Park Air Systems BT6M VHF Airband mobile transceiver User Manual PAE Header

Park Air Systems Limited VHF Airband mobile transceiver PAE Header

Exhibit D User guide

T6M Service ManualIssue 1PARK AIR ELECTRONICS LTDNORTHFIELDSMARKET DEEPINGPETERBOROUGHPE6 8UETEL:(01778) 345434FAX:(01778) 342877
T6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0 Page iCopyright Information© 2000 Park Air ElectronicsAll rights reserved. No part of this publication may be reproduced,transmitted, transcribed, or stored in a retrieval system, or translated intoany language without the written permission of Park Air Electronics. Nopart of any copyrighted computer programs contained in the productsreferred to in this manual may be copied or reproduced without the expresswritten consent of Park Air Electronics.Park Air Electronics reserves the right to change the products described inthis manual without prior notice. is a trademark of Park Air Electronics. is a trademark of Intek Global CorporationIBM and PC are trademarks of IBM Inc.I2C is a trademark of PhilipsFederal Communications Commission (FCC) Regulations♦ This device complies with Part 15 of the FCC Rules. Operation issubject to the condition that this device does not cause harmfulinterference.♦ You are required to obtain a station license before transmitting fromyour mobile equipment.♦ This equipment is only licensed for operation on 25 kHz channelspacing. Operation on 8.33 kHz channel spacing is restricted toEuropean customers.♦ The mobile transmitter power output must not exceed the outputnecessary for satisfactory technical operation taking account of localconditions and the area to be covered.♦ The mobile transmitter frequency and parameters should be checked byauthorised service personnel before use, and at least yearly thereafter.
T6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0Page iiSafety Information♦ DO NOT operate this equipment with the antenna close to or touchingeyes, face, or exposed body parts.♦ KEEP any mobile equipment containing a transmitter out of reach ofchildren.♦ AVOID holding the transmit (PTT) switch in the ‘ON’ position when notcommunicating.♦ DO NOT operate equipment at filling stations.♦ DO NOT operate equipment in vicinity ofexplosives or explosive atmospheres (e.g. in ablasting quarry).♦ The Power Amplifier Module used in these mobileradios contains beryllium oxide, which is extremelytoxic. In the unlikely event of coming into contactwith beryllium oxide, wash the affected areathoroughly with soap and water. If the skin isbroken obtain medical assistance. If there is eyecontact, wash for 15 minutes with running water,including under the eyelids and seek medicalattention. If ingested or inhaled, seek medicalattention immediately.Repairs, Modifications and Maintenance♦ If any operational difficulties arise while using this product, report themto authorized service personnel as soon as possible.♦ This system contains no user serviceable parts. Unauthorizedadjustments or modifications will void the warranty and may lead toemissions outside FCC limits.♦ DO NOT connect an external RF power amplifier to this equipment.Patent Information♦ The Linear Modulation techniques described in this publication aresubject to Patents issued to the British Technology Group (BTG) andLinear Modulation Technology (LMT)
T6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0 Page iii♦ Patent No’s are: BTG – UK 2161661, 2163326; US 4691375, 4679243:LMT - UK 2243058, 2274231, 2272589, 2293935: EU 0447237,0725495, 0598585, 0648012, 0706259: US 5249202, 5381108,5507017, 5623226.
T6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0Page ivTable Of ContentsSection1 INTRODUCTION2 SPECIFICATION3 EQUIPMENT DESCRIPTION4 INSTALLATION5 OPERATION6 PERFORMANCE TESTING7 DETAILED CIRCUIT DESCRIPTION8 CIRCUIT DIAGRAMS9 BOARD LAYOUTS10 GENERAL ASSEMBLIES11 PARTS LIST12 ACCESSORIES AND LEADS13 LOOMS
T6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0 Page vAmendment ScheduleAmendments to this manual will be issued to incorporate changes or detail additionalinformation. Amended pages will be identified by the amendment date and number, which willbe shown at the foot of the page. Record incorporation of amendments to this manual on thispage.If a new issue of this manual is made all amendments will be incorporated.Date Amdt. No. Date Incorporated Reason for ChangeIf you find any errors or omissions in this manual, or you have any suggestions forimprovements please write to the address shown on the front page.
INTRODUCTIONT6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0 Page 1-11 INTRODUCTIONThe Park Air Electronics (PAE) mobile transceiver Type T6M is a multi-channel VHF AM equipment operating in the frequency range 118 to 137 MHzwith a bandwidth of 8.33 or 25 kHz. The transceiver is designed for vehiclemounting via a bracket, usually around the dash board area. The equipment,which operates from a +13.2 volt, is supplied with mounting bracket and plugin microphone.The transceiver provides a nominal 8 watt output.The required frequencies, priority frequencies and scan facilities are normallyprogrammed, to the user’s requirements, during manufacture or by theequipment supplier. If a user wishes to programme the equipment, then diskbased programming software and a programming lead can be supplied byPAE.
