9+22uFC50AGND10nFC51AGND+8VA330pFC5227R4R45330pFC47AGNDIN OUTGND1 34 2MSA-0611U16220RR511.5uHL10+22uFC54AGND10nFC55AGND+8VA330pFC5647R5R4810R0R49AGNDN/IR52AGND47nHL11 47nHL1227pFC53 47pFC58 27pFC59AGNDAGNDAGND274R55AGND18R2R54274R56AGNDJ2AGND213MMBV609LD2213N/ID11.5uHL410R0R20AGND10R0R251.5uHL61.0nFC25AGNDSELC2310uHL2AGND1.0nFC2P2OUTPUTSENSE5VTAPFBINPUTERRORSHDNGND12674358LP2951U7AGND+4.7uFC13AGND10uHL3AGND1.0nFC3P3EBCBC817Q2J110K0R71K00R61K00R9AGNDAGND10nFC4 10nFC9AGND49R9R1AGND100RR5100nFC8AGND+5VAVCCOUTGND123OPL550U1VCCOUTGND123OPL550U2VCCOUTGND123OPL550U3VCCOUTGND123OPL550U4AGNDAGNDAGND+5VA100nFC10AGNDOUTBOUTAENBCLKDINAGNDAGND11K8R1310K0R14AGND+4.7uFC12AGNDZ1+8VAAGND+5VB100nFC5AGND+5VBTP1TP2TP3EBCBC817Q1AGND10K0R410K0R3OUTPUTADJGNDNCVINGNDGNDSHDN8765 4321U6LT1129-IS8+100uFC33AGNDBYD17JD41R2R26AGNDEBCBC817Q410K0R11AGND10K0R18+5VAENBCLK12U5OP140A10K0R12AGNDAGNDEBCQ3BC80710K0R10330RR2SELC45SELR361.0uFC37AGND+8VAR28N/I+47uFC29AGNDAGND10nFC30OUTBL110uHAGNDC11.0nFP1AGNDC171nF R22SELAGNDR2120K0C261.0nFD1D1D2D2S1G1S2G21234 5678U9SI9945DYAGNDR390R010K0R8R3410K0R3510K0+5VA+5VAC49SELAGND+C111.0uFD5BAS16R32SEL R5310K0TP4SELC38 SELC39AGNDAGNDC40SELDINLED1AGND680RR33+5VA
DEDANIELSELECTRONICS4-12Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHzThis Page Intentionally Left Blank
DATE: MARCH 22, 1996DWG No:TBADANIELSELECTRONICS VICTORIA, B.C.TITLE: OS-3H ANALOG BOARD THROUGH HOLE BOTTOM LAYOUTBOARD No.:DWG REV DATE: 23 May 2000 (NB)50028-02L61.5µHR261R2L91.5µHL81.5µHL101.5µHL310µHL210µHR51220RC5422uF+C5022µF+++C4222µF+R50180RR40180R C45 SELL71.5µHC371µFC39 SELL110µHR2330RC38SELC49 SELR36 R32R33SEL680RSELLED1+TITLE: OS-3H ANALOG BOARD THROUGH HOLE BOTTOM DESIGNATIONU17VCO1VCO INSTALLED (U17)LVCO-2309 TEV VCO-190-435 MTRX 427.4 - 451.4 MHz TX 406 - 470 MHzR21SELC16100nFDESIGNATION OSR-3H440 RX 427.4 - 451.4 MHzLVCO-2309 TEVOST-3H4xxTX 406 - 470 MHzVCO-190-435 MTC37C38C39C45C49C60R21R32R361.0 µF1.0 µF1.0 µF470 nF33 nFNot InstalledNot Installed4k71k51.5 µF1.5 µF1.5 µF68 nF15 nF0 Ω Wire Jumper2k76k21k2DE DANIELSELECTRONICSEnhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz 4-134.4 OS(R/T)-3H 406 - 470 MHz Analog Board Diagrams4.4.1  OS(R/T)-3H 406 - 470 MHz Analog Board Component Layout (Bottom)OS3450M1CPCB 50028-02
DATE: FEB 24, 1996DWG No:OS3HANA440AS1DANIELSELECTRONICS VICTORIA, B.C.TITLE: UHF OS-3H ANALOG BOARD SURFACE MOUNT TOP LAYOUTBOARD No.:DWG REV DATE: MAY 23, 200050028-02TITLE: OS-3H UHF ANALOG BOARD SURFACE MOUNT TOP DESIGNATIONSC11nFR1410k0R1311k8C647µFC21nFC710nFC12U6LT1129-IS84.7µFQ1BC817R310k0C31nFR410k0R3410k010k0R3510k0C1910nFR2310R0U7LP2951U8LP2951U10SELC2110nFC2210nFC204.7µFC2947µFC3010nFR29SELU9SI9945DYR1510R010R0R2410R04.7µFC134.7µFC154.7µFC274.7µFR1210k01µFC2210nFC261nFR1010k010k0R18C11Q3BC807100nFC5Q4BC81710k0R1147µFC18100nFC100R0R19D5BAS16JU15k11R175k11R16100nFC8100RR5R55k0RV1C261nFC31R91k00R61k00R710k0C1410nFQ2BC817R810k010nFC91nFC2549R9R110k0R5310nFC41nFC170R0R3910R0R2510nFC34C35100pFC36330pFR31274RR3010R0C44330pFC47330pFR4118R2R4747R5R48SELR49SELC44C5510nFR52SELC56330pFR28SELU11MSA-0611U16MSA-0611MSA-0611U1518nHL1218nHL11C5910pF274RR55274RR5618R2R5415pFC5810pFC52330pFC53C46330pFC5110nF27R4R4510nFC4347R5R4447R5R4633R2D4BYD17JR5718R2R58274RMSA-0611Factory Installed JumpersDWG No:OS3HANA440AS2* - INDICATES JUMPERED TO 5VADESIGR28R29U10Not Installed *3k92MC145202F* or MC145193F*OST-3H418TX 406 - 430 MHz OST-3H460TX 450 - 470 MHz10R036k5MC145190OSR-3H440RX 427.4-451.4 MHz10R036k5MC145190R48 47R5 27R427R4R49 10R0 33R233R2R52 Not Installed 49R949R9DWG REV DATE: Dec/11/2000TITLE: UHF OS-3H ANALOG BOARD THOUGH HOLE TOP LAYOUTU2OPL550 U3OPL550 U4OPL550 U1OPL550 U5OP140AJ1J2TITLE: UHF OS-3H ANALOG BOARD THOUGH HOLE TOP DESIGNATIONSTCXO1DE DANIELSELECTRONICSBAR located on bottom side of TCXO4-144.4.2  OS(R/T)-3H 406 - 470 MHz Analog Board Component Layout (Top)Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHzOS3450M2BDesolder three boardinterconnect points toseparate analog anddigital boards..JU1 position B selectedfor internal 9.6 MHzP2P1P3TP3TP1TP4ABLOCK DETECTLEDTP2PCB 50028-02
DESIGNATIONOST-3H418TX 406 - 430 MHzC38C39C45C49C60R32R211.5 µF1.5 µF68 nF15 nF0 Ω Wire Jumper2k7OST-3H460TX 450 - 470 MHz1.5 µF1.5 µF68 nF15 nF0 Ω Wire Jumper2k7U10 MC145202* or MC145193* MC145190* - INDICATES JUMPERED TO +5VAR36R32R366k21k26k21k2R32R36R28R29Not Installed *3k9210R036k5OSR-3H440 RX 427.4 - 451.4 MHz1.0 µF1.0 µF470 nF33 nFNot InstalledNot InstalledMC1451904k71k510R036k5R36R49R5210R0Not Installed33R249R9R36R48 47R5 27R433R249R927R4C37 1.5 µF 1.5 µF1.0 µFVCO INSTALLED (U17)LVCO-2309 TEV VCO-190-435 MTRX 427.4 - 451.4 MHz TX 406 - 470 MHzVICTORIA B.C.DEDANIELS ELECTRONICS DEDANIELSELECTRONICS 11 DEC 00DWG No: OS3450M3D4-154.4.3 OS(R/T)-3H 406 - 470 MHz Analog Board Schematic DiagramBOARD REV: 2.0ABTITLE: OS(R/T)-3H 406 - 470 MHz ANALOG BOARD SCHEMATIC DIAGRAMEnhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHzC57, R22C60L4, L5J2, JU1R58, RV1BOARD No: 50028-02 U17R38,R42,R43R20,R27,R37Q4D1 - D3C40,C41,C48C23,C24,C28U12 - U14DWG REV DATE: DATE: 23 MAY 96TCXO1LED1L12D5DWN BY: COLIN GUNN APRVD:-----UNUSED REFERENCE DESIGNATORSHIGHEST REFERENCE DESIGNATORSTP4 LOOP CONTROLSET FOR ≈ 4.5 VDCRF OUTPUT3.5 dB PadLOCK DETECTOUTPUTACTIVATED WHENUNLOCKEDNCNCNCMODULATION INPUTPOWER CNTRLID≈10 mALOCK DETECTDATA INPUTCLKENABLEACTIVE HIGHTO ALL +8VA SUPPLY POINTSEXTERNAL REFERENCEINPUT (50Ω)FREQ CONTROLTCXO MOD INPUT+9.5 VDC SUPPLYTO ALL +5VA SUPPLY POINTSNCNCREFOUTLDøRøVVPDPDOUTGNDRXTEST 1FINREFINDINCLKENBOUTPUTAOUTPUTBVDDTEST 2VCCFIN1234567891011121314151617181920U10SELAGNDAGNDGNDVCNTRLOUTPUTVCC14239.6 MHzTCXO1AGND1.0nFC31SELR29OUTPUTSENSE5VTAPFBINPUTERRORSHDNGND12674358LP2951U8AGND+4.7uFC15AGND10R0R15+47uFC18AGND5K11R165K11R17AGND3215K0RV1AGND100nFC16+47uFC6AGNDAGND10nFC710nFC14AGND213JU110nFC19+5VAZ2AGND10nFC22AGND10nFC2110R0R2310R0R24+4.7uFC27AGND+4.7uFC20AGND+5VA+5VA100pFC35AGNDAGND10nFC34AGND1.5uHL7+100uFC32AGND10R0R30330pFC36AGND+8VAAGNDIN OUTGND1 34 2MSA-0611U11180RR401.5uHL8+22uFC42AGND10nFC43AGND+8VA330pFC44 18R2R4147R5R4447R5R4733R2R46AGND330pFC46AGNDIN OUTGND1 34 2MSA-0611U15180RR501.5uHL9+22uFC50AGND10nFC51AGND+8VA330pFC5227R4R45330pFC47AGNDIN OUTGND1 34 2MSA-0611U16220RR511.5uHL10+22uFC54AGND10nFC55AGND+8VA330pFC56AGND18nHL11 18nHL1210pFC53 15pFC58 10pFC59AGNDAGNDAGND274RR55AGND18R2R54274RR56AGND01J2AGNDAGND10R0R251.5uHL61.0nFC25AGND10uHL2AGND1.0nFC2P2OUTPUTSENSE5VTAPFBINPUTERRORSHDNGND12674358LP2951U7AGND+4.7uFC13AGND10uHL3AGND1.0nFC3P3EBCBC817Q2J110K0R71K00R61K00R9AGNDAGND10nFC4 10nFC9AGND49R9R1AGND100RR5100nFC8AGND+5VAVCCOUTGND123OPL550U1VCCOUTGND123OPL550U2VCCOUTGND123OPL550U3VCCOUTGND123OPL550U4AGNDAGNDAGND+5VA100nFC10AGNDOUTBOUTAENBCLKDINAGNDAGND11K8R1310K0R14AGND+4.7uFC12AGNDZ1+8VAAGND+5VB100nFC5AGND+5VBTP1TP2TP3EBCBC817Q1AGND10K0R410K0R3OUTPUTADJGNDNCVINGNDGNDSHDN8765 4321U6LT1129-IS8+100uFC33AGNDBYD17JD41R2R26AGNDEBCBC817Q410K0R11AGND10K0R18+5VAENBCLK12U5OP140A10K0R12AGNDAGNDEBCQ3BC80710K0R10330RR2SELC45SELR36SELC37AGND+8VASELR28+47uFC29AGNDAGND10nFC30OUTBL110uHAGNDC11.0nFP1AGNDC171.0nFR21SELC261.0nFD1D1D2D2S1G1S2G21234 5678U9SI9945DYAGNDR390R010K0R8R3410K0R3510K0+5VA+5VAC49SELAGND+C111.0uFD5BAS16R32SEL R5310K0TP4SELC38 SELC39AGNDAGNDDINLTL-93BEK1LED1AGND680RR33AGNDAGNDAGNDAGNDBand Pass Filter (Optional)1 2F1GNDMOD I/PGNDGNDGND MOD GND GNDGNDRF OUTGNDGNDGND VCCGND GNDVCO12345678910111213141516U17R58274RR5718R2R31274RSELC60SELR49SELR48AGNDSELR52R190R0
DEDANIELSELECTRONICS4-16Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHzThis Page Intentionally Left Blank
DWG No: OS3HDIGAS3ATITLE: OS-3H DIGITAL BOARD SOLDER SIDE SM LAYOUTDATE: 31 MARCH 1997 BOARD No.: 50021-03REV DATE: 14 SEP 1999DANIELSELECTRONICS VICTORIA, B.C.C84.7uFU3MC33064 R86k81 R1927k4C9100nFQ9BC817U4168HC11E2X1 8.0MhzC722pFR1110M0C622pFR3927k4R427k4R1027k4 R2510k0Q2BC817R2410k0L110uHC547uFC347uF U1SI9933YU2LP2951C447uFR627k4D3BAS16DWG No: OS3HDIGAS4BTITLE: OS-3H DIGITAL BOARD SOLDER SIDE SM VALUE / DESIGNATIONJU2REV DATE: 14 SEPTERMBER 1998C1510uF JU1U9OPL550U8OP140AU7OP140AU6OP140AU5OP140AP1 1ROW x 12P1ROW x 9PP2 1ROW x 6P4.5 OS(R/T)-3(A/H) Digital Board Diagrams4.5.1 OS(R/T)-3(A/H) Digital Board Component Layout (Bottom)DE DANIELSELECTRONICS4-17Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHzOS3150M4APCB 50021-03JU29.6 MHz REFERENCE 10 MHz REFERENCENOT INSTALLED INSTALLEDJU1OSx-3H29-470 MHz OSx-3A118-159.6 MHzNOT INSTALLED INSTALLED
DATE: 25 MARCH 1996DWG No: OS3HDIGAS TITLE: OS-3H DIGITAL BOARD COMPONENT SIDEBOARD No.: 50021-03REV DATE: 14 SEP 99DWG No: OS3HDIGAS1 TITLE: OS-3H DIGITAL BOARD COMPONENT SIDE SM LAYOUTDWG No: OS3HDIGAS1ADANIELSELECTRONICS VICTORIA, B.C.R10R0R2027k4R3427k4 R3627k4R1227k4 R1827k4R3827K4R2127k4R927k4R727k4R3527k4R3727k4R2227k4 R527k4R2827k4R2927k4R1327k4R1427k4R1527k4R1627k4R2727k4R2610k0R 1727k4R 33332RR 32215RR 31215RC10100nFC11100nFC12100nFC13100nFC14100nFR 30215RR 2310k0R 327k4R 227k4 C1100nFC2100nFQ11BC817Q8BC817Q7BC817Q6BC817Q5BC817Q4BC817Q3BC817Q1BC817Q10BC817D1BAS16D2BAS16D4BAS16R4027k4DWG No: OS3HDIGAS2BTITLE: OS-3H DIGITAL BOARD COMPONENT SIDE SM VALUE / DESIGNATIONR41221kREV DATE: 10 MAY 2000DE DANIELSELECTRONICS4-18 Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz4.5.2 OS(R/T)-3(A/H) Digital Board Component Layout (Top) OS3150M5BPCB 50021-03
VICTORIA B.C.DEDANIELS ELECTRONICS DEDANIELSELECTRONICSDWG No: OS3150M6B DWG REV DATE: 14 APRIL 2000 4-194.5.3 OS(R/T)-3(A/H) Digital Board Schematic DiagramBOARD REV: 3.0C15R41BOARD No: 50021-03 TITLE: OS(R/T)-3(A/H) DIGITAL BOARD SCHEMATIC DIAGRAMEnhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHzJ4----------JU1JU2Q11 U9X1DWN BY: STAN P------------------------------UNUSED REFERENCE DESIGNATORSAPRVD:DATE: 23 APRIL 1992----- -----HIGHEST REFERENCE DESIGNATORSDATA OUTPUT+12V PRG PRIORITY CORLOCK DETECT INPUTPOWER CONTROLCLKENABLEACTIVE HIGHCHAN SEL1 (I/P)TCXO MOD INPUT +9.5 VDC SUPPLYMODULATION INPUTTCXO MOD INPUT RX MUTEMODULATION INPUTPOWER DOWN (I/P)TO ALL +5 VDC SUPPLY POINTSPC7 (I/P)PC6 (I/P)PC5 (I/P)PC4 (I/P)+9.5 VDC SUPPLY PTT (I/P) A(L) BOOTSTRAP (I/P)SW4 COM (O/P)SW3 COM (O/P)SW2 COM (O/P)SW1 COM (O/P)RX DATA (I/P)TX DATA (O/P)PTT CONTROL (O/P)CHAN SEL0 (I/P)CHAN SEL2 (I/P)CHAN SEL3 (I/P)6K81R8 123BC817Q8BC817Q9BC817Q1027K4R2727K4R3427K4R3527K4R36BC817Q1127K4R2227K4R3727K4R13100nFC9BC817Q327K4R2BC817Q1BC817Q2123BC817Q4BC817Q5BC817Q6ENBCLKDINLOCKDINPWCTLOUTPUTSENSE5VTAPFBINPUTERRORSHDNGND12674358U2LP2951P2-2P2-1P2-6P2-3P1-1P2-4P1-9P1-17VSSMODAASER/WEXTALXTALPC7PC6PC5PC4PC3PC2PC1PC0RESETXIRQIRQPD5PD4PD3PD2PD1PD0VDDMODBVRHPE7PE6PE5PE4PE3PE2PE1PE0PB7PB6PB5PB4PB3PB2PB1PB0PA7PA6PA5PA4PA3PA2PA1PA0VRL1234567816151413121110917181925242322212026 343332313029282742414039383736354345474944464850515268HC811E2U4D1D1D2D2S1G1S2G21234 5678SI9933DYU1P1-12P1-19P1-11P1-5P1-13P1-6P1-14P1-15P1-8P1-16R1427K4 R1627K4 27K4R17DGNDDGNDDGNDDGNDDGNDDGNDDGNDDGNDDGNDDGNDDGNDDGNDDGNDDGNDDGNDDGNDDGNDDGNDDGNDDGNDDGND+5VD+5VD+5VD+5VDR1527K4+5VD+5VD+5VD+5VD+5VD+5VDDGND+5VD+5VDDGNDDGNDP1-427K4R527K4R30R0R127K4R627K4R410K0R2310K0R2410K0R2510K0R26215RR32215RR31215RR30P1-1P1-2P1-4P1-5P1-6P1-8P1-9P1-11P1-12P1-13P1-14P1-16P1-17P1-18P1-19P1-20P1-15C1100nF C2100nF27K4R12 27K4R18 27K4R19 27K4R20+4.7uFC8+47uFC5TP1+47uFC4INGNDRESET124MC33064U3DGND10.0uHL1+47uFC3DGNDP1-20+5VDP1-12B123456P21J21J1123456789101112131415161718192021P1P1-12BDGNDLOCKCLKENBR2127K4DGNDR2927K4R927K4R2827K427K4R7R1027K4218.0 MhzX1R1110M0DGNDP2-1P2-2P2-3P2-4P2-61J3P1-18C722pFTP2P1-2DGNDDGNDR33332RR3827K41J4+5VD27K4R39+5VDDGNDPWCTLDGNDBC817Q7DGNDC11100nF C10100nFC12100nFC13100nFC14100nFDGNDDGNDC622pFBAS16D1BAS16D2BAS16D3BAS16D4+5VD27K4R40JU2DGND221K0R4110uFC15DGNDJU1123OP140AU8DGND123OP140AU7DGND123OP140AU6DGND123OP140AU5DGNDVCCOUTGND1234U9OPL550DGNDP1-17
DEDANIELSELECTRONICS4-20Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHzThis Page Intentionally Left Blank
Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz 5-15. PARTS LISTSThis is hidden text.5.1 OS(R/T)-3H 29 - 71.4 MHz Analog Board Electrical Parts ListRef.Desig Description Part No.C1 - C3 CAP., SM 1.0nF CER., 0805, X7R, 50V 1008-3A102K5RC4 CAP., SM 10nF CER, 0805, X7R, 50V 1008-4A103K5RC5 CAP., SM 100nF CER., 0805, X7R, 50V 1008-5A104K5RC6 CAP., SM 47uF TANT., 20%, 16V 1055-6D476M16C7 CAP., SM 10nF CER, 0805, X7R, 50V 1008-4A103K5RC8 CAP., SM 100nF CER., 0805, X7R, 50V 1008-5A104K5RC9 CAP., SM 10nF CER, 0805, X7R, 50V 1008-4A103K5RC10 CAP., SM 100nF CER., 0805, X7R, 50V 1008-5A104K5RC11CAP., SM 1.0uF TANT., 10%, 16V 1055-5A105M16 C12CAP., SM 4.7uF TANT., 10%, 16V1055-5B475K16C13 CAP., SM 4.7uF TANT., 10%, 16V1055-5B475K16C14 CAP., SM 10nF CER, 0805, X7R, 50V 1008-4A103K5RC15 CAP., SM 4.7uF TANT., 10%, 16V1055-5B475K16C16 CAP., SM 1.0nF CER., 0805, X7R, 50V 1008-3A102K5RC17CAP., SM 1.0nF CER., 0805, X7R, 50V 1008-3A102K5RC18 CAP., SM 47uF TANT., 20%, 16V 1055-6D476M16C19 CAP., SM 10nF CER, 0805, X7R, 50V 1008-4A103K5RC21 CAP., SM 10nF CER, 0805, X7R, 50V 1008-4A103K5RC20 CAP., SM 4.7uF TANT., 10%, 16V1055-5B475K16C22 CAP., SM 10nF CER, 0805, X7R, 50V 1008-4A103K5RC23 CAP., SM, 150pF CER., 0805,C0G 1008-2A151J1G OST-3H035C23 CAP., SM, 100pF CER., 0805,C0G 1008-2A101J1G OST-3H045C23 CAP., SM, 56pF CER., 0805, C0G 1008-1A560J1G OSR-3H061C24CAP., 1-14pF TRIM., STAND. >6 1082-A1R0014JC25 CAP., SM 1.0nF CER., 0805, X7R, 50V 1008-3A102K5RC26 CAP., SM 1.0nF CER., 0805, X7R, 50V 1008-3A102K5RC27CAP., SM 4.7uF TANT., 10%, 16V1055-5B475K16C28 CAP., SM 1.0nF CER., 0805, X7R, 50V 1008-3A102K5RC29CAP., SM 47uF TANT., 20%, 16V 1055-6D476M16C30 CAP., SM 10nF CER, 0805, X7R, 50V 1008-4A103K5RC31 CAP., SM 1.0nF CER., 0805, X7R, 50V 1008-3A102K5RC32, C33 CAP., SM, 100uF TANT., 20%,16V 1055-7D107M16C34 CAP., SM, 56pF CER., 0805, C0G 1008-1A560J1G OST-3H035C34 CAP., SM, 47pF CER., 0805, C0G 1008-1A470J1G OST-3H045C34 CAP., SM, 33pF CER., 0805, C0G 1008-1A330J1G OSR-3H061C35CAP., SM 10pF CER., 0805, COG 1008-1A100J1GC36 CAP., SM 330pF CER., 0805, COG 1008-2A331J1GC37, C38CAP., 1.0uF FILM, MMK5, 10%, 63V 1016-6D105K50C39 CAP., 1.0uF FILM, MMK5,10%,50V 1016-6D105K50C40CAP., SM 33pF CER., 0805, COG 1008-1A330J1GC41CAP., SM 1.0nF CER., 0805, X7R, 50V 1008-3A102K5RC42 CAP., 22uF DIP. TANT., 20%, 20V 1054-6G226M20C43 CAP., SM 10nF CER, 0805, X7R, 50V 1008-4A103K5RC44 CAP., SM 330pF CER., 0805, COG 1008-2A331J1GC45CAP., 470nF FILM, MMK5,10%,63V 1016-5D474K63 C46 CAP., SM 330pF CER., 0805, COG 1008-2A331J1GC47 CAP., SM 330pF CER., 0805, COG 1008-2A331J1G
5-2Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHzRef.Desig Description Part No.C48 CAP., 68nF FILM, MMK5, 10%,63V 1016-4A683K63 OST-3H035C48 CAP., 68nF FILM, MMK5, 10%,63V 1016-4A683K63 OST-3H045C48 CAP., Not InstalledNot InstalledOSR-3H061C49CAP., 22nF FILM, MMK5, 10%,63V 1016-4A223K63C50 CAP., 22uF DIP. TANT., 20%, 20V 1054-6G226M20C51 CAP., SM 10nF CER, 0805, X7R, 50V 1008-4A103K5RC52 CAP., SM 330pF CER., 0805, COG 1008-2A331J1GC53CAP., SM, 56pF CER., 0805, C0G 1008-1A560J1G OST-3H035C53 CAP., SM, 56pF CER., 0805, C0G 1008-1A560J1G OST-3H045C53 CAP., SM, Not InstalledNot InstalledOSR-3H061C54CAP., 22uF DIP. TANT., 20%, 20V 1054-6G226M20C55CAP., SM 10nF CER, 0805, X7R, 50V 1008-4A103K5RC56 CAP., SM 330pF CER., 0805, COG 1008-2A331J1GC57 CAP., SM, 15pF CER., 0805, COG 1008-1A150J1G OST-3H035C57 CAP., SM, 15pF CER., 0805, COG 1008-1A150J1G OST-3H045C57 CAP., SM, 68pF CER., 0805, C0G 1008-1A680J1G OSR-3H061C58CAP., SM, 33pF CER., 0805, C0G 1008-1A330J1G OST-3H035C58 CAP., SM, 33pF CER., 0805, C0G 1008-1A330J1G OST-3H045C58 CAP., SM, 68pF CER., 0805, C0G 1008-1A680J1G OSR-3H061C59CAP., SM, 33pF CER., 0805, C0G 1008-1A330J1G OST-3H035C59 CAP., SM, 33pF CER., 0805, C0G 1008-1A330J1G OST-3H045C59 CAP., SM, 100pF CER., 0805,C0G 1008-2A101J1G OSR-3H061C61CAP., SM, 150pF CER., 0805,C0G 1008-2A151J1G OST-3H035C61 CAP., SM, 100pF CER., 0805,C0G 1008-2A101J1G OST-3H045C61 CAP., SM, 56pF CER., 0805, C0G 1008-1A560J1G OSR-3H061C62 CAP., SM, 47pF CER., 0805, C0G 1008-1A470J1G C63CAP., SM, 22pF CER., 0805, C0G 1008-1A220J1GC64CAP., SM, 12pF CER., 0805, C0G 1008-1A120J1GD1, D2 DIODE, MMBV609L VARICAP, SOT-232106-MMBV609LD3 DIODE, MMBD701 HOT_CARR. SOT23 2105-MMBD7010D4 DIODE, BYD17J RECTIFIER, SOD872101-BYD17J00D5 DIODE, BAS16 SWITCHING, SOT23 2100-BAS16000L1 - L4 CHOKE, RF/MOULD.10uH 10%,.25 1251-4A00100KL5INDUCTOR,13.5T/260nH,MOLD.,ORG1253-A1352603 OST-3H035L5 INDUCTOR,11.5T/197nH,MOLD.,BRN 1253-A1151971 OST-3H045L5 INDUCTOR, 9.5T/138nH,MOLD.,WHT 1253-A0951389 OSR-3H061L6 CHOKE, RF/MOULD.10uH 10%,.25 1251-4A00100KL7 CHOKE, RF/MOULD.4.7uH 10%,.251251-TBAL8 - L10CHOKE, RF/MOULD.1.5uH 10%,.25 1251-3A001R5KL11INDUCTOR,SM,100nH CER,10%,10081256-2BR1000K OST-3H035L11 INDUCTOR,SM,100nH CER,10%,10081256-2BR1000K OST-3H045L11 INDUCTOR,SM,120nH CER,10%,10081256-2BR12OOKOSR-3H061L12 CHOKE, RF/MOULD.,4.7uH,10%,.251251-3A004R7KL13INDUCTOR,SM,100nH CER,10%,10081256-2BR1000K OST-3H035L13 INDUCTOR,SM,100nH CER,10%,10081256-2BR1000K OST-3H045L13INDUCTOR,SM,120nH CER,10%,10081256-2BR12OOKOSR-3H061LED1 LED, SUB-MIN., 2mm SQ,AXIAL,ORG 2012-S229013CPCBPCB, ANALOG,OS-3H VHF 30-50MHz 4309-26500382
Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz 5-3Ref.Desig Description Part No.Q1, Q2 TRANSISTORBC817 NPN, SOT23 2120-BC817025Q3 TRANSISTORBC807 PNP, SOT23 2120-BC807025 Q4 TRANSISTORBC817 NPN, SOT23 2120-BC817025Q5JFET, J211 RF N-CHAN. TO-92 2041-J2110000RV1POT., SM 5K0 1T, TOP ADJ 1174-AS2502J1R1 RES., SM 49R9 0805, 1%,100ppm 1150-1A49R9FPR2RES.330R METAL FILM, 5%, 0.5W 1101-2A0331JPR3, R4 RES., SM 10K0 0805, 1%,100ppm 1150-4A1002FPR5RES., SM 100R 0805, 1%,100ppm 1150-2A1000FPR6 RES., SM 1K00 0805, 1%,100ppm 1150-3A1001FPR7, R8 RES., SM 10K0 0805, 1%,100ppm 1150-4A1002FPR9RES., SM 1K00 0805, 1%,100ppm 1150-3A1001FPR10 - R12 RES., SM 10K0 0805, 1%,100ppm 1150-4A1002FPR13RES., SM 11K8 0805, 1%,100ppm 1150-4A1182FPR14 RES., SM 10K0 0805, 1%,100ppm 1150-4A1002FPR15 RES., SM 10R0 0805, 1%,100ppm 1150-1A10R0FPR16, R17RES., SM, 5K11 0805, 1%,100ppm 1150-3A5111FPR18, R19 RES., SM 10K0 0805, 1%,100ppm 1150-4A1002FPR20 RES., SM 10R0 0805, 1%,100ppm 1150-1A10R0FPR21RES., SM 20K0 0805, 1%,100ppm 1150-4A2002FPR22RES., SM, 475R 0805, 1%,100ppm 1150-2A4750FPR23 - R25 RES., SM 10R0 0805, 1%,100ppm 1150-1A10R0FPR26RES.1R2 METAL FILM, 5%, 0.5W 1101-0A01R2JIR27RES., SM 15K0 0805, 1%,100ppm 1150-4A1502FPR28 RES., NOT INSTALLED NOT INSTALLEDR29RES., SM 18K2 0805, 1%,100ppm 1150-4A1822FPR30RES., SM 10R0 0805, 1%,100ppm 1150-1A10R0FPR31 RES., SM 49R9 0805, 1%,100ppm 1150-1A49R9FPR32RES., 15K METAL FILM, 5%, 0.5W 1101-4A0153JP R33RES.680R METAL FILM, 5%, 0.5W 1101-2A0681JPR34, R35RES.10K0 METAL FILM, 5%, 0.5W 1101-4A0103JPR36 RES., 2K7 METAL FILM, 5%, 0.5W 1101-3A0272JPR38RES., SM 56R2 0805, 1%,100ppm 1150-4A5622FPR39RES., SM 0R00 0805, ZERO OHM JUMPER 1150-0A0R0000R40 RES.180R METAL FILM, 5%, 0.5W 1101-2A0181JPR41 RES., SM 18R2 0805, 1%,100ppm 1150-1A18R2FPR44 RES., SM 47R5 0805, 1%,100ppm 1150-1A47R5FPR45 RES., SM 27R4 0805, 1%,100ppm 1150-1A27R4FPR46 RES., SM 33R2 0805, 1%,100ppm 1150-1A33R2FPR47RES., SM 47R5 0805, 1%,100ppm 1150-1A47R5FPR48RES., SM 27R4 0805, 1%,100ppm 1150-1A27R4FPR49RES., SM 33R2 0805, 1%,100ppm 1150-1A33R2FPR50RES.180R METAL FILM, 5%, 0.5W 1101-2A0181JPR51RES.220R METAL FILM, 5%, 0.5W 1101-2A0221JPR52RES., SM 49R9 0805, 1%,100ppm 1150-1A49R9FPR53RES., SM 10K0 0805, 1%,100ppm 1150-4A1002FPR54RES., SM 18R2 0805, 1%,100ppm 1150-1A18R2FPR55 R56RES., SM 274 0805, 1%,100ppm 1150-2A2740FPTCXO1 VTCXO MODULE9.6 MHz 4 PIN, +- 1ppm 2641-09600BM5
5-4Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHzRef.Desig Description Part No.U1 - U4DIODE, OPL550 I/R SENSOR,TTL O/P,PLST2014-1L18230TU5 LED, OP140A I/R,GaAs,.81 x .23,PLAST.2013-1G18230AU6I.C., LT1129-IS8, PROG. VOLT REG, SO8 2305-11290N08U7, U8I.C., LP2951 PROG. VOLT REG, SO-8 2305-29510N08U9MOSFET, SI9945DY, N CHAN.,SO-8 2142-SI9945DYU10I.C., MC145191, PLL FREQ/SYNTH, SO-20 2355-45191N20U11 I.C., MSA-0611, MM1C AMP, SOT-143 2354-MSA06110U15 U16I.C., MSA-0611, MM1C AMP, SOT-143 2354-MSA06110
Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz 5-55.2 OS(R/T)-3A 118 - 159.4 MHz Analog Board Electrical Parts ListRef.Desig Description Part No.C1- C3CAP., SM ,1.0nF CER., 0805, X7R, 50V 1008-3A102K5RC4CAP., SM, 10nF CER, 0805, X7R, 50V 1008-4A103K5RC5CAP., SM, 100nF CER., 0805, X7R, 50V 1008-5A104K5RC6CAP., SM, 47uF TANT., 20%, 16V 1055-6D476M16C7CAP., SM, 10nF CER, 0805, X7R, 50V 1008-4A103K5RC8CAP., SM, 100nF CER., 0805, X7R, 50V 1008-5A104K5RC9CAP., SM, 10nF CER, 0805, X7R, 50V 1008-4A103K5RC10CAP., SM, 100nF CER., 0805, X7R, 50V 1008-5A104K5RC11CAP., SM, 1.0uF TANT., 10%, 16V 1055-5A105M16C12CAP., SM, 4.7uF TANT., 10%, 16V1055-5B475K16C13CAP., SM, 4.7uF TANT., 10%, 16V 1055-5B475K16C14CAP., SM, 10nF CER, 0805, X7R, 50V 1008-4A103K5RC15CAP., SM, 4.7uF TANT., 10%, 16V1055-5B475K16C16, C17CAP., SM ,1.0nF CER., 0805, X7R, 50V 1008-3A102K5RC18CAP., SM, 47uF TANT., 20%, 16V 1055-6D476M16C19CAP., SM, 10nF CER, 0805, X7R, 50V 1008-4A103K5RC20CAP., SM, 4.7uF TANT., 10%, 16V1055-5B475K16C21, C22CAP., SM, 10nF CER, 0805, X7R, 50V 1008-4A103K5RC23CAP., SM, 10pF CER., 0805, C0G 1008-1A100J1G(OST-3A128)C23CAP., NOT INSTALLED NOT INSTALLED (OSR-3A149)C24CAP., SM ,1.0nF CER., 0805, X7R, 50V 1008-3A102K5RC25CAP., NOT INSTALLED NOT INSTALLEDC26CAP., SM ,1.0nF CER., 0805, X7R, 50V 1008-3A102K5RC27CAP., SM, 4.7uF TANT., 10%, 16V1055-5B475K16C28CAP., SM, 6.8uF TANT., 20%, 10V 1055-5B685M10C29CAP., SM, 47uF TANT., 20%, 16V 1055-6D476M16C30CAP., SM, 10nF CER, 0805, X7R, 50V 1008-4A103K5RC31CAP., SM ,1.0nF CER., 0805, X7R, 50V 1008-3A102K5RC32, C33CAP., SM, 100uF TANT., 20%,16V 1055-7D107M16C34CAP., SM, 10nF CER, 0805, X7R, 50V 1008-4A103K5RC35CAP., SM, 5.6pF CER., 0805, C0G 1008-0A569D1GC36CAP., SM, 3.3pF CER., 0805,C0G 1008-0A339J1GC37CAP., 470nF FILM, MMK5,10%,63V 1016-5D474K63(OST-3A128)C37CAP., 1.0uF FILM, MMK5,10%,50V 1016-6D105K50 (OSR-3A149)C38CAP., 100nF FILM, MMK5,10%,63V 1016-5A104K63 (OST-3A128)C38CAP., 1.0uF FILM, MMK5,10%,50V 1016-6D105K50 (OSR-3A149)C39CAP., NOT INSTALLED NOT INSTALLED(OST-3A128)C39CAP., 1.0uF FILM, MMK5,10%,50V 1016-6D105K50 (OSR-3A149)C40CAP., SM, 8.2pF CER., 0805,C0G 1008-0A829J1G (OSR-3A149)C40CAP., NOT INSTALLED NOT INSTALLED(OST-3A128)C41CAP., SM, 100nF CER., 0805, X7R, 50V 1008-5A104K5RC42CAP., 22uF DIP. TANT., 20%, 20V 1054-6G226M20C43CAP., SM, 10nF CER, 0805, X7R, 50V 1008-4A103K5RC44CAP., SM, 330pF CER., 0805, COG 1008-2A331J1GC45CAP., 470nF FILM, MMK5,10%,63V 1016-5D474K63 (OSR-3A149)C45CAP., 330nF FILM, MMK5,10%,50V1016-5B334K50(OST-3A128)C46CAP., SM, 10nF CER, 0805, X7R, 50V 1008-4A103K5RC47CAP., SM, 330pF CER., 0805, COG 1008-2A331J1GC48CAP., SM, 100nF CER., 0805, X7R, 50V 1008-5A104K5RRef.