SPECIFICATIONST6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0 Page 2-12. T6M Series SpecificationsThe following specifications are intended for testing and servicing the mobileradio. Specifications are subject to change without notice.2.1 GeneralAir Interface NoneOperating Mode Single Frequency SimplexFrequency RangeReceive 118 - 137 MHzTransmit 118 - 137 MHzChannel Bandwidth 25 kHz and 8.33 kHz.Channel Increment 8.33 kHzInput Voltage 13.2 VDC nominal (10.8 V to 18 V),negative groundMax Receive Current 2AMax Off Current 100mAAudio Output 4W into 4ohm external speaker(<10%THD)Temperature RangeNormal +15°C to +35°COperating -20°C to +55°CStorage -40°C to +85°CDimensionsWidth 177 mm (6.95”)Depth 228 mm (8.98”)Height 50 mm (1.95”)Weight 1.75 kg (±0.1kg)Approvals CE, SERPS, MOPSEN300 279 Ed 2EN 300 6762.2 ReceiverSensitivity -100dBmSelectivity 50dB @ 8.33kHz, 60dB @ 25kHzIntermodulation 60dBSpurious and Image Rejection 75dBAudio Power Output 4 Watts.Distortion <10% THDRF Input Impedance 50 ohms
SPECIFICATIONST6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0Page 2-22.3 TransmitterRF Output Power, Nominal 8 WattsSpurious -46dBmHarmonics -36dBmAudio Modulation AMRF Load Impedance 50 ohmsFrequency Stability ± 1.0ppm (normal)
EQUIPMENT DESCRIPTIONT6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0 Page 3-13. Section Index3. Section Index 3-13.1 General 3-23.2 T6M Series Mobile Front panel 3-23.3 Mobile Radio Programming 3-23.3.1 Programming Interface Lead 3-23.3.2 Programming Software 3-2
EQUIPMENT DESCRIPTIONT6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0Page 3-23.1 GeneralThe T6M series mobile radio is designed to operate in single frequencysimplex mode on the International Air Band allocation (118-137 MHz mobiletransmit and receive).The mobile radio is field programmable, allowing it to be customized both forthe frequency allocation for which it is intended, and for the particular user.Refer to the built in help facilities of the Mobile Programming Software formore information.The mobile radio is designed to be mounted in the driver’s compartment of aroad vehicle. It can withstand the vibration, shock and extremes oftemperature typically encountered in this environment. The mobile radio’sbasic construction consists of a die-cast alloy chassis, and an injectionmolded ABS front panel.3.2 T6M Series Mobile Front panelTXBUSYSCNSQLVOLSELCHPRIPOWER3.3 Mobile Radio ProgrammingAs well as the standard accessories supplied with the mobile radio (listed inthe installation section of this manual), the following additional accessoriescan be used:3.3.1 Programming Interface LeadFor programming purposes the microphone connector on the mobile radio isconnected directly to the serial port of a PC using a special programminginterface lead.3.3.2 Programming SoftwareThe personality of the mobile radio must be programmed before it can beput into service in a system. This is normally done at the time ofmanufacture or by the equipment supplier. Special programming software is
EQUIPMENT DESCRIPTIONT6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0 Page 3-3available for this purpose, which runs on a PC. The software is available on3.5” floppy disks. The software contains built in help features.
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INSTALLATIONT6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0 Page 4-14. Section Index4.1General...................................................................................................................... 4-24.1.1 Scope of Instructions................................................................................... 4-24.1.2 Tools and Test Equipment Required. .......................................................... 4-24.1.3 Unpacking ................................................................................................... 4-24.1.4 Mobile Radio Programming ......................................................................... 4-24.1.5 Power Source.............................................................................................. 4-24.1.6 Selecting a Mounting Location..................................................................... 4-34.2Mobile Radio Installation............................................................................................ 4-34.2.1 Mounting Mobile Radio, Microphone and Speaker....................................... 4-34.3Mobile Unit Connections ............................................................................................ 4-44.4Power Cable Installation ............................................................................................ 4-44.5Antenna Connection .................................................................................................. 4-64.5.1 Location....................................................................................................... 4-64.5.2 Fitting Antenna to Fiberglass Vehicles......................................................... 4-74.5.3 Antenna Feeder........................................................................................... 4-74.5.4 Antenna DC Check...................................................................................... 4-74.6Loudspeaker Connection ........................................................................................... 4-74.7Serviceability Check - General Operation .................................................................. 4-74.8Troubleshooting Flow Chart - General Operation....................................................... 4-8Figure 4-1 Mobile Radio Mounting Bracket - Dimensions 4-3Figure 4-2 Mobile Connections 4-4Figure 4-3 Antenna Locations 4-6Figure 4-4 Antenna Radiation Patterns 4-6Figure 4-5 - T6M Series General Troubleshooting Flow Chart 4-9
INSTALLATIONT6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0Page 4-24.1 General4.1.1 Scope of InstructionsThe following installation instructions are a guide to installing the mobile radio. The use of themounting hardware is described and the required electrical connections are shown. Aserviceability check is described with fault-finding information.4.1.2 Tools and Test Equipment Required.Power drillHole cutterCross head screwdriversEmery paperConnectorsCrimp toolsWire cuttersEarthing braidTorx screwdriver M3 (No. 10)Torx screwdriver M2.5 (No. 8)Hex nut spinner M3 (5.5mm)Hex nut spinner M2.5 (5mm)IC extraction tool CEKA T2371 or equivalentRF Power & VSWR Meter Bird 4391 or equivalentProgramming interface lead Special PC to mobile microphone socket lead (part number LM030400055)4.1.3 UnpackingUnpack the mobile radio install kit and check the contents against the packing list enclosedwith the mobile.4.1.4 Mobile Radio ProgrammingTo operate on the system, the mobile radio requires certain “personality” information to beentered into memoryThe mobile radio must therefore have been programmed before it can be placed in service.This is normally done at the time of manufacture or by the equipment supplier. To programthe mobile radio, use the Mobile Programming Software.4.1.5 Power SourceThe mobile radio is designed to operate from a 13.2 VDC nominal, negative ground electricalsystem. This type of electrical system has the negative battery terminal connected directly tothe vehicle chassis. For vehicles with a 24 V battery or where there must be isolation betweenthe battery and the equipment, a suitable DC-DC converter should be used.
INSTALLATIONT6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0 Page 4-34.1.6 Selecting a Mounting LocationChoose a safe and sensible location for the mobile radio and mounting bracket, ensuring thatthe installation:♦ Is easy to operate when seat belts are worn.♦ Does not inconvenience driver or passengers when seated, or when entering or exiting thevehicle.♦ Will not injure occupants if the vehicle suffers an impact.♦ Does not interrupt the airflow from heater or air-conditioning vents.Suitable mounting places include the dash, console or transmission hump.Avoid mounting in small enclosed spaces (e.g. glove lockers). To prevent excessive self-heating, the mobile radio should have an unobstructed airflow space of at least 20 mm at therear.4.2 Mobile Radio Installation4.2.1 Mounting Mobile Radio, Microphone and SpeakerCheck that the mobile mounting bracket fixing screws will not damage any cables, brake orfuel lines when they are fitted. Then install the mounting bracket using the self-tapping screwsprovided. Mounting bracket dimensions and fixing hole centers are shown in Figure 4-1.Install the mobile radio in the bracket using the rubber grips and fixing knobs included in thekit. The rubber grips can be fitted in two ways. One way locks the mobile radio rigidly in thebracket. The other provides a friction mount allowing the mobile radio to be tilted to thedesired angle.150 mm48 mm189 mm52 mm Hole 4.5 mmdiameterFigure 4-1 Mobile Radio Mounting Bracket - Dimensions
INSTALLATIONT6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0Page 4-4Install the microphone rest in a convenient location using the screws provided.Plug the microphone lead into the socket located on the underside of the front panel of themobile radio and fit the strain relief grommet into place.Install the speaker in a location where it can be easily heard, using the mounting bracket andscrews provided.4.3 Radio Unit Connections Figure 4-2 Mobile Connections4.4 Power Cable InstallationWhere possible disconnect the vehicles main positive DC supply cable from the battery toprevent damage from accidental short circuits during the installation.In some cases this may cause problems with the loss of engine management information orradio key codes. Check with the customer to see if this is the case before disconnecting thebattery. Power saver devices are available which plug into the cigar lighter or accessoriessocket and prevent loss of memory information on vehicle systems.Route the power cable to the battery. If there is excess cable, cut it to the required length. If itis necessary to drill a hole in the firewall or bulkhead to route the cable through then fit agrommet and seal it when the installation is complete.-+MOBILE UNITBATTERYSPEAKERFUSE HOLDERANTENNAPOWER SUPPLY CONNECTORBNC CONNECTORMICROPHONEFIELD PROGRAMMERIgnition Sense
INSTALLATIONT6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0 Page 4-5Fit the in-line fuse holder in the positive (Red) lead. The fuse protects against short circuits inthe cable run, and so should be located near the battery.Connect the black cable to the negative battery terminal connector and the red cable to thepositive battery terminal connector.Note: Both leads of the power cable should be connected directly to the vehicle batteryterminals. Connection to other points may result in increased interference from the vehicle’selectrical system and excessive voltage drop. If noise is still a problem, an DC noise filtershould be fitted.In some cases a master isolation switch is fitted to the vehicle (e.g. in the case of emergencyvehicles) and it may be a legal requirement to wire to the switched side of the supply.If required connect the ignition sense lead to the ignition switched supply on the vehicle.Plug the power cable into the power supply in-line connector on the mobile radio, andreconnect the positive lead to the battery.
INSTALLATIONT6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0Page 4-64.5 Antenna ConnectionInstall the antenna according to the manufacturer’s instructions.4.5.1 LocationFor best all round performance of the mobile radio, the antenna should be mounted in thecenter of the roof. Alternative positions give degraded performance, the numbers on thediagram below giving the order of preference.Figure 4-3 Antenna LocationsFigure 4-4 Antenna Radiation PatternsWarning: Under no circumstances should the antenna be located near to afuel filler cap (i.e. not closer than 300mm).
INSTALLATIONT6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0 Page 4-7In practice the siting of the antenna is a compromise between performance and practicality. Ifa sunroof is fitted to the vehicle then site the antenna so that it will not be damaged when thesunroof is opened. Mounting at the front of a sunroof can cause annoyance due to wind noisefrom the antenna when the sunroof is opened.Abrade the underside of the antenna hole with coarse emery cloth to remove paint andproduce a clean, bright bare metal surface. This will provide a good contact for the antennaground. Smear the surface lightly with silicone grease prior to tightening the antenna mount toprevent corrosion.4.5.2 Fitting Antenna to Fiberglass VehiclesA separate ground plane must be installed for fiberglass vehicles. This can take the form of aaluminum metal plate or close mesh. The ground plane must extend to at least a quarter of awavelength in every direction. Alternatively two ‘crossed’ aluminum strips can be used. Againthe distance from the antenna mounting point to the end of each strip must be at least aquarter of a wavelength.It will normally be necessary to use an antenna with a longer shank for fiberglass vehicles dueto the greater thickness of the material.4.5.3 Antenna FeederNote: In the case of crimp connectors, use only the correct crimping tool.Use a suitable, low-loss 50 Ω co-axial cable to provide a continuous run between the antennaand the mobile radio equipment. Excess coaxial cable should not be coiled up as this maycause interference and effect vehicle systems. Fit the correct antenna connector at the mobileradio end of the feeder using either crimp or soldered connections as appropriate.4.5.4 Antenna DC Check♦ Check for low resistance (<0.1 Ω) between the center pin of the coaxial connector and theantenna radiator♦ Check for high resistance between the center pin of the coaxial connector and the vehiclechassis♦ Check for low resistance between the body of the connector and the vehicle chassisNote: Some antennas are DC earthed. If this is the case consult the manufacturer’sinstallation instructions.4.6 Loudspeaker ConnectionThe loudspeaker is connected to the mobile radio via PL1 (the power supply and speakerconnector shown in Figure 4-2), pins 3 and 7.4.7 Serviceability Check - General OperationOnce the mobile radio, its accessories and antenna are installed, carry out a serviceabilitycheck as follows:
INSTALLATIONT6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0Page 4-81. Place the directional power or VSWR meter in series with the antennafeed. A Peak Envelope Power meter should be used.2. Start the vehicle and allow to idle for 1 minute to ensure that the batteryvoltage is at the correct level for testing.3. Switch on the mobile radio using the on/off selector/switch, or switch onignition if ignition sensing is utilized, and check that the LED’s anddisplay function and that the startup warble is heard.4. Select a suitable channel that can be used for test purposes and pressthe PTT to cause the mobile to transmit. Measure the PEP and VSWR.5. PEP should be between 7 and 30 Watts, dependent on modulation, andVSWR less than 1.5:1.6. Carry out a functional check by setting up a voice call. Check that thereceived noise is acceptable. If not it will be necessary to carry outsuppression of the vehicle electrical system7. It is important to check that the mobile radio does not affect theoperation of any vehicle systems such as lights, electronic ignition,engine management system and anti-lock brakes. Other electronicdevices fitted to the vehicle, such as radio/cassette player or cellulartelephone, should also be checked. Check that these systems stilloperate correctly when the mobile radio is transmitting.8. If the mobile radio does not function correctly refer to the fault-findingsection in this chapter or fit another unit.9. A vehicle installation report should be completed. An example isprovided at the end of this manual.4.8 Troubleshooting Flow Chart - General OperationIf the mobile radio does not pass the serviceability check, the installation troubleshooting flowchart (see Figure 4-5 )For reference:SPU : Signal Processing Unit (PCB)EXP : Expander card (PCB)RFU : Radio Frequency Unit (PCB)FPU : Front Panel Unit (PCB)PA : Power Amplifier (PCB)