5-6Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHzDesig Description Part No.C49CAP., 22nF FILM, MMK5, 10%,63V 1016-4A223K63 (OSR-3A149)C49CAP., 2.2nF FILM, MMK5,10%,63V 1016-3A222K63(OST-3A128)C50, C51CAP., SM, 100nF CER., 0805, X7R, 50V 1008-5A104K5RC52CAP., SM, 10nF CER, 0805, X7R, 50V 1008-4A103K5RC53CAP., SM, 27pF CER., 0805, COG 1008-1A270J1GC58CAP., SM, 47pF CER., 0805, COG 1008-1A470J1GC59CAP., SM, 27pF CER., 0805, COG 1008-1A270J1GC60CAP., SM, 2.2uF TANT., 20%, 20V1055-5B225K20C61CAP., SM, 4.7uF TANT., 10%, 16V 1055-5B475K16C62CAP., SM, 10nF CER, 0805, X7R, 50V 1008-4A103K5RC63CAP., 680nF FILM, MMK5,10%,50V 1016-5D684K50D1, D2 DIODE, MMBV609L VARICAP, SOT-232106-MMBV609LD3 DIODE, MMBD701L HOT CARR., SOT23 2105-MMBD7010D4 DIODE, BYD17J RECTIFIER, SOD87 2101-BYD17J00D5 DIODE, BAS16 SWITCHING, SOT23 2100-BAS16000D6, D7 DIODE, SMV1211, VARACTOR,SOT2 2106-SMV12111 (OSR-3A149)D6 DIODE,SMV1212-4,VARACTOR,SOT23 2106-SMV12124(OST-3A128)D7 DIODE, SMV1211, VARACTOR,SOT2 2106-SMV12111 (OSR-3A149)D7 DIODE, NOT INSTALLED NOT INSTALLED(OST-3A128)L2, L3 CHOKE, RF/MOULD., 10uH 10%,.25 1251-4A00100KL4 CHOKE, RF/MOULD., 3.9uH 10%,.25 1251-3A003R9KL5BOBBIN 5.5 TURNS, 1.59 mm pitch 5791-A1010300WIRE, COPPER, 20AWG, SILVER PLD, 10.2cm 7140-30002000(1pc 10cm, 2pcs10mm)L6 - L8CHOKE, RF/MOULD., 1.5uH 10%,.25 1251-3A001R5KL11, L12 INDUCTOR, SM, 47nH CER,10%,10081256-1B47N00KL13 CHOKE, RF/MOULD., 1.5uH 10%,.25 1251-3A001R5KLED1 LED, SUB-MIN.,2mm SQ,AXIAL,ORG 2012-S229013CPCBPCB, ANALOG,OS-3H AM/WB SYNTH. 4309-26500825Q1, Q2TRANSISTOR, BC817 NPN, SOT23 2120-BC817025Q3TRANSISTOR, BC807 PNP, SOT23 2120-BC807025Q4TRANSISTOR, BC817 NPN, SOT23 2120-BC817025Q5JFET, J211 RF, N-CHAN., TO-92A 2041-J2110000Q6TRANSISTOR, MMBR901 HIGH FREQ. 2124-MMBR9010R1 RES., SM, 49R9 0805, 1%,100ppm 1150-1A49R9FPR2RES., 330R METAL FILM, 5%, 0.5W 1101-2A0331JPR3, R4RES., SM, 10K0 0805, 1%,100ppm 1150-4A1002FPR5RES., SM, 100R 0805, 1%,100ppm 1150-2A1000FPR6RES., SM, 1K00 0805, 1%,100ppm 1150-3A1001FPR7, R8RES., SM, 10K0 0805, 1%,100ppm 1150-4A1002FPR9RES., SM, 1K00 0805, 1%,100ppm 1150-3A1001FPR10 - R12RES., SM, 10K0 0805, 1%,100ppm 1150-4A1002FPR13RES., SM, 11K8 0805, 1%,100ppm 1150-4A1182FPR14RES., SM, 10K0 0805, 1%,100ppm 1150-4A1002FPR15RES., SM, 10R0 0805, 1%,100ppm 1150-1A10R0FPR16, R17RES., SM, 5K11 0805, 1%,100ppm 1150-3A5111FPR18, R19RES., SM, 10K0 0805, 1%,100ppm 1150-4A1002FP
Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz 5-7Ref.Desig Description Part No.R20RES., SM, 10R0 0805, 1%,100ppm 1150-1A10R0FPR22RES., SM, 137K0 0805, 1%,100ppm 1150-5A1373FPR23 - R25RES., SM, 10R0 0805, 1%,100ppm 1150-1A10R0FPR26RES., 1R2 METAL FILM, 5%, 0.5W 1101-0A01R2JIR27RES., SM, 11K8 0805, 1%,100ppm 1150-4A1182FPR28RES., SM, 10R0 0805, 1%,100ppm 1150-1A10R0FPR29RES., SM, 18K2 0805, 1%,100ppm 1150-4A1822FPR30RES., SM, 10R0 0805, 1%,100ppm 1150-1A10R0FPR31RES., SM, 100R 0805, 1%,100ppm 1150-2A1000FPR32RES., 15K METAL FILM, 5%, 0.5W 1101-4A0153JP (OSR-3A149)R32RES., 68K METAL FILM, 5%, 0.5W 1101-4A0683JP(OST-3A128)R33RES., 680R METAL FILM, 5%, 0.5W 1101-2A0681JPR34, R35RES., SM, 10K0 0805, 1%,100ppm 1150-4A1002FPR36RES., 1K8 METAL FILM, 5%, 0.5W 1101-3A0182JP (OSR-3A149)R36RES., 8K2 METAL FILM, 5%, 0.5W 1101-3A0822JP(OST-3A128)R37, R38RES., SM, 49K9 0805, 1%,100ppm 1150-4A4992FPR39RES., SM, 0R00 0805, ZERO OHM JUMPER 1150-0A0R0000R40RES., 330R METAL FILM, 5%,0.5W 1101-2A0391JPR41RES., SM, 20K0 0805, 1%,100ppm 1150-4A2002FPR42RES., SM, 100K 0805, 1%,100ppm 1150-5A1003FPR43RES., SM, 137K0 0805, 1%,100ppm 1150-5A1373FPR44RES., SM, 1K82 0805, 1%,100ppm 1150-3A1821FPR45RES., SM, 18R2 0805, 1%,100ppm 1150-1A18R2FPR46RES., SM, 475R0 0805, 1%,100ppm 1150-2A4750FPR53RES., SM, 100K 0805, 1%,100ppm 1150-5A1003FPR57RES., SM, 274K 0805, 1%, 100ppm 1150-5A2743FPR58RES., SM, 825K0 1206, 1%,100ppm 1150-5B8253FPR59RES., SM, 10K0 0805, 1%,100ppm 1150-4A1002FPR60RES., SM, 68K1 0805, 1%,100ppm 1150-4A6812FP (OSR-3A149)R60RES., SM, 39K2 0805, 1%,100ppm 1150-4A3922FP(OST-3A128)R61RES., SM, 20K0 0805, 1%,100ppm 1150-4A2002FPR62RES., SM, 4K75 0805, 1%,100ppm 1150-3A4751FPR63RES., SM, 10R0 0805, 1%,100ppm 1150-1A10R0FPRV1POT., SM, 5K0 1T, TOP ADJ 1174-AS2502J1TCXO1 VTCXO MODULE9.6 MHz 4 PIN, +- 1ppm 2641-09600BM5U1 - U4DIODE, OP950 I/R SENSOR,TTL O/P,PLSTTBAU5 LED, OP140A I/R,GaAs,.81 x .23,PLAST.2013-1G18230AU6 IC, LT1129-IS8, PROG. VOLT REG,SO-8 2305-11290N08U7, U8 IC, LP2951 PROG. VOLT REG, SO-8 2305-29510N08U9MOSFET, SI9945DY, N CHAN.,SO-8 2142-SI9945DYU10 IC, MC145190,PLL FREQ/SYNTH,SO-20 2355-45190N20U11 IC, MSA-0611, MM1C AMP,SOT-143 2354-MSA06110U17 IC, LTC1257I 12BIT SER.DA,S0-82387-12570N08U18 IC, PIC12C672 MICROCONTROLLER, SO-8 TBAU19 IC, MC33172 DUAL OP AMP, SO-8 2302-33172N08U20 IC, 74HC14 HEX SCHMITT, SO-14 2376-00140N14
5-8Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz5.3 OS(R/T)-3H 128 - 174 MHz Analog Board Electrical Parts ListRef.Desig Description Part No.C1-C3CAP., SM, 1.0nF CER., 0805, X7R, 50V 1008-3A102K5RC4CAP., SM, 10nF CER, 0805, X7R, 50V 1008-4A103K5RC5CAP., SM, 100nF CER., 0805, X7R, 50V 1008-5A104K5RC6CAP., SM, 47µF TANT., 20%, 16V 1055-6D476M16C7CAP., SM, 10nF CER, 0805, X7R, 50V 1008-4A103K5RC8CAP., SM, 100nF CER., 0805, X7R, 50V 1008-5A104K5RC9CAP., SM, 10nF CER, 0805, X7R, 50V 1008-4A103K5RC10CAP., SM, 100nF CER., 0805, X7R, 50V 1008-5A104K5RC11CAP., SM, 1.0µF TANT., 10%, 16V 1055-5A105M16 C12CAP., SM, 4.7µF TANT., 10%, 16V 1055-5B475K16C13CAP., SM, 4.7µF TANT., 10%, 16V 1055-5B475K16C14CAP., SM, 10nF CER, 0805, X7R, 50V 1008-4A103K5RC15CAP., SM, 4.7µF TANT., 10%, 16V 1055-5B475K16C16CAP., SM, 1.0nF CER., 0805, X7R, 50V 1008-3A102K5RC17CAP., SM 1.0nF CER., 0805, X7R, 50V 1008-3A102K5RC18CAP., SM, 47µF TANT., 20%, 16V 1055-6D476M16C19CAP., SM, 10nF CER, 0805, X7R, 50V 1008-4A103K5RC20CAP., SM, 4.7µF TANT., 10%, 16V 1055-5B475K16C21,C22CAP., SM, 10nF CER, 0805, X7R, 50V 1008-4A103K5RC23CAP., SM, 12pF CER., 0805, COG 1008-1A120J1G (OS-3H141)C23CAP., SM, 6.8pF CER., 0805,C0G 1008-0A689J1G (OS-3H162)C24CAP., TRIM., 1-14pF STAN. >6T 1082-A1R0014JC25CAP., SM, 1.0nF CER., 0805, X7R, 50V 1008-3A102K5R (OS-3H141)C25CAP., SM, 1.0nF CER., 0805, X7R, 50V 1008-3A102K5R (OS-3H162)C26CAP., SM, 1.0nF CER., 0805, X7R, 50V 1008-3A102K5RC27CAP., SM, 4.7µF TANT., 10%, 16V 1055-5B475K16C28CAP., SM, 6.8µF TANT., 20%, 10V 1055-5B685M10C29CAP., SM, 47µF TANT., 20%, 16V 1055-6D476M16C30CAP., SM, 10nF CER, 0805, X7R, 50V 1008-4A103K5RC31CAP., SM, 1.0nF CER., 0805, X7R, 50V 1008-3A102K5RC32, C33CAP., SM, 100uF TANT., 20%,16V 1055-7D107M16C34CAP., SM, 10nF CER, 0805, X7R, 50V 1008-4A103K5RC35CAP., SM, 3.3pF CER., 0805,C0G 1008-0A339J1G (OS-3H141)C35CAP., SM, 8.2pF CER., 0805,C0G 1008-0A829J1G (OS-3H162)C36CAP., SM, 330pF CER., 0805, COG 1008-2A331J1GC37CAP., 1.0µF FILM, MMK5, 10%, 50V 1016-6D105K50 (OS-3H141)C37CAP., 1.0µF FILM, MMK5, 10%, 50V 1016-6D105K50 (OS-3H162)C38CAP., 1.0µF FILM, MMK5, 10%, 50V 1016-6D105K50 (OS-3H141)C38CAP., 470nF FILM, MMK5,10%,63V 1016-5D474K63 (OS-3H162)C39CAP., 1.0µF FILM, MMK5, 10%, 63V 1016-6D105K50 (OS-3H141)C39CAP., NOT INSTALLED NOT INSTALLED (OS-3H162)C40CAP., SM, 12pF CER., 0805, C0G 1008-1A120J1G (OS-3H141)C40CAP., SM, 6.8pF CER., 0805,C0G 1008-0A689J1G (OS-3H162)C42CAP., 22µF DIP. TANT., 20%, 20V 1054-6G226M20C43CAP., SM, 10nF CER, 0805, X7R, 50V 1008-4A103K5RC44CAP., SM, 330pF CER., 0805, COG 1008-2A331J1GC45CAP., 470nF FILM, MMK5,10%,63V 1016-5D474K63 (OS-3H141)C45CAP., 220nF FILM, MMK5,10%,50V 1016-5A224K50 (OS-3H162)C46,C47CAP., SM, 330pF CER., 0805, COG 1008-2A331J1GRef.
Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz 5-9Desig Description Part No.C49CAP., 33nF FILM, MMK5, 10%, 63V 1016-4A333K63 (OS-3H141)C49CAP., 22nF FILM, MMK5, 10%, 63V 1016-4A223K63 (OS-3H162)C50CAP., 22µF DIP. TANT., 20%, 20V 1054-6G226M20C51CAP., SM, 10nF CER, 0805, X7R, 50V 1008-4A103K5RC52CAP., SM, 330pF CER., 0805, COG 1008-2A331J1GC53CAP., SM, 27pF CER., 0805, COG 1008-1A270J1GC54CAP., 22µF DIP. TANT., 20%, 20V 1054-6G226M20C55CAP., SM, 10nF CER, 0805, X7R, 50V 1008-4A103K5RC56CAP., SM, 330pF CER., 0805, COG 1008-2A331J1GC58CAP., SM, 47pF CER., 0805, COG 1008-1A470J1GC59CAP., SM, 27pF CER., 0805, COG 1008-1A270J1GD1 DIODE, NOT INSTALLED NOT INSTALLEDD2 DIODE, MMBV609L VARICAP, SOT-23 2106-MMBV609LD3 DIODE, MMBD701L HOT CARR., SOT23 2105-MMBD7010D4 DIODE, BYD17J RECTIFIER,SOD87 2101-BYD17J00D5 DIODE, BAS16 SWITCHING, SOT23 2100-BAS16000L1-L3 CHOKE, RF/MOULD., 10uH 10%,.25 1251-4A00100KL4 CHOKE, RF/MOULD., 1.5uH 10%,.25 1251-3A001R5KL5BOBBIN, 5.5 TURNS, 1.59 mm pitch 5791-A1010300WIRE, COPPER, 20AWG, Ag PLATED, 11cm 7140-30002000(1pc 9cm, 2pcs1cm)L6-L10 CHOKE, RF/MOULD., 1.5uH 10%,.25 1251-3A001R5KL11,L12 INDUCTOR, SM, 47nH CER,10%,1008 1256-1B47N00KL12 INDUCTOR, SM, 47nH CER,10%,1008 1256-1B47N00KLED1 LED, SUB-MIN.,2mm SQ,AXIAL,ORG 2012-S229013CPCBPCB, ANALOG, OS-3H H/P SYNTH. 4309-26500252Q1,Q2TRANSISTOR, BC817-25,NPN,SOT23 2120-BC817025Q3TRANSISTOR, BC807 PNP, SOT23 2120-BC807025 Q4TRANSISTOR, BC817 NPN, SOT23 2120-BC817025Q5 JFET, J211 RF, N-CHAN., TO-92A 2041-J2110000R1RES., SM, 49R9 0805, 1%,100ppm 1150-1A49R9FPR2RES., 330R METAL FILM, 5%, 0.5W 1101-2A0331JPR3,R4RES., SM, 10K0 0805, 1%,100ppm 1150-4A1002FPR5RES., SM, 100R 0805, 1%,100ppm 1150-2A1000FPR6RES., SM, 1K00 0805, 1%,100ppm 1150-3A1001FPR7,R8RES., SM, 10K0 0805, 1%,100ppm 1150-4A1002FPR9RES., SM, 1K00 0805, 1%,100ppm 1150-3A1001FPR10-R12RES., SM, 10K0 0805, 1%,100ppm 1150-4A1002FPR13RES., SM, 11K8 0805, 1%,100ppm 1150-4A1182FPR14 RES., SM, 10K0 0805, 1%,100ppm 1150-4A1002FPR15RES., SM, 10R0 0805, 1%,100ppm 1150-1A10R0FPR16, R17RES., SM, 5K11 0805, 1%,100ppm 1150-3A5111FPR18, R19RES., SM, 10K0 0805, 1%,100ppm 1150-4A1002FPR20RES., SM, 10R0 0805, 1%,100ppm 1150-1A10R0FPR21RES., SM, 20K0 0805, 1%,100ppm 1150-4A2002FPR22RES., SM, ZERO OHM JUMPER,08051150-0A0R0000 (OSR-3H1xx)R22RES., SM, 100R 0805, 1%,100ppm 1150-2A1000FP(OST-3H1xx)
5-10Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHzRef.Desig Description Part No.R23-R25RES., SM, 10R0 0805, 1%,100ppm 1150-1A10R0FPR26RES., 1R2 METAL FILM, 5%, 0.5W 1101-0A01R2JIR27RES., SM, 11K8 0805, 1%,100ppm 1150-4A1182FPR28RES., NOT INSTALLED NOT INSTALLEDR29RES., SM, 3K92 0805, 1%,100ppm 1150-3A3921FPR30RES., SM, 10R0 0805, 1%,100ppm 1150-1A10R0FPR31RES., SM, 49R9 0805, 1%,100ppm 1150-1A49R9FPR32RES., 12K METAL FILM, 5%, 0.5W 1101-4A0123JP (OS-3H141)R32RES., 15K METAL FILM, 5%, 0.5W 1101-4A0153JP (OS-3H162)R33RES., 680R METAL FILM, 5%, 0.5W 1101-2A0681JPR34,R35RES., SM, 10K0 0805, 1%,100ppm 1150-4A1002FPR36RES., 2K2 METAL FILM, 5%, 0.5W 1101-3A0222JP (OS-3H141)R36RES., 6K2 METAL FILM, 5%, 0.5W 1101-3A0622JP (OS-3H162)R39RES., SM, 0 0805, ZERO OHM JUMPER 1150-0A0R0000R40RES., 180R METAL FILM, 5%, 0.5W 1101-2A0181JPR41RES., SM, 18R2 0805, 1%,100ppm 1150-1A18R2FPR44RES., SM, 47R5 0805, 1%,100ppm 1150-1A47R5FPR45RES., SM, 27R4 0805, 1%,100ppm 1150-1A27R4FPR46RES., SM, 33R2 0805, 1%,100ppm 1150-1A33R2FPR47, R48RES., SM, 47R5 0805, 1%,100ppm 1150-1A47R5FPR49 RES., SM, 10R0 0805, 1%,100ppm 1150-1A10R0FPR50RES., 180R METAL FILM, 5%, 0.5W 1101-2A0181JPR51RES., NOT INSTALLED NOT INSTALLEDR52RES., SM, 49R9 0805, 1%,100ppm 1150-1A49R9FPR53RES., SM, 10K0 0805, 1%,100ppm 1150-4A1002FPR54RES., SM, 18R2 0805, 1%,100ppm 1150-1A18R2FPR55RES., SM, 274 0805, 1%,100ppm 1150-2A2740FPR56RES., SM, 274 0805, 1%,100ppm 1150-2A2740FPRV1POT., SM, 5K0 1T, TOP ADJ 1174-AS2502J1TCXO1 VTCXO MODULE, 9.6 MHz 4 PIN, +- 1ppm 2641-09600BM5U1-U4 DIODE, I/R SENSOR,TTL O/P,PLST2014-1L18230TU5 LED, I/R,GaAs,.81 x .23,PLAST.2013-1G18230AU6I.C., LT1129-IS8 ,PROG. VOLT REG,SO8 2305-11290N08U7,U8I.C., LP2951 PROG. VOLT REG, SO-8 2305-29510N08U9MOSFET, SI9945DY, N CHAN.,SO-8 2142-SI9945DYU10 IC, 45193,PLL FREQ/SYNTH,SO-20 2355-45193N20U11 IC, MSA-0611, MM1C AMP,SOT-143 2354-MSA06110U15,U16 IC, MSA-0611, MM1C AMP,SOT-143 2354-MSA06110
Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz 5-115.4 OS(R/T)-3H 406 - 470 MHz Analog Board Electrical Parts ListRef.Desig Description Part No.C1 - C3 CAP., SM 1.0nF CER., 0805, X7R, 50V 1008-3A102K5RC4 CAP., SM 10nF CER, 0805, X7R, 50V 1008-4A103K5RC5 CAP., SM 100nF CER., 0805, X7R, 50V 1008-5A104K5RC6 CAP., SM 47uF TANT., 20%, 16V 1055-6D476M16C7 CAP., SM 10nF CER, 0805, X7R, 50V 1008-4A103K5RC8 CAP., SM 100nF CER., 0805, X7R, 50V 1008-5A104K5RC9 CAP., SM 10nF CER, 0805, X7R, 50V 1008-4A103K5RC10CAP., SM 100nF CER., 0805, X7R, 50V 1008-5A104K5RC11CAP., SM 1.0uF TANT., 10%, 16V 1055-5A105M16 C12, C13 CAP., SM 4.7uF TANT., 10%, 16V 1055-5B475K16C14 CAP., SM 10nF CER, 0805, X7R, 50V 1008-4A103K5RC15 CAP., SM 4.7uF TANT., 10%, 16V1055-5B475K16C16CAP., 100nF FILM, MMK5, 10%, 63V 1016-5A104K63C17 CAP., SM 1.0nF CER., 0805, X7R, 50V 1008-3A102K5RC18 CAP., SM 47uF TANT., 20%, 16V 1055-6D476M16C19 CAP., SM 10nF CER, 0805, X7R, 50V 1008-4A103K5RC20 CAP., SM 4.7uF TANT., 10%, 16V1055-5B475K16C21, C22 CAP., SM 10nF CER, 0805, X7R, 50V 1008-4A103K5RC25, C26 CAP., SM 1.0nF CER., 0805, X7R, 50V 1008-3A102K5RC27CAP., SM 4.7uF TANT., 10%, 16V1055-5B475K16C29CAP., SM 47uF TANT., 20%, 16V 1055-6D476M16C30 CAP., SM 10nF CER, 0805, X7R, 50V 1008-4A103K5RC31CAP., SM 1.0nF CER., 0805, X7R, 50V 1008-3A102K5RC32, C33CAP., SM, 100uF TANT., 20%,16V 1055-7D107M16C34 CAP., SM 10nF CER, 0805, X7R, 50V 1008-4A103K5RC35CAP., SM 100pF CER., 0805, COG 1008-2A101J1GC36 CAP., SM 330pF CER., 0805, COG 1008-2A331J1GC37 CAP., 1.0uF FILM, MMK5,10%,50V 1016-6D105K50C38 CAP., NOT INSTALLED NOT INSTALLED OST-3H4xxC38 CAP., 1.0uF FILM, MMK5,10%,50V 1016-6D105K50 OSR-3H440C39 CAP., NOT INSTALLED NOT INSTALLED OST-3H4xxC39 CAP., 1.0uF FILM, MMK5,10%,50V 1016-6D105K50 OSR-3H440C42 CAP., 22uF DIP. TANT., 20%, 20V 1054-6G226M20C43 CAP., SM 10nF CER, 0805, X7R, 50V 1008-4A103K5RC44 CAP., SM 330pF CER., 0805, COG 1008-2A331J1GC45CAP., 220nF FILM, MMK5,10%,50V 1016-5A224K50 OST-3H4xxC45CAP., 470nF FILM, MMK5,10%,50V 1016-5C474K50 OSR-3H440C46 CAP., SM 330pF CER., 0805, COG 1008-2A331J1GC47 CAP., SM 330pF CER., 0805, COG 1008-2A331J1GC49CAP., 22nF FILM, MMK5, 10%,63V 1016-4A223K63 OST-3H4xxC49CAP., 33nF FILM, MMK5, 10%,63V 1016-4A333K63 OSR-3H440C50 CAP., 22uF DIP. TANT., 20%, 20V 1054-6G226M20C51 CAP., SM 10nF CER, 0805, X7R, 50V 1008-4A103K5RC52 CAP., SM 330pF CER., 0805, COG 1008-2A331J1GC53 CAP., SM, 10pF CER., 0805, C0G 1008-1A100J1GC54CAP., 22uF DIP. TANT., 20%, 20V 1054-6G226M20C55CAP., SM 10nF CER, 0805, X7R, 50V 1008-4A103K5RC56CAP., SM 330pF CER., 0805, COG 1008-2A331J1GC58CAP., SM, 15pF CER., 0805, C0G 1008-1A150J1GRef.
5-12Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHzDesig Description Part No.C59CAP., SM, 10pF CER., 0805, C0G 1008-1A100J1GC60CAP., 100nF FILM, MMK5, 10%, 63V 1016-5A104K63 OST-3H4xxC60 CAP., NOT INSTALLED NOT INSTALLED OSR-3H440D4 DIODE, BYD17J RECTIFIER,SOD872101-BYD17J00D5 DIODE, BAS16 SWITCHING, SOT23 2100-BAS16000L1 - L3 CHOKE, RF/MOULD.10uH 10%,.25 1251-4A00100KL6 - L10CHOKE, RF/MOULD.1.5uH 10%,.25 1251-3A001R5KL11 L12 INDUCTOR, SM18nH CER,10%,10081256-1B18N00KLED1 LED, SUB-MIN.,2mm SQ,AXIAL,ORG 2012-S229013CPCBPCB, ANALOG, OS-3H UHF SYNTH. 4309-27500282Q1, Q2TRANSISTOR, BC817 NPN, SOT23 2120-BC817025Q3TRANSISTOR, BC807 PNP, SOT23 2120-BC807025 Q4TRANSISTOR, BC817 NPN, SOT23 2120-BC817025R1 RES., SM 49R9 0805, 1%,100ppm 1150-1A49R9FPR2RES.330R METAL FILM, 5%, 0.5W 1101-2A0331JPR3 R4 RES., SM 10K0 0805, 1%,100ppm 1150-4A1002FPR5RES., SM 100R 0805, 1%,100ppm 1150-2A1000FPR6 RES., SM 1K00 0805, 1%,100ppm 1150-3A1001FPR7 R8 RES., SM 10K0 0805, 1%,100ppm 1150-4A1002FPR9RES., SM 1K00 0805, 1%,100ppm 1150-3A1001FPR10 - R12 RES., SM 10K0 0805, 1%,100ppm 1150-4A1002FPR13RES., SM 11K8 0805, 1%,100ppm 1150-4A1182FPR14 RES., SM 10K0 0805, 1%,100ppm 1150-4A1002FPR15 RES., SM 10R0 0805, 1%,100ppm 1150-1A10R0FPR16, R17RES., SM, 5K11 0805, 1%,100ppm 1150-3A5111FPR18, R19 RES., SM 10K0 0805, 1%,100ppm 1150-4A1002FPR21RES., 2K7 METAL FILM, 5%, 0.5W 1101-3A0272JP OST-3H4xxR21RES., NOT INSTALLED NOT INSTALLED OSR-3H440R23 RES., SM 10R0 0805, 1%,100ppm 1150-1A10R0FPR24, R25 RES., SM 10R0 0805, 1%,100ppm 1150-1A10R0FPR26RES.1R2 METAL FILM, 5%, 0.5W 1101-0A01R2JIR28 NOT INSTALLED NOT INSTALLED OST-3H418R28 RES., SM 10R0 0805, 1%,100ppm 1150-1A10R0FP OSR-3H440R28 RES., SM 10R0 0805, 1%,100ppm 1150-1A10R0FP OST-3H460R29RES., SM 3K92 0805, 1%,100ppm 1150-3A3921FP OST-3H418R29RES., SM 36K5 0805, 1%,100ppm 1150-4A3652FP OSR-3H440R29RES., SM 36K5 0805, 1%,100ppm 1150-4A3652FP OST-3H460R30RES., SM 10R0 0805, 1%,100ppm 1150-1A10R0FPR31 RES., SM 274R 0805, 1%,100ppm 1150-2A2740FPR32RES., 4K7 METAL FILM, 5%, 0.5W 1101-3A0472JP OSR-3H440R32RES., 5K6 METAL FILM, 5%, 0.5W 1101-3A0562JP OST-3H4xxR33RES.680R METAL FILM, 5%, 0.5W 1101-2A0681JPR34, R35 RES., SM 10K0 0805, 1%,100ppm 1150-4A1002FPR36RES., 2K2 METAL FILM, 5%, 0.5W 1101-3A0222JP OST-3H4xxR36RES., 1K5 METAL FILM, 5%, 0.5W 1101-3A0152JP OSR-3H440R39RES., SM 0R0 0805, ZERO OHM JUMPER 1150-0A0R0000Ref.
Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz 5-13Desig Description Part No.R40 RES.180R METAL FILM, 5%, 0.5W 1101-2A0181JPR41 RES., SM 18R2 0805, 1%,100ppm 1150-1A18R2FPR44 RES., SM 47R5 0805, 1%,100ppm 1150-1A47R5FPR45 RES., SM 27R4 0805, 1%,100ppm 1150-1A27R4FPR46 RES., SM 33R2 0805, 1%,100ppm 1150-1A33R2FPR47RES., SM 47R5 0805, 1%,100ppm 1150-1A47R5FPR48RES., SM 47R5 0805, 1%,100ppm 1150-1A47R5FP OST-3H418R48RES., SM 27R4 0805, 1%,100ppm 1150-1A27R4FP OSR-3H440R48RES., SM 27R4 0805, 1%,100ppm 1150-1A27R4FP OST-3H460R49 RES., SM 10R0 0805, 1%,100ppm 1150-1A10R0FP OST-3H418R49 RES., SM 33R2 0805, 1%,100ppm 1150-1A33R2FP OSR-3H440R49RES., SM 33R2 0805, 1%,100ppm 1150-1A33R2FP OST-3H460R50RES.180R METAL FILM, 5%, 0.5W 1101-2A0181JPR51RES.220R METAL FILM, 5%, 0.5W 1101-2A0221JPR52 NOT INSTALLED NOT INSTALLED OST-3H418R52 RES., SM 49R9 0805, 1%,100ppm 1150-1A49R9FP OSR-3H440R52RES., SM 49R9 0805, 1%,100ppm 1150-1A49R9FP OST-3H460R53RES., SM 10K0 0805, 1%,100ppm 1150-4A1002FPR54 RES., SM 18R2 0805, 1%,100ppm 1150-1A18R2FPR55, R56 RES., SM 274R 0805, 1%,100ppm 1150-2A2740FPR57RES., SM 18R2 0805, 1%,100ppm 1150-1A18R2FPR58RES., SM 274R 0805, 1%,100ppm 1150-2A2740FPRV1POT., SM5K0 1T, TOP ADJ 1174-AS2502J1TCXO1 VTCXO MODULE 9.6 MHz 4 PIN, +- 1ppm 2641-09600BM5U1 - U4 DIODE, OPL550 I/R SENSOR,TTL O/P,PLST 2014-1L18230TU5 LED, OP140A I/R,GaAs,.81 x .23,PLAST.2013-1G18230AU6I.C., LT1129-IS8,PROG. VOLT REG, SO8 2305-11290N08U7, U8I.C.LP2951 PROG. VOLT REG, SO-8 2305-29510N08U9MOSFET, SI9945DY, N CHAN.,SO-8 2142-SI9945DYU10I.C., MC145193, PLL FREQ/SYNTH, SO-20 2355-45193N20 OST-3H418U10I.C., MC145190, PLL FREQ/SYNTH, SO-20 2355-45190N20 OSR-3H440U10I.C., MC145190, PLL FREQ/SYNTH, SO-20 2355-45190N20 OST-3H460U11I.C., MSA-0611, MM1C AMP, SOT-143 2354-MSA06110U15, U16I.C., MSA-0611, MM1C AMP, SOT-143 2354-MSA06110U17 VCO MODULE,427.4-451.4MHz,T-PK 2621-L002309T OSR-3H440U17 VCO MODULE, 406-470 MHz,T-PKG.2621-190435MT OST-3H4xx
5-14Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz5.5 OS(R/T)-3(A/H) Digital Board Electrical Parts ListRef.Desig Description Part No.C1,C2CAP., SM, 100nF CER., 0805, X7R, 50V 1008-5A104K5RC3-C5CAP., SM, 47µF TANT., 20%, 16V 1055-6D476M16C6,C7CAP., SM, 22pF CER., 0805, COG 1008-1A220J1GC8CAP., SM, 4.7µF TANT., 10%, 16V 1055-5B475K16C9-C14CAP., SM, 100nF CER., 0805, X7R, 50V 1008-5A104K5RC15CAP., SM, 10µF TANT., 20%, 16V 1055-6C106M16P1 INTERCONNECT/STD,1ROW x 12P,Au 5015-IS112G21 INTERCONNECT/STD,1ROW x9PIN,Au 5015-IS109G21P2 INTERCONNECT/STD,1ROW x6PIN,Au 5015-IS106G21 D1 - D4DIODE, BAS16 SWITCHING, SOT23 2100-BAS16000L1 INDUCTOR, SM, 10.0uH, 10%,1812 1255-4G10000KPCBPCB, DIGITAL, OS-3H H/P SYNTH. 4309-26500213Q1 - Q11TRANSISTOR, BC817-25,NPN,SOT23 2120-BC817025R1RES., SM, 0 0805, ZERO OHM JUMPER 1150-0A0R0000R2-R7RES., SM, 47K5 0805, 1%,100ppm 1150-4A4752FPR8RES., SM, 6K81 0805, 1%,100ppm 1150-3A6811FP R9,R10RES., SM, 47K5 0805, 1%,100ppm 1150-4A4752FPR11RES., SM, 10M0 1206, 5%,400ppm1151-7B0106JGR12-R22RES., SM, 47K5 0805, 1%,100ppm 1150-4A4752FPR23-R26RES., SM, 10K0 0805, 1%,100ppm 1150-4A1002FPR27-R29RES., SM, 47K5 0805, 1%,100ppm 1150-4A4752FPR30-R32RES., SM, 215R 0805, 1%,100ppm 1150-2A2150FPR33RES., SM, 332R 0805, 1%,100ppm 1150-2A3320FPR34-R40RES., SM, 47K5 0805, 1%,100ppm 1150-4A4752FPR41RES., SM, 221K 0805, 1%, 100ppm 1150-5A2213FPU1MOSFET, SI9933DY, P CHAN.,SO-8 2142-SI9933DYU2 IC, LP2951,PROG. VOLT REG,SO-8 2305-29510N08U3 IC, MC33064,UNDR/VOLT SEN.SO-8 2308-33064N08U4 IC, 68HC811E2, MIC/CTR, PLCC52 2380-68811P52U5-U8 LED, I/R,GaAs,.81 x .23,PLAST. 2013-1G18230AU9 DIODE, I/R SENSOR,TTL O/P,PLST2014-1L18230TX1 RESONATOR, SM, 8.0MHz, CERAMIC 1575-8001816A
Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz 5-155.6 OS(R/T)-3(A/H) Synthesizer Mechanical Parts ListDescription Part No. Qty.CASE, OS-3H SYNTH. MODULE,ALUM 3702-66100920 1CONN., SMB, JACK,2 HOLE FLANGE 5120-J2SC01BG 2FERRITE, BEAD,73 MIX, 3X3.5mm OD (CON3-CON5)1210-73030350 3 OS-3H050FERRITE, BEAD,43 MIX, 3X3.5mm OD (CON3-CON5)1210-43030350 3 OS-3A130FERRITE, BEAD,43 MIX, 3X3.5mm OD (CON3-CON5)1210-43030350 3 OS-3H150FERRITE, BEAD,61 MIX, 3X3.5mm OD (CON3-CON5)1210-61030350 3 OS-3H440HEADER, .1”, 1 ROWX3PIN, AU 5010-H103ST7L 2LABEL, FOIL,FRQ/SN,OS-3H SYNTH 3501-13091006 1LID, CASE,OS-3H SYNTH/MODL.,AL 3702-66100921 1PIN, 2 x 10mm, GROOVED W/PILOT 5876-D1470210 4SCREW, M2.0 x 4, FLAT/PHIL, A25812-2M0FP04S8SCREW, M2 X 4, PAN/PHILLIPS,A25812-2M0PP04S15SCREW, M2.5 x 24.5 FLAT/PHIL, A25812-2M5FP24S1WASHER, TFE,0.036ID,1/8OD,.02T5805-T3612F20 6
5-16Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHzThis Page Intentionally Left Blank
Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz 7-16. REVISION HISTORYISSUE DATE REVISION 1 May 97 • Issue 12 Mar 98 • Changes to the AM Analog board (OST-3A128) to improve performanceECO #547.C37 was 220nF is now 100nF and C40 was 8.2pF is now not installedC45 was 33nF is now 22nF and C49 was 2.2nF is now 1.5nFR32 was 33kΩ is now 56kΩand R36 was 3k3Ω is now 5k6Ω3 Mar 00 • Changes to the AM Analog board to improve performance at -40˚C.ECO #565.L4 was 1.5µH is now 3.9 µH• Changes to the FM Analog boards to improve manufacturing. ECO #572C32 & C33 were 100µF through hole tantalums are now 100µF surface mounttantalums• Changes to the OS-3A/H Digital board for compatibility with the new AMwideband Synthesizers. ECO #579.Added C15 (10µF) and R41 (221kΩ).JU1 was added and is installed for AM modules only.PCB, DIGITAL, OS-3H/P SYNTH was version 2 now version 3.• Added the new component layouts, schematic diagram and parts lists for the newAM wideband synthesizer. Wideband referring to only having to be tuneonce and working over the whole AM band (118-138 MHz).4 May 00 • Changes to the OS-3H 128-174 MHz Analog board. ECO #603.R29 was 18k2 is now 3k92, U10 was MC145191 is now MC145193.• Changes to the OSR-3H 128-174 MHz Analog board. ECO #609.R22 was 100R is now 0R0.• Changes to the OS-3A 118-159.4 Analog board. ECO #601.R42 & r53 were 137kΩ are now 100kΩ.Jul 00 •Corrected the SELECT table on the OS(R/T)-3H 128-174 MHz Schematicdiagram (section 4.3.3).
7-2Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHzISSUE DATE REVISION 4 Aug 00 • Changes to the OS(R/T)-3(A/H) Digital board. ECO #599.R30, R31 & R32 were 332R are now 215R.• Changes to the OS-3H 406-470 MHz Analog board. ECO # 597.R48 was 27R4 is now 47R5, R49 was 33R2 is now 10R.R52 was 49R9 is now Not Installed.
DANIELSELECTRONICS LTD. ®MT-3 RADIO SYSTEMSVHF TRANSMITTERCHANNEL DESIGNATIONTABLESVT-3 132-174 MHzCovers model:VT-3/140-SWA2, VT-3/160-SWA2VT-3/140-SWA8, VT-3/160-SWA8VT-3/140-SNA2, VT-3/160-SNA2VT-3/140-SNA8, VT-3/160-SNA8Copyright © 1998 Daniels Electronics Ltd. All rights reserved. No part of this publication may bereproduced, stored in a retrieval system or transmitted in any form or by any means, electronic,mechanical, photocopying, recording or otherwise, without the prior written consent of DanielsElectronics Ltd.Issue: 1 Previous Issue: N/AIssue Date: May 1998 Previous Issue Date: N/A Daniels Electronics Ltd.Printing Date: January 2001Victoria, BC.Part No.: IM21-VT3150CT PRINTED IN CANADA
iiVHF Transmitter Channel Designation Tables VT-3 132 - 174 MHzNOTE:The user's authority to operate this equipment could be revoked through anychanges or modifications not expressly approved by Daniels Electronics Ltd.The design of this equipment is subject to change due to continuous development.This equipment may incorporate minor changes in detail from the informationcontained in this manual.
VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHziiiTABLE OF CONTENTSPage1.VT-3/140 Channel Designation Table: 132-150MHz, 5kHz Increments..........................1-12VT-3/140 Channel Designation Table: 132-150MHz, 6.25kHz Increments.....................2-13VT-3/160 Channel Designation Table: 150-174MHz, 5kHz Increments..........................3-14VT-3/160 Channel Designation Table: 150-174MHz, 6.25kHz Increments.....................4-15 REVISION HISTORY.....................................................................................................5-1
ivVHF Transmitter Channel Designation Tables VT-3 132 - 174 MHzThis Page Intentionally Left Blank
VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHz1-11. VT-3/140 Channel Designation Table: 132-150MHz, 5kHz IncrementsChan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)800 132.00000 875 132.37500 950 132.75000 1025 133.12500 1100 133.50000 1175 133.87500 1250 134.25000801 .00500 876 .38000 951 .75500 1026 .13000 1101 .50500 1176 .88000 1251 .25500802 .01000 877 .38500 952 .76000 1027 .13500 1102 .51000 1177 .88500 1252 .26000803 .01500 878 .39000 953 .765001028 .14000 1103 .51500 1178 .89000 1253 .26500804 .02000 879 .39500 954 .77000 1029 .14500 1104 .52000 1179 .89500 1254 .27000805 .02500 880 .40000 955 .77500 1030 .15000 1105 .52500 1180 .90000 1255 .27500806 .03000 881 .40500 956 .78000 1031 .155001106.53000 1181 .90500 1256 .28000807 .03500 882 .41000 957 .78500 1032 .16000 1107 .53500 1182 .91000 1257 .28500808 .04000 883 .41500 958 .79000 1033 .16500 1108 .54000 1183 .91500 1258 .29000809 .04500 884 .42000 959 .79500 1034 .17000 1109 .54500 1184.92000 1259 .29500810 .05000 885 .42500 960 .80000 1035 .17500 1110 .55000 1185 .92500 1260 .30000811 .05500 886 .43000 961 .80500 1036 .18000 1111 .55500 1186 .93000 1261 .30500812 .06000 887 .43500 962 .81000 1037 .18500 1112 .56000 1187 .93500 1262 .31000813 .06500 888 .44000 963 .81500 1038 .19000 1113 .56500 1188 .94000 1263 .31500814 .07000 889 .44500 964 .82000 1039 .19500 1114 .57000 1189 .94500 1264 .32000815 .07500 890 .45000 965 .82500 1040 .20000 1115 .57500 1190 .95000 1265 .32500816.08000 891 .45500 966 .83000 1041 .20500 1116 .58000 1191 .95500 1266 .33000817 .08500 892 .46000 967 .83500 1042 .21000 1117 .58500 1192 .96000 1267 .33500818 .09000 893 .46500 968 .84000 1043 .21500 1118 .59000 1193 .96500 1268 .34000819 .09500 894 .47000 969 .84500 1044 .22000 1119 .59500 1194 .97000 1269 .34500820 .10000 895 .47500 970 .85000 1045 .22500 1120 .60000 1195 .97500 1270 .35000821 .10500 896 .48000 971 .85500 1046 .23000 1121 .60500 1196 .98000 1271 .35500822 .11000 897 .48500 972 .860001047 .23500 1122 .61000 1197 .98500 1272 .36000823 .11500 898 .49000 973 .86500 1048 .24000 1123 .61500 1198 .99000 1273 .36500824 .12000 899 .49500 974 .87000 1049 .24500 1124 .62000 1199 .99500 1274 .37000825 .12500 900 132.50000 975 .87500 1050 133.25000 1125 .62500 1200 134.00000 1275 .37500826 .13000 901 .50500 976 .88000 1051 .25500 1126 .63000 1201 .00500 1276 .38000827 .13500 902 .51000 977 .88500 1052 .26000 1127 .63500 1202 .01000 1277 .38500828 .14000 903 .51500 978 .89000 1053 .26500 1128.64000 1203 .01500 1278 .39000829 .14500 904 .52000 979 .89500 1054 .27000 1129 .64500 1204 .02000 1279 .39500830 .15000 905 .52500 980 .90000 1055 .27500 1130 .65000 1205 .02500 1280 .40000831 .15500 906 .53000 981 .90500 1056 .28000 1131 .65500 1206 .03000 1281 .40500832 .16000 907 .53500 982 .91000 1057 .28500 1132 .66000 1207 .03500 1282 .41000833 .16500 908 .54000 983 .91500 1058 .29000 1133 .66500 1208 .04000 1283 .41500834 .17000 909 .54500 984 .92000 1059 .29500 1134 .67000 1209 .04500 1284 .42000835 .17500 910 .55000 985 .92500 1060 .30000 1135 .67500 1210 .05000 1285 .42500836 .18000 911 .55500 986 .93000 1061 .30500 1136 .68000 1211 .05500 1286 .43000837 .18500 912 .56000 987 .93500 1062 .31000 1137 .68500 1212 .06000 1287 .43500838.19000 913 .56500 988 .94000 1063 .31500 1138 .69000 1213 .06500 1288 .44000839 .19500 914 .57000 989 .94500 1064 .32000 1139 .69500 1214 .07000 1289 .44500840 .20000 915 .57500 990 .95000 1065 .32500 1140 .70000 1215 .07500 1290 .45000841 .20500 916 .58000991 .95500 1066 .33000 1141 .70500 1216 .08000 1291 .45500842 .21000 917 .58500 992 .96000 1067 .33500 1142 .71000 1217 .08500 1292 .46000843 .21500 918 .59000 993 .96500 1068 .34000 1143 .71500 1218 .09000 1293 .46500844 .22000 919 .59500 994 .97000 1069 .34500 1144 .72000 1219 .09500 1294 .47000845 .22500 920 .60000 995 .97500 1070 .35000 1145 .72500 1220 .10000 1295 .47500846 .23000 921 .60500 996 .98000 1071 .35500 1146 .73000 1221 .10500 1296 .48000847 .23500 922 .61000 997 .98500 1072 .36000 1147 .73500 1222 .11000 1297 .48500848 .24000 923 .61500 998 .99000 1073 .36500 1148 .74000 1223 .11500 1298 .49000849 .24500 924 .62000 999 .99500 1074 .37000 1149 .74500 1224 .12000 1299 .49500850 132.25000 925 .62500 1000 133.00000 1075 .37500 1150133.75000 1225 .12500 1300 134.50000851 .25500 926 .63000 1001 .00500 1076 .38000 1151 .75500 1226 .13000 1301 .50500852 .26000 927 .63500 1002 .01000 1077 .38500 1152 .76000 1227 .13500 1302 .51000853 .26500 928 .64000 1003 .01500 1078 .39000 1153 .765001228 .14000 1303 .51500854 .27000 929 .64500 1004 .02000 1079 .39500 1154 .77000 1229 .14500 1304 .52000855 .27500 930 .65000 1005 .02500 1080 .40000 1155 .77500 1230 .15000 1305 .52500856 .28000 931 .65500 1006 .03000 1081 .40500 1156 .78000 1231 .15500 1306 .53000857 .28500 932 .66000 1007 .03500 1082 .41000 1157 .78500 1232 .16000 1307 .53500858 .29000 933 .66500 1008 .04000 1083 .41500 1158 .79000 1233 .16500 1308 .54000859 .29500 934 .67000 1009 .04500 1084 .42000 1159 .79500 1234 .17000 1309.54500860 .30000 935 .67500 1010 .05000 1085 .42500 1160 .80000 1235 .17500 1310 .55000861 .30500 936 .68000 1011 .05500 1086 .43000 1161 .80500 1236 .18000 1311 .55500862 .31000 937 .68500 1012 .06000 1087 .43500 1162 .81000 1237 .18500 1312 .56000863 .31500 938 .69000 1013 .06500 1088 .44000 1163 .81500 1238 .19000 1313 .56500864 .32000 939 .69500 1014 .07000 1089 .44500 1164 .82000 1239 .19500 1314 .57000865 .32500 940 .70000 1015 .07500 1090 .45000 1165 .82500 1240 .20000 1315 .57500866 .33000 941 .70500 1016 .08000 1091 .45500 1166 .83000 1241 .20500 1316 .58000867 .33500 942 .71000 1017 .08500 1092 .46000 1167 .83500 1242 .21000 1317 .58500868 .34000 943 .71500 1018 .09000 1093 .46500 1168 .84000 1243 .21500 1318 .59000869 .34500 944 .720001019.09500 1094 .47000 1169 .84500 1244 .22000 1319 .59500870 .35000 945 .72500 1020 .10000 1095 .47500 1170 .85000 1245 .22500 1320 .60000871 .35500 946 .73000 1021 .10500 1096 .48000 1171 .85500 1246 .23000 1321 .60500872 .36000 947 .73500 1022 .11000 1097 .48500 1172 .86000 1247 .23500 1322 .61000873 .36500 948 .74000 1023 .11500 1098 .49000 1173 .86500 1248 .24000 1323 .61500874 .37000 949 .74500 1024 .12000 1099 .49500 1174 .87000 1249 .24500 1324 .62000
1-2VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHzVT-3/140 Channel Designation Table: 132 to 150 MHz, 5 kHz Increments (continued)Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)1325 134.62500 1400 135.00000 1475 135.37500 1550135.75000 1625 136.12500 1700 136.50000 1775 136.875001326 .63000 1401 .00500 1476 .38000 1551 .75500 1626 .13000 1701 .50500 1776 .880001327 .63500 1402 .01000 1477 .38500 1552 .76000 1627 .13500 1702 .51000 1777 .885001328 .64000 1403 .01500 1478 .39000 1553 .76500 1628 .14000 1703 .51500 1778 .890001329 .64500 1404 .02000 1479 .39500 1554 .77000 1629 .14500 1704 .52000 1779 .895001330 .65000 1405 .02500 1480 .40000 1555 .77500 1630 .15000 1705 .52500 1780 .900001331 .65500 1406 .03000 1481 .40500 1556.78000 1631 .15500 1706 .53000 1781 .905001332 .66000 1407 .03500 1482 .41000 1557 .78500 1632 .16000 1707 .53500 1782 .910001333 .66500 1408 .04000 1483 .41500 1558 .79000 1633 .16500 1708 .54000 1783 .915001334 .67000 1409 .04500 1484 .42000 1559.79500 1634 .17000 1709 .54500 1784 .920001335 .67500 1410 .05000 1485 .42500 1560 .80000 1635 .17500 1710 .55000 1785 .925001336 .68000 1411 .05500 1486 .43000 1561 .80500 1636 .18000 1711 .55500 1786 .930001337 .68500 1412 .06000 1487 .43500 1562 .81000 1637 .18500 1712 .56000 1787 .935001338 .69000 1413 .06500 1488 .44000 1563 .81500 1638 .19000 1713 .56500 1788 .940001339 .69500 1414 .07000 1489 .44500 1564 .82000 1639 .19500 1714 .57000 1789 .945001340 .70000 1415 .07500 1490 .45000 1565 .82500 1640.20000 1715 .57500 1790 .950001341 .70500 1416 .08000 1491 .45500 1566 .83000 1641 .20500 1716 .58000 1791 .955001342 .71000 1417 .08500 1492 .46000 1567 .83500 1642 .21000 1717 .58500 1792 .960001343 .71500 1418 .09000 1493 .46500 1568 .84000 1643.21500 1718 .59000 1793 .965001344 .72000 1419 .09500 1494 .47000 1569 .84500 1644 .22000 1719 .59500 1794 .970001345 .72500 1420 .10000 1495 .47500 1570 .85000 1645 .22500 1720 .60000 1795 .975001346 .73000 1421 .10500 1496 .48000 1571 .85500 1646 .23000 1721 .60500 1796 .980001347 .73500 1422 .11000 1497 .48500 1572 .86000 1647 .23500 1722 .61000 1797 .985001348 .74000 1423 .11500 1498 .49000 1573 .86500 1648 .24000 1723 .61500 1798 .990001349 .74500 1424 .12000 1499 .49500 1574 .87000 1649 .24500 1724.62000 1799 .995001350 134.75000 1425 .12500 1500 135.50000 1575 .87500 1650 136.25000 1725 .62500 1800 137.000001351 .75500 1426 .13000 1501 .50500 1576 .88000 1651 .25500 1726 .63000 1801 .005001352 .76000 1427 .13500 1502 .51000 1577 .88500 1652.26000 1727 .63500 1802 .010001353 .76500 1428 .14000 1503 .51500 1578 .89000 1653 .26500 1728 .64000 1803 .015001354 .77000 1429 .14500 1504 .52000 1579 .89500 1654 .27000 1729 .64500 1804 .020001355 .77500 1430 .15000 1505 .52500 1580 .90000 1655 .27500 1730 .65000 1805 .025001356 .78000 1431 .15500 1506 .53000 1581 .90500 1656 .28000 1731 .65500 1806 .030001357 .78500 1432 .16000 1507 .53500 1582 .91000 1657 .28500 1732 .66000 1807 .035001358 .79000 1433 .16500 1508 .54000 1583 .91500 1658 .29000 1733.66500 1808 .040001359 .79500 1434 .17000 1509 .54500 1584 .92000 1659 .29500 1734 .67000 1809 .045001360 .80000 1435 .17500 1510 .55000 1585 .92500 1660 .30000 1735 .67500 1810 .050001361 .80500 1436 .18000 1511 .55500 1586 .93000 1661 .30500 1736.68000 1811 .055001362 .81000 1437 .18500 1512 .56000 1587 .93500 1662 .31000 1737 .68500 1812 .060001363 .81500 1438 .19000 1513 .56500 1588 .94000 1663 .31500 1738 .69000 1813 .065001364 .82000 1439 .19500 1514 .57000 1589 .94500 1664 .32000 1739 .69500 1814 .070001365 .82500 1440 .20000 1515 .57500 1590 .95000 1665 .32500 1740 .70000 1815 .075001366 .83000 1441 .20500 1516 .58000 1591 .95500 1666 .33000 1741 .70500 1816 .080001367 .83500 1442 .21000 1517 .58500 1592 .96000 1667 .33500 1742 .71000 1817.085001368 .84000 1443 .21500 1518 .59000 1593 .96500 1668 .34000 1743 .71500 1818 .090001369 .84500 1444 .22000 1519 .59500 1594 .97000 1669 .34500 1744 .72000 1819 .095001370 .85000 1445 .22500 1520 .60000 1595 .97500 1670 .35000 1745 .72500 1820.100001371 .85500 1446 .23000 1521 .60500 1596 .98000 1671 .35500 1746 .73000 1821 .105001372 .86000 1447 .23500 1522 .61000 1597 .98500 1672 .36000 1747 .73500 1822 .110001373 .86500 1448 .24000 1523 .61500 1598 .99000 1673 .36500 1748 .74000 1823 .115001374 .87000 1449 .24500 1524 .62000 1599 .99500 1674 .37000 1749 .74500 1824 .120001375 .87500 1450 135.25000 1525 .62500 1600 136.00000 1675 .37500 1750 136.75000 1825 .125001376 .88000 1451 .25500 1526 .63000 1601 .00500 1676 .38000 1751 .75500 1826.130001377 .88500 1452 .26000 1527 .63500 1602 .01000 1677 .38500 1752 .76000 1827 .135001378 .89000 1453 .26500 1528 .64000 1603 .01500 1678 .39000 1753 .76500 1828 .140001379 .89500 1454 .27000 1529 .64500 1604 .02000 1679 .39500 1754 .77000 1829 .145001380 .90000 1455 .27500 1530 .65000 1605 .02500 1680 .40000 1755 .77500 1830 .150001381 .90500 1456 .28000 1531 .65500 1606 .03000 1681 .40500 1756 .78000 1831 .155001382 .91000 1457 .28500 1532 .66000 1607 .03500 1682 .41000 1757 .78500 1832 .160001383 .91500 1458 .29000 1533 .66500 1608 .04000 1683 .41500 1758 .79000 1833 .165001384 .92000 1459 .29500 1534 .67000 1609 .04500 1684 .42000 1759 .79500 1834 .170001385 .92500 1460 .30000 1535 .67500 1610 .05000 1685 .42500 1760 .80000 1835 .175001386.93000 1461 .30500 1536 .68000 1611 .05500 1686 .43000 1761 .80500 1836 .180001387 .93500 1462 .31000 1537 .68500 1612 .06000 1687 .43500 1762 .81000 1837 .185001388 .94000 1463 .31500 1538 .69000 1613 .06500 1688 .44000 1763 .81500 1838 .190001389 .945001464 .32000 1539 .69500 1614 .07000 1689 .44500 1764 .82000 1839 .195001390 .95000 1465 .32500 1540 .70000 1615 .07500 1690 .45000 1765 .82500 1840 .200001391 .95500 1466 .33000 1541 .70500 1616 .08000 1691 .45500 1766 .83000 1841 .205001392 .960001467.33500 1542 .71000 1617 .08500 1692 .46000 1767 .83500 1842 .210001393 .96500 1468 .34000 1543 .71500 1618 .09000 1693 .46500 1768 .84000 1843 .215001394 .97000 1469 .34500 1544 .72000 1619 .09500 1694 .47000 1769 .84500 1844 .220001395 .97500 1470.35000 1545 .72500 1620 .10000 1695 .47500 1770 .85000 1845 .225001396 .98000 1471 .35500 1546 .73000 1621 .10500 1696 .48000 1771 .85500 1846 .230001397 .98500 1472 .36000 1547 .73500 1622 .11000 1697 .48500 1772 .86000 1847 .235001398 .99000 1473 .365001548 .74000 1623 .11500 1698 .49000 1773 .86500 1848 .240001399 .99500 1474 .37000 1549 .74500 1624 .12000 1699 .49500 1774 .87000 1849 .24500
VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHz1-3VT-3/140 Channel Designation Table: 132 to 150 MHz, 5 kHz Increments (continued)Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)1850 137.25000 1925 137.62500 2000 138.00000 2075 138.37500 2150 138.75000 2225 139.12500 2300 139.500001851 .255001926 .63000 2001 .00500 2076 .38000 2151 .75500 2226 .13000 2301 .505001852 .26000 1927 .63500 2002 .01000 2077 .38500 2152 .76000 2227 .13500 2302 .510001853 .26500 1928 .64000 2003 .01500 2078 .39000 2153 .76500 2228 .14000 2303 .515001854 .27000 1929 .64500 2004 .02000 2079 .39500 2154 .77000 2229 .14500 2304 .520001855 .27500 1930 .65000 2005 .02500 2080 .40000 2155 .77500 2230 .15000 2305 .525001856 .28000 1931 .65500 2006 .03000 2081 .40500 2156 .78000 2231 .15500 2306 .530001857 .28500 1932 .660002007 .03500 2082 .41000 2157 .78500 2232 .16000 2307 .535001858 .29000 1933 .66500 2008 .04000 2083 .41500 2158 .79000 2233 .16500 2308 .540001859 .29500 1934 .67000 2009 .04500 2084 .42000 2159 .79500 2234 .17000 2309 .545001860 .30000 1935 .675002010 .05000 2085 .42500 2160 .80000 2235 .17500 2310 .550001861 .30500 1936 .68000 2011 .05500 2086 .43000 2161 .80500 2236 .18000 2311 .555001862 .31000 1937 .68500 2012 .06000 2087 .43500 2162 .81000 2237 .18500 2312 .560001863 .31500 1938 .69000 2013 .06500 2088 .44000 2163 .81500 2238 .19000 2313 .565001864 .32000 1939 .69500 2014 .07000 2089 .44500 2164 .82000 2239 .19500 2314 .570001865 .32500 1940 .70000 2015 .07500 2090 .45000 2165 .82500 2240 .20000 2315 .575001866 .33000 1941 .70500 2016 .080002091 .45500 2166 .83000 2241 .20500 2316 .580001867 .33500 1942 .71000 2017 .08500 2092 .46000 2167 .83500 2242 .21000 2317 .585001868 .34000 1943 .71500 2018 .09000 2093 .46500 2168 .84000 2243 .21500 2318 .590001869 .34500 1944 .72000 2019 .095002094 .47000 2169 .84500 2244 .22000 2319 .595001870 .35000 1945 .72500 2020 .10000 2095 .47500 2170 .85000 2245 .22500 2320 .600001871 .35500 1946 .73000 2021 .10500 2096 .48000 2171 .85500 2246 .23000 2321 .605001872 .36000 1947 .73500 2022 .11000 2097 .48500 2172 .86000 2247 .23500 2322 .610001873 .36500 1948 .74000 2023 .11500 2098 .49000 2173 .86500 2248 .24000 2323 .615001874 .37000 1949 .74500 2024 .12000 2099 .49500 2174 .87000 2249 .24500 2324 .620001875 .37500 1950 137.75000 2025 .12500 2100138.50000 2175 .87500 2250 139.25000 2325 .625001876 .38000 1951 .75500 2026 .13000 2101 .50500 2176 .88000 2251 .25500 2326 .630001877 .38500 1952 .76000 2027 .13500 2102 .51000 2177 .88500 2252 .26000 2327 .635001878 .39000 1953 .76500 2028 .14000 2103 .51500 2178 .89000 2253 .26500 2328 .640001879 .39500 1954 .77000 2029 .14500 2104 .52000 2179 .89500 2254 .27000 2329 .645001880 .40000 1955 .77500 2030 .15000 2105 .52500 2180 .90000 2255 .27500 2330 .650001881 .40500 1956 .78000 2031 .15500 2106 .53000 2181 .90500 2256 .28000 2331 .655001882 .41000 1957 .78500 2032 .16000 2107 .53500 2182 .91000 2257 .28500 2332 .660001883 .41500 1958 .79000 2033 .16500 2108 .54000 2183 .91500 2258 .29000 2333 .665001884 .42000 1959 .79500 2034 .17000 2109 .54500 2184 .92000 2259 .29500 2334 .670001885 .42500 1960 .80000 2035 .17500 2110 .55000 2185 .92500 2260 .30000 2335 .675001886 .43000 1961 .80500 2036 .18000 2111 .55500 2186 .93000 2261 .30500 2336 .680001887 .43500 1962 .81000 2037 .18500 2112 .56000 2187 .93500 2262 .31000 2337 .685001888 .44000 1963 .81500 2038 .19000 2113 .56500 2188 .94000 2263 .31500 2338 .690001889 .44500 1964 .82000 2039 .19500 2114 .57000 2189 .94500 2264 .32000 2339 .695001890 .45000 1965 .82500 2040 .20000 2115 .57500 2190 .95000 2265 .32500 2340 .700001891 .45500 1966 .83000 2041 .20500 2116 .58000 2191 .95500 2266 .33000 2341 .705001892 .46000 1967 .83500 2042 .21000 2117 .58500 2192 .96000 2267 .33500 2342 .710001893 .46500 1968 .84000 2043 .21500 2118 .59000 2193 .96500 2268 .34000 2343 .715001894 .47000 1969 .84500 2044 .22000 2119 .59500 2194 .97000 2269 .34500 2344 .720001895 .47500 1970 .85000 2045 .22500 2120 .60000 2195 .97500 2270 .35000 2345 .725001896 .48000 1971 .85500 2046 .23000 2121 .60500 2196 .98000 2271 .35500 2346 .730001897 .48500 1972 .86000 2047 .23500 2122 .61000 2197 .98500 2272 .36000 2347 .735001898 .49000 1973 .86500 2048 .24000 2123 .61500 2198 .99000 2273 .36500 2348 .740001899 .49500 1974 .87000 2049 .24500 2124 .62000 2199 .99500 2274 .37000 2349 .745001900 137.50000 1975 .87500 2050 138.25000 2125 .62500 2200 139.00000 2275 .37500 2350 139.750001901 .50500 1976 .88000 2051 .25500 2126 .63000 2201 .00500 2276 .38000 2351 .755001902 .51000 1977 .88500 2052 .26000 2127 .63500 2202 .01000 2277 .38500 2352 .760001903 .51500 1978 .89000 2053 .26500 2128 .64000 2203 .01500 2278 .39000 2353 .765001904 .52000 1979 .89500 2054 .27000 2129 .64500 2204 .02000 2279 .39500 2354 .770001905 .52500 1980 .90000 2055 .27500 2130 .65000 2205 .02500 2280 .40000 2355 .775001906 .53000 1981 .90500 2056 .28000 2131 .65500 2206 .03000 2281 .40500 2356 .780001907 .53500 1982 .91000 2057 .28500 2132 .66000 2207 .03500 2282 .41000 2357 .785001908 .54000 1983 .91500 2058 .29000 2133 .66500 2208 .04000 2283 .41500 2358 .790001909 .54500 1984 .92000 2059 .29500 2134 .67000 2209 .04500 2284 .42000 2359 .795001910 .55000 1985 .92500 2060 .30000 2135 .67500 2210 .05000 2285 .42500 2360 .800001911 .55500 1986 .93000 2061 .30500 2136 .68000 2211 .05500 2286 .43000 2361 .805001912 .56000 1987 .93500 2062 .31000 2137 .68500 2212 .06000 2287 .43500 2362 .810001913 .56500 1988 .94000 2063 .31500 2138 .69000 2213 .06500 2288 .44000 2363 .815001914 .57000 1989 .94500 2064 .32000 2139 .69500 2214 .07000 2289 .44500 2364 .820001915 .57500 1990 .95000 2065 .32500 2140 .70000 2215 .07500 2290 .45000 2365 .825001916 .58000 1991 .95500 2066 .33000 2141 .70500 2216 .08000 2291 .45500 2366 .830001917 .58500 1992 .96000 2067 .33500 2142 .71000 2217 .08500 2292 .46000 2367 .835001918 .59000 1993 .96500 2068 .34000 2143 .71500 2218 .09000 2293 .46500 2368 .840001919 .59500 1994 .97000 2069 .34500 2144 .72000 2219 .09500 2294 .47000 2369 .845001920 .60000 1995 .97500 2070 .35000 2145 .72500 2220 .10000 2295 .47500 2370 .850001921 .60500 1996 .98000 2071 .35500 2146 .73000 2221 .10500 2296 .48000 2371 .855001922 .61000 1997 .98500 2072 .36000 2147 .73500 2222 .11000 2297 .48500 2372 .860001923 .61500 1998 .99000 2073 .36500 2148 .74000 2223 .11500 2298 .49000 2373 .865001924 .62000 1999 .99500 2074 .37000 2149 .74500 2224 .12000 2299 .49500 2374 .87000
1-4VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHzVT-3/140 Channel Designation Table: 132 to 150 MHz, 5 kHz Increments (continued)Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Num. (MHz) Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)2375 139.87500 2450 140.25000 2525 140.62500 2600 141.00000 2675 141.37500 2750 141.75000 2825 142.125002376 .88000 2451 .25500 2526 .63000 2601 .00500 2676 .38000 2751 .75500 2826.130002377 .88500 2452 .26000 2527 .63500 2602 .01000 2677 .38500 2752 .76000 2827 .135002378 .89000 2453 .26500 2528 .64000 2603 .01500 2678 .39000 2753 .76500 2828 .140002379 .89500 2454 .27000 2529 .64500 2604 .02000 2679 .39500 2754 .77000 2829 .145002380 .90000 2455 .27500 2530 .65000 2605 .02500 2680 .40000 2755 .77500 2830 .150002381 .90500 2456 .28000 2531 .65500 2606 .03000 2681 .40500 2756 .78000 2831 .155002382 .91000 2457 .28500 2532 .66000 2607 .03500 2682 .41000 2757 .78500 2832 .160002383 .91500 2458 .29000 2533 .66500 2608 .04000 2683 .41500 2758 .79000 2833 .165002384 .92000 2459 .29500 2534 .67000 2609 .04500 2684 .42000 2759 .79500 2834 .170002385 .92500 2460 .30000 2535 .67500 2610 .05000 2685 .42500 2760 .80000 2835 .175002386.93000 2461 .30500 2536 .68000 2611 .05500 2686 .43000 2761 .80500 2836 .180002387 .93500 2462 .31000 2537 .68500 2612 .06000 2687 .43500 2762 .81000 2837 .185002388 .94000 2463 .31500 2538 .69000 2613 .06500 2688 .44000 2763 .81500 2838 .190002389 .94500 2464 .32000 2539 .69500 2614 .07000 2689 .44500 2764 .82000 2839 .195002390 .95000 2465 .32500 2540 .70000 2615 .07500 2690 .45000 2765 .82500 2840 .200002391 .95500 2466 .33000 2541 .70500 2616 .08000 2691 .45500 2766 .83000 2841 .205002392 .96000 2467.33500 2542 .71000 2617 .08500 2692 .46000 2767 .83500 2842 .210002393 .96500 2468 .34000 2543 .71500 2618 .09000 2693 .46500 2768 .84000 2843 .215002394 .97000 2469 .34500 2544 .72000 2619 .09500 2694 .47000 2769 .84500 2844 .220002395 .97500 2470.35000 2545 .72500 2620 .10000 2695 .47500 2770 .85000 2845 .225002396 .98000 2471 .35500 2546 .73000 2621 .10500 2696 .48000 2771 .85500 2846 .230002397 .98500 2472 .36000 2547 .73500 2622 .11000 2697 .48500 2772 .86000 2847 .235002398 .99000 2473 .36500 2548 .74000 2623 .11500 2698 .49000 2773 .86500 2848 .240002399 .99500 2474 .37000 2549 .74500 2624 .12000 2699 .49500 2774 .87000 2849 .245002400 140.00000 2475 .37500 2550 140.75000 2625 .12500 2700 141.50000 2775 .87500 2850 142.250002401 .00500 2476.38000 2551 .75500 2626 .13000 2701 .50500 2776 .88000 2851 .255002402 .01000 2477 .38500 2552 .76000 2627 .13500 2702 .51000 2777 .88500 2852 .260002403 .01500 2478 .39000 2553 .76500 2628 .14000 2703 .51500 2778 .89000 2853 .265002404 .02000 2479.39500 2554 .77000 2629 .14500 2704 .52000 2779 .89500 2854 .270002405 .02500 2480 .40000 2555 .77500 2630 .15000 2705 .52500 2780 .90000 2855 .275002406 .03000 2481 .40500 2556 .78000 2631 .15500 2706 .53000 2781 .90500 2856 .280002407 .03500 2482 .41000 2557 .78500 2632 .16000 2707 .53500 2782 .91000 2857 .285002408 .04000 2483 .41500 2558 .79000 2633 .16500 2708 .54000 2783 .91500 2858 .290002409 .04500 2484 .42000 2559 .79500 2634 .17000 2709 .54500 2784 .92000 2859 .295002410 .05000 2485 .42500 2560.80000 2635 .17500 2710 .55000 2785 .92500 2860 .300002411 .05500 2486 .43000 2561 .80500 2636 .18000 2711 .55500 2786 .93000 2861 .305002412 .06000 2487 .43500 2562 .81000 2637 .18500 2712 .56000 2787 .93500 2862 .310002413 .06500 2488 .44000 2563.81500 2638 .19000 2713 .56500 2788 .94000 2863 .315002414 .07000 2489 .44500 2564 .82000 2639 .19500 2714 .57000 2789 .94500 2864 .320002415 .07500 2490 .45000 2565 .82500 2640 .20000 2715 .57500 2790 .95000 2865 .325002416 .08000 2491 .45500 2566 .83000 2641 .20500 2716 .58000 2791 .95500 2866 .330002417 .08500 2492 .46000 2567 .83500 2642 .21000 2717 .58500 2792 .96000 2867 .335002418 .09000 2493 .46500 2568 .84000 2643 .21500 2718 .59000 2793 .96500 2868 .340002419 .09500 2494 .47000 2569 .84500 2644.22000 2719 .59500 2794 .97000 2869 .345002420 .10000 2495 .47500 2570 .85000 2645 .22500 2720 .60000 2795 .97500 2870 .350002421 .10500 2496 .48000 2571 .85500 2646 .23000 2721 .60500 2796 .98000 2871 .355002422 .11000 2497 .48500 2572 .86000 2647.23500 2722 .61000 2797 .98500 2872 .360002423 .11500 2498 .49000 2573 .86500 2648 .24000 2723 .61500 2798 .99000 2873 .365002424 .12000 2499 .49500 2574 .87000 2649 .24500 2724 .62000 2799 .99500 2874 .370002425 .12500 2500 140.50000 2575 .87500 2650 141.25000 2725 .62500 2800 142.00000 2875 .375002426 .13000 2501 .50500 2576 .88000 2651 .25500 2726 .63000 2801 .00500 2876 .380002427 .13500 2502 .51000 2577 .88500 2652 .26000 2727 .63500 2802 .01000 2877 .385002428 .14000 2503 .51500 2578 .89000 2653.26500 2728 .64000 2803 .01500 2878 .390002429 .14500 2504 .52000 2579 .89500 2654 .27000 2729 .64500 2804 .02000 2879 .395002430 .15000 2505 .52500 2580 .90000 2655 .27500 2730 .65000 2805 .02500 2880 .400002431 .15500 2506 .53000 2581 .90500 2656 .280002731 .65500 2806 .03000 2881 .405002432 .16000 2507 .53500 2582 .91000 2657 .28500 2732 .66000 2807 .03500 2882 .410002433 .16500 2508 .54000 2583 .91500 2658 .29000 2733 .66500 2808 .04000 2883 .415002434 .17000 2509 .54500 2584 .92000 2659 .295002734.67000 2809 .04500 2884 .420002435 .17500 2510 .55000 2585 .92500 2660 .30000 2735 .67500 2810 .05000 2885 .425002436 .18000 2511 .55500 2586 .93000 2661 .30500 2736 .68000 2811 .05500 2886 .430002437 .18500 2512 .56000 2587 .93500 2662 .31000 2737.68500 2812 .06000 2887 .435002438 .19000 2513 .56500 2588 .94000 2663 .31500 2738 .69000 2813 .06500 2888 .440002439 .19500 2514 .57000 2589 .94500 2664 .32000 2739 .69500 2814 .07000 2889 .445002440 .20000 2515 .57500 2590 .95000 2665 .32500 2740 .700002815 .07500 2890 .450002441 .20500 2516 .58000 2591 .95500 2666 .33000 2741 .70500 2816 .08000 2891 .455002442 .21000 2517 .58500 2592 .96000 2667 .33500 2742 .71000 2817 .08500 2892 .460002443 .21500 2518 .59000 2593 .96500 2668 .34000 2743 .715002818.09000 2893 .465002444 .22000 2519 .59500 2594 .97000 2669 .34500 2744 .72000 2819 .09500 2894 .470002445 .22500 2520 .60000 2595 .97500 2670 .35000 2745 .72500 2820 .10000 2895 .475002446 .23000 2521 .60500 2596 .98000 2671 .35500 2746 .73000 2821.10500 2896 .480002447 .23500 2522 .61000 2597 .98500 2672 .36000 2747 .73500 2822 .11000 2897 .485002448 .24000 2523 .61500 2598 .99000 2673 .36500 2748 .74000 2823 .11500 2898 .490002449 .24500 2524 .62000 2599 .99500 2674 .37000 2749 .74500 2824 .120002899 .49500
VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHz1-5VT-3/140 Channel Designation Table: 132 to 150 MHz, 5 kHz Increments (continued)Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num. (MHz)2900 142.50000 2975 142.87500 3050 143.25000 3125 143.62500 3200 144.00000 3275 144.37500 3350 144.750002901 .50500 2976 .88000 3051 .25500 3126 .63000 3201 .00500 3276 .38000 3351 .755002902 .51000 2977 .88500 3052 .26000 3127 .63500 3202 .010003277 .38500 3352 .760002903 .51500 2978 .89000 3053 .26500 3128 .64000 3203 .01500 3278 .39000 3353 .765002904 .52000 2979 .89500 3054 .27000 3129 .64500 3204 .02000 3279 .39500 3354 .770002905 .52500 2980 .90000 3055 .27500 3130 .65000 3205 .02500 3280 .40000 3355 .775002906 .53000 2981 .90500 3056 .28000 3131 .65500 3206 .03000 3281 .40500 3356 .780002907 .53500 2982 .91000 3057 .28500 3132 .66000 3207 .03500 3282 .41000 3357 .785002908 .54000 2983 .91500 3058 .29000 3133 .66500 3208 .04000 3283 .415003358 .790002909 .54500 2984 .92000 3059 .29500 3134 .67000 3209 .04500 3284 .42000 3359 .795002910 .55000 2985 .92500 3060 .30000 3135 .67500 3210 .05000 3285 .42500 3360 .800002911 .55500 2986 .93000 3061 .30500 3136 .68000 3211 .05500 3286 .430003361 .805002912 .56000 2987 .93500 3062 .31000 3137 .68500 3212 .06000 3287 .43500 3362 .810002913 .56500 2988 .94000 3063 .31500 3138 .69000 3213 .06500 3288 .44000 3363 .815002914 .57000 2989 .94500 3064 .32000 3139 .69500 3214 .07000 3289 .44500 3364 .820002915 .57500 2990 .95000 3065 .32500 3140 .70000 3215 .07500 3290 .45000 3365 .825002916 .58000 2991 .95500 3066 .33000 3141 .70500 3216 .08000 3291 .45500 3366 .830002917 .58500 2992 .96000 3067 .33500 3142 .71000 3217 .08500 3292 .46000 3367 .835002918 .59000 2993 .96500 3068 .34000 3143 .71500 3218 .09000 3293 .46500 3368 .840002919 .59500 2994 .97000 3069 .34500 3144 .72000 3219 .09500 3294 .47000 3369 .845002920 .60000 2995 .97500 3070 .35000 3145 .72500 3220 .10000 3295 .47500 3370 .850002921 .60500 2996 .98000 3071 .35500 3146 .73000 3221 .10500 3296 .48000 3371 .855002922 .61000 2997 .98500 3072 .36000 3147 .73500 3222 .11000 3297 .48500 3372 .860002923 .61500 2998 .99000 3073 .36500 3148 .74000 3223 .11500 3298 .49000 3373 .865002924 .62000 2999 .99500 3074 .37000 3149 .74500 3224 .12000 3299 .49500 3374 .870002925 .62500 3000 143.00000 3075 .37500 3150 143.75000 3225 .12500 3300 144.50000 3375 .875002926 .63000 3001 .00500 3076 .38000 3151 .75500 3226 .13000 3301 .50500 3376 .880002927 .63500 3002 .01000 3077 .38500 3152 .76000 3227 .13500 3302 .51000 3377 .885002928 .64000 3003 .01500 3078 .39000 3153 .76500 3228 .14000 3303 .51500 3378 .890002929 .64500 3004 .02000 3079 .39500 3154 .77000 3229 .14500 3304 .52000 3379 .895002930 .65000 3005 .02500 3080 .40000 3155 .77500 3230 .15000 3305 .52500 3380 .900002931 .65500 3006 .03000 3081 .40500 3156 .78000 3231 .15500 3306 .53000 3381 .905002932 .66000 3007 .03500 3082 .41000 3157 .78500 3232 .16000 3307 .53500 3382 .910002933 .66500 3008 .04000 3083 .41500 3158 .79000 3233 .16500 3308 .54000 3383 .915002934 .67000 3009 .04500 3084 .42000 3159 .79500 3234 .17000 3309 .54500 3384 .920002935 .67500 3010 .05000 3085 .42500 3160 .80000 3235 .17500 3310 .55000 3385 .925002936 .68000 3011 .05500 3086 .43000 3161 .80500 3236 .18000 3311 .55500 3386 .930002937 .68500 3012 .06000 3087 .43500 3162 .81000 3237 .18500 3312 .56000 3387 .935002938 .69000 3013 .06500 3088 .44000 3163 .81500 3238 .19000 3313 .56500 3388 .940002939 .69500 3014 .07000 3089 .44500 3164 .82000 3239 .19500 3314 .57000 3389 .945002940 .70000 3015 .07500 3090 .45000 3165 .82500 3240 .20000 3315 .57500 3390 .950002941 .70500 3016 .08000 3091 .45500 3166 .83000 3241 .20500 3316 .58000 3391 .955002942 .71000 3017 .08500 3092 .46000 3167 .83500 3242 .21000 3317 .58500 3392 .960002943 .71500 3018 .09000 3093 .46500 3168 .84000 3243 .21500 3318 .59000 3393 .965002944 .72000 3019 .09500 3094 .47000 3169 .84500 3244 .22000 3319 .59500 3394 .970002945 .72500 3020 .10000 3095 .47500 3170 .85000 3245 .22500 3320 .60000 3395 .975002946 .73000 3021 .10500 3096 .48000 3171 .85500 3246 .23000 3321 .60500 3396 .980002947 .73500 3022 .11000 3097 .48500 3172 .86000 3247 .23500 3322 .61000 3397 .985002948 .74000 3023 .11500 3098 .49000 3173 .86500 3248 .24000 3323 .61500 3398 .990002949 .74500 3024 .12000 3099 .49500 3174 .87000 3249 .24500 3324 .62000 3399 .995002950 142.75000 3025 .12500 3100 143.50000 3175 .87500 3250 144.25000 3325 .62500 3400 145.000002951 .75500 3026 .13000 3101 .50500 3176 .88000 3251 .25500 3326 .63000 3401 .005002952 .76000 3027 .13500 3102 .51000 3177 .88500 3252 .26000 3327 .63500 3402 .010002953 .76500 3028 .14000 3103 .51500 3178 .89000 3253 .26500 3328 .64000 3403 .015002954 .77000 3029 .14500 3104 .52000 3179 .89500 3254 .27000 3329 .64500 3404 .020002955 .77500 3030 .15000 3105 .52500 3180 .90000 3255 .27500 3330 .65000 3405 .025002956 .78000 3031 .15500 3106 .53000 3181 .90500 3256 .28000 3331 .65500 3406 .030002957 .78500 3032 .16000 3107 .53500 3182 .91000 3257 .28500 3332 .66000 3407 .035002958 .79000 3033 .16500 3108 .54000 3183 .91500 3258 .29000 3333 .66500 3408 .040002959 .79500 3034 .17000 3109 .54500 3184 .92000 3259 .29500 3334 .67000 3409 .045002960 .80000 3035 .17500 3110 .55000 3185 .92500 3260 .30000 3335 .67500 3410 .050002961 .80500 3036 .18000 3111 .55500 3186 .93000 3261 .30500 3336 .68000 3411 .055002962 .81000 3037 .18500 3112 .56000 3187 .93500 3262 .31000 3337 .68500 3412 .060002963 .81500 3038 .19000 3113 .56500 3188 .94000 3263 .31500 3338 .69000 3413 .065002964 .82000 3039 .19500 3114 .57000 3189 .94500 3264 .32000 3339 .69500 3414 .070002965 .82500 3040 .20000 3115 .57500 3190 .95000 3265 .32500 3340 .70000 3415 .075002966 .83000 3041 .20500 3116 .58000 3191 .95500 3266 .33000 3341 .70500 3416 .080002967 .83500 3042 .21000 3117 .58500 3192 .96000 3267 .33500 3342 .71000 3417 .085002968 .84000 3043 .21500 3118 .59000 3193 .96500 3268 .34000 3343 .71500 3418 .090002969 .84500 3044 .22000 3119 .59500 3194 .97000 3269 .34500 3344 .72000 3419 .095002970 .85000 3045 .22500 3120 .60000 3195 .97500 3270 .35000 3345 .72500 3420 .100002971 .85500 3046 .23000 3121 .60500 3196 .98000 3271 .35500 3346 .73000 3421 .105002972 .86000 3047 .23500 3122 .61000 3197 .98500 3272 .36000 3347 .73500 3422 .110002973 .86500 3048 .24000 3123 .61500 3198 .99000 3273 .36500 3348 .74000 3423 .115002974 .87000 3049 .24500 3124 .62000 3199 .99500 3274 .37000 3349 .74500 3424 .12000