INSTALLATIONT6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0 Page 4-9Figure 4-5 - T6M Series General Troubleshooting Flow ChartSTARTDoes the unitswitch on?Check batteryconnections, fuses &pigtail connectionsNoFault cleared?Remove cover. Checkinternal DC connections& fuse. Remove frontpanel & checkconnections. CheckEXP card is seatedcorrectly.NoFault cleared? Replace EXP, SPU,FPU, RFU in turnNoFault cleared?Correct FPUcontrol & channelselection?YesYesYes YesCheck personalityprogramming Fault cleared? Check FPU, SPU &EXP connections Fault cleared?Change FPU/SPU+EXPlead.Change EXP, SPU inturnFault cleared?No No NoUnittransmits atcorrectfrequencyand power?YesYes Yes YesCheck antenna,Connections &power - ref sect. 5.9 Fault cleared? Check RFU/PA & PA/BNC connections Fault cleared? Replace RFU, PA, SPUin turn Fault cleared?Receivesensitivity OK?YesNo No NoYesYes YesCorrect 2-wayconversationoperation?YesCheck antenna &connections Fault cleared? Check RFU/PA & PA/BNC connections Fault cleared? Replace RFU, PA, SPUin turn Fault cleared?Yes Yes YesNo No NoREPAIR COMPLETEYesCheck antennaCheck microphone,speaker, antennaconnectionsFault cleared?Remove lid & checkinternal connections forspeakerFault cleared? Replace microphone,FPU, SPU, RFU in turn Fault cleared?Yes Yes YesNo No No NoNoNoNoNoUNIT FAILRETURN TOMANUFACTURER
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OPERATIONT6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0 PAGE 5-15. Section Index5.1 Operation ..................................................................................................5-25.1.1 Switching on / off - manual .............................................................................5-25.1.2 Switching on / off - Ignition sense...................................................................5-25.2 Modes of operation ...................................................................................5-25.2.1 Normal mode..................................................................................................5-25.2.2 Priority mode..................................................................................................5-45.2.3 Scan mode.....................................................................................................5-45.3 Programmable options..............................................................................5-65.4 Warning sounds. .......................................................................................5-75.5 Key beeps.................................................................................................5-85.6 Display Blanking........................................................................................5-85.7 Fault Codes...............................................................................................5-85.8 Using the programmer ..............................................................................5-95.8.1 Installing the mobile programming software....................................................5-95.8.2 Operating hints...............................................................................................5-95.8.3 Creating a new mobile personality..................................................................5-95.8.4 Saving a personality.....................................................................................5-135.8.5 Recovering a saved personality....................................................................5-135.8.6 Programming a personality into a mobile......................................................5-135.8.7 Reading the personality from a mobile .........................................................5-145.8.8 Printing a personality report..........................................................................5-145.8.9 Getting a mobile’s serial number and firmware version.................................5-145.8.10 Programming new firmware into a mobile ......................................................5-145.9 Test Mode...............................................................................................5-15
OPERATIONPAGE 5-2 T6M SERIES MOBILE SERVICE MANUAL – SM/16/1.05.1 Operation5.1.1 Switching on / off - manualTo switch on, press the PWR button until the display shows “On”, about 1 second, thenrelease the button. The mobile makes a warble sound, then a few seconds later the displayshows the initial operating frequency. If the mobile displays “c Err” (critical error) at start-up,then it has probably no personality programmed into it. See sections 5.8 for instructions onprogramming.To switch off, press the PWR button until the display shows “Off”, then release the button.5.1.2 Switching on / off - Ignition senseIf ignition sense is required then connect the ignition sense lead (Accessory Lead Pin 1 –L033ACC4000) to the vehicle ignition sense. If ignition sense is not required then leave theignition sense unconnected.When ignition sense is connected, the mobile switches on when the vehicles ignition isswitched on. When the vehicle ignition is switched off, the mobile remains on for a period oftwo hours before switching itself off. The mobile may be switched off manually during thatperiod by using the PWR button, described above.5.2 Modes of operationThe mobile has three main modes of operation:• Normal mode• Priority mode• Scan mode5.2.1 Normal mode• Channels are selected using the CH é and CH ê buttons. These buttons stepthrough the programmed channels one at a time.• The SEL é and SEL ê buttons may also be used for channel selection. Thesebuttons step 10 channels at a time.• Both the CH and SEL buttons auto-repeat when held down.If the highest programmed frequency is reached when stepping up through the channels, themobile wraps round to the lowest programmed frequency. If the lowest programmed
OPERATIONT6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0 PAGE 5-3frequency is reached when stepping down through the channels, the mobile wraps round tothe highest programmed frequency.Channel frequencies are displayed in ICAO format, e.g.Actual operatingfrequency Channel bandwidth Display118.000 MHz 25kHz 118.000118.000 MHz 8.33kHz 118.005118.008 MHz 8.33kHz 118.010118.017 MHz 8.33kHz 118.015118.025 MHz 25kHz 118.025118.025 MHz 8.33kHz 118.030118.033 MHz 8.33kHz 118.035118.042 MHz 8.33kHz 118.040Whilst the mobile is receiving, the loudspeaker volume may be altered using the VOL é andVOL ê keys. The volume keys only affect the volume level of the received audio; thevolume of the confidence tones is unaffected.Squelch may be enabled / disabled, or the squelch level altered using the SQL button.To enable squelch, or to see the squelch level, press the SQL button. The display will showan “S” and the current squelch level. If you do nothing else, then the display returns to thecurrent frequency after a few seconds.To disable squelch, press SQL again whilst the squelch level is being displayed. The displaywill show “S OFF” for a few seconds before returning to the current frequency.To alter the squelch threshold use the volume keys whilst the squelch level is beingdisplayed. If you are hearing unwanted noise, press the VOL é button to increase thesquelch threshold. If you are not hearing a wanted signal then press VOL ê to lower thesquelch threshold. After you have adjusted the threshold the mobile will automatically returnto the normal frequency display after a few seconds.The yellow LED (busy) lights to indicate that the receiver is unmuted by a received signal,i.e., a signal that exceeds the squelch threshold.Display blanking may operate whilst the mobile is receiving in normal mode. When displayblanking is active in normal receive mode, a flashing horizontal bar replaces the frequencydisplay. If the display blanks then it may be reinstated by pressing either volume button, orby pressing the PTT button.To transmit, press the PTT button and talk. Whilst you are transmitting the red Tx LED willlight.