1-6VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHzVT-3/140 Channel Designation Table: 132 to 150 MHz, 5 kHz Increments (continued)Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)3425 145.12500 3500 145.50000 3575 145.87500 3650 146.250003725 146.62500 3800 147.00000 3875 147.375003426 .13000 3501 .50500 3576 .88000 3651 .25500 3726 .63000 3801 .00500 3876 .380003427 .13500 3502 .51000 3577 .88500 3652 .26000 3727 .63500 3802 .01000 3877 .385003428 .14000 3503 .51500 3578 .89000 3653 .26500 3728 .64000 3803 .01500 3878 .390003429 .14500 3504 .52000 3579 .89500 3654 .27000 3729 .64500 3804 .02000 3879 .395003430 .15000 3505 .52500 3580 .90000 3655 .27500 3730 .65000 3805 .02500 3880 .400003431 .15500 3506 .53000 3581 .90500 3656 .28000 3731 .65500 3806 .03000 3881 .405003432 .16000 3507 .53500 3582 .91000 3657 .28500 3732 .66000 3807 .03500 3882 .410003433 .16500 3508 .54000 3583 .91500 3658 .29000 3733 .66500 3808 .04000 3883 .415003434 .17000 3509 .54500 3584 .92000 3659 .29500 3734 .67000 3809 .04500 3884 .420003435 .17500 3510 .55000 3585 .92500 3660 .30000 3735 .67500 3810 .05000 3885 .425003436 .18000 3511 .55500 3586 .93000 3661 .30500 3736 .68000 3811 .05500 3886 .430003437 .18500 3512 .56000 3587 .93500 3662 .31000 3737 .68500 3812 .06000 3887 .435003438 .19000 3513 .56500 3588 .94000 3663 .31500 3738 .69000 3813 .06500 3888 .440003439 .19500 3514 .57000 3589 .94500 3664 .32000 3739 .69500 3814 .07000 3889 .445003440 .20000 3515 .57500 3590 .95000 3665 .32500 3740 .70000 3815 .07500 3890 .450003441 .20500 3516 .58000 3591 .95500 3666 .33000 3741 .70500 3816 .08000 3891 .455003442 .21000 3517 .58500 3592 .96000 3667 .33500 3742 .71000 3817 .08500 3892 .460003443 .21500 3518 .59000 3593 .96500 3668 .34000 3743 .71500 3818 .09000 3893 .465003444 .22000 3519 .59500 3594 .97000 3669 .34500 3744 .72000 3819 .09500 3894 .470003445 .22500 3520 .60000 3595 .97500 3670 .35000 3745 .72500 3820 .10000 3895 .475003446 .23000 3521 .60500 3596 .98000 3671 .35500 3746 .73000 3821 .10500 3896 .480003447 .23500 3522 .61000 3597 .98500 3672 .36000 3747 .73500 3822 .11000 3897 .485003448 .24000 3523 .61500 3598 .99000 3673 .36500 3748 .74000 3823 .11500 3898 .490003449 .24500 3524 .62000 3599 .99500 3674 .37000 3749 .74500 3824 .12000 3899 .495003450 145.25000 3525 .62500 3600 146.00000 3675 .37500 3750 146.75000 3825 .12500 3900 147.500003451 .25500 3526 .63000 3601 .00500 3676 .38000 3751 .75500 3826 .13000 3901 .505003452 .26000 3527 .63500 3602 .01000 3677 .38500 3752 .76000 3827 .13500 3902 .510003453 .26500 3528 .64000 3603 .01500 3678 .39000 3753 .76500 3828 .14000 3903 .515003454 .27000 3529 .64500 3604 .02000 3679 .39500 3754 .77000 3829 .14500 3904 .520003455 .27500 3530 .65000 3605 .02500 3680 .40000 3755 .77500 3830 .15000 3905 .525003456 .28000 3531 .65500 3606 .03000 3681 .40500 3756 .78000 3831 .15500 3906 .530003457 .28500 3532 .66000 3607 .03500 3682 .41000 3757 .78500 3832 .16000 3907 .535003458 .29000 3533 .66500 3608 .04000 3683 .41500 3758 .79000 3833 .16500 3908 .540003459 .29500 3534 .67000 3609 .04500 3684 .42000 3759 .79500 3834 .17000 3909 .545003460 .30000 3535 .67500 3610 .05000 3685 .42500 3760 .80000 3835 .17500 3910 .550003461 .30500 3536 .68000 3611 .05500 3686 .43000 3761 .80500 3836 .18000 3911 .555003462 .31000 3537 .68500 3612 .06000 3687 .43500 3762 .81000 3837 .18500 3912 .560003463 .31500 3538 .69000 3613 .06500 3688 .44000 3763 .81500 3838 .19000 3913 .565003464 .32000 3539 .69500 3614 .07000 3689 .44500 3764 .82000 3839 .19500 3914 .570003465 .32500 3540 .70000 3615 .07500 3690 .45000 3765 .82500 3840 .20000 3915 .575003466 .33000 3541 .70500 3616 .08000 3691 .45500 3766 .83000 3841 .20500 3916 .580003467 .33500 3542 .71000 3617 .08500 3692 .46000 3767 .83500 3842 .21000 3917 .585003468 .34000 3543 .71500 3618 .09000 3693 .46500 3768 .84000 3843 .21500 3918 .590003469 .34500 3544 .72000 3619 .09500 3694 .47000 3769 .84500 3844 .22000 3919 .595003470 .35000 3545 .72500 3620 .10000 3695 .47500 3770 .85000 3845 .22500 3920 .600003471 .35500 3546 .73000 3621 .10500 3696 .48000 3771 .85500 3846 .23000 3921 .605003472 .36000 3547 .73500 3622 .11000 3697 .48500 3772 .86000 3847 .23500 3922 .610003473 .36500 3548 .74000 3623 .11500 3698 .49000 3773 .86500 3848 .24000 3923 .615003474 .37000 3549 .74500 3624 .12000 3699 .49500 3774 .87000 3849 .24500 3924 .620003475 .37500 3550 145.75000 3625 .12500 3700 146.50000 3775 .87500 3850 147.25000 3925 .625003476 .38000 3551 .75500 3626 .13000 3701 .50500 3776 .88000 3851 .25500 3926 .630003477 .38500 3552 .76000 3627 .13500 3702 .51000 3777 .88500 3852 .26000 3927 .635003478 .39000 3553 .76500 3628 .14000 3703 .51500 3778 .89000 3853 .26500 3928 .640003479 .39500 3554 .77000 3629 .14500 3704 .52000 3779 .89500 3854 .27000 3929 .645003480.40000 3555 .77500 3630 .15000 3705 .52500 3780 .90000 3855 .27500 3930 .650003481 .40500 3556 .78000 3631 .15500 3706 .53000 3781 .90500 3856 .28000 3931 .655003482 .41000 3557 .78500 3632 .16000 3707 .53500 3782 .91000 3857 .28500 3932 .660003483 .41500 3558 .79000 3633 .16500 3708 .54000 3783 .91500 3858 .29000 3933 .665003484 .42000 3559 .79500 3634 .17000 3709 .54500 3784 .92000 3859 .29500 3934 .670003485 .42500 3560 .80000 3635 .17500 3710 .55000 3785 .92500 3860 .30000 3935 .675003486 .43000 3561.80500 3636 .18000 3711 .55500 3786 .93000 3861 .30500 3936 .680003487 .43500 3562 .81000 3637 .18500 3712 .56000 3787 .93500 3862 .31000 3937 .685003488 .44000 3563 .81500 3638 .19000 3713 .56500 3788 .94000 3863 .31500 3938 .690003489 .44500 3564.82000 3639 .19500 3714 .57000 3789 .94500 3864 .32000 3939 .695003490 .45000 3565 .82500 3640 .20000 3715 .57500 3790 .95000 3865 .32500 3940 .700003491 .45500 3566 .83000 3641 .20500 3716 .58000 3791 .95500 3866 .33000 3941 .705003492 .46000 3567 .83500 3642 .21000 3717 .58500 3792 .96000 3867 .33500 3942 .710003493 .46500 3568 .84000 3643 .21500 3718 .59000 3793 .96500 3868 .34000 3943 .715003494 .47000 3569 .84500 3644 .22000 3719 .59500 3794 .97000 3869 .34500 3944 .720003495 .47500 3570 .85000 3645.22500 3720 .60000 3795 .97500 3870 .35000 3945 .725003496 .48000 3571 .85500 3646 .23000 3721 .60500 3796 .98000 3871 .35500 3946 .730003497 .48500 3572 .86000 3647 .23500 3722 .61000 3797 .98500 3872 .36000 3947 .735003498 .49000 3573 .86500 3648.24000 3723 .61500 3798 .99000 3873 .36500 3948 .740003499 .49500 3574 .87000 3649 .24500 3724 .62000 3799 .99500 3874 .37000 3949 .74500
VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHz1-7VT-3/140 Channel Designation Table: 132 to 150 MHz, 5 kHz Increments (continued)Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)3950 147.75000 4025 148.12500 4100 148.50000 4175 148.87500 4250 149.25000 4325 149.62500 4400 150.000003951 .75500 4026 .130004101 .50500 4176 .88000 4251 .25500 4326 .630003952 .76000 4027 .13500 4102 .51000 4177 .88500 4252 .26000 4327 .635003953 .76500 4028 .14000 4103 .51500 4178 .89000 4253 .26500 4328 .640003954 .77000 4029 .14500 4104 .52000 4179 .89500 4254 .270004329.645003955 .77500 4030 .15000 4105 .52500 4180 .90000 4255 .27500 4330 .650003956 .78000 4031 .15500 4106 .53000 4181 .90500 4256 .28000 4331 .655003957 .78500 4032 .16000 4107 .53500 4182 .91000 4257 .28500 4332 .660003958 .79000 4033 .16500 4108.54000 4183 .91500 4258 .29000 4333 .665003959 .79500 4034 .17000 4109 .54500 4184 .92000 4259 .29500 4334 .670003960 .80000 4035 .17500 4110 .55000 4185 .92500 4260 .30000 4335 .675003961 .80500 4036 .18000 4111 .55500 4186 .93000 4261 .30500 4336 .680003962 .81000 4037 .18500 4112 .56000 4187 .93500 4262 .31000 4337 .685003963 .81500 4038 .19000 4113 .56500 4188 .94000 4263 .31500 4338 .690003964 .82000 4039 .19500 4114 .57000 4189 .94500 4264 .32000 4339 .695003965 .82500 4040 .20000 4115 .575004190.95000 4265 .32500 4340 .700003966 .83000 4041 .20500 4116 .58000 4191 .95500 4266 .33000 4341 .705003967 .83500 4042 .21000 4117 .58500 4192 .96000 4267 .33500 4342 .710003968 .84000 4043 .21500 4118 .59000 4193 .96500 4268 .34000 4343 .715003969.84500 4044 .22000 4119 .59500 4194 .97000 4269 .34500 4344 .720003970 .85000 4045 .22500 4120 .60000 4195 .97500 4270 .35000 4345 .725003971 .85500 4046 .23000 4121 .60500 4196 .98000 4271 .35500 4346 .730003972 .86000 4047 .23500 4122 .61000 4197 .985004272 .36000 4347 .735003973 .86500 4048 .24000 4123 .61500 4198 .99000 4273 .36500 4348 .740003974 .87000 4049 .24500 4124 .62000 4199 .99500 4274 .37000 4349 .745003975 .87500 4050 148.25000 4125 .62500 4200 149.00000 4275 .37500 4350 149.750003976 .88000 4051 .25500 4126 .63000 4201 .00500 4276 .38000 4351 .755003977 .88500 4052 .26000 4127 .63500 4202 .01000 4277 .38500 4352 .760003978 .89000 4053 .26500 4128 .64000 4203 .01500 4278 .39000 4353 .765003979 .89500 4054 .27000 4129 .64500 4204 .020004279 .39500 4354 .770003980 .90000 4055 .27500 4130 .65000 4205 .02500 4280 .40000 4355 .775003981 .90500 4056 .28000 4131 .65500 4206 .03000 4281 .40500 4356 .780003982 .91000 4057 .28500 4132 .66000 4207 .03500 4282 .41000 4357 .785003983 .915004058 .29000 4133 .66500 4208 .04000 4283 .41500 4358 .790003984 .92000 4059 .29500 4134 .67000 4209 .04500 4284 .42000 4359 .795003985 .92500 4060 .30000 4135 .67500 4210 .05000 4285 .42500 4360 .800003986 .93000 4061 .30500 4136 .68000 4211 .05500 4286 .43000 4361 .805003987 .93500 4062 .31000 4137 .68500 4212 .06000 4287 .43500 4362 .810003988 .94000 4063 .31500 4138 .69000 4213 .06500 4288 .44000 4363 .815003989 .94500 4064 .32000 4139 .69500 4214 .07000 4289 .44500 4364 .820003990 .95000 4065 .325004140 .70000 4215 .07500 4290 .45000 4365 .825003991 .95500 4066 .33000 4141 .70500 4216 .08000 4291 .45500 4366 .830003992 .96000 4067 .33500 4142 .71000 4217 .08500 4292 .46000 4367 .835003993 .96500 4068 .34000 4143 .71500 4218 .09000 4293 .465004368 .840003994 .97000 4069 .34500 4144 .72000 4219 .09500 4294 .47000 4369 .845003995 .97500 4070 .35000 4145 .72500 4220 .10000 4295 .47500 4370 .850003996 .98000 4071 .35500 4146 .73000 4221 .10500 4296 .48000 4371 .855003997 .98500 4072 .36000 4147 .73500 4222 .11000 4297 .48500 4372 .860003998 .99000 4073 .36500 4148 .74000 4223 .11500 4298 .49000 4373 .865003999 .99500 4074 .37000 4149 .74500 4224 .12000 4299 .49500 4374 .870004000 148.00000 4075 .37500 4150 148.75000 4225 .12500 4300 149.50000 4375 .875004001 .00500 4076 .38000 4151 .75500 4226 .13000 4301 .50500 4376 .880004002 .01000 4077 .38500 4152 .76000 4227 .13500 4302 .51000 4377 .885004003 .01500 4078 .39000 4153 .76500 4228 .14000 4303 .51500 4378 .890004004 .02000 4079 .39500 4154 .77000 4229 .14500 4304 .52000 4379 .895004005 .02500 4080 .40000 4155 .77500 4230 .15000 4305 .52500 4380 .900004006 .03000 4081 .40500 4156 .78000 4231 .15500 4306 .53000 4381 .905004007 .03500 4082 .41000 4157 .78500 4232 .16000 4307 .53500 4382 .910004008 .04000 4083 .41500 4158 .79000 4233 .16500 4308 .54000 4383 .915004009 .04500 4084 .42000 4159 .79500 4234 .17000 4309 .54500 4384 .920004010 .05000 4085 .42500 4160 .80000 4235 .17500 4310 .55000 4385 .925004011 .05500 4086 .43000 4161 .80500 4236 .18000 4311 .55500 4386 .930004012 .06000 4087 .43500 4162 .81000 4237 .18500 4312 .56000 4387 .935004013 .06500 4088 .44000 4163 .81500 4238 .19000 4313 .56500 4388 .940004014 .07000 4089 .44500 4164 .82000 4239 .19500 4314 .57000 4389 .945004015 .07500 4090 .45000 4165 .82500 4240 .20000 4315 .57500 4390 .950004016 .08000 4091 .45500 4166 .83000 4241 .20500 4316 .58000 4391 .955004017 .08500 4092 .46000 4167 .83500 4242 .21000 4317 .58500 4392 .960004018 .09000 4093 .46500 4168 .84000 4243 .21500 4318 .59000 4393 .965004019 .09500 4094 .47000 4169 .84500 4244 .22000 4319 .59500 4394 .970004020 .10000 4095 .47500 4170 .85000 4245 .22500 4320 .60000 4395 .975004021 .10500 4096 .48000 4171 .85500 4246 .23000 4321 .60500 4396 .980004022 .11000 4097 .48500 4172 .86000 4247 .23500 4322 .61000 4397 .985004023 .11500 4098 .49000 4173 .86500 4248 .24000 4323 .61500 4398 .990004024 .12000 4099 .49500 4174 .87000 4249 .24500 4324 .62000 4399 .99500
1-8VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHzThis page intentionally left blank.
VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHz2-12 VT-3/140 Channel Designation Table: 132-150MHz, 6.25kHz IncrementsChan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)5640 132.00000 5715 132.46875 5790132.93750 5865 133.40625 5940 133.87500 6015 134.34375 6090 134.812505641 .00625 5716 .47500 5791 .94375 5866 .41250 5941 .88125 6016 .35000 6091 .818755642 .01250 5717 .48125 5792 .95000 5867 .41875 5942 .88750 6017 .35625 6092 .825005643 .01875 5718 .48750 5793 .95625 5868 .42500 5943 .89375 6018 .36250 6093 .831255644 .02500 5719 .49375 5794 .96250 5869 .43125 5944 .90000 6019 .36875 6094 .837505645 .03125 5720 132.50000 5795 .96875 5870 .43750 5945 .90625 6020 .37500 6095 .843755646 .03750 5721 .506255796 .97500 5871 .44375 5946 .91250 6021 .38125 6096 .850005647 .04375 5722 .51250 5797 .98125 5872 .45000 5947 .91875 6022 .38750 6097 .856255648 .05000 5723 .51875 5798 .98750 5873 .45625 5948 .92500 6023 .39375 6098 .862505649 .05625 5724 .525005799 .99375 5874 .46250 5949 .93125 6024 .40000 6099 .868755650 .06250 5725 .53125 5800 133.00000 5875 .46875 5950 .93750 6025 .40625 6100 .875005651 .06875 5726 .53750 5801 .00625 5876 .47500 5951 .94375 6026 .41250 6101 .881255652 .07500 5727 .543755802.01250 5877 .48125 5952 .95000 6027 .41875 6102 .887505653 .08125 5728 .55000 5803 .01875 5878 .48750 5953 .95625 6028 .42500 6103 .893755654 .08750 5729 .55625 5804 .02500 5879 .49375 5954 .96250 6029 .43125 6104 .900005655 .09375 5730 .56250 5805.03125 5880 133.50000 5955 .96875 6030 .43750 6105 .906255656 .10000 5731 .56875 5806 .03750 5881 .50625 5956 .97500 6031 .44375 6106 .912505657 .10625 5732 .57500 5807 .04375 5882 .51250 5957 .98125 6032 .45000 6107 .918755658 .11250 5733 .58125 5808.05000 5883 .51875 5958 .98750 6033 .45625 6108 .925005659 .11875 5734 .58750 5809 .05625 5884 .52500 5959 .99375 6034 .46250 6109 .931255660 .12500 5735 .59375 5810 .06250 5885 .53125 5960 134.00000 6035 .46875 6110 .937505661 .13125 5736 .60000 5811 .06875 5886 .53750 5961 .00625 6036 .47500 6111 .943755662 .13750 5737 .60625 5812 .07500 5887 .54375 5962 .01250 6037 .48125 6112 .950005663 .14375 5738 .61250 5813 .08125 5888 .55000 5963 .01875 6038 .48750 6113 .956255664 .15000 5739 .61875 5814 .08750 5889 .55625 5964 .02500 6039 .49375 6114 .962505665 .15625 5740 .62500 5815 .09375 5890 .56250 5965 .03125 6040 134.50000 6115 .968755666 .16250 5741 .63125 5816 .10000 5891 .56875 5966 .03750 6041 .50625 6116 .975005667 .16875 5742 .63750 5817 .106255892 .57500 5967 .04375 6042 .51250 6117 .981255668 .17500 5743 .64375 5818 .11250 5893 .58125 5968 .05000 6043 .51875 6118 .987505669 .18125 5744 .65000 5819 .11875 5894 .58750 5969 .05625 6044 .52500 6119 .993755670 .18750 5745 .65625 5820 .12500 5895 .59375 5970 .06250 6045 .53125 6120 135.000005671 .19375 5746 .66250 5821 .13125 5896 .60000 5971 .06875 6046 .53750 6121 .006255672 .20000 5747 .66875 5822 .13750 5897 .60625 5972 .07500 6047 .54375 6122 .012505673 .20625 5748 .67500 5823 .14375 5898.61250 5973 .08125 6048 .55000 6123 .018755674 .21250 5749 .68125 5824 .15000 5899 .61875 5974 .08750 6049 .55625 6124 .025005675 .21875 5750 .68750 5825 .15625 5900 .62500 5975 .09375 6050 .56250 6125 .031255676 .22500 5751 .69375 5826 .16250 5901 .631255976 .10000 6051 .56875 6126 .037505677 .23125 5752 .70000 5827 .16875 5902 .63750 5977 .10625 6052 .57500 6127 .043755678 .23750 5753 .70625 5828 .17500 5903 .64375 5978 .11250 6053 .58125 6128 .050005679 .24375 5754 .71250 5829 .18125 5904 .650005979.11875 6054 .58750 6129 .056255680 132.25000 5755 .71875 5830 .18750 5905 .65625 5980 .12500 6055 .59375 6130 .062505681 .25625 5756 .72500 5831 .19375 5906 .66250 5981 .13125 6056 .60000 6131 .068755682 .26250 5757 .73125 5832 .20000 5907 .66875 5982.13750 6057 .60625 6132 .075005683 .26875 5758 .73750 5833 .20625 5908 .67500 5983 .14375 6058 .61250 6133 .081255684 .27500 5759 .74375 5834 .21250 5909 .68125 5984 .15000 6059 .61875 6134 .087505685 .28125 5760 132.75000 5835 .21875 5910 .68750 5985 .15625 6060 .62500 6135 .093755686 .28750 5761 .75625 5836 .22500 5911 .69375 5986 .16250 6061 .63125 6136 .100005687 .29375 5762 .76250 5837 .23125 5912 .70000 5987 .16875 6062 .63750 6137 .106255688 .30000 5763 .76875 5838 .23750 5913 .70625 5988 .17500 6063 .64375 6138 .112505689 .30625 5764 .77500 5839 .24375 5914 .71250 5989 .18125 6064 .65000 6139 .118755690 .31250 5765 .78125 5840 133.25000 5915 .71875 5990 .18750 6065 .65625 6140 .125005691 .31875 5766 .78750 5841 .25625 5916 .72500 5991 .193756066 .66250 6141 .131255692 .32500 5767 .79375 5842 .26250 5917 .73125 5992 .20000 6067 .66875 6142 .137505693 .33125 5768 .80000 5843 .26875 5918 .73750 5993 .20625 6068 .67500 6143 .143755694 .33750 5769 .80625 5844 .27500 5919 .74375 5994 .212506069 .68125 6144 .150005695 .34375 5770 .81250 5845 .28125 5920 133.75000 5995 .21875 6070 .68750 6145 .156255696 .35000 5771 .81875 5846 .28750 5921 .75625 5996 .22500 6071 .69375 6146 .162505697 .35625 5772 .82500 5847 .29375 5922 .76250 5997 .231256072.70000 6147 .168755698 .36250 5773 .83125 5848 .30000 5923 .76875 5998 .23750 6073 .70625 6148 .175005699 .36875 5774 .83750 5849 .30625 5924 .77500 5999 .24375 6074 .71250 6149 .181255700 .37500 5775 .84375 5850 .31250 5925 .78125 6000 134.25000 6075.71875 6150 .187505701 .38125 5776 .85000 5851 .31875 5926 .78750 6001 .25625 6076 .72500 6151 .193755702 .38750 5777 .85625 5852 .32500 5927 .79375 6002 .26250 6077 .73125 6152 .200005703 .39375 5778 .86250 5853 .33125 5928 .80000 6003 .26875 6078.73750 6153 .206255704 .40000 5779 .86875 5854 .33750 5929 .80625 6004 .27500 6079 .74375 6154 .212505705 .40625 5780 .87500 5855 .34375 5930 .81250 6005 .28125 6080 134.75000 6155 .218755706 .41250 5781 .88125 5856 .35000 5931 .81875 6006 .28750 6081 .75625 6156 .225005707 .41875 5782 .88750 5857 .35625 5932 .82500 6007 .29375 6082 .76250 6157 .231255708 .42500 5783 .89375 5858 .36250 5933 .83125 6008 .30000 6083 .76875 6158 .237505709 .43125 5784 .90000 5859 .36875 5934 .83750 6009 .30625 6084 .77500 6159 .243755710 .43750 5785 .90625 5860 .37500 5935 .84375 6010 .31250 6085 .78125 6160 135.250005711 .44375 5786 .91250 5861 .38125 5936 .85000 6011 .31875 6086 .78750 6161 .256255712 .45000 5787 .91875 5862 .38750 5937 .85625 6012 .32500 6087 .793756162 .262505713 .45625 5788 .92500 5863 .39375 5938 .86250 6013 .33125 6088 .80000 6163 .268755714 .46250 5789 .93125 5864 .40000 5939 .86875 6014 .33750 6089 .80625 6164 .27500
2-2VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHzVT-3/140 Channel Designation Table: 132 to 150 MHz, 6.25 kHz Increments (continued)Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)6165 135.28125 6240 135.75000 6315 136.21875 6390 136.68750 6465 137.15625 6540137.62500 6615 138.093756166 .28750 6241 .75625 6316 .22500 6391 .69375 6466 .16250 6541 .63125 6616 .100006167 .29375 6242 .76250 6317 .23125 6392 .70000 6467 .16875 6542 .63750 6617 .106256168 .30000 6243 .76875 6318 .23750 6393 .70625 6468 .17500 6543 .64375 6618 .112506169 .30625 6244 .77500 6319 .24375 6394 .71250 6469 .18125 6544 .65000 6619 .118756170 .31250 6245 .78125 6320 136.25000 6395 .71875 6470 .18750 6545 .65625 6620 .125006171 .31875 6246 .78750 6321 .25625 6396 .72500 6471 .19375 6546.66250 6621 .131256172 .32500 6247 .79375 6322 .26250 6397 .73125 6472 .20000 6547 .66875 6622 .137506173 .33125 6248 .80000 6323 .26875 6398 .73750 6473 .20625 6548 .67500 6623 .143756174 .33750 6249 .80625 6324 .27500 6399 .74375 6474 .21250 6549 .681256624 .150006175 .34375 6250 .81250 6325 .28125 6400 136.75000 6475 .21875 6550 .68750 6625 .156256176 .35000 6251 .81875 6326 .28750 6401 .75625 6476 .22500 6551 .69375 6626 .162506177 .35625 6252 .82500 6327 .29375 6402 .76250 6477 .23125 6552 .70000 6627 .168756178 .36250 6253 .83125 6328 .30000 6403 .76875 6478 .23750 6553 .70625 6628 .175006179 .36875 6254 .83750 6329 .30625 6404 .77500 6479 .24375 6554 .71250 6629 .181256180 .37500 6255 .84375 6330 .31250 6405 .78125 6480 137.25000 6555 .71875 6630 .187506181 .38125 6256 .85000 6331 .31875 6406 .78750 6481 .25625 6556 .72500 6631 .193756182 .38750 6257 .85625 6332 .32500 6407 .79375 6482 .26250 6557 .73125 6632 .200006183 .39375 6258 .86250 6333 .33125 6408 .80000 6483 .26875 6558 .73750 6633 .206256184 .40000 6259 .86875 6334 .33750 6409 .80625 6484 .27500 6559 .74375 6634 .212506185 .40625 6260 .87500 6335 .34375 6410 .81250 6485 .28125 6560 137.75000 6635 .218756186 .41250 6261 .88125 6336 .35000 6411 .81875 6486 .28750 6561 .75625 6636 .225006187 .41875 6262 .88750 6337 .35625 6412 .82500 6487 .29375 6562 .76250 6637 .231256188 .42500 6263 .89375 6338 .36250 6413 .83125 6488 .30000 6563 .76875 6638 .237506189 .43125 6264 .90000 6339 .36875 6414 .83750 6489 .30625 6564 .77500 6639 .243756190 .43750 6265 .90625 6340 .37500 6415 .84375 6490 .31250 6565 .78125 6640 138.250006191 .44375 6266 .91250 6341 .38125 6416 .85000 6491 .31875 6566 .78750 6641 .256256192 .45000 6267 .91875 6342 .38750 6417 .85625 6492 .32500 6567 .79375 6642 .262506193 .45625 6268 .92500 6343 .39375 6418 .86250 6493 .33125 6568 .80000 6643 .268756194 .46250 6269 .93125 6344 .40000 6419 .86875 6494 .33750 6569 .80625 6644 .275006195 .46875 6270 .93750 6345 .40625 6420 .87500 6495 .34375 6570 .81250 6645 .281256196 .47500 6271 .94375 6346 .41250 6421 .88125 6496 .35000 6571 .81875 6646 .287506197 .48125 6272 .95000 6347 .41875 6422 .88750 6497 .35625 6572 .82500 6647 .293756198 .48750 6273 .95625 6348 .42500 6423 .89375 6498 .36250 6573 .83125 6648 .300006199.49375 6274 .96250 6349 .43125 6424 .90000 6499 .36875 6574 .83750 6649 .306256200 135.50000 6275 .96875 6350 .43750 6425 .90625 6500 .37500 6575 .84375 6650 .312506201 .50625 6276 .97500 6351 .44375 6426 .91250 6501 .38125 6576 .85000 6651 .318756202.51250 6277 .98125 6352 .45000 6427 .91875 6502 .38750 6577 .85625 6652 .325006203 .51875 6278 .98750 6353 .45625 6428 .92500 6503 .39375 6578 .86250 6653 .331256204 .52500 6279 .99375 6354 .46250 6429 .93125 6504 .40000 6579 .86875 6654 .337506205 .53125 6280 136.00000 6355 .46875 6430 .93750 6505 .40625 6580 .87500 6655 .343756206 .53750 6281 .00625 6356 .47500 6431 .94375 6506 .41250 6581 .88125 6656 .350006207 .54375 6282 .01250 6357 .48125 6432 .95000 6507 .41875 6582 .88750 6657 .356256208 .55000 6283 .01875 6358 .48750 6433 .95625 6508 .42500 6583 .89375 6658 .362506209 .55625 6284 .02500 6359 .49375 6434 .96250 6509 .43125 6584 .90000 6659 .368756210 .56250 6285 .03125 6360 136.50000 6435 .96875 6510 .43750 6585 .90625 6660 .375006211 .568756286 .03750 6361 .50625 6436 .97500 6511 .44375 6586 .91250 6661 .381256212 .57500 6287 .04375 6362 .51250 6437 .98125 6512 .45000 6587 .91875 6662 .387506213 .58125 6288 .05000 6363 .51875 6438 .98750 6513 .45625 6588 .92500 6663 .393756214 .58750 6289 .05625 6364 .52500 6439 .99375 6514 .46250 6589 .93125 6664 .400006215 .59375 6290 .06250 6365 .53125 6440 137.00000 6515 .46875 6590 .93750 6665 .406256216 .60000 6291 .06875 6366 .53750 6441 .00625 6516 .47500 6591 .94375 6666 .412506217 .60625 6292.07500 6367 .54375 6442 .01250 6517 .48125 6592 .95000 6667 .418756218 .61250 6293 .08125 6368 .55000 6443 .01875 6518 .48750 6593 .95625 6668 .425006219 .61875 6294 .08750 6369 .55625 6444 .02500 6519 .49375 6594 .96250 6669 .431256220 .62500 6295 .093756370 .56250 6445 .03125 6520 137.50000 6595 .96875 6670 .437506221 .63125 6296 .10000 6371 .56875 6446 .03750 6521 .50625 6596 .97500 6671 .443756222 .63750 6297 .10625 6372 .57500 6447 .04375 6522 .51250 6597 .98125 6672 .450006223 .64375 6298 .11250 6373 .58125 6448 .05000 6523 .51875 6598 .98750 6673 .456256224 .65000 6299 .11875 6374 .58750 6449 .05625 6524 .52500 6599 .99375 6674 .462506225 .65625 6300 .12500 6375 .59375 6450 .06250 6525 .53125 6600 138.00000 6675 .468756226 .66250 6301 .13125 6376 .60000 6451 .06875 6526 .53750 6601 .00625 6676 .475006227 .66875 6302 .13750 6377 .60625 6452 .07500 6527 .54375 6602 .01250 6677 .481256228 .67500 6303 .14375 6378 .61250 6453 .08125 6528 .55000 6603 .01875 6678 .487506229 .68125 6304 .15000 6379 .61875 6454 .08750 6529 .55625 6604 .02500 6679 .493756230 .68750 6305 .15625 6380 .62500 6455 .09375 6530 .56250 6605 .03125 6680 138.500006231 .69375 6306 .16250 6381 .63125 6456 .10000 6531 .56875 6606 .03750 6681 .506256232 .70000 6307 .16875 6382 .63750 6457 .10625 6532 .57500 6607 .04375 6682 .512506233 .70625 6308 .17500 6383 .64375 6458 .11250 6533 .58125 6608 .05000 6683 .518756234 .71250 6309 .18125 6384 .65000 6459 .11875 6534 .58750 6609 .05625 6684 .525006235 .71875 6310 .18750 6385 .656256460 .12500 6535 .59375 6610 .06250 6685 .531256236 .72500 6311 .19375 6386 .66250 6461 .13125 6536 .60000 6611 .06875 6686 .537506237 .73125 6312 .20000 6387 .66875 6462 .13750 6537 .60625 6612 .07500 6687 .543756238 .73750 6313 .20625 6388 .675006463 .14375 6538 .61250 6613 .08125 6688 .550006239 .74375 6314 .21250 6389 .68125 6464 .15000 6539 .61875 6614 .08750 6689 .55625
VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHz2-3VT-3/140 Channel Designation Table: 132 to 150 MHz, 6.25 kHz Increments (continued)Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)6690 138.56250 6765 139.03125 6840 139.50000 6915 139.96875 6990 140.43750 7065 140.90625 7140 141.375006691 .56875 6766 .037506841 .50625 6916 .97500 6991 .44375 7066 .91250 7141 .381256692 .57500 6767 .04375 6842 .51250 6917 .98125 6992 .45000 7067 .91875 7142 .387506693 .58125 6768 .05000 6843 .51875 6918 .98750 6993 .45625 7068 .92500 7143 .393756694 .58750 6769 .05625 6844 .52500 6919 .99375 6994 .46250 7069 .93125 7144 .400006695 .59375 6770 .06250 6845 .53125 6920 140.00000 6995 .46875 7070 .93750 7145 .406256696 .60000 6771 .06875 6846 .53750 6921 .00625 6996 .47500 7071 .94375 7146 .412506697 .60625 6772 .07500 6847.54375 6922 .01250 6997 .48125 7072 .95000 7147 .418756698 .61250 6773 .08125 6848 .55000 6923 .01875 6998 .48750 7073 .95625 7148 .425006699 .61875 6774 .08750 6849 .55625 6924 .02500 6999 .49375 7074 .96250 7149 .431256700 .62500 6775 .09375 6850 .562506925 .03125 7000 140.50000 7075 .96875 7150 .437506701 .63125 6776 .10000 6851 .56875 6926 .03750 7001 .50625 7076 .97500 7151 .443756702 .63750 6777 .10625 6852 .57500 6927 .04375 7002 .51250 7077 .98125 7152 .450006703 .64375 6778 .11250 6853 .58125 6928 .05000 7003 .51875 7078 .98750 7153 .456256704 .65000 6779 .11875 6854 .58750 6929 .05625 7004 .52500 7079 .99375 7154 .462506705 .65625 6780 .12500 6855 .59375 6930 .06250 7005 .53125 7080 141.00000 7155 .468756706 .66250 6781 .13125 6856 .60000 6931 .06875 7006 .53750 7081 .00625 7156 .475006707 .66875 6782 .13750 6857 .60625 6932 .07500 7007 .54375 7082 .01250 7157 .481256708 .67500 6783 .14375 6858 .61250 6933 .08125 7008 .55000 7083 .01875 7158 .487506709 .68125 6784 .15000 6859 .61875 6934 .08750 7009 .55625 7084 .02500 7159 .493756710 .68750 6785 .15625 6860 .62500 6935 .09375 7010 .56250 7085 .03125 7160 141.500006711 .69375 6786 .16250 6861 .63125 6936 .10000 7011 .56875 7086 .03750 7161 .506256712 .70000 6787 .16875 6862 .63750 6937 .10625 7012 .57500 7087 .04375 7162 .512506713 .70625 6788 .17500 6863 .64375 6938 .11250 7013 .58125 7088 .05000 7163 .518756714 .71250 6789 .18125 6864 .65000 6939 .11875 7014 .58750 7089 .05625 7164 .525006715 .71875 6790 .18750 6865 .65625 6940 .125007015 .59375 7090 .06250 7165 .531256716 .72500 6791 .19375 6866 .66250 6941 .13125 7016 .60000 7091 .06875 7166 .537506717 .73125 6792 .20000 6867 .66875 6942 .13750 7017 .60625 7092 .07500 7167 .543756718 .73750 6793 .20625 6868 .67500 6943 .143757018 .61250 7093 .08125 7168 .550006719 .74375 6794 .21250 6869 .68125 6944 .15000 7019 .61875 7094 .08750 7169 .556256720 138.75000 6795 .21875 6870 .68750 6945 .15625 7020 .62500 7095 .09375 7170 .562506721 .75625 6796 .22500 6871 .69375 6946 .162507021.63125 7096 .10000 7171 .568756722 .76250 6797 .23125 6872 .70000 6947 .16875 7022 .63750 7097 .10625 7172 .575006723 .76875 6798 .23750 6873 .70625 6948 .17500 7023 .64375 7098 .11250 7173 .581256724 .77500 6799 .24375 6874 .71250 6949 .18125 7024.65000 7099 .11875 7174 .587506725 .78125 6800 139.25000 6875 .71875 6950 .18750 7025 .65625 7100 .12500 7175 .593756726 .78750 6801 .25625 6876 .72500 6951 .19375 7026 .66250 7101 .13125 7176 .600006727 .79375 6802 .26250 6877 .73125 6952 .20000 7027.66875 7102 .13750 7177 .606256728 .80000 6803 .26875 6878 .73750 6953 .20625 7028 .67500 7103 .14375 7178 .612506729 .80625 6804 .27500 6879 .74375 6954 .21250 7029 .68125 7104 .15000 7179 .618756730 .81250 6805 .28125 6880 139.75000 6955 .21875 7030 .68750 7105 .15625 7180 .625006731 .81875 6806 .28750 6881 .75625 6956 .22500 7031 .69375 7106 .16250 7181 .631256732 .82500 6807 .29375 6882 .76250 6957 .23125 7032 .70000 7107 .16875 7182 .637506733 .83125 6808 .30000 6883 .76875 6958 .23750 7033 .70625 7108 .17500 7183 .643756734 .83750 6809 .30625 6884 .77500 6959 .24375 7034 .71250 7109 .18125 7184 .650006735 .84375 6810 .31250 6885 .78125 6960 140.25000 7035 .71875 7110 .18750 7185 .656256736 .85000 6811 .31875 6886 .78750 6961 .25625 7036 .725007111 .19375 7186 .662506737 .85625 6812 .32500 6887 .79375 6962 .26250 7037 .73125 7112 .20000 7187 .668756738 .86250 6813 .33125 6888 .80000 6963 .26875 7038 .73750 7113 .20625 7188 .675006739 .86875 6814 .33750 6889 .80625 6964 .27500 7039 .74375 7114 .21250 7189 .681256740 .87500 6815 .34375 6890 .81250 6965 .28125 7040 140.75000 7115 .21875 7190 .687506741 .88125 6816 .35000 6891 .81875 6966 .28750 7041 .75625 7116 .22500 7191 .693756742 .88750 6817 .35625 6892 .82500 6967 .29375 7042 .76250 7117.23125 7192 .700006743 .89375 6818 .36250 6893 .83125 6968 .30000 7043 .76875 7118 .23750 7193 .706256744 .90000 6819 .36875 6894 .83750 6969 .30625 7044 .77500 7119 .24375 7194 .712506745 .90625 6820 .37500 6895 .84375 6970 .31250 7045 .78125 7120 141.25000 7195 .718756746 .91250 6821 .38125 6896 .85000 6971 .31875 7046 .78750 7121 .25625 7196 .725006747 .91875 6822 .38750 6897 .85625 6972 .32500 7047 .79375 7122 .26250 7197 .731256748 .92500 6823 .39375 6898 .86250 6973 .33125 7048 .80000 7123 .26875 7198 .737506749 .93125 6824 .40000 6899 .86875 6974 .33750 7049 .80625 7124 .27500 7199 .743756750 .93750 6825 .40625 6900 .87500 6975 .34375 7050 .81250 7125 .28125 7200 141.750006751 .94375 6826 .41250 6901 .88125 6976 .35000 7051 .81875 7126 .28750 7201 .756256752 .95000 6827 .41875 6902 .88750 6977 .35625 7052 .82500 7127 .29375 7202 .762506753 .95625 6828 .42500 6903 .89375 6978 .36250 7053 .83125 7128 .30000 7203 .768756754 .96250 6829 .43125 6904 .90000 6979 .36875 7054 .83750 7129 .30625 7204 .775006755 .96875 6830 .43750 6905 .90625 6980 .37500 7055 .84375 7130 .31250 7205 .781256756 .97500 6831 .44375 6906 .91250 6981 .38125 7056 .85000 7131 .31875 7206 .787506757 .98125 6832 .45000 6907 .91875 6982 .38750 7057 .85625 7132 .32500 7207 .793756758 .98750 6833 .45625 6908 .92500 6983 .39375 7058 .86250 7133 .33125 7208 .800006759 .99375 6834 .46250 6909 .93125 6984 .40000 7059 .86875 7134 .33750 7209 .806256760 139.00000 6835 .46875 6910 .93750 6985 .40625 7060 .87500 7135 .34375 7210 .812506761 .00625 6836 .47500 6911 .94375 6986 .41250 7061 .88125 7136 .35000 7211 .818756762 .01250 6837 .48125 6912 .95000 6987 .41875 7062 .88750 7137 .35625 7212 .825006763 .01875 6838 .48750 6913 .95625 6988 .42500 7063 .89375 7138 .36250 7213 .831256764 .02500 6839 .49375 6914 .96250 6989 .43125 7064 .90000 7139 .36875 7214 .83750