OPERATIONPAGE 5-4 T6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0It may be that the mobile does not transmit when you press the PTT button. This mayhappen if there is a mobile fault or if transmitting is inhibited. In either case, the red Tx LEDwill not light. If the mobile is programmed to produce warning sounds then you will hear awarning sound. If there is a fault, a Fault Code is displayed whilst the PTT button is helddown. Fault Codes are described in Section 5.7. Transmit inhibit options are described insections 5.3 & 5.7.A mobile may be programmed to transmit indefinitely, or to limit the duration of atransmission. If transmission time is limited then mobile produces warning beeps 10seconds before the end of the transmission. When the allowed transmission time is reachedthe mobile stops transmitting, the red Tx LED goes out, and a warning sound is produced ifwarning sounds are enabled.5.2.2 Priority modePriority mode gives you quick access to your most frequently used channels. Up to 15channels may be programmed into the mobile’s priority channel list. Select priority mode bypressing the PRI button.Priority mode operates like normal mode with the following exceptions.• Every few seconds the display shows “P” to remind you that you are inpriority mode.• Channels are selected using the SEL é and SEL ê keys.• Display blanking in priority mode causes the display to show a blinking “P”rather than a bar.You may leave priority mode in one of three ways.• Press PRI to return the previous mode (normal or scan).• Press CH é or CH ê to go to normal mode.• Press SCN to go to scan mode.5.2.3 Scan modeIn scan mode the mobile scans a range of predefined channels looking for a busy one. Abusy channel is defined as a channel with a received signal strength greater than the squelchthreshold. A mobile may be programmed with up to 15 scan groups, with up to 15 channelsin each group.When the mobile finds a busy channel you will be able to listen to that channel. Whathappens next depends on the way the mobile is programmed. It has two possible seekmodes, “Hold” and “Pause”.If Hold mode is programmed then the mobile remains on the channel until you press the CHé button to resume scanning.
OPERATIONT6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0 PAGE 5-5If Pause mode is programmed then the mobile remains on channel for 6 seconds thenresumes scanning automatically. You can override this, making the mobile hold, by pressingthe CH é button or the microphone PTT button before scanning resumes. To stop holding,and resume scanning, press CH é once more.Scan mode is selected by pressing the SCN button. Once in scan mode a scan group isselected using the SEL é and SEL ê keys. During scanning the display shows “the number of the current scan group.Scan mode is cancelled by:• Pressing the SCN button to go to normal mode.• Pressing the PRI button to go to priority mode.If the mobile is holding or paused on a channel then pressing the PTT allows you to transmit,unless there is a transmit fault or transmission is inhibited. See sections 5.3 & 5.7 for moreinformation on transmit inhibit and transmit faults.Display blanking is not operative in scan mode.Channels may be locked out of the current scan group by pressing the CH ê button whilstthe mobile is paused or holding on the channel to be locked out. This lock out is temporary;all locked out channels are reinstated when scan mode is cancelled.Squelch is automatically enabled when scan mode is selected.Channels may be programmed into more than one scan group.Scan and priority modes are mutually exclusive.
OPERATIONPAGE 5-6 T6M SERIES MOBILE SERVICE MANUAL – SM/16/1.05.3 Programmable optionsThe following general options are programmable via the mobile unit’s serial programmingport. An external, PC based, programming software package and associated interconnectionleads can be supplied to provide access to these features.Range Default NotesDisplayblanking On or off Off See description below.Displayblanking time 10 – 300seconds 60 See description below.Maximumtransmit time 30 – 300seconds, orunlimited60 Use this option to limit themaximum continuous timetransmit duration.Hold on scanmode On or off On Described in scan modesection.Key beeps On or off On See description below.Warning beeps On or off On See description below.Warning beepvolume 1 – 7 3See description below.Personalitydescription 46 characteralphanumericstringAn emptystring A free format text string thatyou may use to identify themobile.Use channelstrings Yes or no Yes Indicates if channelprogramming data is toinclude descriptive strings.Selecting this optionreduces the maximumnumber of channels from760 to 400.Busy on time 0.1 – 5seconds 0.5seconds Squelch must be open forthis time before an inactivechannel is considered busy.Offsetchannels On or off Off When on, the mobile scansfor the strongest frequencywithin a 25kHz channel.
OPERATIONT6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0 PAGE 5-7These options are programmable for each of the channels programmed into the mobile.Range Default NotesFrequency Any frequencysupported bythe mobileEnter this in ICAO format,which defines both thefrequency and thebandwidth.Prioritychannel Yes on No No Up to 15 channels may bedefined as priority channels.Scan group 1 – 15 or notassigned Notassignedto a scangroup.Up to 15 channels may beassigned to each of the 15scan groups. A channelmay be in more than onegroup.Transmitinhibited No inhibit,always inhibitor inhibit ifbusyNo inhibit This option can be used toprevent the mobiletransmitting on a particularchannel.Identificationstring 16 characteralphanumericstringAn emptystring A free format text stringdescribing the channel.5.4 Warning sounds.Warning sounds may be enabled / disabled when the mobile is programmed.The volume of key beeps and warning beeps is not affected by the volume controls. Thevolume of these sounds is set when the mobile is programmed.When warning beeps are enabled, the following conditions cause error beeps when the userattempts to transmit• A mobile fault is preventing transmission.• Attempting to transmit on a channel with the “transmit inhibit” option set toalways inhibit.• Attempting to transmit on a busy channel with the “inhibit if busy” optionselected.• Imminent transmitter timeout.
OPERATIONPAGE 5-8 T6M SERIES MOBILE SERVICE MANUAL – SM/16/1.05.5 Key beeps.The mobile may produce a single beep whenever a button is pressed. This option isselected during programming. The volume is the same as warning sounds and is set whenthe mobile is programmed.5.6 Display BlankingDisplay blanking is an option that can be enabled when the mobile is programmed. Thedisplay blanking time is programmable.When display blanking is enabled, the normal frequency display is replaced by a flashing bar,if the mobile is not used for the display blanking time.A blanked display is reinstated by pressing any button, including the on / off button, or bypressing the microphone PTT button. It is recommended that the volume buttons be used asthis reinstates the display without altering any settings.Display blanking only operates when the mobile is receiving in normal mode or in prioritymode.5.7 Fault CodesF1 Synthesiser failed.F2 Unstable output.F4 Over temperature. This may occur during long or repeatedtransmissions. The fault clears itself as the mobile cools down.F8 Reflected power problems. May occur if no antenna is connected or ifthe antenna, antenna cable, or connectors are faulty.F16 Low supply voltage. May be caused by low power supply voltage orhigh resistance connections.F32 High voltage. Probably caused by a power supply fault.
OPERATIONT6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0 PAGE 5-95.8 Using the programmer5.8.1 Installing the mobile programming softwareThe programming software works with Windows 95 and 98 only. A mouse, or otherpointing device, is strongly recommended.To install, run “Setup.exe” from the disk provided. This creates a program group andicons for the programmer. An uninstall option is created automatically.5.8.2 Operating hintsTo help you use the programmer, hints are displayed on the status line at the bottomof the programmer’s window. This happens whenever you position your mousepointer over a programmable option. For options that require you to enter numbersor text, the hints will tell you what the allowed options are.The status line also shows the progress of programming operations.5.8.3 Creating a new mobile personalitySelect the File | New option from the menu. This resets all options to default valuesand clears all the entries in the frequency table except one. Select the “General”page.
OPERATIONPAGE 5-10 T6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0Next, decide if you want to store a descriptive text for any of the frequencies you wishto use. If you do, make sure the Use channel strings option, on the General pageis checked. If you do not need descriptive text, or you want to program more than400 frequencies, then uncheck this option. With the option checked you mayprogram up to 400 frequencies; when unchecked you may program up to 760frequencies. You should always set the Use channel strings options before youstart to enter frequencies onto the Frequencies page.You may enter new values for the other options on the General page now, or afteryou have entered details of the frequencies you wish to use.Your mobile has an optional power saving feature, Display blanking. This works byhiding the frequency display when you are not using the mobile. To enable thisoption, check Display blanking. You should also enter a Display blanking time.Any number between 10 and 300 seconds is allowed. If you do not use your mobilefor this period of time then the display will blank. Note that the display is neverblanked whilst your mobile is scanning.You may program your mobile to produce warning sounds by checking the Warningbeeps option. You will then hear warning sounds if a mobile fault occurs or if youattempt to transmit on an inhibited frequency. Transmit inhibit options are describedin more detail later.The Hold in scan mode option alters the way in which your mobile scans for busyfrequencies. If Hold in scan mode is not checked then your mobile with pause onbusy frequencies for six seconds, then start scanning again. If Hold in scan modeis checked then your mobile will stay on a busy frequency until the CH é button ispressed to restart scanning.The Busy on time option also alters the way in which your mobile scans for busyfrequencies. In scan mode, your mobile will pause or hold on a frequency only if itappears to be busy for at least the Busy on time. Set Busy on time to lower valuesfor faster scanning. Set it to higher values to make scanning less sensitive tounwanted noise. You may find that your mobile tends to scan to noisy channels thatare not really busy. If this problem cannot be cured by increasing the squelchthreshold then increase the Busy on time.Check the Key beeps option if you want your mobile to beep whenever a key ispressed.Warning beep volume controls the volume of warning sounds and key beeps. Itdoes not affect the volume of received signals. If warning sounds and key beeps aredisabled then this option has no effect.If you check the Offset channels option then your mobile will automatically lock tothe strongest signal if it detects two or more transmitters operating on the samefrequency.Use the Max transmit time option to limit the maximum continuous transmit time. Ifyou set this option to 0 then you may transmit indefinitely. If you set it to any othervalue then your mobile will stop transmitting after the specified time. If you limittransmit time and enable warning beeps then you will hear warning sounds 10seconds before the mobile stops transmitting and again when transmitting stops.