2-4VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHzVT-3/140 Channel Designation Table: 132 to 150 MHz, 6.25 kHz Increments (continued)Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)7215 141.84375 7290 142.31250 7365 142.78125 7440 143.25000 7515 143.71875 7590 144.18750 7665 144.656257216 .85000 7291 .31875 7366 .78750 7441 .25625 7516 .72500 7591 .193757666 .662507217 .85625 7292 .32500 7367 .79375 7442 .26250 7517 .73125 7592 .20000 7667 .668757218 .86250 7293 .33125 7368 .80000 7443 .26875 7518 .73750 7593 .20625 7668 .675007219 .86875 7294 .33750 7369 .80625 7444 .27500 7519 .74375 7594 .21250 7669 .681257220 .87500 7295 .34375 7370 .81250 7445 .28125 7520 143.75000 7595 .21875 7670 .687507221 .88125 7296 .35000 7371 .81875 7446 .28750 7521 .75625 7596 .22500 7671 .693757222 .88750 7297 .35625 7372 .82500 7447 .29375 7522 .76250 7597 .23125 7672.700007223 .89375 7298 .36250 7373 .83125 7448 .30000 7523 .76875 7598 .23750 7673 .706257224 .90000 7299 .36875 7374 .83750 7449 .30625 7524 .77500 7599 .24375 7674 .712507225 .90625 7300 .37500 7375 .84375 7450 .31250 7525 .78125 7600 144.25000 7675.718757226 .91250 7301 .38125 7376 .85000 7451 .31875 7526 .78750 7601 .25625 7676 .725007227 .91875 7302 .38750 7377 .85625 7452 .32500 7527 .79375 7602 .26250 7677 .731257228 .92500 7303 .39375 7378 .86250 7453 .33125 7528 .80000 7603 .26875 7678 .737507229 .93125 7304 .40000 7379 .86875 7454 .33750 7529 .80625 7604 .27500 7679 .743757230 .93750 7305 .40625 7380 .87500 7455 .34375 7530 .81250 7605 .28125 7680 144.750007231 .94375 7306 .41250 7381 .88125 7456 .35000 7531 .81875 7606 .28750 7681 .756257232 .95000 7307 .41875 7382 .88750 7457 .35625 7532 .82500 7607 .29375 7682 .762507233 .95625 7308 .42500 7383 .89375 7458 .36250 7533 .83125 7608 .30000 7683 .768757234 .96250 7309 .43125 7384 .90000 7459 .36875 7534 .83750 7609 .30625 7684 .775007235 .96875 7310 .43750 7385 .90625 7460 .37500 7535 .84375 7610 .31250 7685 .781257236 .97500 7311 .44375 7386 .91250 7461 .38125 7536 .85000 7611 .31875 7686 .787507237 .98125 7312 .45000 7387 .91875 7462 .38750 7537 .85625 7612 .32500 7687 .793757238 .98750 7313 .45625 7388 .92500 7463 .39375 7538 .86250 7613 .33125 7688 .800007239 .99375 7314 .46250 7389 .93125 7464 .40000 7539 .86875 7614 .33750 7689 .806257240 142.00000 7315 .46875 7390 .93750 7465 .40625 7540 .87500 7615 .34375 7690 .812507241 .006257316 .47500 7391 .94375 7466 .41250 7541 .88125 7616 .35000 7691 .818757242 .01250 7317 .48125 7392 .95000 7467 .41875 7542 .88750 7617 .35625 7692 .825007243 .01875 7318 .48750 7393 .95625 7468 .42500 7543 .89375 7618 .36250 7693 .831257244 .025007319 .49375 7394 .96250 7469 .43125 7544 .90000 7619 .36875 7694 .837507245 .03125 7320 142.50000 7395 .96875 7470 .43750 7545 .90625 7620 .37500 7695 .843757246 .03750 7321 .50625 7396 .97500 7471 .44375 7546 .91250 7621 .38125 7696 .850007247 .043757322.51250 7397 .98125 7472 .45000 7547 .91875 7622 .38750 7697 .856257248 .05000 7323 .51875 7398 .98750 7473 .45625 7548 .92500 7623 .39375 7698 .862507249 .05625 7324 .52500 7399 .99375 7474 .46250 7549 .93125 7624 .40000 7699 .868757250 .06250 7325.53125 7400 143.00000 7475 .46875 7550 .93750 7625 .40625 7700 .875007251 .06875 7326 .53750 7401 .00625 7476 .47500 7551 .94375 7626 .41250 7701 .881257252 .07500 7327 .54375 7402 .01250 7477 .48125 7552 .95000 7627 .41875 7702 .887507253 .08125 7328.55000 7403 .01875 7478 .48750 7553 .95625 7628 .42500 7703 .893757254 .08750 7329 .55625 7404 .02500 7479 .49375 7554 .96250 7629 .43125 7704 .900007255 .09375 7330 .56250 7405 .03125 7480 143.50000 7555 .96875 7630 .43750 7705 .906257256 .10000 7331 .56875 7406 .03750 7481 .50625 7556 .97500 7631 .44375 7706 .912507257 .10625 7332 .57500 7407 .04375 7482 .51250 7557 .98125 7632 .45000 7707 .918757258 .11250 7333 .58125 7408 .05000 7483 .51875 7558 .98750 7633 .45625 7708 .925007259 .11875 7334 .58750 7409 .05625 7484 .52500 7559 .99375 7634 .46250 7709 .931257260 .12500 7335 .59375 7410 .06250 7485 .53125 7560 144.00000 7635 .46875 7710 .937507261 .13125 7336 .60000 7411 .06875 7486 .53750 7561 .00625 7636 .47500 7711 .943757262 .13750 7337 .606257412 .07500 7487 .54375 7562 .01250 7637 .48125 7712 .950007263 .14375 7338 .61250 7413 .08125 7488 .55000 7563 .01875 7638 .48750 7713 .956257264 .15000 7339 .61875 7414 .08750 7489 .55625 7564 .02500 7639 .49375 7714 .962507265 .15625 7340 .62500 7415 .09375 7490 .56250 7565 .03125 7640 144.50000 7715 .968757266 .16250 7341 .63125 7416 .10000 7491 .56875 7566 .03750 7641 .50625 7716 .975007267 .16875 7342 .63750 7417 .10625 7492 .57500 7567 .04375 7642 .51250 7717 .981257268 .17500 7343 .64375 7418.11250 7493 .58125 7568 .05000 7643 .51875 7718 .987507269 .18125 7344 .65000 7419 .11875 7494 .58750 7569 .05625 7644 .52500 7719 .993757270 .18750 7345 .65625 7420 .12500 7495 .59375 7570 .06250 7645 .53125 7720 145.000007271 .19375 7346 .66250 7421.13125 7496 .60000 7571 .06875 7646 .53750 7721 .006257272 .20000 7347 .66875 7422 .13750 7497 .60625 7572 .07500 7647 .54375 7722 .012507273 .20625 7348 .67500 7423 .14375 7498 .61250 7573 .08125 7648 .55000 7723 .018757274 .21250 7349 .68125 7424 .15000 7499 .61875 7574 .08750 7649 .55625 7724 .025007275 .21875 7350 .68750 7425 .15625 7500 .62500 7575 .09375 7650 .56250 7725 .031257276 .22500 7351 .69375 7426 .16250 7501 .63125 7576 .10000 7651 .56875 7726 .037507277 .23125 7352 .70000 7427 .16875 7502.63750 7577 .10625 7652 .57500 7727 .043757278 .23750 7353 .70625 7428 .17500 7503 .64375 7578 .11250 7653 .58125 7728 .050007279 .24375 7354 .71250 7429 .18125 7504 .65000 7579 .11875 7654 .58750 7729 .056257280 142.25000 7355 .71875 7430 .18750 7505 .65625 7580 .12500 7655 .59375 7730 .062507281 .25625 7356 .72500 7431 .19375 7506 .66250 7581 .13125 7656 .60000 7731 .068757282 .26250 7357 .73125 7432 .20000 7507 .66875 7582 .13750 7657 .60625 7732 .075007283 .26875 7358 .73750 7433 .20625 7508 .67500 7583 .14375 7658 .61250 7733 .081257284 .27500 7359 .74375 7434 .21250 7509 .68125 7584 .15000 7659 .61875 7734 .087507285 .28125 7360 142.75000 7435 .21875 7510 .68750 7585 .15625 7660 .62500 7735 .093757286 .28750 7361 .75625 7436 .22500 7511 .693757586 .16250 7661 .63125 7736 .100007287 .29375 7362 .76250 7437 .23125 7512 .70000 7587 .16875 7662 .63750 7737 .106257288 .30000 7363 .76875 7438 .23750 7513 .70625 7588 .17500 7663 .64375 7738 .112507289 .30625 7364 .77500 7439 .24375 7514 .712507589 .18125 7664 .65000 7739 .11875
VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHz2-5VT-3/140 Channel Designation Table: 132 to 150 MHz, 6.25 kHz Increments (continued)Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)7740 145.12500 7815 145.59375 7890 146.06250 7965 146.53125 8040 147.00000 8115 147.46875 8190 147.937507741 .13125 7816 .60000 7891 .06875 7966 .53750 8041 .00625 8116 .47500 8191 .943757742 .13750 7817 .60625 7892 .075007967 .54375 8042 .01250 8117 .48125 8192 .950007743 .14375 7818 .61250 7893 .08125 7968 .55000 8043 .01875 8118 .48750 8193 .956257744 .15000 7819 .61875 7894 .08750 7969 .55625 8044 .02500 8119 .49375 8194 .962507745 .15625 7820 .62500 7895 .09375 7970 .56250 8045 .03125 8120 147.50000 8195 .968757746 .16250 7821 .63125 7896 .10000 7971 .56875 8046 .03750 8121 .50625 8196 .975007747 .16875 7822 .63750 7897 .10625 7972 .57500 8047 .04375 8122 .51250 8197 .981257748 .17500 7823 .64375 7898 .11250 7973.58125 8048 .05000 8123 .51875 8198 .987507749 .18125 7824 .65000 7899 .11875 7974 .58750 8049 .05625 8124 .52500 8199 .993757750 .18750 7825 .65625 7900 .12500 7975 .59375 8050 .06250 8125 .53125 8200 148.000007751 .19375 7826 .66250 7901 .13125 7976.60000 8051 .06875 8126 .53750 8201 .006257752 .20000 7827 .66875 7902 .13750 7977 .60625 8052 .07500 8127 .54375 8202 .012507753 .20625 7828 .67500 7903 .14375 7978 .61250 8053 .08125 8128 .55000 8203 .018757754 .21250 7829 .68125 7904 .15000 7979 .61875 8054 .08750 8129 .55625 8204 .025007755 .21875 7830 .68750 7905 .15625 7980 .62500 8055 .09375 8130 .56250 8205 .031257756 .22500 7831 .69375 7906 .16250 7981 .63125 8056 .10000 8131 .56875 8206 .037507757 .23125 7832 .70000 7907 .16875 7982 .63750 8057.10625 8132 .57500 8207 .043757758 .23750 7833 .70625 7908 .17500 7983 .64375 8058 .11250 8133 .58125 8208 .050007759 .24375 7834 .71250 7909 .18125 7984 .65000 8059 .11875 8134 .58750 8209 .056257760 145.25000 7835 .71875 7910 .18750 7985 .65625 8060 .12500 8135 .59375 8210 .062507761 .25625 7836 .72500 7911 .19375 7986 .66250 8061 .13125 8136 .60000 8211 .068757762 .26250 7837 .73125 7912 .20000 7987 .66875 8062 .13750 8137 .60625 8212 .075007763 .26875 7838 .73750 7913 .20625 7988 .67500 8063 .14375 8138 .61250 8213 .081257764 .27500 7839 .74375 7914 .21250 7989 .68125 8064 .15000 8139 .61875 8214 .087507765 .28125 7840 145.75000 7915 .21875 7990 .68750 8065 .15625 8140 .62500 8215 .093757766 .28750 7841 .75625 7916 .22500 7991 .69375 8066 .162508141 .63125 8216 .100007767 .29375 7842 .76250 7917 .23125 7992 .70000 8067 .16875 8142 .63750 8217 .106257768 .30000 7843 .76875 7918 .23750 7993 .70625 8068 .17500 8143 .64375 8218 .112507769 .30625 7844 .77500 7919 .24375 7994 .71250 8069 .181258144 .65000 8219 .118757770 .31250 7845 .78125 7920 146.25000 7995 .71875 8070 .18750 8145 .65625 8220 .125007771 .31875 7846 .78750 7921 .25625 7996 .72500 8071 .19375 8146 .66250 8221 .131257772 .32500 7847 .79375 7922 .26250 7997 .73125 8072 .200008147.66875 8222 .137507773 .33125 7848 .80000 7923 .26875 7998 .73750 8073 .20625 8148 .67500 8223 .143757774 .33750 7849 .80625 7924 .27500 7999 .74375 8074 .21250 8149 .68125 8224 .150007775 .34375 7850 .81250 7925 .28125 8000 146.75000 8075 .21875 8150.68750 8225 .156257776 .35000 7851 .81875 7926 .28750 8001 .75625 8076 .22500 8151 .69375 8226 .162507777 .35625 7852 .82500 7927 .29375 8002 .76250 8077 .23125 8152 .70000 8227 .168757778 .36250 7853 .83125 7928 .30000 8003 .76875 8078 .23750 8153.70625 8228 .175007779 .36875 7854 .83750 7929 .30625 8004 .77500 8079 .24375 8154 .71250 8229 .181257780 .37500 7855 .84375 7930 .31250 8005 .78125 8080 147.25000 8155 .71875 8230 .187507781 .38125 7856 .85000 7931 .31875 8006 .78750 8081 .25625 8156 .72500 8231 .193757782 .38750 7857 .85625 7932 .32500 8007 .79375 8082 .26250 8157 .73125 8232 .200007783 .39375 7858 .86250 7933 .33125 8008 .80000 8083 .26875 8158 .73750 8233 .206257784 .40000 7859 .86875 7934 .33750 8009 .80625 8084 .27500 8159 .74375 8234 .212507785 .40625 7860 .87500 7935 .34375 8010 .81250 8085 .28125 8160 147.75000 8235 .218757786 .41250 7861 .88125 7936 .35000 8011 .81875 8086 .28750 8161 .75625 8236 .225007787 .41875 7862 .88750 7937 .35625 8012 .82500 8087 .29375 8162 .762508237 .231257788 .42500 7863 .89375 7938 .36250 8013 .83125 8088 .30000 8163 .76875 8238 .237507789 .43125 7864 .90000 7939 .36875 8014 .83750 8089 .30625 8164 .77500 8239 .243757790 .43750 7865 .90625 7940 .37500 8015 .84375 8090 .31250 8165 .78125 8240 148.250007791 .44375 7866 .91250 7941 .38125 8016 .85000 8091 .31875 8166 .78750 8241 .256257792 .45000 7867 .91875 7942 .38750 8017 .85625 8092 .32500 8167 .79375 8242 .262507793 .45625 7868 .92500 7943 .39375 8018 .86250 8093 .33125 8168 .80000 8243.268757794 .46250 7869 .93125 7944 .40000 8019 .86875 8094 .33750 8169 .80625 8244 .275007795 .46875 7870 .93750 7945 .40625 8020 .87500 8095 .34375 8170 .81250 8245 .281257796 .47500 7871 .94375 7946 .41250 8021 .88125 8096 .35000 8171 .81875 8246 .287507797 .48125 7872 .95000 7947 .41875 8022 .88750 8097 .35625 8172 .82500 8247 .293757798 .48750 7873 .95625 7948 .42500 8023 .89375 8098 .36250 8173 .83125 8248 .300007799 .49375 7874 .96250 7949 .43125 8024 .90000 8099 .36875 8174 .83750 8249 .306257800 145.50000 7875 .96875 7950 .43750 8025 .90625 8100 .37500 8175 .84375 8250 .312507801 .50625 7876 .97500 7951 .44375 8026 .91250 8101 .38125 8176 .85000 8251 .318757802 .51250 7877 .98125 7952 .45000 8027 .91875 8102 .38750 8177 .85625 8252 .325007803 .51875 7878 .98750 7953 .45625 8028 .92500 8103 .39375 8178 .86250 8253 .331257804 .52500 7879 .99375 7954 .46250 8029 .93125 8104 .40000 8179 .86875 8254 .337507805 .53125 7880 146.00000 7955 .46875 8030 .93750 8105 .40625 8180 .87500 8255 .343757806 .53750 7881 .00625 7956 .47500 8031 .94375 8106 .41250 8181 .88125 8256 .350007807 .54375 7882 .01250 7957 .48125 8032 .95000 8107 .41875 8182 .88750 8257 .356257808 .55000 7883 .01875 7958 .48750 8033 .95625 8108 .42500 8183 .89375 8258 .362507809 .55625 7884 .02500 7959 .49375 8034 .96250 8109 .43125 8184 .90000 8259 .368757810 .56250 7885 .03125 7960 146.50000 8035 .96875 8110 .43750 8185 .90625 8260 .375007811 .56875 7886 .03750 7961 .50625 8036 .97500 8111 .44375 8186 .91250 8261 .381257812 .575007887 .04375 7962 .51250 8037 .98125 8112 .45000 8187 .91875 8262 .387507813 .58125 7888 .05000 7963 .51875 8038 .98750 8113 .45625 8188 .92500 8263 .393757814 .58750 7889 .05625 7964 .52500 8039 .99375 8114 .46250 8189 .93125 8264 .40000
2-6VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHzVT-3/140 Channel Designation Table: 132 to 150 MHz, 6.25 kHz Increments (continued)Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)8265 148.40625 8340148.87500 8415 149.34375 8490 149.812508266 .41250 8341 .88125 8416 .35000 8491 .818758267 .41875 8342 .88750 8417 .35625 8492 .825008268 .42500 8343 .89375 8418 .36250 8493 .831258269 .43125 8344 .90000 8419 .36875 8494 .837508270 .43750 8345 .906258420 .37500 8495 .843758271 .44375 8346 .91250 8421 .38125 8496 .850008272 .45000 8347 .91875 8422 .38750 8497 .856258273 .45625 8348 .92500 8423 .39375 8498 .862508274 .46250 8349 .93125 8424 .40000 8499 .868758275 .46875 8350 .93750 8425 .406258500.875008276 .47500 8351 .94375 8426 .41250 8501 .881258277 .48125 8352 .95000 8427 .41875 8502 .887508278 .48750 8353 .95625 8428 .42500 8503 .893758279 .49375 8354 .96250 8429 .43125 8504 .900008280 148.50000 8355 .96875 8430 .43750 8505 .906258281 .50625 8356 .97500 8431 .44375 8506 .912508282 .51250 8357 .98125 8432 .45000 8507 .918758283 .51875 8358 .98750 8433 .45625 8508 .925008284 .52500 8359 .99375 8434 .46250 8509 .931258285 .53125 8360 149.00000 8435 .46875 8510 .937508286 .53750 8361 .00625 8436 .47500 8511 .943758287 .54375 8362 .01250 8437 .48125 8512 .950008288 .55000 8363 .01875 8438 .48750 8513 .956258289 .55625 8364 .02500 8439 .49375 8514 .962508290 .56250 8365 .03125 8440 149.50000 8515 .968758291 .56875 8366 .03750 8441 .50625 8516 .975008292 .57500 8367 .04375 8442 .51250 8517 .981258293 .58125 8368 .05000 8443 .51875 8518 .987508294 .58750 8369 .05625 8444 .52500 8519 .993758295 .59375 8370 .06250 8445 .53125 8520 150.000008296 .60000 8371 .06875 8446 .537508297.60625 8372 .07500 8447 .543758298 .61250 8373 .08125 8448 .550008299 .61875 8374 .08750 8449 .556258300 .62500 8375 .09375 8450 .562508301 .63125 8376 .10000 8451 .568758302 .63750 8377 .10625 8452 .575008303 .64375 8378 .11250 8453 .581258304 .650008379 .11875 8454 .587508305 .65625 8380 .12500 8455 .593758306 .66250 8381 .13125 8456 .600008307 .66875 8382 .13750 8457 .606258308 .67500 8383 .14375 8458 .612508309 .68125 8384 .15000 8459 .618758310 .68750 8385 .15625 8460 .625008311 .693758386.16250 8461 .631258312 .70000 8387 .16875 8462 .637508313 .70625 8388 .17500 8463 .643758314 .71250 8389 .18125 8464 .650008315 .71875 8390 .18750 8465 .656258316 .72500 8391 .19375 8466 .662508317 .73125 8392 .20000 8467 .668758318 .73750 8393.20625 8468 .675008319 .74375 8394 .21250 8469 .681258320 148.75000 8395 .21875 8470 .687508321 .75625 8396 .22500 8471 .693758322 .76250 8397 .23125 8472 .700008323 .76875 8398 .23750 8473 .706258324 .77500 8399 .24375 8474 .712508325 .78125 8400149.25000 8475 .718758326 .78750 8401 .25625 8476 .725008327 .79375 8402 .26250 8477 .731258328 .80000 8403 .26875 8478 .737508329 .80625 8404 .27500 8479 .743758330 .81250 8405 .28125 8480 149.750008331 .81875 8406 .28750 8481 .756258332 .82500 8407 .29375 8482 .762508333 .83125 8408 .30000 8483 .768758334 .83750 8409 .30625 8484 .775008335 .84375 8410 .31250 8485 .781258336 .85000 8411 .31875 8486 .787508337 .85625 8412 .32500 8487 .793758338 .86250 8413 .33125 8488 .800008339 .86875 8414 .337508489 .80625
VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHz3-13 VT-3/160 Channel Designation Table: 150-174MHz, 5kHz IncrementsChan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz) 000 150.00000 075 150.37500 150 150.75000 225 151.12500 300 151.50000 375 151.87500 450 152.25000 001 .00500 076 .38000 151 .75500 226 .13000 301 .50500 376 .88000 451 .25500 002 .01000 077 .38500 152 .76000 227 .13500 302 .51000 377 .88500 452 .26000 003.01500 078 .39000 153 .76500 228 .14000 303 .51500 378 .89000 453 .26500 004 .02000 079 .39500 154 .77000 229 .14500 304 .52000 379 .89500 454 .27000 005 .02500 080 .40000 155 .77500 230 .15000 305 .52500 380 .90000 455 .27500 006 .03000 081 .40500156.78000 231 .15500 306 .53000 381 .90500 456 .28000 007 .03500 082 .41000 157 .78500 232 .16000 307 .53500 382 .91000 457 .28500 008 .04000 083 .41500 158 .79000 233 .16500 308 .54000 383 .91500 458 .29000 009 .04500 084 .42000 159 .79500 234 .17000 309 .54500 384 .92000 459 .29500 010 .05000 085 .42500 160 .80000 235 .17500 310 .55000 385 .92500 460 .30000 011 .05500 086 .43000 161 .80500 236 .18000 311 .55500 386 .93000 461 .30500 012 .06000 087 .43500 162 .81000 237 .18500 312 .56000 387 .93500 462 .31000 013 .06500 088 .44000 163 .81500 238 .19000 313 .56500 388 .94000 463 .31500 014 .07000 089 .44500 164 .82000 239 .19500 314 .57000 389 .94500 464 .32000 015 .07500 090 .45000 165 .82500 240 .20000 315 .57500 390 .95000 465 .32500 016 .08000 091 .45500 166 .83000 241 .20500 316 .58000 391 .95500 466 .33000 017 .08500 092 .46000 167 .83500 242 .21000 317 .58500 392 .96000 467 .33500 018 .09000 093 .46500 168 .84000 243 .21500 318 .59000 393 .96500 468 .34000 019 .09500 094 .47000 169 .84500 244 .22000 319 .59500 394 .97000 469 .34500 020 .10000 095 .47500 170 .85000 245 .22500 320 .60000 395 .97500 470 .35000 021 .10500 096 .48000 171 .85500 246 .23000 321 .60500 396 .98000 471 .35500 022 .11000 097 .48500 172 .86000 247 .23500 322 .61000 397 .98500 472 .36000 023 .11500 098 .49000 173 .86500 248 .24000 323 .61500 398 .99000 473 .36500 024 .12000 099 .49500 174 .87000 249 .24500 324 .62000 399 .99500 474 .37000 025 .12500 100 150.50000 175 .87500 250 151.25000 325 .62500 400 152.00000 475 .37500 026 .13000 101 .50500 176 .88000 251 .25500 326 .63000 401 .00500 476 .38000 027 .13500 102 .51000 177 .88500 252 .26000 327 .63500 402 .01000 477 .38500 028 .14000 103 .51500 178 .89000 253 .26500 328 .64000 403 .01500 478 .39000 029 .14500 104 .52000 179 .89500 254 .27000 329 .64500 404 .02000 479 .39500 030 .15000 105 .52500 180 .90000 255 .27500 330 .65000 405 .02500 480 .40000 031 .15500 106 .53000 181 .90500 256 .28000 331 .65500 406 .03000 481 .40500 032 .16000 107.53500 182 .91000 257 .28500 332 .66000 407 .03500 482 .41000 033 .16500 108 .54000 183 .91500 258 .29000 333 .66500 408 .04000 483 .41500 034 .17000 109 .54500 184 .92000 259 .29500 334 .67000 409 .04500 484 .42000 035 .17500 110 .55000 185 .92500 260.30000 335 .67500 410 .05000 485 .42500 036 .18000 111 .55500 186 .93000 261 .30500 336 .68000 411 .05500 486 .43000 037 .18500 112 .56000 187 .93500 262 .31000 337 .68500 412 .06000 487 .43500 038 .19000 113 .56500 188 .94000 263 .31500 338 .69000 413.06500 488 .44000 039 .19500 114 .57000 189 .94500 264 .32000 339 .69500 414 .07000 489 .44500 040 .20000 115 .57500 190 .95000 265 .32500 340 .70000 415 .07500 490 .45000 041 .20500 116 .58000 191 .95500 266 .33000 341 .70500 416 .08000 491 .45500 042.21000 117 .58500 192 .96000 267 .33500 342 .71000 417 .08500 492 .46000 043 .21500 118 .59000 193 .96500 268 .34000 343 .71500 418 .09000 493 .46500 044 .22000 119 .59500 194 .97000 269 .34500 344 .72000 419 .09500 494 .47000 045 .22500 120 .60000 195.97500 270 .35000 345 .72500 420 .10000 495 .47500 046 .23000 121 .60500 196 .98000 271 .35500 346 .73000 421 .10500 496 .48000 047 .23500 122 .61000 197 .98500 272 .36000 347 .73500 422 .11000 497 .48500 048 .24000 123 .61500 198 .99000 273 .36500 348.74000 423 .11500 498 .49000 049 .24500 124 .62000 199 .99500 274 .37000 349 .74500 424 .12000 499 .49500 050 150.25000 125 .62500 200 151.00000 275 .37500 350 151.75000 425 .12500 500 152.50000 051 .25500 126 .63000 201 .00500 276 .38000 351 .75500 426 .13000 501 .50500 052 .26000 127 .63500 202 .01000 277 .38500 352 .76000 427 .13500 502 .51000 053 .26500 128 .64000 203 .01500 278 .39000 353 .76500 428 .14000 503 .51500 054 .27000 129 .64500 204 .02000 279 .39500 354 .77000 429 .14500 504 .52000 055 .27500 130 .65000 205 .02500 280 .40000 355 .77500 430 .15000 505 .52500 056 .28000 131 .65500 206 .03000 281 .40500 356 .78000 431 .15500 506 .53000 057 .28500 132 .66000 207 .03500 282 .41000 357 .78500 432 .16000 507 .53500 058 .29000 133 .66500 208 .04000 283 .41500 358 .79000 433 .16500 508 .54000 059 .29500 134 .67000 209 .04500 284 .42000 359 .79500 434 .17000 509 .54500 060 .30000 135 .67500 210 .05000 285 .42500 360 .80000 435 .17500 510 .55000 061 .30500 136 .68000 211 .05500 286 .43000 361 .80500 436 .18000 511 .55500 062 .31000 137 .68500 212 .06000 287 .43500 362 .81000 437 .18500 512 .56000 063 .31500 138 .69000 213 .06500 288 .44000 363 .81500 438 .19000 513 .56500 064 .32000 139 .69500 214 .07000 289 .44500 364 .82000 439 .19500 514 .57000 065 .32500 140 .70000 215 .07500 290 .45000 365 .82500 440 .20000 515 .57500 066 .33000 141 .70500 216 .08000 291 .45500 366 .83000 441 .20500 516 .58000 067 .33500 142 .71000 217 .08500 292 .46000 367 .83500 442 .21000 517 .58500 068 .34000143.71500 218 .09000 293 .46500 368 .84000 443 .21500 518 .59000 069 .34500 144 .72000 219 .09500 294 .47000 369 .84500 444 .22000 519 .59500 070 .35000 145 .72500 220 .10000 295 .47500 370 .85000 445 .22500 520 .60000 071 .35500 146 .73000 221 .10500296.48000 371 .85500 446 .23000 521 .60500 072 .36000 147 .73500 222 .11000 297 .48500 372 .86000 447 .23500 522 .61000 073 .36500 148 .74000 223 .11500 298 .49000 373 .86500 448 .24000 523 .61500 074 .37000 149 .74500 224 .12000 299 .49500 374 .87000449.24500 524 .62000
3-2VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHzVT-3/160 Channel Designation Table: 150 to 174 MHz, 5 kHz Increments (continued)Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)525 152.62500 600 153.00000 675 153.37500 750 153.75000 825 154.12500 900 154.50000 975 154.87500526 .63000 601 .00500 676 .38000 751 .75500 826 .13000 901 .50500 976 .88000527 .63500 602 .01000 677 .38500 752 .76000 827 .13500 902 .51000 977 .88500528 .64000 603 .01500 678 .39000 753 .76500 828 .14000 903 .51500 978 .89000529 .64500 604 .02000 679 .39500 754 .77000 829 .14500 904 .52000 979 .89500530 .65000 605 .02500 680 .40000 755 .77500 830 .15000 905 .52500 980 .90000531 .65500 606.03000 681 .40500 756 .78000 831 .15500 906 .53000 981 .90500532 .66000 607 .03500 682 .41000 757 .78500 832 .16000 907 .53500 982 .91000533 .66500 608 .04000 683 .41500 758 .79000 833 .16500 908 .54000 983 .91500534 .67000 609 .04500 684 .42000 759 .79500834 .17000 909 .54500 984 .92000535 .67500 610 .05000 685 .42500 760 .80000 835 .17500 910 .55000 985 .92500536 .68000 611 .05500 686 .43000 761 .80500 836 .18000 911 .55500 986 .93000537 .68500 612 .06000 687 .43500 762 .81000 837 .18500 912 .56000987.93500538 .69000 613 .06500 688 .44000 763 .81500 838 .19000 913 .56500 988 .94000539 .69500 614 .07000 689 .44500 764 .82000 839 .19500 914 .57000 989 .94500540 .70000 615 .07500 690 .45000 765 .82500 840 .20000 915 .57500 990 .95000541 .70500 616 .08000 691 .45500 766 .83000 841 .20500 916 .58000 991 .95500542 .71000 617 .08500 692 .46000 767 .83500 842 .21000 917 .58500 992 .96000543 .71500 618 .09000 693 .46500 768 .84000 843 .21500 918 .59000 993 .96500544 .72000 619 .09500 694 .47000 769 .84500 844 .22000 919 .59500 994 .97000545 .72500 620 .10000 695 .47500 770 .85000 845 .22500 920 .60000 995 .97500546 .73000 621 .10500 696 .48000 771 .85500 846 .23000 921 .60500 996 .98000547 .73500 622 .11000 697 .48500 772 .86000 847 .23500 922 .61000 997 .98500548 .74000 623 .11500 698 .49000 773 .86500 848 .24000 923 .61500 998 .99000549 .74500 624 .12000 699 .49500 774 .87000 849 .24500 924 .62000 999 .99500550 152.75000 625 .12500 700 153.50000 775 .87500 850 154.25000 925 .62500 1000 155.00000551 .75500 626 .13000 701 .50500 776 .88000 851 .25500 926 .63000 1001 .00500552 .76000 627 .13500 702 .51000 777 .88500 852 .26000 927 .63500 1002 .01000553 .76500 628 .14000 703 .51500 778 .89000 853 .26500 928 .64000 1003 .01500554 .77000 629 .14500 704 .52000 779 .89500 854 .27000 929 .64500 1004 .02000555 .77500 630 .15000 705 .52500 780 .90000 855 .27500 930 .65000 1005 .02500556 .78000 631 .15500 706 .53000 781 .90500 856 .28000 931 .65500 1006 .03000557 .78500 632 .16000 707 .53500 782 .91000 857 .28500 932 .66000 1007 .03500558 .79000 633 .16500 708 .54000 783 .91500 858 .29000 933 .66500 1008 .04000559 .79500 634 .17000 709 .54500 784 .92000 859 .29500 934 .67000 1009 .04500560 .80000 635 .17500 710 .55000 785 .92500 860 .30000 935 .67500 1010 .05000561 .80500 636 .18000 711 .55500 786 .93000 861 .30500 936 .68000 1011 .05500562 .81000 637 .18500 712 .56000 787 .93500 862 .31000 937 .68500 1012 .06000563 .81500 638 .19000 713 .56500 788 .94000 863 .31500 938 .69000 1013 .06500564 .82000 639 .19500 714 .57000 789 .94500 864 .32000 939 .69500 1014 .07000565 .82500 640 .20000 715 .57500 790 .95000 865 .32500 940 .70000 1015 .07500566 .83000 641 .20500 716 .58000 791 .95500 866 .33000 941 .70500 1016 .08000567 .83500 642 .21000 717 .58500 792 .96000 867 .33500 942 .71000 1017 .08500568 .84000 643 .21500 718 .59000 793 .96500 868 .34000 943 .71500 1018 .09000569 .84500 644 .22000 719 .59500 794 .97000 869 .34500 944 .72000 1019 .09500570 .85000 645 .22500 720 .60000 795 .97500 870 .35000 945 .72500 1020 .10000571 .85500 646 .23000 721 .60500 796 .98000 871 .35500 946 .73000 1021 .10500572 .86000 647 .23500 722 .61000 797 .98500 872 .36000 947 .73500 1022 .11000573 .86500 648 .24000 723 .61500 798 .99000 873 .36500 948 .74000 1023 .11500574 .87000 649 .24500 724 .62000 799 .99500 874 .37000 949 .74500 1024 .12000575 .87500 650 153.25000 725 .62500 800 154.00000 875 .37500 950 154.75000 1025 .12500576 .88000 651 .25500 726 .63000 801 .00500 876 .38000 951 .75500 1026 .13000577 .88500 652 .26000 727 .63500 802 .01000 877 .38500 952 .76000 1027 .13500578 .89000 653 .26500 728 .64000 803 .01500 878 .39000 953 .76500 1028 .14000579 .89500 654 .27000 729 .64500 804 .02000 879 .39500 954 .77000 1029 .14500580 .90000 655 .27500 730 .65000 805 .02500 880 .40000 955 .77500 1030 .15000581 .90500 656 .28000 731 .65500 806 .03000 881 .40500 956 .78000 1031 .15500582 .91000 657 .28500 732 .66000 807 .03500 882 .41000 957 .78500 1032 .16000583 .91500 658 .29000 733 .66500 808 .04000 883 .41500 958 .79000 1033 .16500584 .92000 659 .29500 734 .67000 809 .04500 884 .42000 959 .79500 1034 .17000585 .92500 660 .30000 735 .67500 810 .05000 885 .42500 960 .80000 1035 .17500586 .93000 661 .30500 736 .68000 811 .05500 886 .43000 961 .80500 1036 .18000587 .93500 662 .31000 737 .68500 812 .06000 887 .43500 962 .81000 1037 .18500588 .94000 663 .31500 738 .69000 813 .06500 888 .44000 963 .81500 1038 .19000589 .94500 664 .32000 739 .69500 814 .07000 889 .44500 964 .82000 1039 .19500590 .95000 665 .32500 740 .70000 815 .07500 890 .45000 965 .82500 1040 .20000591 .95500 666 .33000 741 .70500 816 .08000 891 .45500 966 .83000 1041 .20500592 .96000 667 .33500 742 .71000 817 .08500 892 .46000 967 .83500 1042 .21000593 .96500 668 .34000 743 .71500 818 .09000 893 .46500 968 .84000 1043 .21500594 .97000 669 .34500 744 .72000 819 .09500 894 .47000 969 .84500 1044 .22000595 .97500 670 .35000 745 .72500 820 .10000 895 .47500 970 .85000 1045 .22500596 .98000 671 .35500 746 .73000 821 .10500 896 .48000 971 .85500 1046 .23000597 .98500 672 .36000 747 .73500 822 .11000 897 .48500 972 .86000 1047 .23500598 .99000 673 .36500 748 .74000 823 .11500 898 .49000 973 .86500 1048 .24000599 .99500 674 .37000 749 .74500 824 .12000 899 .49500 974 .87000 1049 .24500
VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHz3-3VT-3/160 Channel Designation Table: 150 to 174 MHz, 5 kHz Increments (continued)Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)1050 155.250001125155.62500 1200 156.00000 1275 156.37500 1350 156.75000 1425 157.12500 1500 157.500001051 .25500 1126 .63000 1201 .00500 1276 .38000 1351 .75500 1426 .13000 1501 .505001052 .26000 1127 .63500 1202 .01000 1277 .38500 1352 .76000 1427 .13500 1502 .510001053 .26500 1128 .64000 1203 .01500 1278 .39000 1353 .76500 1428 .14000 1503 .515001054 .27000 1129 .64500 1204 .02000 1279 .39500 1354 .77000 1429 .14500 1504 .520001055 .27500 1130 .65000 1205 .02500 1280 .40000 1355 .77500 1430 .15000 1505 .525001056 .28000 1131 .65500 1206 .03000 1281 .40500 1356 .78000 1431 .15500 1506 .530001057 .28500 1132 .66000 1207 .03500 1282 .41000 1357 .78500 1432 .16000 1507 .535001058 .29000 1133 .66500 1208 .04000 1283 .41500 1358 .79000 1433 .16500 1508 .540001059 .29500 1134 .67000 1209 .04500 1284 .42000 1359 .79500 1434 .17000 1509 .545001060 .30000 1135 .67500 1210 .05000 1285 .42500 1360 .80000 1435 .17500 1510 .550001061 .30500 1136 .68000 1211 .05500 1286 .43000 1361 .80500 1436 .18000 1511 .555001062 .31000 1137 .68500 1212 .06000 1287 .43500 1362 .81000 1437 .18500 1512 .560001063 .31500 1138 .69000 1213 .06500 1288 .44000 1363 .81500 1438 .19000 1513 .565001064 .32000 1139 .69500 1214 .07000 1289 .44500 1364 .82000 1439 .19500 1514 .570001065 .32500 1140 .70000 1215 .07500 1290 .45000 1365 .82500 1440 .20000 1515 .575001066 .33000 1141 .70500 1216 .08000 1291 .45500 1366 .83000 1441 .20500 1516 .580001067 .33500 1142 .71000 1217 .08500 1292 .46000 1367 .83500 1442 .21000 1517 .585001068 .34000 1143 .71500 1218 .09000 1293 .46500 1368 .84000 1443 .21500 1518 .590001069 .34500 1144 .72000 1219 .09500 1294 .47000 1369 .84500 1444 .22000 1519 .595001070 .35000 1145 .72500 1220 .10000 1295 .47500 1370 .85000 1445 .22500 1520 .600001071 .35500 1146 .73000 1221 .10500 1296 .48000 1371 .85500 1446 .23000 1521 .605001072 .36000 1147 .73500 1222 .11000 1297 .48500 1372 .86000 1447 .23500 1522 .610001073 .36500 1148 .74000 1223 .11500 1298 .49000 1373 .86500 1448 .24000 1523 .615001074 .37000 1149 .74500 1224 .12000 1299 .49500 1374 .87000 1449 .24500 1524 .620001075 .37500 1150 155.75000 1225 .12500 1300 156.50000 1375 .87500 1450 157.25000 1525 .625001076 .38000 1151 .75500 1226 .13000 1301 .50500 1376 .88000 1451 .25500 1526 .630001077 .38500 1152 .76000 1227 .13500 1302 .51000 1377 .88500 1452 .26000 1527 .635001078 .39000 1153 .76500 1228 .14000 1303 .51500 1378 .89000 1453 .26500 1528 .640001079 .39500 1154 .77000 1229 .14500 1304 .52000 1379 .89500 1454 .27000 1529 .645001080 .40000 1155 .77500 1230.15000 1305 .52500 1380 .90000 1455 .27500 1530 .650001081 .40500 1156 .78000 1231 .15500 1306 .53000 1381 .90500 1456 .28000 1531 .655001082 .41000 1157 .78500 1232 .16000 1307 .53500 1382 .91000 1457 .28500 1532 .660001083 .41500 1158 .79000 1233.16500 1308 .54000 1383 .91500 1458 .29000 1533 .665001084 .42000 1159 .79500 1234 .17000 1309 .54500 1384 .92000 1459 .29500 1534 .670001085 .42500 1160 .80000 1235 .17500 1310 .55000 1385 .92500 1460 .30000 1535 .675001086 .43000 1161 .80500 1236 .18000 1311 .55500 1386 .93000 1461 .30500 1536 .680001087 .43500 1162 .81000 1237 .18500 1312 .56000 1387 .93500 1462 .31000 1537 .685001088 .44000 1163 .81500 1238 .19000 1313 .56500 1388 .94000 1463 .31500 1538 .690001089 .44500 1164 .82000 1239 .19500 1314.57000 1389 .94500 1464 .32000 1539 .695001090 .45000 1165 .82500 1240 .20000 1315 .57500 1390 .95000 1465 .32500 1540 .700001091 .45500 1166 .83000 1241 .20500 1316 .58000 1391 .95500 1466 .33000 1541 .705001092 .46000 1167 .83500 1242 .21000 1317.58500 1392 .96000 1467 .33500 1542 .710001093 .46500 1168 .84000 1243 .21500 1318 .59000 1393 .96500 1468 .34000 1543 .715001094 .47000 1169 .84500 1244 .22000 1319 .59500 1394 .97000 1469 .34500 1544 .720001095 .47500 1170 .85000 1245 .22500 1320 .60000 1395 .97500 1470 .35000 1545 .725001096 .48000 1171 .85500 1246 .23000 1321 .60500 1396 .98000 1471 .35500 1546 .730001097 .48500 1172 .86000 1247 .23500 1322 .61000 1397 .98500 1472 .36000 1547 .735001098 .49000 1173 .86500 1248 .24000 1323 .61500 1398.99000 1473 .36500 1548 .740001099 .49500 1174 .87000 1249 .24500 1324 .62000 1399 .99500 1474 .37000 1549 .745001100 155.50000 1175 .87500 1250 156.25000 1325 .62500 1400 157.00000 1475 .37500 1550 157.750001101 .50500 1176 .88000 1251 .25500 1326.63000 1401 .00500 1476 .38000 1551 .755001102 .51000 1177 .88500 1252 .26000 1327 .63500 1402 .01000 1477 .38500 1552 .760001103 .51500 1178 .89000 1253 .26500 1328 .64000 1403 .01500 1478 .39000 1553 .765001104 .52000 1179 .89500 1254 .27000 1329 .64500 1404 .02000 1479 .39500 1554 .770001105 .52500 1180 .90000 1255 .27500 1330 .65000 1405 .02500 1480 .40000 1555 .775001106 .53000 1181 .90500 1256 .28000 1331 .65500 1406 .03000 1481 .40500 1556 .780001107 .53500 1182 .91000 1257 .28500 1332 .66000 1407.03500 1482 .41000 1557 .785001108 .54000 1183 .91500 1258 .29000 1333 .66500 1408 .04000 1483 .41500 1558 .790001109 .54500 1184 .92000 1259 .29500 1334 .67000 1409 .04500 1484 .42000 1559 .795001110 .55000 1185 .92500 1260 .30000 1335 .67500 1410.05000 1485 .42500 1560 .800001111 .55500 1186 .93000 1261 .30500 1336 .68000 1411 .05500 1486 .43000 1561 .805001112 .56000 1187 .93500 1262 .31000 1337 .68500 1412 .06000 1487 .43500 1562 .810001113 .56500 1188 .94000 1263 .31500 1338 .69000 1413 .06500 1488 .44000 1563 .815001114 .57000 1189 .94500 1264 .32000 1339 .69500 1414 .07000 1489 .44500 1564 .820001115 .57500 1190 .95000 1265 .32500 1340 .70000 1415 .07500 1490 .45000 1565 .825001116 .58000 1191 .95500 1266 .33000 1341 .70500 1416 .08000 1491.45500 1566 .830001117 .58500 1192 .96000 1267 .33500 1342 .71000 1417 .08500 1492 .46000 1567 .835001118 .59000 1193 .96500 1268 .34000 1343 .71500 1418 .09000 1493 .46500 1568 .840001119 .59500 1194 .97000 1269 .34500 1344 .72000 1419 .09500 1494.47000 1569 .845001120 .60000 1195 .97500 1270 .35000 1345 .72500 1420 .10000 1495 .47500 1570 .850001121 .60500 1196 .98000 1271 .35500 1346 .73000 1421 .10500 1496 .48000 1571 .855001122 .61000 1197 .98500 1272 .36000 1347 .73500 1422 .11000 1497 .48500 1572 .860001123 .61500 1198 .99000 1273 .36500 1348 .74000 1423 .11500 1498 .49000 1573 .865001124 .62000 1199 .99500 1274 .37000 1349 .74500 1424 .12000 1499 .49500 1574 .87000
3-4VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHzVT-3/160 Channel Designation Table: 150 to 174 MHz, 5 kHz Increments (continued)Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)1575 157.87500 1650 158.25000 1725 158.62500 1800 159.00000 1875 159.37500 1950 159.75000 2025 160.125001576 .88000 1651 .25500 1726 .63000 1801 .00500 1876 .38000 1951 .75500 2026 .130001577 .88500 1652 .26000 1727 .63500 1802 .01000 1877 .38500 1952 .76000 2027 .135001578 .89000 1653 .26500 1728 .64000 1803 .01500 1878 .39000 1953.76500 2028 .140001579 .89500 1654 .27000 1729 .64500 1804 .02000 1879 .39500 1954 .77000 2029 .145001580 .90000 1655 .27500 1730 .65000 1805 .02500 1880 .40000 1955 .77500 2030 .150001581 .90500 1656 .28000 1731 .65500 1806 .03000 1881 .40500 1956 .780002031 .155001582 .91000 1657 .28500 1732 .66000 1807 .03500 1882 .41000 1957 .78500 2032 .160001583 .91500 1658 .29000 1733 .66500 1808 .04000 1883 .41500 1958 .79000 2033 .165001584 .92000 1659 .29500 1734 .67000 1809 .04500 1884 .42000 1959 .795002034.170001585 .92500 1660 .30000 1735 .67500 1810 .05000 1885 .42500 1960 .80000 2035 .175001586 .93000 1661 .30500 1736 .68000 1811 .05500 1886 .43000 1961 .80500 2036 .180001587 .93500 1662 .31000 1737 .68500 1812 .06000 1887 .43500 1962 .81000 2037.185001588 .94000 1663 .31500 1738 .69000 1813 .06500 1888 .44000 1963 .81500 2038 .190001589 .94500 1664 .32000 1739 .69500 1814 .07000 1889 .44500 1964 .82000 2039 .195001590 .95000 1665 .32500 1740 .70000 1815 .07500 1890 .45000 1965 .82500 2040 .200001591 .95500 1666 .33000 1741 .70500 1816 .08000 1891 .45500 1966 .83000 2041 .205001592 .96000 1667 .33500 1742 .71000 1817 .08500 1892 .46000 1967 .83500 2042 .210001593 .96500 1668 .34000 1743 .71500 1818 .09000 1893 .46500 1968 .84000 2043 .215001594 .97000 1669 .34500 1744 .72000 1819 .09500 1894 .47000 1969 .84500 2044 .220001595 .97500 1670 .35000 1745 .72500 1820 .10000 1895 .47500 1970 .85000 2045 .225001596 .98000 1671 .35500 1746 .73000 1821 .10500 1896 .48000 1971 .85500 2046 .230001597.98500 1672 .36000 1747 .73500 1822 .11000 1897 .48500 1972 .86000 2047 .235001598 .99000 1673 .36500 1748 .74000 1823 .11500 1898 .49000 1973 .86500 2048 .240001599 .99500 1674 .37000 1749 .74500 1824 .12000 1899 .49500 1974 .87000 2049 .245001600 158.00000 1675 .37500 1750 158.75000 1825 .12500 1900 159.50000 1975 .87500 2050 160.250001601 .00500 1676 .38000 1751 .75500 1826 .13000 1901 .50500 1976 .88000 2051 .255001602 .01000 1677 .38500 1752 .76000 1827 .13500 1902 .51000 1977 .88500 2052 .260001603 .01500 1678 .39000 1753 .76500 1828 .14000 1903 .51500 1978 .89000 2053 .265001604 .02000 1679 .39500 1754 .77000 1829 .14500 1904 .52000 1979 .89500 2054 .270001605 .02500 1680 .40000 1755 .77500 1830 .15000 1905 .52500 1980 .90000 2055 .275001606.03000 1681 .40500 1756 .78000 1831 .15500 1906 .53000 1981 .90500 2056 .280001607 .03500 1682 .41000 1757 .78500 1832 .16000 1907 .53500 1982 .91000 2057 .285001608 .04000 1683 .41500 1758 .79000 1833 .16500 1908 .54000 1983 .91500 2058 .290001609 .045001684 .42000 1759 .79500 1834 .17000 1909 .54500 1984 .92000 2059 .295001610 .05000 1685 .42500 1760 .80000 1835 .17500 1910 .55000 1985 .92500 2060 .300001611 .05500 1686 .43000 1761 .80500 1836 .18000 1911 .55500 1986 .93000 2061 .305001612 .060001687.43500 1762 .81000 1837 .18500 1912 .56000 1987 .93500 2062 .310001613 .06500 1688 .44000 1763 .81500 1838 .19000 1913 .56500 1988 .94000 2063 .315001614 .07000 1689 .44500 1764 .82000 1839 .19500 1914 .57000 1989 .94500 2064 .320001615 .07500 1690.45000 1765 .82500 1840 .20000 1915 .57500 1990 .95000 2065 .325001616 .08000 1691 .45500 1766 .83000 1841 .20500 1916 .58000 1991 .95500 2066 .330001617 .08500 1692 .46000 1767 .83500 1842 .21000 1917 .58500 1992 .96000 2067 .335001618 .09000 1693 .465001768 .84000 1843 .21500 1918 .59000 1993 .96500 2068 .340001619 .09500 1694 .47000 1769 .84500 1844 .22000 1919 .59500 1994 .97000 2069 .345001620 .10000 1695 .47500 1770 .85000 1845 .22500 1920 .60000 1995 .97500 2070 .350001621 .10500 1696 .480001771.85500 1846 .23000 1921 .60500 1996 .98000 2071 .355001622 .11000 1697 .48500 1772 .86000 1847 .23500 1922 .61000 1997 .98500 2072 .360001623 .11500 1698 .49000 1773 .86500 1848 .24000 1923 .61500 1998 .99000 2073 .365001624 .12000 1699 .49500 1774.87000 1849 .24500 1924 .62000 1999 .99500 2074 .370001625 .12500 1700 158.50000 1775 .87500 1850 159.25000 1925 .62500 2000 160.00000 2075 .375001626 .13000 1701 .50500 1776 .88000 1851 .25500 1926 .63000 2001 .00500 2076 .380001627 .13500 1702 .510001777 .88500 1852 .26000 1927 .63500 2002 .01000 2077 .385001628 .14000 1703 .51500 1778 .89000 1853 .26500 1928 .64000 2003 .01500 2078 .390001629 .14500 1704 .52000 1779 .89500 1854 .27000 1929 .64500 2004 .02000 2079 .395001630 .15000 1705 .52500 1780 .90000 1855 .27500 1930 .65000 2005 .02500 2080 .400001631 .15500 1706 .53000 1781 .90500 1856 .28000 1931 .65500 2006 .03000 2081 .405001632 .16000 1707 .53500 1782 .91000 1857 .28500 1932 .66000 2007 .03500 2082 .410001633 .16500 1708 .54000 1783 .915001858 .29000 1933 .66500 2008 .04000 2083 .415001634 .17000 1709 .54500 1784 .92000 1859 .29500 1934 .67000 2009 .04500 2084 .420001635 .17500 1710 .55000 1785 .92500 1860 .30000 1935 .67500 2010 .05000 2085 .425001636 .18000 1711 .55500 1786 .930001861 .30500 1936 .68000 2011 .05500 2086 .430001637 .18500 1712 .56000 1787 .93500 1862 .31000 1937 .68500 2012 .06000 2087 .435001638 .19000 1713 .56500 1788 .94000 1863 .31500 1938 .69000 2013 .06500 2088 .440001639 .19500 1714 .57000 1789 .94500 1864 .32000 1939 .69500 2014 .07000 2089 .445001640 .20000 1715 .57500 1790 .95000 1865 .32500 1940 .70000 2015 .07500 2090 .450001641 .20500 1716 .58000 1791 .95500 1866 .33000 1941 .70500 2016 .08000 2091 .455001642 .21000 1717 .58500 1792 .96000 1867 .335001942 .71000 2017 .08500 2092 .460001643 .21500 1718 .59000 1793 .96500 1868 .34000 1943 .71500 2018 .09000 2093 .465001644 .22000 1719 .59500 1794 .97000 1869 .34500 1944 .72000 2019 .09500 2094 .470001645 .22500 1720 .60000 1795 .97500 1870 .350001945 .72500 2020 .10000 2095 .475001646 .23000 1721 .60500 1796 .98000 1871 .35500 1946 .73000 2021 .10500 2096 .480001647 .23500 1722 .61000 1797 .98500 1872 .36000 1947 .73500 2022 .11000 2097 .485001648 .24000 1723 .61500 1798 .99000 1873 .36500 1948 .74000 2023 .11500 2098 .490001649 .24500 1724 .62000 1799 .99500 1874 .37000 1949 .74500 2024 .12000 2099 .49500
VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHz3-5VT-3/160 Channel Designation Table: 150 to 174 MHz, 5 kHz Increments (continued)Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)2100 160.50000 2175 160.87500 2250 161.25000 2325 161.62500 2400 162.00000 2475 162.37500 2550 162.750002101 .50500 2176 .88000 2251 .25500 2326 .63000 2401 .00500 2476 .38000 2551 .755002102 .51000 2177 .88500 2252 .26000 2327 .63500 2402 .01000 2477 .38500 2552 .760002103 .51500 2178 .89000 2253 .26500 2328 .64000 2403 .01500 2478 .39000 2553 .765002104 .52000 2179 .89500 2254 .27000 2329 .64500 2404 .02000 2479 .39500 2554 .770002105 .52500 2180 .90000 2255 .27500 2330 .65000 2405 .02500 2480 .40000 2555 .775002106 .53000 2181 .90500 2256 .28000 2331 .65500 2406 .03000 2481 .40500 2556 .780002107 .53500 2182 .91000 2257 .28500 2332 .66000 2407 .03500 2482 .41000 2557 .785002108 .54000 2183 .91500 2258 .29000 2333 .66500 2408 .04000 2483 .41500 2558 .790002109 .54500 2184 .92000 2259 .29500 2334 .67000 2409 .04500 2484 .42000 2559 .795002110 .55000 2185 .92500 2260 .30000 2335 .67500 2410 .05000 2485 .42500 2560 .800002111 .55500 2186 .93000 2261 .30500 2336 .68000 2411 .05500 2486 .43000 2561 .805002112 .56000 2187 .93500 2262 .31000 2337 .68500 2412 .06000 2487 .43500 2562 .810002113 .56500 2188 .94000 2263 .31500 2338 .69000 2413 .06500 2488 .44000 2563 .815002114 .57000 2189 .94500 2264 .32000 2339 .69500 2414 .07000 2489 .44500 2564 .820002115 .57500 2190 .95000 2265 .32500 2340 .70000 2415 .07500 2490 .45000 2565 .825002116 .58000 2191 .95500 2266 .33000 2341 .70500 2416 .08000 2491 .45500 2566 .830002117 .58500 2192 .96000 2267 .33500 2342 .71000 2417 .08500 2492 .46000 2567 .835002118 .59000 2193 .96500 2268 .34000 2343 .71500 2418 .09000 2493 .46500 2568 .840002119 .59500 2194 .97000 2269 .34500 2344 .72000 2419 .09500 2494 .47000 2569 .845002120 .60000 2195 .97500 2270 .35000 2345 .72500 2420 .10000 2495 .47500 2570 .850002121 .60500 2196 .98000 2271 .35500 2346 .73000 2421 .10500 2496 .48000 2571 .855002122 .61000 2197 .98500 2272 .36000 2347 .73500 2422 .11000 2497 .48500 2572 .860002123 .61500 2198 .99000 2273 .36500 2348 .74000 2423 .11500 2498 .49000 2573 .865002124 .62000 2199 .99500 2274 .37000 2349 .74500 2424 .12000 2499 .49500 2574 .870002125 .62500 2200 161.00000 2275 .37500 2350 161.75000 2425 .12500 2500 162.50000 2575 .875002126 .63000 2201 .00500 2276 .38000 2351 .75500 2426 .13000 2501 .50500 2576 .880002127 .63500 2202 .01000 2277 .38500 2352 .76000 2427 .13500 2502 .51000 2577 .885002128 .64000 2203 .01500 2278 .39000 2353 .76500 2428 .14000 2503 .51500 2578 .890002129 .64500 2204 .02000 2279 .39500 2354 .77000 2429 .14500 2504 .52000 2579 .895002130 .65000 2205 .02500 2280 .40000 2355 .77500 2430 .15000 2505 .52500 2580 .900002131 .65500 2206 .03000 2281 .40500 2356 .78000 2431 .15500 2506 .53000 2581.905002132 .66000 2207 .03500 2282 .41000 2357 .78500 2432 .16000 2507 .53500 2582 .910002133 .66500 2208 .04000 2283 .41500 2358 .79000 2433 .16500 2508 .54000 2583 .915002134 .67000 2209 .04500 2284 .42000 2359 .79500 2434 .17000 2509 .54500 2584.920002135 .67500 2210 .05000 2285 .42500 2360 .80000 2435 .17500 2510 .55000 2585 .925002136 .68000 2211 .05500 2286 .43000 2361 .80500 2436 .18000 2511 .55500 2586 .930002137 .68500 2212 .06000 2287 .43500 2362 .81000 2437 .18500 2512 .56000 2587 .935002138 .69000 2213 .06500 2288 .44000 2363 .81500 2438 .19000 2513 .56500 2588 .940002139 .69500 2214 .07000 2289 .44500 2364 .82000 2439 .19500 2514 .57000 2589 .945002140 .70000 2215 .07500 2290 .45000 2365 .82500 2440 .20000 2515 .57500 2590 .950002141 .70500 2216 .08000 2291 .45500 2366 .83000 2441 .20500 2516 .58000 2591 .955002142 .71000 2217 .08500 2292 .46000 2367 .83500 2442 .21000 2517 .58500 2592 .960002143 .71500 2218 .09000 2293 .46500 2368 .84000 2443 .21500 2518 .59000 2593 .965002144.72000 2219 .09500 2294 .47000 2369 .84500 2444 .22000 2519 .59500 2594 .970002145 .72500 2220 .10000 2295 .47500 2370 .85000 2445 .22500 2520 .60000 2595 .975002146 .73000 2221 .10500 2296 .48000 2371 .85500 2446 .23000 2521 .60500 2596 .980002147 .73500 2222 .11000 2297 .48500 2372 .86000 2447 .23500 2522 .61000 2597 .985002148 .74000 2223 .11500 2298 .49000 2373 .86500 2448 .24000 2523 .61500 2598 .990002149 .74500 2224 .12000 2299 .49500 2374 .87000 2449 .24500 2524 .62000 2599 .995002150 160.75000 2225 .12500 2300 161.50000 2375 .87500 2450 162.25000 2525 .62500 2600 163.000002151 .75500 2226 .13000 2301 .50500 2376 .88000 2451 .25500 2526 .63000 2601 .005002152 .76000 2227 .13500 2302 .51000 2377 .88500 2452 .26000 2527 .63500 2602 .010002153.76500 2228 .14000 2303 .51500 2378 .89000 2453 .26500 2528 .64000 2603 .015002154 .77000 2229 .14500 2304 .52000 2379 .89500 2454 .27000 2529 .64500 2604 .020002155 .77500 2230 .15000 2305 .52500 2380 .90000 2455 .27500 2530 .65000 2605 .025002156 .78000 2231 .15500 2306 .53000 2381 .90500 2456 .28000 2531 .65500 2606 .030002157 .78500 2232 .16000 2307 .53500 2382 .91000 2457 .28500 2532 .66000 2607 .035002158 .79000 2233 .16500 2308 .54000 2383 .91500 2458 .29000 2533 .66500 2608 .040002159 .79500 2234.17000 2309 .54500 2384 .92000 2459 .29500 2534 .67000 2609 .045002160 .80000 2235 .17500 2310 .55000 2385 .92500 2460 .30000 2535 .67500 2610 .050002161 .80500 2236 .18000 2311 .55500 2386 .93000 2461 .30500 2536 .68000 2611 .055002162 .81000 2237.18500 2312 .56000 2387 .93500 2462 .31000 2537 .68500 2612 .060002163 .81500 2238 .19000 2313 .56500 2388 .94000 2463 .31500 2538 .69000 2613 .065002164 .82000 2239 .19500 2314 .57000 2389 .94500 2464 .32000 2539 .69500 2614 .070002165 .82500 2240 .20000 2315 .57500 2390 .95000 2465 .32500 2540 .70000 2615 .075002166 .83000 2241 .20500 2316 .58000 2391 .95500 2466 .33000 2541 .70500 2616 .080002167 .83500 2242 .21000 2317 .58500 2392 .96000 2467 .33500 2542 .71000 2617 .085002168 .84000 2243 .21500 2318.59000 2393 .96500 2468 .34000 2543 .71500 2618 .090002169 .84500 2244 .22000 2319 .59500 2394 .97000 2469 .34500 2544 .72000 2619 .095002170 .85000 2245 .22500 2320 .60000 2395 .97500 2470 .35000 2545 .72500 2620 .100002171 .85500 2246 .23000 2321.60500 2396 .98000 2471 .35500 2546 .73000 2621 .105002172 .86000 2247 .23500 2322 .61000 2397 .98500 2472 .36000 2547 .73500 2622 .110002173 .86500 2248 .24000 2323 .61500 2398 .99000 2473 .36500 2548 .74000 2623 .115002174 .87000 2249 .24500 2324 .62000 2399 .99500 2474 .37000 2549 .74500 2624 .12000
3-6VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHzVT-3/160 Channel Designation Table: 150 to 174 MHz, 5 kHz Increments (continued)Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)2625 163.12500 2700 163.50000 2775 163.87500 2850 164.25000 2925 164.62500 3000 165.00000 3075 165.375002626 .13000 2701 .50500 2776 .88000 2851 .25500 2926 .63000 3001 .00500 3076 .380002627 .13500 2702 .510002777.88500 2852 .26000 2927 .63500 3002 .01000 3077 .385002628 .14000 2703 .51500 2778 .89000 2853 .26500 2928 .64000 3003 .01500 3078 .390002629 .14500 2704 .52000 2779 .89500 2854 .27000 2929 .64500 3004 .02000 3079 .395002630 .15000 2705 .52500 2780.90000 2855 .27500 2930 .65000 3005 .02500 3080 .400002631 .15500 2706 .53000 2781 .90500 2856 .28000 2931 .65500 3006 .03000 3081 .405002632 .16000 2707 .53500 2782 .91000 2857 .28500 2932 .66000 3007 .03500 3082 .410002633 .16500 2708 .54000 2783 .915002858 .29000 2933 .66500 3008 .04000 3083 .415002634 .17000 2709 .54500 2784 .92000 2859 .29500 2934 .67000 3009 .04500 3084 .420002635 .17500 2710 .55000 2785 .92500 2860 .30000 2935 .67500 3010 .05000 3085 .425002636 .18000 2711 .55500 2786 .930002861.30500 2936 .68000 3011 .05500 3086 .430002637 .18500 2712 .56000 2787 .93500 2862 .31000 2937 .68500 3012 .06000 3087 .435002638 .19000 2713 .56500 2788 .94000 2863 .31500 2938 .69000 3013 .06500 3088 .440002639 .19500 2714 .57000 2789 .94500 2864.32000 2939 .69500 3014 .07000 3089 .445002640 .20000 2715 .57500 2790 .95000 2865 .32500 2940 .70000 3015 .07500 3090 .450002641 .20500 2716 .58000 2791 .95500 2866 .33000 2941 .70500 3016 .08000 3091 .455002642 .21000 2717 .58500 2792 .96000 2867 .335002942 .71000 3017 .08500 3092 .460002643 .21500 2718 .59000 2793 .96500 2868 .34000 2943 .71500 3018 .09000 3093 .465002644 .22000 2719 .59500 2794 .97000 2869 .34500 2944 .72000 3019 .09500 3094 .470002645 .22500 2720 .60000 2795 .97500 2870 .350002945.72500 3020 .10000 3095 .475002646 .23000 2721 .60500 2796 .98000 2871 .35500 2946 .73000 3021 .10500 3096 .480002647 .23500 2722 .61000 2797 .98500 2872 .36000 2947 .73500 3022 .11000 3097 .485002648 .24000 2723 .61500 2798 .99000 2873 .36500 2948.74000 3023 .11500 3098 .490002649 .24500 2724 .62000 2799 .99500 2874 .37000 2949 .74500 3024 .12000 3099 .495002650 163.25000 2725 .62500 2800 164.00000 2875 .37500 2950 164.75000 3025 .12500 3100 165.500002651 .25500 2726 .63000 2801 .00500 2876 .380002951 .75500 3026 .13000 3101 .505002652 .26000 2727 .63500 2802 .01000 2877 .38500 2952 .76000 3027 .13500 3102 .510002653 .26500 2728 .64000 2803 .01500 2878 .39000 2953 .76500 3028 .14000 3103 .515002654 .27000 2729 .64500 2804 .02000 2879 .395002954.77000 3029 .14500 3104 .520002655 .27500 2730 .65000 2805 .02500 2880 .40000 2955 .77500 3030 .15000 3105 .525002656 .28000 2731 .65500 2806 .03000 2881 .40500 2956 .78000 3031 .15500 3106 .530002657 .28500 2732 .66000 2807 .03500 2882 .41000 2957.78500 3032 .16000 3107 .535002658 .29000 2733 .66500 2808 .04000 2883 .41500 2958 .79000 3033 .16500 3108 .540002659 .29500 2734 .67000 2809 .04500 2884 .42000 2959 .79500 3034 .17000 3109 .545002660 .30000 2735 .67500 2810 .05000 2885 .42500 2960 .800003035 .17500 3110 .550002661 .30500 2736 .68000 2811 .05500 2886 .43000 2961 .80500 3036 .18000 3111 .555002662 .31000 2737 .68500 2812 .06000 2887 .43500 2962 .81000 3037 .18500 3112 .560002663 .31500 2738 .69000 2813 .06500 2888 .44000 2963 .815003038.19000 3113 .565002664 .32000 2739 .69500 2814 .07000 2889 .44500 2964 .82000 3039 .19500 3114 .570002665 .32500 2740 .70000 2815 .07500 2890 .45000 2965 .82500 3040 .20000 3115 .575002666 .33000 2741 .70500 2816 .08000 2891 .45500 2966 .83000 3041.20500 3116 .580002667 .33500 2742 .71000 2817 .08500 2892 .46000 2967 .83500 3042 .21000 3117 .585002668 .34000 2743 .71500 2818 .09000 2893 .46500 2968 .84000 3043 .21500 3118 .590002669 .34500 2744 .72000 2819 .09500 2894 .47000 2969 .84500 3044 .220003119 .595002670 .35000 2745 .72500 2820 .10000 2895 .47500 2970 .85000 3045 .22500 3120 .600002671 .35500 2746 .73000 2821 .10500 2896 .48000 2971 .85500 3046 .23000 3121 .605002672 .36000 2747 .73500 2822 .11000 2897 .48500 2972 .86000 3047 .235003122.610002673 .36500 2748 .74000 2823 .11500 2898 .49000 2973 .86500 3048 .24000 3123 .615002674 .37000 2749 .74500 2824 .12000 2899 .49500 2974 .87000 3049 .24500 3124 .620002675 .37500 2750 163.75000 2825 .12500 2900 164.50000 2975 .87500 3050 165.250003125 .625002676 .38000 2751 .75500 2826 .13000 2901 .50500 2976 .88000 3051 .25500 3126 .630002677 .38500 2752 .76000 2827 .13500 2902 .51000 2977 .88500 3052 .26000 3127 .635002678 .39000 2753 .76500 2828 .14000 2903 .51500 2978 .89000 3053 .265003128 .640002679 .39500 2754 .77000 2829 .14500 2904 .52000 2979 .89500 3054 .27000 3129 .645002680 .40000 2755 .77500 2830 .15000 2905 .52500 2980 .90000 3055 .27500 3130 .650002681 .40500 2756 .78000 2831 .15500 2906 .53000 2981 .90500 3056 .28000 3131 .655002682 .41000 2757 .78500 2832 .16000 2907 .53500 2982 .91000 3057 .28500 3132 .660002683 .41500 2758 .79000 2833 .16500 2908 .54000 2983 .91500 3058 .29000 3133 .665002684 .42000 2759 .79500 2834 .17000 2909 .54500 2984 .92000 3059 .29500 3134 .670002685 .42500 2760 .80000 2835 .17500 2910 .55000 2985 .92500 3060 .30000 3135 .675002686 .43000 2761 .80500 2836 .18000 2911 .55500 2986 .93000 3061 .30500 3136 .680002687 .43500 2762 .81000 2837 .18500 2912 .56000 2987 .93500 3062 .31000 3137 .685002688 .44000 2763 .81500 2838 .19000 2913 .56500 2988 .94000 3063 .31500 3138 .690002689 .44500 2764 .82000 2839 .19500 2914 .57000 2989 .94500 3064 .32000 3139 .695002690 .45000 2765 .82500 2840 .20000 2915 .57500 2990 .95000 3065 .32500 3140 .700002691 .45500 2766 .83000 2841 .20500 2916 .58000 2991 .95500 3066 .33000 3141 .705002692 .46000 2767 .83500 2842 .21000 2917 .58500 2992 .96000 3067 .33500 3142 .710002693 .46500 2768 .84000 2843 .21500 2918 .59000 2993 .96500 3068 .34000 3143 .715002694 .470002769 .84500 2844 .22000 2919 .59500 2994 .97000 3069 .34500 3144 .720002695 .47500 2770 .85000 2845 .22500 2920 .60000 2995 .97500 3070 .35000 3145 .725002696 .48000 2771 .85500 2846 .23000 2921 .60500 2996 .98000 3071 .35500 3146 .730002697 .485002772 .86000 2847 .23500 2922 .61000 2997 .98500 3072 .36000 3147 .735002698 .49000 2773 .86500 2848 .24000 2923 .61500 2998 .99000 3073 .36500 3148 .740002699 .49500 2774 .87000 2849 .24500 2924 .62000 2999 .99500 3074 .37000 3149 .74500
VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHz3-7VT-3/160 Channel Designation Table: 150 to 174 MHz, 5 kHz Increments (continued)Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)3150 165.75000 3225 166.12500 3300 166.50000 3375 166.87500 3450 167.25000 3525 167.62500 3600 168.000003151 .75500 3226 .13000 3301 .50500 3376 .88000 3451 .25500 3526 .63000 3601 .005003152 .76000 3227 .13500 3302 .51000 3377 .88500 3452 .26000 3527 .63500 3602 .010003153 .76500 3228 .14000 3303 .51500 3378 .89000 3453 .26500 3528 .64000 3603 .015003154 .77000 3229 .14500 3304 .52000 3379 .89500 3454 .27000 3529 .64500 3604 .020003155 .77500 3230 .15000 3305 .52500 3380 .90000 3455 .27500 3530 .65000 3605 .025003156 .78000 3231 .15500 3306 .53000 3381 .90500 3456 .28000 3531 .65500 3606 .030003157 .78500 3232 .16000 3307 .53500 3382 .91000 3457 .28500 3532 .66000 3607 .035003158 .79000 3233 .16500 3308 .54000 3383 .91500 3458 .29000 3533 .66500 3608 .040003159 .79500 3234 .17000 3309 .54500 3384 .92000 3459 .29500 3534 .67000 3609 .045003160 .80000 3235 .17500 3310 .55000 3385 .92500 3460 .30000 3535 .67500 3610 .050003161 .80500 3236 .18000 3311 .55500 3386 .93000 3461 .30500 3536 .68000 3611 .055003162 .81000 3237 .18500 3312 .56000 3387 .93500 3462 .31000 3537 .68500 3612 .060003163 .81500 3238 .19000 3313 .56500 3388 .94000 3463 .31500 3538 .69000 3613 .065003164 .82000 3239 .19500 3314 .57000 3389 .94500 3464 .32000 3539 .69500 3614 .070003165 .82500 3240 .20000 3315 .57500 3390 .95000 3465 .32500 3540 .70000 3615 .075003166 .83000 3241 .20500 3316 .58000 3391 .95500 3466 .33000 3541 .70500 3616 .080003167 .83500 3242 .21000 3317 .58500 3392 .96000 3467 .33500 3542 .71000 3617 .085003168 .84000 3243 .21500 3318 .59000 3393 .96500 3468 .34000 3543 .71500 3618 .090003169 .84500 3244 .22000 3319 .59500 3394 .97000 3469 .34500 3544 .72000 3619 .095003170 .85000 3245 .22500 3320 .60000 3395 .97500 3470 .35000 3545 .72500 3620 .100003171 .85500 3246 .23000 3321 .60500 3396 .98000 3471 .35500 3546 .73000 3621 .105003172 .86000 3247 .23500 3322 .61000 3397 .98500 3472 .36000 3547 .73500 3622 .110003173 .86500 3248 .24000 3323 .61500 3398 .99000 3473 .36500 3548 .74000 3623 .115003174 .87000 3249 .24500 3324 .62000 3399 .99500 3474 .37000 3549 .74500 3624 .120003175 .87500 3250 166.25000 3325 .62500 3400 167.00000 3475 .37500 3550 167.75000 3625 .125003176 .88000 3251 .25500 3326 .63000 3401 .00500 3476 .38000 3551 .75500 3626 .130003177 .88500 3252 .26000 3327.63500 3402 .01000 3477 .38500 3552 .76000 3627 .135003178 .89000 3253 .26500 3328 .64000 3403 .01500 3478 .39000 3553 .76500 3628 .140003179 .89500 3254 .27000 3329 .64500 3404 .02000 3479 .39500 3554 .77000 3629 .145003180 .90000 3255 .27500 3330 .65000 3405 .02500 3480 .40000 3555 .77500 3630 .150003181 .90500 3256 .28000 3331 .65500 3406 .03000 3481 .40500 3556 .78000 3631 .155003182 .91000 3257 .28500 3332 .66000 3407 .03500 3482 .41000 3557 .78500 3632 .160003183 .91500 3258 .29000 3333 .66500 3408.04000 3483 .41500 3558 .79000 3633 .165003184 .92000 3259 .29500 3334 .67000 3409 .04500 3484 .42000 3559 .79500 3634 .170003185 .92500 3260 .30000 3335 .67500 3410 .05000 3485 .42500 3560 .80000 3635 .175003186 .93000 3261 .30500 3336 .68000 3411.05500 3486 .43000 3561 .80500 3636 .180003187 .93500 3262 .31000 3337 .68500 3412 .06000 3487 .43500 3562 .81000 3637 .185003188 .94000 3263 .31500 3338 .69000 3413 .06500 3488 .44000 3563 .81500 3638 .190003189 .94500 3264 .32000 3339 .69500 3414 .07000 3489 .44500 3564 .82000 3639 .195003190 .95000 3265 .32500 3340 .70000 3415 .07500 3490 .45000 3565 .82500 3640 .200003191 .95500 3266 .33000 3341 .70500 3416 .08000 3491 .45500 3566 .83000 3641 .205003192 .96000 3267 .33500 3342 .71000 3417 .08500 3492.46000 3567 .83500 3642 .210003193 .96500 3268 .34000 3343 .71500 3418 .09000 3493 .46500 3568 .84000 3643 .215003194 .97000 3269 .34500 3344 .72000 3419 .09500 3494 .47000 3569 .84500 3644 .220003195 .97500 3270 .35000 3345 .72500 3420 .10000 3495.47500 3570 .85000 3645 .225003196 .98000 3271 .35500 3346 .73000 3421 .10500 3496 .48000 3571 .85500 3646 .230003197 .98500 3272 .36000 3347 .73500 3422 .11000 3497 .48500 3572 .86000 3647 .235003198 .99000 3273 .36500 3348 .74000 3423 .11500 3498 .49000 3573 .86500 3648 .240003199 .99500 3274 .37000 3349 .74500 3424 .12000 3499 .49500 3574 .87000 3649 .245003200 166.00000 3275 .37500 3350 166.75000 3425 .12500 3500 167.50000 3575 .87500 3650 168.250003201 .00500 3276 .38000 3351 .75500 3426 .13000 3501.50500 3576 .88000 3651 .255003202 .01000 3277 .38500 3352 .76000 3427 .13500 3502 .51000 3577 .88500 3652 .260003203 .01500 3278 .39000 3353 .76500 3428 .14000 3503 .51500 3578 .89000 3653 .265003204 .02000 3279 .39500 3354 .77000 3429 .14500 3504.52000 3579 .89500 3654 .270003205 .02500 3280 .40000 3355 .77500 3430 .15000 3505 .52500 3580 .90000 3655 .275003206 .03000 3281 .40500 3356 .78000 3431 .15500 3506 .53000 3581 .90500 3656 .280003207 .03500 3282 .41000 3357 .78500 3432 .16000 3507 .53500 3582 .91000 3657 .285003208 .04000 3283 .41500 3358 .79000 3433 .16500 3508 .54000 3583 .91500 3658 .290003209 .04500 3284 .42000 3359 .79500 3434 .17000 3509 .54500 3584 .92000 3659 .295003210 .05000 3285 .42500 3360 .80000 3435 .17500 3510 .55000 3585.92500 3660 .300003211 .05500 3286 .43000 3361 .80500 3436 .18000 3511 .55500 3586 .93000 3661 .305003212 .06000 3287 .43500 3362 .81000 3437 .18500 3512 .56000 3587 .93500 3662 .310003213 .06500 3288 .44000 3363 .81500 3438 .19000 3513 .56500 3588.94000 3663 .315003214 .07000 3289 .44500 3364 .82000 3439 .19500 3514 .57000 3589 .94500 3664 .320003215 .07500 3290 .45000 3365 .82500 3440 .20000 3515 .57500 3590 .95000 3665 .325003216 .08000 3291 .45500 3366 .83000 3441 .20500 3516 .58000 3591 .95500 3666 .330003217 .08500 3292 .46000 3367 .83500 3442 .21000 3517 .58500 3592 .96000 3667 .335003218 .09000 3293 .46500 3368 .84000 3443 .21500 3518 .59000 3593 .96500 3668 .340003219 .09500 3294 .47000 3369 .84500 3444 .22000 3519 .59500 3594 .97000 3669.345003220 .10000 3295 .47500 3370 .85000 3445 .22500 3520 .60000 3595 .97500 3670 .350003221 .10500 3296 .48000 3371 .85500 3446 .23000 3521 .60500 3596 .98000 3671 .355003222 .11000 3297 .48500 3372 .86000 3447 .23500 3522 .61000 3597 .98500 3672.360003223 .11500 3298 .49000 3373 .86500 3448 .24000 3523 .61500 3598 .99000 3673 .365003224 .12000 3299 .49500 3374 .87000 3449 .24500 3524 .62000 3599 .99500 3674 .37000