OPERATIONT6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0 PAGE 5-11You may want to store a short Personality description in the mobile. For example,if you save your mobile’s personality as a file, then it might be useful to put the filename here.On the Frequencies page, you will see a single default entry. If you want yourmobile to be able to operate on the default frequency shown, than leave thefrequency value as it is, otherwise alter it to a frequency that you do require.Enter frequencies in ICAO format, which specifies both the operating frequency andbandwidth. There is no need to enter a bandwidth as the programmer determinesthe bandwidth from the entered frequency.If you want the frequency to be included in the list of priority frequencies then enterYes in the Priority column. You need only press Y or N. Up to 15 frequencies maybe marked as priority frequencies.If you want the frequency to be a member of a scan group then enter the scan groupnumber in the scan group column. If you want the frequency to be in more than onescan group then separate the scan group numbers with commas.There are 15 scan groups, numbered 1 to 15. You may put up to 15 frequencies ineach group.The Tx Inhibit column determines when a mobile may transmit. If inhibit is set toNever, by entering N in this column, then transmit is always allowed. This allows youto transmit on this frequency even if it is busy.
OPERATIONPAGE 5-12 T6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0If Tx Inhibit is set to Always, by entering A, then you will never be able to transmiton this frequency.If Tx Inhibit is set to Busy, by entering B, then you will not be able to transmit on thisfrequency whilst it is busy, but you will be able to transmit when it is not.If you have checked the channel string option then you may enter a short descriptionof the frequency in the Identity column. This is optional.To add another frequency to the list, use the Add channel button.To remove a frequency from the list, first select the frequency to be removed, thenuse the Delete channel button.To help you enter a large number of frequencies quickly you may use the Fill tablebutton. This opens a new window that allows you to add a range of frequencies tothe frequency table.Enter the lowest required frequency in the First frequency box and the highestrequired frequency in the Last frequency box.Use the Channel bandwidth selector to determine the bandwidth of the frequenciesto be added. If 25kHz is selected then all the frequencies between the first and lastfrequency will be added using 25kHz channel spacing. When 8.3kHz is selectedthen only 8.3kHz frequencies will be added. The Both option allows all frequenciesof both bandwidths to be added.Use the Transmit Inhibit selector to specify the default Tx inhibit option for the newfrequencies. Click the Add channels button to add the frequencies to the table.You may edit the options for a frequency at any time.If you have programmed a large number of frequencies then use the Find channelbutton to find quickly a frequency in the frequency table. Enter the frequency you arelooking for, then click Find it.
OPERATIONT6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0 PAGE 5-13When you have finished entering frequencies, click the Verify and sort the table button.This checks that everything you have entered is allowed, and sorts the frequencies intoascending order. You may omit this step as it is done automatically whenever you try toprogram a mobile, save a personality or generate a personality report file.5.8.4 Saving a personalityTo save a new personality select File | Save as from the menu. The programmerautomatically verifies that everything you are trying to save is valid. If it is not thenyou will see an error message. If you see an error message, correct the error beforeselecting File | Save as again.When the Save as window appears, enter a name for the personality, or select anexisting name. The programmer requires that personality files have a .per extension,and will not allow you to save a personality with any other extension. When you haveselected or entered a name, click Save to save the personality.If the save is successful the file name appears at the top of the programmer window.If you now edit the personality you can save it under the same name by selecting theFile | Save option.5.8.5 Recovering a saved personalitySelect File | Open from the main menu. Select one of the files displayed, then clickOpen.5.8.6 Programming a personality into a mobileConnect the programming lead to one of your PC’s serial ports. You may use COM1or COM2.On the programmer’s General page select the COM port that you want to use.Unplug the microphone lead from the mobile. Connect the other end of theprogramming lead into the mobile’s microphone socket, then switch on the mobile.The mobile shows that it is in programming mode by displaying Pr.N.B. If the mobile does not contain valid firmware then the display may show oddsymbols, rather than Pr. If this happens refer to the “Programming new firmwareinto a mobile” section.Select Program mobile | Personality from the main menu.The programmer automatically verifies that everything you are trying to program isvalid. If it is not then you will see an error message. If you see an error message,correct the error before selecting Program mobile | Personality again.The progress of the programming operation is displayed on the status line at thebottom of the programmer window. When programming is complete, switch off themobile and disconnect the programming lead.
OPERATIONPAGE 5-14 T6M SERIES MOBILE SERVICE MANUAL – SM/16/1.05.8.7 Reading the personality from a mobileFirst connect the programming lead to one of your PC’s serial ports. You may useCOM1 or COM2.On the programmer’s General page select the COM port that you want to use.Connect the other end of the programming lead into the mobile’s microphone socket,then switch on the mobile. The mobile shows that it is in programming mode bydisplaying Pr.Select Read mobile | Personality from the main menu.The progress of the read operation is displayed on the status line at the bottom of theprogrammer window.If the read is successful then the mobile’s personality is displayed.5.8.8 Printing a personality reportSelect Report | Generate from the main menu. The programmer automaticallyverifies that the current personality is valid. If it is not then you will see an errormessage. If you see an error message, correct the error before selecting Report |Generate again.A textual representation of the personality will be displayed using Windows’ Notepadprogram. You may use Notepad to print, or to save the personality report as a textfile. Before printing you might like to alter the displayed information, perhaps addinginformation about the mobile or the date of the report.When you close Notepad after generating a new report you will be asked if you wishto keep the report. Select Yes to keep the report as a file or No to discard it.You can open existing report files by selecting the Report | Open menu option.5.8.9 Getting a mobile’s serial number and firmware versionFirst connect the programming lead to one of your PC’s serial ports. You may useCOM1 or COM2.On the programmer’s General page select the COM port that you want to use.Connect the other end of the programming lead into the mobile’s microphone socket,then switch on the mobile. The mobile shows that it is in programming mode bydisplaying Pr.Select Read mobile | ESN from the main menu. After a few seconds a pop-upwindow displays the mobile’s ESN.“ESN” is short for Electronic Serial Number. The first part of the number describesthe mobile’s type and firmware version. The second part is a serial number unique toyour mobile.5.8.10 Programming new firmware into a mobileWARNING!