3-8VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHzVT-3/160 Channel Designation Table: 150 to 174 MHz, 5 kHz Increments (continued)Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)3675 168.37500 3750 168.75000 3825 169.12500 3900 169.50000 3975 169.87500 4050 170.250004125 170.625003676 .38000 3751 .75500 3826 .13000 3901 .50500 3976 .88000 4051 .25500 4126 .630003677 .38500 3752 .76000 3827 .13500 3902 .51000 3977 .88500 4052 .26000 4127 .635003678 .39000 3753 .76500 3828 .14000 3903 .51500 3978 .89000 4053 .265004128.640003679 .39500 3754 .77000 3829 .14500 3904 .52000 3979 .89500 4054 .27000 4129 .645003680 .40000 3755 .77500 3830 .15000 3905 .52500 3980 .90000 4055 .27500 4130 .650003681 .40500 3756 .78000 3831 .15500 3906 .53000 3981 .90500 4056 .28000 4131.655003682 .41000 3757 .78500 3832 .16000 3907 .53500 3982 .91000 4057 .28500 4132 .660003683 .41500 3758 .79000 3833 .16500 3908 .54000 3983 .91500 4058 .29000 4133 .665003684 .42000 3759 .79500 3834 .17000 3909 .54500 3984 .92000 4059 .29500 4134 .670003685 .42500 3760 .80000 3835 .17500 3910 .55000 3985 .92500 4060 .30000 4135 .675003686 .43000 3761 .80500 3836 .18000 3911 .55500 3986 .93000 4061 .30500 4136 .680003687 .43500 3762 .81000 3837 .18500 3912 .56000 3987 .93500 4062 .31000 4137 .685003688 .44000 3763 .81500 3838 .19000 3913 .56500 3988 .94000 4063 .31500 4138 .690003689 .44500 3764 .82000 3839 .19500 3914 .57000 3989 .94500 4064 .32000 4139 .695003690 .45000 3765 .82500 3840 .20000 3915 .57500 3990 .95000 4065 .32500 4140 .700003691.45500 3766 .83000 3841 .20500 3916 .58000 3991 .95500 4066 .33000 4141 .705003692 .46000 3767 .83500 3842 .21000 3917 .58500 3992 .96000 4067 .33500 4142 .710003693 .46500 3768 .84000 3843 .21500 3918 .59000 3993 .96500 4068 .34000 4143 .715003694 .470003769 .84500 3844 .22000 3919 .59500 3994 .97000 4069 .34500 4144 .720003695 .47500 3770 .85000 3845 .22500 3920 .60000 3995 .97500 4070 .35000 4145 .725003696 .48000 3771 .85500 3846 .23000 3921 .60500 3996 .98000 4071 .35500 4146 .730003697 .485003772.86000 3847 .23500 3922 .61000 3997 .98500 4072 .36000 4147 .735003698 .49000 3773 .86500 3848 .24000 3923 .61500 3998 .99000 4073 .36500 4148 .740003699 .49500 3774 .87000 3849 .24500 3924 .62000 3999 .99500 4074 .37000 4149 .745003700 168.50000 3775.87500 3850 169.25000 3925 .62500 4000 170.00000 4075 .37500 4150 170.750003701 .50500 3776 .88000 3851 .25500 3926 .63000 4001 .00500 4076 .38000 4151 .755003702 .51000 3777 .88500 3852 .26000 3927 .63500 4002 .01000 4077 .38500 4152 .760003703 .515003778 .89000 3853 .26500 3928 .64000 4003 .01500 4078 .39000 4153 .765003704 .52000 3779 .89500 3854 .27000 3929 .64500 4004 .02000 4079 .39500 4154 .770003705 .52500 3780 .90000 3855 .27500 3930 .65000 4005 .02500 4080 .40000 4155 .775003706 .530003781.90500 3856 .28000 3931 .65500 4006 .03000 4081 .40500 4156 .780003707 .53500 3782 .91000 3857 .28500 3932 .66000 4007 .03500 4082 .41000 4157 .785003708 .54000 3783 .91500 3858 .29000 3933 .66500 4008 .04000 4083 .41500 4158 .790003709 .54500 3784.92000 3859 .29500 3934 .67000 4009 .04500 4084 .42000 4159 .795003710 .55000 3785 .92500 3860 .30000 3935 .67500 4010 .05000 4085 .42500 4160 .800003711 .55500 3786 .93000 3861 .30500 3936 .68000 4011 .05500 4086 .43000 4161 .805003712 .56000 3787 .935003862 .31000 3937 .68500 4012 .06000 4087 .43500 4162 .810003713 .56500 3788 .94000 3863 .31500 3938 .69000 4013 .06500 4088 .44000 4163 .815003714 .57000 3789 .94500 3864 .32000 3939 .69500 4014 .07000 4089 .44500 4164 .820003715 .57500 3790 .950003865.32500 3940 .70000 4015 .07500 4090 .45000 4165 .825003716 .58000 3791 .95500 3866 .33000 3941 .70500 4016 .08000 4091 .45500 4166 .830003717 .58500 3792 .96000 3867 .33500 3942 .71000 4017 .08500 4092 .46000 4167 .835003718 .59000 3793 .96500 3868.34000 3943 .71500 4018 .09000 4093 .46500 4168 .840003719 .59500 3794 .97000 3869 .34500 3944 .72000 4019 .09500 4094 .47000 4169 .845003720 .60000 3795 .97500 3870 .35000 3945 .72500 4020 .10000 4095 .47500 4170 .850003721 .60500 3796 .98000 3871 .355003946 .73000 4021 .10500 4096 .48000 4171 .855003722 .61000 3797 .98500 3872 .36000 3947 .73500 4022 .11000 4097 .48500 4172 .860003723 .61500 3798 .99000 3873 .36500 3948 .74000 4023 .11500 4098 .49000 4173 .865003724 .62000 3799 .99500 3874 .370003949.74500 4024 .12000 4099 .49500 4174 .870003725 .62500 3800 169.00000 3875 .37500 3950 169.75000 4025 .12500 4100 170.50000 4175 .875003726 .63000 3801 .00500 3876 .38000 3951 .75500 4026 .13000 4101 .50500 4176 .880003727 .63500 3802 .01000 3877 .385003952 .76000 4027 .13500 4102 .51000 4177 .885003728 .64000 3803 .01500 3878 .39000 3953 .76500 4028 .14000 4103 .51500 4178 .890003729 .64500 3804 .02000 3879 .39500 3954 .77000 4029 .14500 4104 .52000 4179 .895003730 .65000 3805 .02500 3880 .400003955 .77500 4030 .15000 4105 .52500 4180 .900003731 .65500 3806 .03000 3881 .40500 3956 .78000 4031 .15500 4106 .53000 4181 .905003732 .66000 3807 .03500 3882 .41000 3957 .78500 4032 .16000 4107 .53500 4182 .910003733 .66500 3808 .04000 3883 .41500 3958 .79000 4033 .16500 4108 .54000 4183 .915003734 .67000 3809 .04500 3884 .42000 3959 .79500 4034 .17000 4109 .54500 4184 .920003735 .67500 3810 .05000 3885 .42500 3960 .80000 4035 .17500 4110 .55000 4185 .925003736 .68000 3811 .05500 3886 .43000 3961 .805004036 .18000 4111 .55500 4186 .930003737 .68500 3812 .06000 3887 .43500 3962 .81000 4037 .18500 4112 .56000 4187 .935003738 .69000 3813 .06500 3888 .44000 3963 .81500 4038 .19000 4113 .56500 4188 .940003739 .69500 3814 .07000 3889 .44500 3964 .820004039 .19500 4114 .57000 4189 .945003740 .70000 3815 .07500 3890 .45000 3965 .82500 4040 .20000 4115 .57500 4190 .950003741 .70500 3816 .08000 3891 .45500 3966 .83000 4041 .20500 4116 .58000 4191 .955003742 .71000 3817 .08500 3892 .46000 3967 .83500 4042 .21000 4117 .58500 4192 .960003743 .71500 3818 .09000 3893 .46500 3968 .84000 4043 .21500 4118 .59000 4193 .965003744 .72000 3819 .09500 3894 .47000 3969 .84500 4044 .22000 4119 .59500 4194 .970003745 .72500 3820 .10000 3895 .47500 3970 .85000 4045 .225004120 .60000 4195 .975003746 .73000 3821 .10500 3896 .48000 3971 .85500 4046 .23000 4121 .60500 4196 .980003747 .73500 3822 .11000 3897 .48500 3972 .86000 4047 .23500 4122 .61000 4197 .985003748 .74000 3823 .11500 3898 .49000 3973 .86500 4048 .240004123 .61500 4198 .990003749 .74500 3824 .12000 3899 .49500 3974 .87000 4049 .24500 4124 .62000 4199 .99500
VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHz3-9VT-3/160 Channel Designation Table: 150 to 174 MHz, 5 kHz Increments (continued)Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq. Chan. Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)4200 171.00000 4275 171.37500 4350 171.75000 4425 172.12500 4500 172.50000 4575 172.87500 4650 173.250004201 .00500 4276 .38000 4351 .75500 4426 .13000 4501 .50500 4576 .88000 4651 .255004202 .01000 4277 .38500 4352 .76000 4427 .13500 4502 .51000 4577 .88500 4652 .260004203 .01500 4278 .39000 4353 .76500 4428 .14000 4503 .51500 4578 .89000 4653 .265004204 .02000 4279 .39500 4354 .77000 4429 .14500 4504 .52000 4579 .89500 4654 .270004205 .02500 4280 .40000 4355 .77500 4430 .15000 4505 .52500 4580 .90000 4655 .275004206 .03000 4281 .40500 4356 .78000 4431 .15500 4506 .53000 4581 .90500 4656 .280004207 .03500 4282 .41000 4357 .78500 4432 .16000 4507 .53500 4582 .91000 4657 .285004208 .04000 4283 .41500 4358 .79000 4433 .16500 4508 .54000 4583 .91500 4658 .290004209 .04500 4284 .42000 4359 .79500 4434 .17000 4509 .54500 4584 .92000 4659 .295004210 .05000 4285 .42500 4360 .80000 4435 .17500 4510 .55000 4585 .92500 4660 .300004211 .05500 4286 .43000 4361 .80500 4436 .18000 4511 .55500 4586 .93000 4661 .305004212 .06000 4287 .43500 4362 .81000 4437 .18500 4512 .56000 4587 .93500 4662 .310004213 .06500 4288 .44000 4363 .81500 4438 .19000 4513 .56500 4588 .94000 4663 .315004214 .07000 4289 .44500 4364 .82000 4439 .19500 4514 .57000 4589 .94500 4664 .320004215 .07500 4290 .45000 4365 .82500 4440 .20000 4515 .57500 4590 .95000 4665 .325004216 .08000 4291 .45500 4366 .83000 4441 .20500 4516 .58000 4591 .95500 4666 .330004217 .08500 4292 .46000 4367 .83500 4442 .21000 4517 .58500 4592 .96000 4667 .335004218 .09000 4293 .46500 4368 .84000 4443 .21500 4518 .59000 4593 .96500 4668 .340004219 .09500 4294 .47000 4369 .84500 4444 .22000 4519 .59500 4594 .97000 4669 .345004220 .10000 4295 .47500 4370 .85000 4445 .22500 4520 .60000 4595 .97500 4670 .350004221 .10500 4296 .48000 4371 .85500 4446 .23000 4521 .60500 4596 .98000 4671 .355004222 .11000 4297 .48500 4372 .86000 4447 .23500 4522 .61000 4597 .98500 4672 .360004223 .11500 4298 .49000 4373 .86500 4448 .24000 4523 .61500 4598 .99000 4673 .365004224 .12000 4299 .49500 4374 .87000 4449 .24500 4524 .62000 4599 .99500 4674 .370004225 .12500 4300 171.50000 4375 .87500 4450 172.25000 4525 .62500 4600 173.00000 4675.375004226 .13000 4301 .50500 4376 .88000 4451 .25500 4526 .63000 4601 .00500 4676 .380004227 .13500 4302 .51000 4377 .88500 4452 .26000 4527 .63500 4602 .01000 4677 .385004228 .14000 4303 .51500 4378 .89000 4453 .26500 4528 .64000 4603 .01500 4678.390004229 .14500 4304 .52000 4379 .89500 4454 .27000 4529 .64500 4604 .02000 4679 .395004230 .15000 4305 .52500 4380 .90000 4455 .27500 4530 .65000 4605 .02500 4680 .400004231 .15500 4306 .53000 4381 .90500 4456 .28000 4531 .65500 4606 .03000 4681 .405004232 .16000 4307 .53500 4382 .91000 4457 .28500 4532 .66000 4607 .03500 4682 .410004233 .16500 4308 .54000 4383 .91500 4458 .29000 4533 .66500 4608 .04000 4683 .415004234 .17000 4309 .54500 4384 .92000 4459 .29500 4534 .67000 4609 .04500 4684 .420004235 .17500 4310 .55000 4385 .92500 4460 .30000 4535 .67500 4610 .05000 4685 .425004236 .18000 4311 .55500 4386 .93000 4461 .30500 4536 .68000 4611 .05500 4686 .430004237 .18500 4312 .56000 4387 .93500 4462 .31000 4537 .68500 4612 .06000 4687 .435004238.19000 4313 .56500 4388 .94000 4463 .31500 4538 .69000 4613 .06500 4688 .440004239 .19500 4314 .57000 4389 .94500 4464 .32000 4539 .69500 4614 .07000 4689 .445004240 .20000 4315 .57500 4390 .95000 4465 .32500 4540 .70000 4615 .07500 4690 .450004241 .20500 4316 .58000 4391 .95500 4466 .33000 4541 .70500 4616 .08000 4691 .455004242 .21000 4317 .58500 4392 .96000 4467 .33500 4542 .71000 4617 .08500 4692 .460004243 .21500 4318 .59000 4393 .96500 4468 .34000 4543 .71500 4618 .09000 4693 .465004244 .22000 4319.59500 4394 .97000 4469 .34500 4544 .72000 4619 .09500 4694 .470004245 .22500 4320 .60000 4395 .97500 4470 .35000 4545 .72500 4620 .10000 4695 .475004246 .23000 4321 .60500 4396 .98000 4471 .35500 4546 .73000 4621 .10500 4696 .480004247 .23500 4322.61000 4397 .98500 4472 .36000 4547 .73500 4622 .11000 4697 .485004248 .24000 4323 .61500 4398 .99000 4473 .36500 4548 .74000 4623 .11500 4698 .490004249 .24500 4324 .62000 4399 .99500 4474 .37000 4549 .74500 4624 .12000 4699 .495004250 171.25000 4325 .62500 4400 172.00000 4475 .37500 4550 172.75000 4625 .12500 4700 173.500004251 .25500 4326 .63000 4401 .00500 4476 .38000 4551 .75500 4626 .13000 4701 .505004252 .26000 4327 .63500 4402 .01000 4477 .38500 4552 .76000 4627 .13500 4702 .510004253 .26500 4328.64000 4403 .01500 4478 .39000 4553 .76500 4628 .14000 4703 .515004254 .27000 4329 .64500 4404 .02000 4479 .39500 4554 .77000 4629 .14500 4704 .520004255 .27500 4330 .65000 4405 .02500 4480 .40000 4555 .77500 4630 .15000 4705 .525004256 .28000 4331.65500 4406 .03000 4481 .40500 4556 .78000 4631 .15500 4706 .530004257 .28500 4332 .66000 4407 .03500 4482 .41000 4557 .78500 4632 .16000 4707 .535004258 .29000 4333 .66500 4408 .04000 4483 .41500 4558 .79000 4633 .16500 4708 .540004259 .29500 4334 .67000 4409 .04500 4484 .42000 4559 .79500 4634 .17000 4709 .545004260 .30000 4335 .67500 4410 .05000 4485 .42500 4560 .80000 4635 .17500 4710 .550004261 .30500 4336 .68000 4411 .05500 4486 .43000 4561 .80500 4636 .18000 4711 .555004262 .31000 4337 .68500 4412.06000 4487 .43500 4562 .81000 4637 .18500 4712 .560004263 .31500 4338 .69000 4413 .06500 4488 .44000 4563 .81500 4638 .19000 4713 .565004264 .32000 4339 .69500 4414 .07000 4489 .44500 4564 .82000 4639 .19500 4714 .570004265 .32500 4340 .70000 4415.07500 4490 .45000 4565 .82500 4640 .20000 4715 .575004266 .33000 4341 .70500 4416 .08000 4491 .45500 4566 .83000 4641 .20500 4716 .580004267 .33500 4342 .71000 4417 .08500 4492 .46000 4567 .83500 4642 .21000 4717 .585004268 .34000 4343 .71500 4418 .09000 4493 .46500 4568 .84000 4643 .21500 4718 .590004269 .34500 4344 .72000 4419 .09500 4494 .47000 4569 .84500 4644 .22000 4719 .595004270 .35000 4345 .72500 4420 .10000 4495 .47500 4570 .85000 4645 .22500 4720 .600004271 .35500 4346 .73000 4421 .10500 4496.48000 4571 .85500 4646 .23000 4721 .605004272 .36000 4347 .73500 4422 .11000 4497 .48500 4572 .86000 4647 .23500 4722 .610004273 .36500 4348 .74000 4423 .11500 4498 .49000 4573 .86500 4648 .24000 4723 .615004274 .37000 4349 .74500 4424 .12000 4499.49500 4574 .87000 4649 .24500 4724 .62000
3-10VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHzVT-3/160 Channel Designation Table: 150 to 174 MHz, 5 kHz Increments (continued)Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)4725 173.62500 4800 174.000004726 .630004727 .635004728 .640004729 .645004730 .650004731 .655004732 .660004733 .665004734 .670004735 .675004736 .680004737 .685004738 .690004739 .695004740 .700004741 .705004742 .710004743 .715004744 .720004745 .725004746 .730004747 .735004748 .740004749 .745004750 173.750004751 .755004752 .760004753 .765004754 .770004755 .775004756 .780004757 .785004758 .790004759 .795004760 .800004761 .805004762 .810004763 .815004764 .820004765 .825004766 .830004767 .835004768 .840004769 .845004770 .850004771 .855004772 .860004773 .865004774 .870004775 .875004776 .880004777 .885004778 .890004779 .895004780 .900004781 .905004782 .910004783 .915004784 .920004785 .925004786 .930004787 .935004788 .940004789 .945004790 .950004791 .955004792 .960004793 .965004794 .970004795 .975004796 .980004797 .985004798 .990004799 .99500
VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHz4-14 VT-3/160 Channel Designation Table: 150-174MHz, 6.25kHz IncrementsChan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)5000 150.000005075 150.46875 5150 150.93750 5225 151.40625 5300 151.87500 5375 152.34375 5450 152.812505001 .00625 5076 .47500 5151 .94375 5226 .41250 5301 .88125 5376 .35000 5451 .818755002 .01250 5077 .48125 5152 .95000 5227 .41875 5302 .88750 5377 .35625 5452 .825005003 .01875 5078 .48750 5153 .95625 5228 .42500 5303 .89375 5378 .36250 5453 .831255004 .02500 5079 .49375 5154 .96250 5229 .43125 5304 .90000 5379 .36875 5454 .837505005 .03125 5080 150.50000 5155 .96875 5230 .43750 5305 .90625 5380 .37500 5455 .843755006 .03750 5081 .50625 5156 .97500 5231 .44375 5306 .91250 5381 .38125 5456 .850005007 .04375 5082 .51250 5157 .98125 5232 .45000 5307 .91875 5382 .38750 5457 .856255008 .05000 5083 .51875 5158 .98750 5233 .45625 5308 .92500 5383 .39375 5458 .862505009 .05625 5084 .52500 5159 .99375 5234 .46250 5309 .93125 5384 .40000 5459 .868755010 .06250 5085 .53125 5160 151.00000 5235 .46875 5310 .93750 5385 .40625 5460 .875005011 .06875 5086 .53750 5161 .00625 5236 .47500 5311 .94375 5386 .41250 5461 .881255012 .07500 5087 .54375 5162 .01250 5237 .48125 5312 .95000 5387 .41875 5462 .887505013 .08125 5088 .55000 5163 .01875 5238 .48750 5313 .95625 5388 .42500 5463 .893755014 .08750 5089 .55625 5164 .02500 5239 .49375 5314 .96250 5389 .43125 5464 .900005015 .093755090 .56250 5165 .03125 5240 151.50000 5315 .96875 5390 .43750 5465 .906255016 .10000 5091 .56875 5166 .03750 5241 .50625 5316 .97500 5391 .44375 5466 .912505017 .10625 5092 .57500 5167 .04375 5242 .51250 5317 .98125 5392 .45000 5467 .918755018 .112505093 .58125 5168 .05000 5243 .51875 5318 .98750 5393 .45625 5468 .925005019 .11875 5094 .58750 5169 .05625 5244 .52500 5319 .99375 5394 .46250 5469 .931255020 .12500 5095 .59375 5170 .06250 5245 .53125 5320 152.00000 5395 .46875 5470 .937505021 .13125 5096 .60000 5171 .06875 5246 .53750 5321 .00625 5396 .47500 5471 .943755022 .13750 5097 .60625 5172 .07500 5247 .54375 5322 .01250 5397 .48125 5472 .950005023 .14375 5098 .61250 5173 .08125 5248 .55000 5323 .01875 5398 .48750 5473 .956255024 .15000 5099.61875 5174 .08750 5249 .55625 5324 .02500 5399 .49375 5474 .962505025 .15625 5100 .62500 5175 .09375 5250 .56250 5325 .03125 5400 152.50000 5475 .968755026 .16250 5101 .63125 5176 .10000 5251 .56875 5326 .03750 5401 .50625 5476 .975005027 .16875 5102 .63750 5177 .10625 5252 .57500 5327 .04375 5402 .51250 5477 .981255028 .17500 5103 .64375 5178 .11250 5253 .58125 5328 .05000 5403 .51875 5478 .987505029 .18125 5104 .65000 5179 .11875 5254 .58750 5329 .05625 5404 .52500 5479 .993755030 .18750 5105 .65625 5180 .12500 5255 .59375 5330 .06250 5405 .53125 5480 153.000005031 .19375 5106 .66250 5181 .13125 5256 .60000 5331 .06875 5406 .53750 5481 .006255032 .20000 5107 .66875 5182 .13750 5257 .60625 5332 .07500 5407 .54375 5482 .012505033 .20625 5108 .675005183 .14375 5258 .61250 5333 .08125 5408 .55000 5483 .018755034 .21250 5109 .68125 5184 .15000 5259 .61875 5334 .08750 5409 .55625 5484 .025005035 .21875 5110 .68750 5185 .15625 5260 .62500 5335 .09375 5410 .56250 5485 .031255036 .22500 5111 .693755186 .16250 5261 .63125 5336 .10000 5411 .56875 5486 .037505037 .23125 5112 .70000 5187 .16875 5262 .63750 5337 .10625 5412 .57500 5487 .043755038 .23750 5113 .70625 5188 .17500 5263 .64375 5338 .11250 5413 .58125 5488 .050005039 .24375 5114 .71250 5189 .18125 5264 .65000 5339 .11875 5414 .58750 5489 .056255040 150.25000 5115 .71875 5190 .18750 5265 .65625 5340 .12500 5415 .59375 5490 .062505041 .25625 5116 .72500 5191 .19375 5266 .66250 5341 .13125 5416 .60000 5491 .068755042 .26250 5117 .73125 5192.20000 5267 .66875 5342 .13750 5417 .60625 5492 .075005043 .26875 5118 .73750 5193 .20625 5268 .67500 5343 .14375 5418 .61250 5493 .081255044 .27500 5119 .74375 5194 .21250 5269 .68125 5344 .15000 5419 .61875 5494 .087505045 .28125 5120 150.75000 5195.21875 5270 .68750 5345 .15625 5420 .62500 5495 .093755046 .28750 5121 .75625 5196 .22500 5271 .69375 5346 .16250 5421 .63125 5496 .100005047 .29375 5122 .76250 5197 .23125 5272 .70000 5347 .16875 5422 .63750 5497 .106255048 .30000 5123 .76875 5198 .23750 5273 .70625 5348 .17500 5423 .64375 5498 .112505049 .30625 5124 .77500 5199 .24375 5274 .71250 5349 .18125 5424 .65000 5499 .118755050 .31250 5125 .78125 5200 151.25000 5275 .71875 5350 .18750 5425 .65625 5500 .125005051 .31875 5126 .78750 5201 .25625 5276 .72500 5351 .19375 5426 .66250 5501 .131255052 .32500 5127 .79375 5202 .26250 5277 .73125 5352 .20000 5427 .66875 5502 .137505053 .33125 5128 .80000 5203 .26875 5278 .73750 5353 .20625 5428 .67500 5503 .143755054 .33750 5129 .80625 5204 .27500 5279 .74375 5354 .21250 5429 .68125 5504 .150005055 .34375 5130 .81250 5205 .28125 5280 151.75000 5355 .21875 5430 .68750 5505 .156255056 .35000 5131 .81875 5206 .28750 5281 .75625 5356 .22500 5431 .69375 5506 .162505057 .35625 5132 .82500 5207 .29375 5282 .76250 5357 .23125 5432 .70000 5507 .168755058 .36250 5133 .83125 5208 .30000 5283 .76875 5358 .23750 5433 .70625 5508 .175005059 .36875 5134 .83750 5209 .30625 5284 .77500 5359 .24375 5434 .71250 5509 .181255060 .37500 5135 .84375 5210 .31250 5285 .781255360 152.25000 5435 .71875 5510 .187505061 .38125 5136 .85000 5211 .31875 5286 .78750 5361 .25625 5436 .72500 5511 .193755062 .38750 5137 .85625 5212 .32500 5287 .79375 5362 .26250 5437 .73125 5512 .200005063 .39375 5138 .86250 5213 .33125 5288 .800005363 .26875 5438 .73750 5513 .206255064 .40000 5139 .86875 5214 .33750 5289 .80625 5364 .27500 5439 .74375 5514 .212505065 .40625 5140 .87500 5215 .34375 5290 .81250 5365 .28125 5440 152.75000 5515 .218755066 .41250 5141 .88125 5216 .35000 5291 .81875 5366 .28750 5441 .75625 5516 .225005067 .41875 5142 .88750 5217 .35625 5292 .82500 5367 .29375 5442 .76250 5517 .231255068 .42500 5143 .89375 5218 .36250 5293 .83125 5368 .30000 5443 .76875 5518 .237505069 .43125 5144 .90000 5219 .36875 5294 .83750 5369.30625 5444 .77500 5519 .243755070 .43750 5145 .90625 5220 .37500 5295 .84375 5370 .31250 5445 .78125 5520 153.250005071 .44375 5146 .91250 5221 .38125 5296 .85000 5371 .31875 5446 .78750 5521 .256255072 .45000 5147 .91875 5222 .38750 5297 .85625 5372 .32500 5447 .79375 5522 .262505073 .45625 5148 .92500 5223 .39375 5298 .86250 5373 .33125 5448 .80000 5523 .268755074 .46250 5149 .93125 5224 .40000 5299 .86875 5374 .33750 5449 .80625 5524 .27500
4-2VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHzVT-3/160 Channel Designation Table: 150 to 174 MHz, 6.25 kHz Increments (continued)Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)5525 153.28125 5600 153.75000 5675 154.21875 5750 154.687505825 155.15625 5900 155.62500 5975 156.093755526 .28750 5601 .75625 5676 .22500 5751 .69375 5826 .16250 5901 .63125 5976 .100005527 .29375 5602 .76250 5677 .23125 5752 .70000 5827 .16875 5902 .63750 5977 .106255528 .30000 5603 .76875 5678 .23750 5753 .70625 5828 .17500 5903 .64375 5978 .112505529 .30625 5604 .77500 5679 .24375 5754 .71250 5829 .18125 5904 .65000 5979 .118755530 .31250 5605 .78125 5680 154.25000 5755 .71875 5830 .18750 5905 .65625 5980 .125005531 .31875 5606 .78750 5681 .25625 5756 .725005831 .19375 5906 .66250 5981 .131255532 .32500 5607 .79375 5682 .26250 5757 .73125 5832 .20000 5907 .66875 5982 .137505533 .33125 5608 .80000 5683 .26875 5758 .73750 5833 .20625 5908 .67500 5983 .143755534 .33750 5609 .80625 5684 .27500 5759 .743755834 .21250 5909 .68125 5984 .150005535 .34375 5610 .81250 5685 .28125 5760 154.75000 5835 .21875 5910 .68750 5985 .156255536 .35000 5611 .81875 5686 .28750 5761 .75625 5836 .22500 5911 .69375 5986 .162505537 .35625 5612 .82500 5687 .29375 5762 .762505837.23125 5912 .70000 5987 .168755538 .36250 5613 .83125 5688 .30000 5763 .76875 5838 .23750 5913 .70625 5988 .175005539 .36875 5614 .83750 5689 .30625 5764 .77500 5839 .24375 5914 .71250 5989 .181255540 .37500 5615 .84375 5690 .31250 5765 .78125 5840155.25000 5915 .71875 5990 .187505541 .38125 5616 .85000 5691 .31875 5766 .78750 5841 .25625 5916 .72500 5991 .193755542 .38750 5617 .85625 5692 .32500 5767 .79375 5842 .26250 5917 .73125 5992 .200005543 .39375 5618 .86250 5693 .33125 5768 .80000 5843.26875 5918 .73750 5993 .206255544 .40000 5619 .86875 5694 .33750 5769 .80625 5844 .27500 5919 .74375 5994 .212505545 .40625 5620 .87500 5695 .34375 5770 .81250 5845 .28125 5920 155.75000 5995 .218755546 .41250 5621 .88125 5696 .35000 5771 .81875 5846 .28750 5921 .75625 5996 .225005547 .41875 5622 .88750 5697 .35625 5772 .82500 5847 .29375 5922 .76250 5997 .231255548 .42500 5623 .89375 5698 .36250 5773 .83125 5848 .30000 5923 .76875 5998 .237505549 .43125 5624 .90000 5699 .36875 5774 .83750 5849 .30625 5924 .77500 5999 .243755550 .43750 5625 .90625 5700 .37500 5775 .84375 5850 .31250 5925 .78125 6000 156.250005551 .44375 5626 .91250 5701 .38125 5776 .85000 5851 .31875 5926 .78750 6001 .256255552 .45000 5627 .91875 5702 .38750 5777 .85625 5852 .325005927 .79375 6002 .262505553 .45625 5628 .92500 5703 .39375 5778 .86250 5853 .33125 5928 .80000 6003 .268755554 .46250 5629 .93125 5704 .40000 5779 .86875 5854 .33750 5929 .80625 6004 .275005555 .46875 5630 .93750 5705 .40625 5780 .87500 5855 .34375 5930 .81250 6005 .281255556 .47500 5631 .94375 5706 .41250 5781 .88125 5856 .35000 5931 .81875 6006 .287505557 .48125 5632 .95000 5707 .41875 5782 .88750 5857 .35625 5932 .82500 6007 .293755558 .48750 5633 .95625 5708 .42500 5783 .89375 5858 .36250 5933 .831256008 .300005559 .49375 5634 .96250 5709 .43125 5784 .90000 5859 .36875 5934 .83750 6009 .306255560 153.50000 5635 .96875 5710 .43750 5785 .90625 5860 .37500 5935 .84375 6010 .312505561 .50625 5636 .97500 5711 .44375 5786 .91250 5861 .38125 5936 .850006011 .318755562 .51250 5637 .98125 5712 .45000 5787 .91875 5862 .38750 5937 .85625 6012 .325005563 .51875 5638 .98750 5713 .45625 5788 .92500 5863 .39375 5938 .86250 6013 .331255564 .52500 5639 .99375 5714 .46250 5789 .93125 5864 .40000 5939 .868756014.337505565 .53125 5640 154.00000 5715 .46875 5790 .93750 5865 .40625 5940 .87500 6015 .343755566 .53750 5641 .00625 5716 .47500 5791 .94375 5866 .41250 5941 .88125 6016 .350005567 .54375 5642 .01250 5717 .48125 5792 .95000 5867 .41875 5942 .88750 6017.356255568 .55000 5643 .01875 5718 .48750 5793 .95625 5868 .42500 5943 .89375 6018 .362505569 .55625 5644 .02500 5719 .49375 5794 .96250 5869 .43125 5944 .90000 6019 .368755570 .56250 5645 .03125 5720 154.50000 5795 .96875 5870 .43750 5945 .90625 6020 .375005571 .56875 5646 .03750 5721 .50625 5796 .97500 5871 .44375 5946 .91250 6021 .381255572 .57500 5647 .04375 5722 .51250 5797 .98125 5872 .45000 5947 .91875 6022 .387505573 .58125 5648 .05000 5723 .51875 5798 .98750 5873 .45625 5948 .92500 6023 .393755574 .58750 5649 .05625 5724 .52500 5799 .99375 5874 .46250 5949 .93125 6024 .400005575 .59375 5650 .06250 5725 .53125 5800 155.00000 5875 .46875 5950 .93750 6025 .406255576 .60000 5651 .06875 5726 .53750 5801 .00625 5876 .47500 5951 .94375 6026 .412505577 .60625 5652 .07500 5727 .54375 5802 .01250 5877 .48125 5952 .95000 6027 .418755578 .61250 5653 .08125 5728 .55000 5803 .01875 5878 .48750 5953 .95625 6028 .425005579 .61875 5654 .08750 5729 .55625 5804 .02500 5879 .49375 5954 .96250 6029 .431255580 .62500 5655 .09375 5730 .56250 5805 .03125 5880 155.50000 5955 .96875 6030 .437505581 .63125 5656 .10000 5731 .56875 5806 .03750 5881 .50625 5956 .97500 6031 .443755582 .63750 5657 .10625 5732 .57500 5807 .04375 5882 .51250 5957 .98125 6032 .450005583 .64375 5658 .11250 5733 .58125 5808 .05000 5883 .51875 5958 .98750 6033 .456255584 .65000 5659 .11875 5734 .58750 5809 .05625 5884 .52500 5959 .99375 6034 .462505585 .65625 5660 .12500 5735 .59375 5810 .06250 5885 .53125 5960 156.00000 6035 .468755586 .66250 5661 .13125 5736 .60000 5811 .06875 5886 .53750 5961 .00625 6036 .475005587 .66875 5662 .13750 5737 .60625 5812 .07500 5887 .54375 5962 .01250 6037 .481255588 .67500 5663 .14375 5738 .61250 5813 .08125 5888 .55000 5963 .01875 6038 .487505589.68125 5664 .15000 5739 .61875 5814 .08750 5889 .55625 5964 .02500 6039 .493755590 .68750 5665 .15625 5740 .62500 5815 .09375 5890 .56250 5965 .03125 6040 156.500005591 .69375 5666 .16250 5741 .63125 5816 .10000 5891 .56875 5966 .03750 6041 .506255592 .70000 5667 .16875 5742 .63750 5817 .10625 5892 .57500 5967 .04375 6042 .512505593 .70625 5668 .17500 5743 .64375 5818 .11250 5893 .58125 5968 .05000 6043 .518755594 .71250 5669 .18125 5744 .65000 5819 .11875 5894 .58750 5969 .05625 6044 .525005595 .71875 5670 .18750 5745 .65625 5820 .12500 5895 .59375 5970 .06250 6045 .531255596 .72500 5671 .19375 5746 .66250 5821 .13125 5896 .60000 5971 .06875 6046 .537505597 .73125 5672 .20000 5747 .66875 5822 .13750 5897 .60625 5972 .07500 6047 .543755598 .73750 5673 .20625 5748 .67500 5823 .14375 5898 .61250 5973 .08125 6048 .550005599 .74375 5674 .21250 5749 .68125 5824 .15000 5899 .61875 5974 .08750 6049 .55625
VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHz4-3VT-3/160 Channel Designation Table: 150 to 174 MHz, 6.25 kHz Increments (continued)Chan.Freq. Chan. Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)6050 156.56250 6125 157.03125 6200 157.50000 6275 157.96875 6350 158.43750 6425 158.90625 6500 159.375006051 .56875 6126 .03750 6201 .50625 6276 .97500 6351 .44375 6426 .91250 6501 .381256052 .57500 6127 .04375 6202 .51250 6277 .98125 6352 .45000 6427 .91875 6502 .387506053 .58125 6128 .05000 6203 .51875 6278 .98750 6353 .45625 6428 .92500 6503 .393756054 .58750 6129 .05625 6204 .52500 6279 .99375 6354 .46250 6429 .93125 6504 .400006055 .59375 6130 .06250 6205 .53125 6280 158.00000 6355 .46875 6430 .93750 6505 .406256056 .60000 6131 .06875 6206 .53750 6281 .00625 6356 .47500 6431 .94375 6506 .412506057 .606256132 .07500 6207 .54375 6282 .01250 6357 .48125 6432 .95000 6507 .418756058 .61250 6133 .08125 6208 .55000 6283 .01875 6358 .48750 6433 .95625 6508 .425006059 .61875 6134 .08750 6209 .55625 6284 .02500 6359 .49375 6434 .96250 6509 .431256060 .625006135 .09375 6210 .56250 6285 .03125 6360 158.50000 6435 .96875 6510 .437506061 .63125 6136 .10000 6211 .56875 6286 .03750 6361 .50625 6436 .97500 6511 .443756062 .63750 6137 .10625 6212 .57500 6287 .04375 6362 .51250 6437 .98125 6512 .450006063 .643756138.11250 6213 .58125 6288 .05000 6363 .51875 6438 .98750 6513 .456256064 .65000 6139 .11875 6214 .58750 6289 .05625 6364 .52500 6439 .99375 6514 .462506065 .65625 6140 .12500 6215 .59375 6290 .06250 6365 .53125 6440 159.00000 6515 .468756066 .66250 6141.13125 6216 .60000 6291 .06875 6366 .53750 6441 .00625 6516 .475006067 .66875 6142 .13750 6217 .60625 6292 .07500 6367 .54375 6442 .01250 6517 .481256068 .67500 6143 .14375 6218 .61250 6293 .08125 6368 .55000 6443 .01875 6518 .487506069 .68125 6144.15000 6219 .61875 6294 .08750 6369 .55625 6444 .02500 6519 .493756070 .68750 6145 .15625 6220 .62500 6295 .09375 6370 .56250 6445 .03125 6520 159.500006071 .69375 6146 .16250 6221 .63125 6296 .10000 6371 .56875 6446 .03750 6521 .506256072 .70000 6147 .16875 6222 .63750 6297 .10625 6372 .57500 6447 .04375 6522 .512506073 .70625 6148 .17500 6223 .64375 6298 .11250 6373 .58125 6448 .05000 6523 .518756074 .71250 6149 .18125 6224 .65000 6299 .11875 6374 .58750 6449 .05625 6524 .525006075 .71875 6150 .18750 6225 .65625 6300 .12500 6375 .59375 6450 .06250 6525 .531256076 .72500 6151 .19375 6226 .66250 6301 .13125 6376 .60000 6451 .06875 6526 .537506077 .73125 6152 .20000 6227 .66875 6302 .13750 6377 .60625 6452 .07500 6527 .543756078 .73750 6153 .20625 6228 .67500 6303 .14375 6378 .61250 6453 .08125 6528 .550006079 .74375 6154 .21250 6229 .68125 6304 .15000 6379 .61875 6454 .08750 6529 .556256080 156.75000 6155 .21875 6230 .68750 6305 .15625 6380 .62500 6455 .09375 6530 .562506081 .75625 6156 .22500 6231 .69375 6306 .16250 6381 .63125 6456 .10000 6531 .568756082 .76250 6157 .23125 6232 .70000 6307 .16875 6382 .63750 6457 .10625 6532 .575006083 .76875 6158 .23750 6233 .70625 6308 .17500 6383 .64375 6458 .11250 6533 .581256084 .77500 6159 .24375 6234 .712506309 .18125 6384 .65000 6459 .11875 6534 .587506085 .78125 6160 157.25000 6235 .71875 6310 .18750 6385 .65625 6460 .12500 6535 .593756086 .78750 6161 .25625 6236 .72500 6311 .19375 6386 .66250 6461 .13125 6536 .600006087 .79375 6162 .26250 6237 .731256312 .20000 6387 .66875 6462 .13750 6537 .606256088 .80000 6163 .26875 6238 .73750 6313 .20625 6388 .67500 6463 .14375 6538 .612506089 .80625 6164 .27500 6239 .74375 6314 .21250 6389 .68125 6464 .15000 6539 .618756090 .81250 6165 .28125 6240 157.75000 6315 .21875 6390 .68750 6465 .15625 6540 .625006091 .81875 6166 .28750 6241 .75625 6316 .22500 6391 .69375 6466 .16250 6541 .631256092 .82500 6167 .29375 6242 .76250 6317 .23125 6392 .70000 6467 .16875 6542 .637506093 .83125 6168 .30000 6243 .76875 6318.23750 6393 .70625 6468 .17500 6543 .643756094 .83750 6169 .30625 6244 .77500 6319 .24375 6394 .71250 6469 .18125 6544 .650006095 .84375 6170 .31250 6245 .78125 6320 158.25000 6395 .71875 6470 .18750 6545 .656256096 .85000 6171 .31875 6246 .78750 6321 .25625 6396 .72500 6471 .19375 6546 .662506097 .85625 6172 .32500 6247 .79375 6322 .26250 6397 .73125 6472 .20000 6547 .668756098 .86250 6173 .33125 6248 .80000 6323 .26875 6398 .73750 6473 .20625 6548 .675006099 .86875 6174 .33750 6249 .80625 6324 .27500 6399 .74375 6474 .21250 6549 .681256100 .87500 6175 .34375 6250 .81250 6325 .28125 6400 158.75000 6475 .21875 6550 .687506101 .88125 6176 .35000 6251 .81875 6326 .28750 6401 .75625 6476 .22500 6551 .693756102 .88750 6177 .35625 6252 .82500 6327 .293756402 .76250 6477 .23125 6552 .700006103 .89375 6178 .36250 6253 .83125 6328 .30000 6403 .76875 6478 .23750 6553 .706256104 .90000 6179 .36875 6254 .83750 6329 .30625 6404 .77500 6479 .24375 6554 .712506105 .90625 6180 .37500 6255 .84375 6330 .312506405 .78125 6480 159.25000 6555 .718756106 .91250 6181 .38125 6256 .85000 6331 .31875 6406 .78750 6481 .25625 6556 .725006107 .91875 6182 .38750 6257 .85625 6332 .32500 6407 .79375 6482 .26250 6557 .731256108 .92500 6183 .39375 6258 .86250 6333 .331256408.80000 6483 .26875 6558 .737506109 .93125 6184 .40000 6259 .86875 6334 .33750 6409 .80625 6484 .27500 6559 .743756110 .93750 6185 .40625 6260 .87500 6335 .34375 6410 .81250 6485 .28125 6560 159.750006111 .94375 6186 .41250 6261 .88125 6336 .35000 6411.81875 6486 .28750 6561 .756256112 .95000 6187 .41875 6262 .88750 6337 .35625 6412 .82500 6487 .29375 6562 .762506113 .95625 6188 .42500 6263 .89375 6338 .36250 6413 .83125 6488 .30000 6563 .768756114 .96250 6189 .43125 6264 .90000 6339 .36875 6414.83750 6489 .30625 6564 .775006115 .96875 6190 .43750 6265 .90625 6340 .37500 6415 .84375 6490 .31250 6565 .781256116 .97500 6191 .44375 6266 .91250 6341 .38125 6416 .85000 6491 .31875 6566 .787506117 .98125 6192 .45000 6267 .91875 6342 .38750 6417 .85625 6492 .32500 6567 .793756118 .98750 6193 .45625 6268 .92500 6343 .39375 6418 .86250 6493 .33125 6568 .800006119 .99375 6194 .46250 6269 .93125 6344 .40000 6419 .86875 6494 .33750 6569 .806256120 157.00000 6195 .46875 6270 .93750 6345 .40625 6420 .87500 6495 .34375 6570 .812506121 .00625 6196 .47500 6271 .94375 6346 .41250 6421 .88125 6496 .35000 6571 .818756122 .01250 6197 .48125 6272 .95000 6347 .41875 6422 .88750 6497 .35625 6572 .825006123 .01875 6198 .48750 6273 .95625 6348 .42500 6423 .89375 6498 .36250 6573 .831256124 .02500 6199 .49375 6274 .96250 6349 .43125 6424 .90000 6499 .36875 6574 .83750