OPERATIONT6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0 PAGE 5-15Use this option with care as programming a mobile with incorrect firmwaremay leave it in an unusable or unusable state.First connect the programming lead to one of your PC’s serial ports. You may useCOM1 or COM2.On the programmer’s General page select the COM port that you want to use.Connect the other end of the programming lead into the mobile’s microphone socket,then switch on the mobile. The mobile shows that it is in programming mode bydisplaying Pr.N.B. If the mobile does not already contain valid firmware then the display may showodd symbols, rather than Pr. This will not prevent you from programming newfirmware; just continue as if Pr was displayed.Select Program mobile | Firmware from the main menu.A file “Open” window appears. Firmware files are in Intel hex format, and will have a.i00 extension. Select the required file then click Open.The progress of the programming operation is displayed on the status line at thebottom of the programmer window. When programming is complete, switch off themobile and disconnect the programming lead.5.9 Test ModeTest mode is used to adjust the mobile’s transmitted power output. The range ofadjustment is typically from six to twelve watts, although this may vary from mobile tomobile.To enter test mode switch on the mobile by pressing the power button. Withoutreleasing the power key, press first the SQL button, then the SCN button, and finallythe PRI. Then release the power button. The mobile displays “tESt” to indicate thatit is in test mode. After a few seconds the display changes to show the current powerlevel setting.In test mode the mobile may operate on one of three predefined frequencies, i.e.118MHz, 127.5Mhz or 136.975MHz. Use the SQL button to select one of thesefrequencies for operation at 25kHz bandwidth. Use the PRI button to select one ofthese frequencies for operation at 8.33kHz bandwidth. The select frequency isdisplayed in ICAO format. It is recommended that the output power is adjusted at127.5Mhz, selected with the SQL button.Transmit and receive operation in test mode is similar to normal operation, exceptthat squelch is always off in test mode. The volume keys may be used to adjust thevolume of received signals. The SCN key has no purpose in test mode.Adjust the transmitted power level with the CH and SEL keys. The CH keys alter thesetting one step at a time, whilst the SEL keys change it in steps of ten. The range ofadjustment is from 1 to 240 inclusive.Alter the power level setting whilst the mobile is receiving, then press the microphonePTT button to observe the result. The mobile should be adjusted to achieve 8 watts
OPERATIONPAGE 5-16 T6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0transmitting.The transmit LED lights whilst the mobile is transmitting. If there is a transmitterproblem then the mobile stops transmitting and the red LED is extinguished. Notethat transmit fault codes are not displayed in test mode.To switch off without saving the new setting, press and release the power key. Thedisplay then shows “nS” and the speaker sounds a single, long tone.To save the new setting, press and hold the power button. With the power buttondepressed, press PRI, then SCN, then SQL. When the new setting is saved, thedisplay shows “S” and the speaker sounds two short pips. If the key sequence isincorrect then the display shows “nS” and the speaker sounds a single, longer tone toindicate that the new setting has not been saved.
PERFORMANCE TESTINGT6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0 Page 6-16 Section Index6.1 Introduction ................................................................................................. 6-26.2 Test Equipment ........................................................................................... 6-26.3 Power Supply .............................................................................................. 6-26.4 Transmitter.................................................................................................. 6-26.5 Receiver...................................................................................................... 6-36.6 TX Power Adjust.......................................................................................... 6-3
PERFORMANCE TESTINGPage 6-2 T6M SERIES MOBILE SERVICE MANUAL – SM/16/1.06.1 IntroductionThe following sections detail basic field testing requirements of the mobile to confirmcorrect RF operation. These tests should be performed on a low, a middle and ahigh channel to ensure that the RF performance is consistent across the mobile’sentire range. Whilst these tests do serve to indicate the nominal RF performance,there are relatively few adjustments available to field personnel, so mobile’s failing tomeet these basic tests should be returned to the supplier for correct repair orretuning.6.2 Test EquipmentThe tests require the following equipment:♦ Bench Power Supply♦ Digital Multimeter♦ RF Power Meter♦ Oscilloscope♦ RF Signal GeneratorEnsure that the range measurement capabilities of each item is appropriate for themobile under test. Suitable alternatives, such as a comprehensive RF test set, maybe substituted where available.6.3 Power SupplyFor this test and all others, ensure that the mobile is connected to a nominal 13.2VDC supply.1. With the mobile configured to operate normally, check that the mobiledraws <100mA when it is switched off.2. Turn the mobile on and check that the mobile draws <2A when in normalstandby mode (receive mode, muted).6.4 Transmitter1. Place the mobile into test mode (for details of test mode operation, pleaserefer to Section 5.9).2. Key up the mobile and, with no modulation applied, check the following:I. Current draw is <6.2AII. Transmit power is >7W and <10WIII. Transmitter frequency is within 1.0ppm
PERFORMANCE TESTINGT6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0 Page 6-33. Apply an audio signal tone of 1 KHz at 35mV peak to pin 3 of the mobile’smic connector (ground on pin 5) and key up the transmitter. Check thefollowing:IV. Current draw is <6.2AV. Transmit power is >7W and <10 W averageVI. Carrier modulated to >85%4. Increase the 1KHz tone level by 20dB. Check that:VII. Carrier is now modulated to <95%6.5 Receiver1. Take the mobile out of test mode and apply an RF signal to the mobileon an appropriate frequency, modulate it with a 1 KHz tone to 30%and set the Mobile’s squelch threshold to 2. Adjust the RF level sothat the squelch is muted.2. Increase the RF level until the squelch just unmutes and check thatthe SINAD figure is >12dB.3. Increase the mobile’s volume to produce an audio output level of 4W.Check that the distortion figure is <5% for 30% modulation and is<10% for 90% modulation.4. Check that the current drawn is 2A6.6 TX Power AdjustTo adjust the TX Power, please refer to Section 5.9.

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