4-4VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHzVT-3/160 Channel Designation Table: 150 to 174 MHz, 6.25 kHz Increments (continued)Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq. Chan. Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)6575 159.84375 6650 160.31250 6725 160.78125 6800 161.25000 6875 161.71875 6950 162.18750 7025 162.656256576 .85000 6651 .31875 6726 .78750 6801 .25625 6876 .72500 6951 .19375 7026 .662506577 .85625 6652 .32500 6727 .79375 6802 .26250 6877 .73125 6952 .20000 7027 .668756578 .86250 6653 .33125 6728 .80000 6803 .26875 6878 .73750 6953 .20625 7028 .675006579 .86875 6654 .33750 6729 .80625 6804 .27500 6879 .74375 6954 .21250 7029 .681256580 .87500 6655 .34375 6730 .81250 6805 .28125 6880 161.75000 6955 .21875 7030 .687506581 .88125 6656 .35000 6731 .81875 6806 .28750 6881 .75625 6956 .22500 7031 .693756582 .88750 6657 .35625 6732 .82500 6807 .29375 6882 .762506957 .23125 7032 .700006583 .89375 6658 .36250 6733 .83125 6808 .30000 6883 .76875 6958 .23750 7033 .706256584 .90000 6659 .36875 6734 .83750 6809 .30625 6884 .77500 6959 .24375 7034 .712506585 .90625 6660 .37500 6735 .84375 6810 .31250 6885 .781256960 162.25000 7035 .718756586 .91250 6661 .38125 6736 .85000 6811 .31875 6886 .78750 6961 .25625 7036 .725006587 .91875 6662 .38750 6737 .85625 6812 .32500 6887 .79375 6962 .26250 7037 .731256588 .92500 6663 .39375 6738 .86250 6813 .33125 6888 .800006963.26875 7038 .737506589 .93125 6664 .40000 6739 .86875 6814 .33750 6889 .80625 6964 .27500 7039 .743756590 .93750 6665 .40625 6740 .87500 6815 .34375 6890 .81250 6965 .28125 7040 162.750006591 .94375 6666 .41250 6741 .88125 6816 .35000 6891 .81875 6966.28750 7041 .756256592 .95000 6667 .41875 6742 .88750 6817 .35625 6892 .82500 6967 .29375 7042 .762506593 .95625 6668 .42500 6743 .89375 6818 .36250 6893 .83125 6968 .30000 7043 .768756594 .96250 6669 .43125 6744 .90000 6819 .36875 6894 .83750 6969.30625 7044 .775006595 .96875 6670 .43750 6745 .90625 6820 .37500 6895 .84375 6970 .31250 7045 .781256596 .97500 6671 .44375 6746 .91250 6821 .38125 6896 .85000 6971 .31875 7046 .787506597 .98125 6672 .45000 6747 .91875 6822 .38750 6897 .85625 6972 .32500 7047 .793756598 .98750 6673 .45625 6748 .92500 6823 .39375 6898 .86250 6973 .33125 7048 .800006599 .99375 6674 .46250 6749 .93125 6824 .40000 6899 .86875 6974 .33750 7049 .806256600 160.00000 6675 .46875 6750 .93750 6825 .40625 6900 .87500 6975 .34375 7050 .812506601 .00625 6676 .47500 6751 .94375 6826 .41250 6901 .88125 6976 .35000 7051 .818756602 .01250 6677 .48125 6752 .95000 6827 .41875 6902 .88750 6977 .35625 7052 .825006603 .01875 6678 .48750 6753 .95625 6828 .42500 6903 .89375 6978 .36250 7053 .831256604 .02500 6679 .49375 6754 .96250 6829 .43125 6904 .90000 6979 .36875 7054 .837506605 .03125 6680 160.50000 6755 .96875 6830 .43750 6905 .90625 6980 .37500 7055 .843756606 .03750 6681 .50625 6756 .97500 6831 .44375 6906 .91250 6981 .38125 7056 .850006607 .04375 6682 .51250 6757 .98125 6832 .45000 6907 .91875 6982 .38750 7057 .856256608 .05000 6683 .51875 6758 .98750 6833 .45625 6908 .92500 6983 .39375 7058 .862506609 .05625 6684 .52500 6759 .99375 6834 .46250 6909 .93125 6984 .40000 7059 .868756610 .06250 6685 .53125 6760 161.00000 6835 .46875 6910 .93750 6985 .40625 7060 .875006611 .06875 6686 .53750 6761 .00625 6836 .47500 6911 .94375 6986 .41250 7061 .881256612 .07500 6687 .54375 6762 .01250 6837 .48125 6912 .95000 6987 .41875 7062 .887506613 .08125 6688 .55000 6763 .01875 6838 .48750 6913 .95625 6988 .42500 7063 .893756614 .08750 6689 .55625 6764 .02500 6839 .49375 6914 .96250 6989 .43125 7064 .900006615 .09375 6690 .56250 6765 .03125 6840 161.50000 6915 .96875 6990 .43750 7065 .906256616 .10000 6691 .56875 6766 .03750 6841 .50625 6916 .97500 6991 .44375 7066 .912506617 .10625 6692 .57500 6767 .04375 6842 .51250 6917 .98125 6992 .45000 7067 .918756618 .11250 6693 .58125 6768 .05000 6843 .51875 6918 .98750 6993 .45625 7068 .925006619 .11875 6694 .58750 6769 .05625 6844 .52500 6919 .99375 6994 .46250 7069 .931256620 .12500 6695 .59375 6770 .06250 6845 .53125 6920 162.00000 6995 .46875 7070 .937506621 .13125 6696 .60000 6771 .06875 6846 .53750 6921 .00625 6996 .47500 7071 .943756622 .13750 6697 .60625 6772 .07500 6847 .54375 6922 .01250 6997 .48125 7072 .950006623 .14375 6698 .61250 6773 .08125 6848 .55000 6923 .01875 6998 .48750 7073 .956256624 .15000 6699 .61875 6774 .08750 6849 .55625 6924 .02500 6999 .49375 7074 .962506625 .15625 6700 .62500 6775 .09375 6850 .56250 6925 .03125 7000 162.50000 7075 .968756626 .16250 6701 .63125 6776 .10000 6851 .56875 6926 .03750 7001 .50625 7076 .975006627 .16875 6702 .63750 6777 .10625 6852 .57500 6927 .04375 7002 .51250 7077 .981256628 .175006703 .64375 6778 .11250 6853 .58125 6928 .05000 7003 .51875 7078 .987506629 .18125 6704 .65000 6779 .11875 6854 .58750 6929 .05625 7004 .52500 7079 .993756630 .18750 6705 .65625 6780 .12500 6855 .59375 6930 .06250 7005 .53125 7080 163.000006631 .193756706 .66250 6781 .13125 6856 .60000 6931 .06875 7006 .53750 7081 .006256632 .20000 6707 .66875 6782 .13750 6857 .60625 6932 .07500 7007 .54375 7082 .012506633 .20625 6708 .67500 6783 .14375 6858 .61250 6933 .08125 7008 .55000 7083 .018756634 .212506709.68125 6784 .15000 6859 .61875 6934 .08750 7009 .55625 7084 .025006635 .21875 6710 .68750 6785 .15625 6860 .62500 6935 .09375 7010 .56250 7085 .031256636 .22500 6711 .69375 6786 .16250 6861 .63125 6936 .10000 7011 .56875 7086 .037506637 .23125 6712.70000 6787 .16875 6862 .63750 6937 .10625 7012 .57500 7087 .043756638 .23750 6713 .70625 6788 .17500 6863 .64375 6938 .11250 7013 .58125 7088 .050006639 .24375 6714 .71250 6789 .18125 6864 .65000 6939 .11875 7014 .58750 7089 .056256640 160.25000 6715.71875 6790 .18750 6865 .65625 6940 .12500 7015 .59375 7090 .062506641 .25625 6716 .72500 6791 .19375 6866 .66250 6941 .13125 7016 .60000 7091 .068756642 .26250 6717 .73125 6792 .20000 6867 .66875 6942 .13750 7017 .60625 7092 .075006643 .26875 6718 .73750 6793 .20625 6868 .67500 6943 .14375 7018 .61250 7093 .081256644 .27500 6719 .74375 6794 .21250 6869 .68125 6944 .15000 7019 .61875 7094 .087506645 .28125 6720 160.75000 6795 .21875 6870 .68750 6945 .15625 7020 .62500 7095 .093756646 .28750 6721 .75625 6796 .22500 6871 .69375 6946 .16250 7021 .63125 7096 .100006647 .29375 6722 .76250 6797 .23125 6872 .70000 6947 .16875 7022 .63750 7097 .106256648 .30000 6723 .76875 6798 .23750 6873 .70625 6948 .17500 7023 .64375 7098 .112506649 .30625 6724 .77500 6799 .24375 6874 .71250 6949 .18125 7024 .65000 7099 .11875
VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHz4-5VT-3/160 Channel Designation Table: 150 to 174 MHz, 6.25 kHz Increments (continued)Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)7100 163.12500 7175 163.59375 7250 164.06250 7325 164.53125 7400 165.00000 7475 165.46875 7550 165.937507101 .13125 7176 .60000 7251 .06875 7326 .53750 7401 .00625 7476 .47500 7551 .943757102 .13750 7177 .60625 7252 .07500 7327 .54375 7402 .01250 7477 .48125 7552 .950007103 .14375 7178 .61250 7253 .08125 7328 .55000 7403 .01875 7478 .48750 7553 .956257104 .15000 7179 .61875 7254 .08750 7329 .55625 7404 .02500 7479 .49375 7554 .962507105 .15625 7180 .62500 7255 .09375 7330 .56250 7405 .03125 7480 165.50000 7555 .968757106 .16250 7181 .63125 7256 .10000 7331 .56875 7406 .03750 7481 .50625 7556 .975007107 .16875 7182 .63750 7257 .10625 7332 .57500 7407 .04375 7482 .51250 7557 .981257108 .17500 7183 .643757258 .11250 7333 .58125 7408 .05000 7483 .51875 7558 .987507109 .18125 7184 .65000 7259 .11875 7334 .58750 7409 .05625 7484 .52500 7559 .993757110 .18750 7185 .65625 7260 .12500 7335 .59375 7410 .06250 7485 .53125 7560 166.000007111 .19375 7186 .662507261 .13125 7336 .60000 7411 .06875 7486 .53750 7561 .006257112 .20000 7187 .66875 7262 .13750 7337 .60625 7412 .07500 7487 .54375 7562 .012507113 .20625 7188 .67500 7263 .14375 7338 .61250 7413 .08125 7488 .55000 7563 .018757114 .21250 7189 .681257264.15000 7339 .61875 7414 .08750 7489 .55625 7564 .025007115 .21875 7190 .68750 7265 .15625 7340 .62500 7415 .09375 7490 .56250 7565 .031257116 .22500 7191 .69375 7266 .16250 7341 .63125 7416 .10000 7491 .56875 7566 .037507117 .23125 7192 .70000 7267.16875 7342 .63750 7417 .10625 7492 .57500 7567 .043757118 .23750 7193 .70625 7268 .17500 7343 .64375 7418 .11250 7493 .58125 7568 .050007119 .24375 7194 .71250 7269 .18125 7344 .65000 7419 .11875 7494 .58750 7569 .056257120 163.25000 7195 .71875 7270.18750 7345 .65625 7420 .12500 7495 .59375 7570 .062507121 .25625 7196 .72500 7271 .19375 7346 .66250 7421 .13125 7496 .60000 7571 .068757122 .26250 7197 .73125 7272 .20000 7347 .66875 7422 .13750 7497 .60625 7572 .075007123 .26875 7198 .73750 7273 .20625 7348 .67500 7423 .14375 7498 .61250 7573 .081257124 .27500 7199 .74375 7274 .21250 7349 .68125 7424 .15000 7499 .61875 7574 .087507125 .28125 7200 163.75000 7275 .21875 7350 .68750 7425 .15625 7500 .62500 7575 .093757126 .28750 7201 .75625 7276 .22500 7351 .69375 7426 .16250 7501 .63125 7576 .100007127 .29375 7202 .76250 7277 .23125 7352 .70000 7427 .16875 7502 .63750 7577 .106257128 .30000 7203 .76875 7278 .23750 7353 .70625 7428 .17500 7503 .64375 7578 .112507129 .30625 7204 .77500 7279 .24375 7354 .71250 7429 .18125 7504 .65000 7579 .118757130 .31250 7205 .78125 7280 164.25000 7355 .71875 7430 .18750 7505 .65625 7580 .125007131 .31875 7206 .78750 7281 .25625 7356 .72500 7431 .19375 7506 .66250 7581 .131257132 .32500 7207 .79375 7282 .26250 7357 .73125 7432 .20000 7507 .66875 7582 .137507133 .33125 7208 .80000 7283 .26875 7358 .73750 7433 .20625 7508 .67500 7583 .143757134 .33750 7209 .80625 7284 .27500 7359 .74375 7434 .21250 7509 .68125 7584 .150007135 .34375 7210 .81250 7285 .28125 7360 164.75000 7435 .21875 7510 .68750 7585 .156257136 .35000 7211 .81875 7286 .28750 7361 .75625 7436 .22500 7511 .69375 7586 .162507137 .35625 7212 .82500 7287 .29375 7362 .76250 7437 .23125 7512 .70000 7587 .168757138 .36250 7213 .83125 7288 .30000 7363 .768757438 .23750 7513 .70625 7588 .175007139 .36875 7214 .83750 7289 .30625 7364 .77500 7439 .24375 7514 .71250 7589 .181257140 .37500 7215 .84375 7290 .31250 7365 .78125 7440 165.25000 7515 .71875 7590 .187507141 .38125 7216 .85000 7291 .31875 7366 .78750 7441 .25625 7516 .72500 7591 .193757142 .38750 7217 .85625 7292 .32500 7367 .79375 7442 .26250 7517 .73125 7592 .200007143 .39375 7218 .86250 7293 .33125 7368 .80000 7443 .26875 7518 .73750 7593 .206257144 .40000 7219 .86875 7294 .33750 7369 .80625 7444.27500 7519 .74375 7594 .212507145 .40625 7220 .87500 7295 .34375 7370 .81250 7445 .28125 7520 165.75000 7595 .218757146 .41250 7221 .88125 7296 .35000 7371 .81875 7446 .28750 7521 .75625 7596 .225007147 .41875 7222 .88750 7297 .35625 7372 .82500 7447 .29375 7522 .76250 7597 .231257148 .42500 7223 .89375 7298 .36250 7373 .83125 7448 .30000 7523 .76875 7598 .237507149 .43125 7224 .90000 7299 .36875 7374 .83750 7449 .30625 7524 .77500 7599 .243757150 .43750 7225 .90625 7300 .37500 7375 .84375 7450 .31250 7525 .78125 7600 166.250007151 .44375 7226 .91250 7301 .38125 7376 .85000 7451 .31875 7526 .78750 7601 .256257152 .45000 7227 .91875 7302 .38750 7377 .85625 7452 .32500 7527 .79375 7602 .262507153 .45625 7228 .92500 7303 .39375 7378 .86250 7453 .331257528 .80000 7603 .268757154 .46250 7229 .93125 7304 .40000 7379 .86875 7454 .33750 7529 .80625 7604 .275007155 .46875 7230 .93750 7305 .40625 7380 .87500 7455 .34375 7530 .81250 7605 .281257156 .47500 7231 .94375 7306 .41250 7381 .88125 7456 .350007531 .81875 7606 .287507157 .48125 7232 .95000 7307 .41875 7382 .88750 7457 .35625 7532 .82500 7607 .293757158 .48750 7233 .95625 7308 .42500 7383 .89375 7458 .36250 7533 .83125 7608 .300007159 .49375 7234 .96250 7309 .43125 7384 .90000 7459 .36875 7534 .83750 7609 .306257160 163.50000 7235 .96875 7310 .43750 7385 .90625 7460 .37500 7535 .84375 7610 .312507161 .50625 7236 .97500 7311 .44375 7386 .91250 7461 .38125 7536 .85000 7611 .318757162 .51250 7237 .98125 7312 .45000 7387 .91875 7462 .38750 7537.85625 7612 .325007163 .51875 7238 .98750 7313 .45625 7388 .92500 7463 .39375 7538 .86250 7613 .331257164 .52500 7239 .99375 7314 .46250 7389 .93125 7464 .40000 7539 .86875 7614 .337507165 .53125 7240 164.00000 7315 .46875 7390 .93750 7465 .40625 7540.87500 7615 .343757166 .53750 7241 .00625 7316 .47500 7391 .94375 7466 .41250 7541 .88125 7616 .350007167 .54375 7242 .01250 7317 .48125 7392 .95000 7467 .41875 7542 .88750 7617 .356257168 .55000 7243 .01875 7318 .48750 7393 .95625 7468 .42500 7543 .89375 7618 .362507169 .55625 7244 .02500 7319 .49375 7394 .96250 7469 .43125 7544 .90000 7619 .368757170 .56250 7245 .03125 7320 164.50000 7395 .96875 7470 .43750 7545 .90625 7620 .375007171 .56875 7246 .03750 7321 .50625 7396 .97500 7471 .44375 7546 .91250 7621 .381257172 .57500 7247 .04375 7322 .51250 7397 .98125 7472 .45000 7547 .91875 7622 .387507173 .58125 7248 .05000 7323 .51875 7398 .98750 7473 .45625 7548 .92500 7623 .393757174 .58750 7249 .05625 7324 .52500 7399 .99375 7474 .46250 7549 .93125 7624 .40000
4-6VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHzVT-3/160 Channel Designation Table: 150 to 174 MHz, 6.25 kHz Increments (continued)Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num. (MHz)7625 166.40625 7700 166.87500 7775 167.34375 7850 167.81250 7925 168.28125 8000 168.75000 8075 169.218757626 .41250 7701 .88125 7776 .35000 7851 .81875 7926 .28750 8001 .75625 8076 .225007627 .41875 7702 .88750 7777 .35625 7852 .82500 7927 .29375 8002 .76250 8077 .231257628 .42500 7703 .89375 7778 .36250 7853 .83125 7928 .30000 8003 .76875 8078 .237507629 .43125 7704 .90000 7779 .36875 7854 .83750 7929 .30625 8004 .77500 8079 .243757630 .43750 7705 .90625 7780 .37500 7855 .84375 7930 .31250 8005 .78125 8080 169.250007631 .44375 7706 .91250 7781 .38125 7856 .85000 7931 .31875 8006 .78750 8081 .256257632 .45000 7707 .91875 7782 .38750 7857 .85625 7932 .32500 8007 .79375 8082 .262507633 .45625 7708 .92500 7783 .39375 7858 .86250 7933 .33125 8008 .800008083 .268757634 .46250 7709 .93125 7784 .40000 7859 .86875 7934 .33750 8009 .80625 8084 .275007635 .46875 7710 .93750 7785 .40625 7860 .87500 7935 .34375 8010 .81250 8085 .281257636 .47500 7711 .94375 7786 .41250 7861 .88125 7936 .35000 8011 .818758086 .287507637 .48125 7712 .95000 7787 .41875 7862 .88750 7937 .35625 8012 .82500 8087 .293757638 .48750 7713 .95625 7788 .42500 7863 .89375 7938 .36250 8013 .83125 8088 .300007639 .49375 7714 .96250 7789 .43125 7864 .90000 7939 .36875 8014 .83750 8089 .306257640 166.50000 7715 .96875 7790 .43750 7865 .90625 7940 .37500 8015 .84375 8090 .312507641 .50625 7716 .97500 7791 .44375 7866 .91250 7941 .38125 8016 .85000 8091 .318757642 .51250 7717 .98125 7792 .45000 7867 .91875 7942 .38750 8017 .85625 8092.325007643 .51875 7718 .98750 7793 .45625 7868 .92500 7943 .39375 8018 .86250 8093 .331257644 .52500 7719 .99375 7794 .46250 7869 .93125 7944 .40000 8019 .86875 8094 .337507645 .53125 7720 167.00000 7795 .46875 7870 .93750 7945 .40625 8020 .87500 8095.343757646 .53750 7721 .00625 7796 .47500 7871 .94375 7946 .41250 8021 .88125 8096 .350007647 .54375 7722 .01250 7797 .48125 7872 .95000 7947 .41875 8022 .88750 8097 .356257648 .55000 7723 .01875 7798 .48750 7873 .95625 7948 .42500 8023 .89375 8098 .362507649 .55625 7724 .02500 7799 .49375 7874 .96250 7949 .43125 8024 .90000 8099 .368757650 .56250 7725 .03125 7800 167.50000 7875 .96875 7950 .43750 8025 .90625 8100 .375007651 .56875 7726 .03750 7801 .50625 7876 .97500 7951 .44375 8026 .91250 8101 .381257652 .57500 7727 .04375 7802 .51250 7877 .98125 7952 .45000 8027 .91875 8102 .387507653 .58125 7728 .05000 7803 .51875 7878 .98750 7953 .45625 8028 .92500 8103 .393757654 .58750 7729 .05625 7804 .52500 7879 .99375 7954 .46250 8029 .93125 8104 .400007655 .59375 7730 .06250 7805 .53125 7880 168.00000 7955 .46875 8030 .93750 8105 .406257656 .60000 7731 .06875 7806 .53750 7881 .00625 7956 .47500 8031 .94375 8106 .412507657 .60625 7732 .07500 7807 .54375 7882 .01250 7957 .48125 8032 .95000 8107 .418757658 .61250 7733 .08125 7808 .55000 7883 .01875 7958 .48750 8033 .95625 8108 .425007659 .61875 7734 .08750 7809 .55625 7884 .02500 7959 .49375 8034 .96250 8109 .431257660 .62500 7735 .09375 7810 .56250 7885 .03125 7960 168.50000 8035 .96875 8110 .437507661.63125 7736 .10000 7811 .56875 7886 .03750 7961 .50625 8036 .97500 8111 .443757662 .63750 7737 .10625 7812 .57500 7887 .04375 7962 .51250 8037 .98125 8112 .450007663 .64375 7738 .11250 7813 .58125 7888 .05000 7963 .51875 8038 .98750 8113 .456257664 .650007739 .11875 7814 .58750 7889 .05625 7964 .52500 8039 .99375 8114 .462507665 .65625 7740 .12500 7815 .59375 7890 .06250 7965 .53125 8040 169.00000 8115 .468757666 .66250 7741 .13125 7816 .60000 7891 .06875 7966 .53750 8041 .00625 8116 .475007667 .66875 7742 .13750 7817 .60625 7892 .07500 7967 .54375 8042 .01250 8117 .481257668 .67500 7743 .14375 7818 .61250 7893 .08125 7968 .55000 8043 .01875 8118 .487507669 .68125 7744 .15000 7819 .61875 7894 .08750 7969 .55625 8044 .02500 8119 .493757670 .68750 7745.15625 7820 .62500 7895 .09375 7970 .56250 8045 .03125 8120 169.500007671 .69375 7746 .16250 7821 .63125 7896 .10000 7971 .56875 8046 .03750 8121 .506257672 .70000 7747 .16875 7822 .63750 7897 .10625 7972 .57500 8047 .04375 8122 .512507673 .70625 7748 .17500 7823 .64375 7898 .11250 7973 .58125 8048 .05000 8123 .518757674 .71250 7749 .18125 7824 .65000 7899 .11875 7974 .58750 8049 .05625 8124 .525007675 .71875 7750 .18750 7825 .65625 7900 .12500 7975 .59375 8050 .06250 8125 .531257676 .72500 7751 .19375 7826 .66250 7901 .13125 7976 .60000 8051 .06875 8126 .537507677 .73125 7752 .20000 7827 .66875 7902 .13750 7977 .60625 8052 .07500 8127 .543757678 .73750 7753 .20625 7828 .67500 7903 .14375 7978 .61250 8053 .08125 8128 .550007679 .74375 7754 .21250 7829 .68125 7904 .15000 7979 .61875 8054 .08750 8129 .556257680 166.75000 7755 .21875 7830 .68750 7905 .15625 7980 .62500 8055 .09375 8130 .562507681 .75625 7756 .22500 7831 .69375 7906 .16250 7981 .63125 8056 .10000 8131 .568757682 .76250 7757 .231257832 .70000 7907 .16875 7982 .63750 8057 .10625 8132 .575007683 .76875 7758 .23750 7833 .70625 7908 .17500 7983 .64375 8058 .11250 8133 .581257684 .77500 7759 .24375 7834 .71250 7909 .18125 7984 .65000 8059 .11875 8134 .587507685 .78125 7760 167.250007835.71875 7910 .18750 7985 .65625 8060 .12500 8135 .593757686 .78750 7761 .25625 7836 .72500 7911 .19375 7986 .66250 8061 .13125 8136 .600007687 .79375 7762 .26250 7837 .73125 7912 .20000 7987 .66875 8062 .13750 8137 .606257688 .80000 7763 .26875 7838.73750 7913 .20625 7988 .67500 8063 .14375 8138 .612507689 .80625 7764 .27500 7839 .74375 7914 .21250 7989 .68125 8064 .15000 8139 .618757690 .81250 7765 .28125 7840 167.75000 7915 .21875 7990 .68750 8065 .15625 8140 .625007691 .81875 7766 .28750 7841.75625 7916 .22500 7991 .69375 8066 .16250 8141 .631257692 .82500 7767 .29375 7842 .76250 7917 .23125 7992 .70000 8067 .16875 8142 .637507693 .83125 7768 .30000 7843 .76875 7918 .23750 7993 .70625 8068 .17500 8143 .643757694 .83750 7769 .30625 7844 .77500 7919 .24375 7994 .71250 8069 .18125 8144 .650007695 .84375 7770 .31250 7845 .78125 7920 168.25000 7995 .71875 8070 .18750 8145 .656257696 .85000 7771 .31875 7846 .78750 7921 .25625 7996 .72500 8071 .19375 8146 .662507697 .85625 7772 .32500 7847 .79375 7922 .26250 7997 .73125 8072 .20000 8147 .668757698 .86250 7773 .33125 7848 .80000 7923 .26875 7998 .73750 8073 .20625 8148 .675007699 .86875 7774 .33750 7849 .80625 7924 .27500 7999 .74375 8074 .21250 8149 .68125
VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHz4-7VT-3/160 Channel Designation Table: 150 to 174 MHz, 6.25 kHz Increments (continued)Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)8150 169.68750 8225 170.15625 8300 170.62500 8375 171.09375 8450 171.56250 8525 172.03125 8600 172.500008151 .69375 8226 .16250 8301 .63125 8376 .10000 8451 .56875 8526 .03750 8601 .506258152 .70000 8227 .16875 8302 .63750 8377 .10625 8452 .57500 8527 .04375 8602 .512508153 .70625 8228 .17500 8303 .64375 8378 .11250 8453 .58125 8528 .05000 8603 .518758154 .71250 8229 .18125 8304 .65000 8379 .11875 8454 .58750 8529 .05625 8604 .525008155 .71875 8230 .18750 8305 .65625 8380 .12500 8455 .59375 8530 .06250 8605 .531258156 .72500 8231 .19375 8306 .66250 8381 .13125 8456 .60000 8531 .06875 8606 .537508157 .73125 8232 .20000 8307 .66875 8382 .13750 8457 .60625 8532 .07500 8607 .543758158 .73750 8233 .20625 8308 .67500 8383 .14375 8458 .61250 8533 .08125 8608 .550008159 .74375 8234 .21250 8309 .68125 8384 .15000 8459 .61875 8534 .08750 8609 .556258160 169.75000 8235 .21875 8310 .68750 8385 .15625 8460 .62500 8535 .09375 8610 .562508161 .75625 8236 .22500 8311 .69375 8386 .16250 8461 .63125 8536 .10000 8611 .568758162 .76250 8237 .23125 8312 .700008387 .16875 8462 .63750 8537 .10625 8612 .575008163 .76875 8238 .23750 8313 .70625 8388 .17500 8463 .64375 8538 .11250 8613 .581258164 .77500 8239 .24375 8314 .71250 8389 .18125 8464 .65000 8539 .11875 8614 .587508165 .78125 8240 170.25000 8315 .718758390.18750 8465 .65625 8540 .12500 8615 .593758166 .78750 8241 .25625 8316 .72500 8391 .19375 8466 .66250 8541 .13125 8616 .600008167 .79375 8242 .26250 8317 .73125 8392 .20000 8467 .66875 8542 .13750 8617 .606258168 .80000 8243 .26875 8318 .73750 8393.20625 8468 .67500 8543 .14375 8618 .612508169 .80625 8244 .27500 8319 .74375 8394 .21250 8469 .68125 8544 .15000 8619 .618758170 .81250 8245 .28125 8320 170.75000 8395 .21875 8470 .68750 8545 .15625 8620 .625008171 .81875 8246 .28750 8321 .75625 8396.22500 8471 .69375 8546 .16250 8621 .631258172 .82500 8247 .29375 8322 .76250 8397 .23125 8472 .70000 8547 .16875 8622 .637508173 .83125 8248 .30000 8323 .76875 8398 .23750 8473 .70625 8548 .17500 8623 .643758174 .83750 8249 .30625 8324 .77500 8399 .24375 8474 .71250 8549 .18125 8624 .650008175 .84375 8250 .31250 8325 .78125 8400 171.25000 8475 .71875 8550 .18750 8625 .656258176 .85000 8251 .31875 8326 .78750 8401 .25625 8476 .72500 8551 .19375 8626 .662508177 .85625 8252 .32500 8327 .79375 8402 .26250 8477 .73125 8552 .20000 8627 .668758178 .86250 8253 .33125 8328 .80000 8403 .26875 8478 .73750 8553 .20625 8628 .675008179 .86875 8254 .33750 8329 .80625 8404 .27500 8479 .74375 8554 .21250 8629 .681258180 .87500 8255 .34375 8330 .81250 8405 .28125 8480 171.75000 8555 .21875 8630 .687508181 .88125 8256 .35000 8331 .81875 8406 .28750 8481 .75625 8556 .22500 8631 .693758182 .88750 8257 .35625 8332 .82500 8407 .29375 8482 .76250 8557 .23125 8632 .700008183 .89375 8258 .36250 8333 .83125 8408 .30000 8483 .76875 8558 .23750 8633 .706258184 .90000 8259 .36875 8334 .83750 8409 .30625 8484 .77500 8559 .24375 8634 .712508185 .90625 8260 .37500 8335 .84375 8410 .31250 8485 .78125 8560 172.25000 8635 .718758186 .91250 8261 .38125 8336 .85000 8411 .31875 8486.78750 8561 .25625 8636 .725008187 .91875 8262 .38750 8337 .85625 8412 .32500 8487 .79375 8562 .26250 8637 .731258188 .92500 8263 .39375 8338 .86250 8413 .33125 8488 .80000 8563 .26875 8638 .737508189 .93125 8264 .40000 8339 .86875 8414 .33750 8489 .806258564 .27500 8639 .743758190 .93750 8265 .40625 8340 .87500 8415 .34375 8490 .81250 8565 .28125 8640 172.750008191 .94375 8266 .41250 8341 .88125 8416 .35000 8491 .81875 8566 .28750 8641 .756258192 .95000 8267 .41875 8342 .88750 8417 .35625 8492 .82500 8567 .29375 8642 .762508193 .95625 8268 .42500 8343 .89375 8418 .36250 8493 .83125 8568 .30000 8643 .768758194 .96250 8269 .43125 8344 .90000 8419 .36875 8494 .83750 8569 .30625 8644 .775008195 .96875 8270 .43750 8345 .90625 8420 .37500 8495 .84375 8570.31250 8645 .781258196 .97500 8271 .44375 8346 .91250 8421 .38125 8496 .85000 8571 .31875 8646 .787508197 .98125 8272 .45000 8347 .91875 8422 .38750 8497 .85625 8572 .32500 8647 .793758198 .98750 8273 .45625 8348 .92500 8423 .39375 8498 .86250 8573.33125 8648 .800008199 .99375 8274 .46250 8349 .93125 8424 .40000 8499 .86875 8574 .33750 8649 .806258200 170.00000 8275 .46875 8350 .93750 8425 .40625 8500 .87500 8575 .34375 8650 .812508201 .00625 8276 .47500 8351 .94375 8426 .41250 8501 .88125 8576 .35000 8651 .818758202 .01250 8277 .48125 8352 .95000 8427 .41875 8502 .88750 8577 .35625 8652 .825008203 .01875 8278 .48750 8353 .95625 8428 .42500 8503 .89375 8578 .36250 8653 .831258204 .02500 8279 .49375 8354 .96250 8429 .43125 8504 .90000 8579 .36875 8654 .837508205 .03125 8280 170.50000 8355 .96875 8430 .43750 8505 .90625 8580 .37500 8655 .843758206 .03750 8281 .50625 8356 .97500 8431 .44375 8506 .91250 8581 .38125 8656 .850008207 .04375 8282 .51250 8357 .98125 8432 .45000 8507 .91875 8582 .387508657 .856258208 .05000 8283 .51875 8358 .98750 8433 .45625 8508 .92500 8583 .39375 8658 .862508209 .05625 8284 .52500 8359 .99375 8434 .46250 8509 .93125 8584 .40000 8659 .868758210 .06250 8285 .53125 8360 171.00000 8435 .46875 8510 .93750 8585 .406258660.875008211 .06875 8286 .53750 8361 .00625 8436 .47500 8511 .94375 8586 .41250 8661 .881258212 .07500 8287 .54375 8362 .01250 8437 .48125 8512 .95000 8587 .41875 8662 .887508213 .08125 8288 .55000 8363 .01875 8438 .48750 8513 .95625 8588 .42500 8663.893758214 .08750 8289 .55625 8364 .02500 8439 .49375 8514 .96250 8589 .43125 8664 .900008215 .09375 8290 .56250 8365 .03125 8440 171.50000 8515 .96875 8590 .43750 8665 .906258216 .10000 8291 .56875 8366 .03750 8441 .50625 8516 .97500 8591 .44375 8666.912508217 .10625 8292 .57500 8367 .04375 8442 .51250 8517 .98125 8592 .45000 8667 .918758218 .11250 8293 .58125 8368 .05000 8443 .51875 8518 .98750 8593 .45625 8668 .925008219 .11875 8294 .58750 8369 .05625 8444 .52500 8519 .99375 8594 .46250 8669 .931258220 .12500 8295 .59375 8370 .06250 8445 .53125 8520 172.00000 8595 .46875 8670 .937508221 .13125 8296 .60000 8371 .06875 8446 .53750 8521 .00625 8596 .47500 8671 .943758222 .13750 8297 .60625 8372 .07500 8447 .54375 8522 .01250 8597 .48125 8672 .950008223 .14375 8298 .61250 8373 .08125 8448 .55000 8523 .01875 8598 .48750 8673 .956258224 .15000 8299 .61875 8374 .08750 8449 .55625 8524 .02500 8599 .49375 8674 .96250
4-8VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHzVT-3/160 Channel Designation Table: 150 to 174 MHz, 6.25 kHz Increments (continued)Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Chan.Freq.Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)Num.(MHz)8675 172.96875 8750 173.43750 8825 173.906258676 .97500 8751 .44375 8826 .912508677 .98125 8752 .45000 8827 .918758678 .98750 8753 .45625 8828 .925008679 .99375 8754 .46250 8829 .931258680 173.00000 8755 .46875 8830 .937508681 .00625 8756 .47500 8831 .943758682 .01250 8757 .48125 8832 .950008683 .01875 8758 .48750 8833 .956258684 .025008759 .49375 8834 .962508685 .03125 8760 173.50000 8835 .968758686 .03750 8761 .50625 8836 .975008687 .04375 8762 .51250 8837 .981258688 .05000 8763 .51875 8838 .987508689 .05625 8764 .52500 8839 .993758690 .06250 8765 .53125 8840 174.000008691 .06875 8766 .537508692 .07500 8767 .543758693 .08125 8768 .550008694 .08750 8769 .556258695 .09375 8770 .562508696 .10000 8771 .568758697 .10625 8772 .575008698 .11250 8773 .581258699 .11875 8774 .587508700 .12500 8775 .593758701 .13125 8776 .600008702 .13750 8777 .606258703 .14375 8778 .612508704 .15000 8779 .618758705 .15625 8780 .625008706 .16250 8781 .631258707 .16875 8782 .637508708 .17500 8783 .643758709 .18125 8784 .650008710 .18750 8785 .656258711 .19375 8786 .662508712 .20000 8787.668758713 .20625 8788 .675008714 .21250 8789 .681258715 .21875 8790 .687508716 .22500 8791 .693758717 .23125 8792 .700008718 .23750 8793 .706258719 .24375 8794 .712508720 173.25000 8795 .718758721 .25625 8796 .725008722 .26250 8797 .731258723 .26875 8798 .737508724 .27500 8799 .743758725 .28125 8800 173.750008726 .28750 8801 .756258727 .29375 8802 .762508728 .30000 8803 .768758729 .30625 8804 .775008730 .31250 8805 .781258731 .31875 8806 .787508732 .32500 8807 .793758733 .33125 8808 .800008734 .33750 8809 .806258735 .34375 8810 .812508736 .35000 8811 .818758737 .35625 8812 .825008738 .36250 8813 .831258739 .36875 8814 .837508740 .37500 8815 .843758741 .38125 8816 .850008742 .38750 8817 .856258743 .39375 8818 .862508744 .400008819 .868758745 .40625 8820 .875008746 .41250 8821 .881258747 .41875 8822 .887508748 .42500 8823 .893758749 .43125 8824 .90000
VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHz5-15REVISION HISTORYISSUE DATE REVISION 1 May 98 • Issue 1
5-2VHF Transmitter Channel Designation Tables VT-3 132 - 174 MHzThis Page Intentionally Left Blank.

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