DTC Communications PDTX1000S COFDM Transmitter User Manual palladium1 2000manual 1b

DTC Communications Inc. COFDM Transmitter palladium1 2000manual 1b

Manual

COFDM TransmitterModel Pd-TX-1000 1 W OutputModel Pd-TX-2000 2 W OutputDTC COMMUNICATIONS, INCORPORATED
DTC COMMUNICATIONS, INC.2warrantyDTC warrants its manufactured componentsagainst defects in material and workmanshipfor a period of two (2) years, commencing onthe date of original purchase.Products manufactured by others that areapproved for use with DTC equipment arewarranted for the manufacturer’s warrantyperiod, commencing from the date of shipmentfrom DTC.FCC informationThe following information is provided as aservice to our law enforcement customers whorequire a Part 90 station license for videosurveillance operations.You will need to provide two documents:• Form 600 (the application form)• Form 159 (the filing fee form)Forms can be obtained from the FCC on theirwebsite at:www.fcc.govYou can also contact the FCC using their FAXback service at: (888) 418-3676Additional instructions are available bytelephone at: (888) 225-5322The filing fee form is returned to:Federal Communications Commission1270 Fairfield RoadGettysburg, PA 17325-7245PN OP1920305 REV 2copyright noticeCopyright © 2005DTC Communications, Inc. All rightsreserved. No part of this document may bereproduced, transmitted, transcribed, storedin a retrieval system or translated into anylanguage or computer language, in any formor by any means, including but not limited toelectronic, magnetic, mechanical, optical,chemical, manual or otherwise, without theprior written permission of DTCCommunications, Inc.disclaimerThe information in the document is subject tochange without notice. DTC makes norepresentations or warranties with respect tothe contents hereof, and specifically disclaimsany implied warranties of merchantability orfitness for a particular purpose. DTC reservesthe right to revise this publication and tomake changes from time to time in thecontent hereof without obligation of DTC tonotify any person of such revision or changes.trademarksTrademarks of DTC Communications, Inc.include:• DTC• MiniPIX®• DynaPIX®• PatrolPortal®Other product names used in this manual arethe properties of their respective owners.how to contact DTCFor operator and troubleshooting information,customers are encouraged to refer to thedetails in this manual. For additionalclarification or instruction, or to order parts,contact DTC.Customer Service is available Monday throughFriday between the hours of 9:00 AM and5:00 PM EST at:Tel: 603-880-4411Fax: 603-880-6965Website: www.dtccom.comEmail: info@dtccom.com486 Amherst StreetNashua, New Hampshire 03063miniSDTM is a trademark of SD CardAssociation.
DTC COMMUNICATIONS, INC. 3NOTE: Describes special issues you shouldbe aware of while using a particular function.WARNING: Calls out situations in whichequipment could be damaged or a processcould be incorrectly implemented, but inwhich operator safety is not a factor.TIP: Describes application hints.RF EXPOSURE STATEMENTA separation distance of at least 20 cm must bemaintained between the antenna and the body ofthe user or nearby persons.NOTE: This device is for occupational useonly. Occupational users are those personswho are exposed as a consequence of theiremployment, provided these persons are fullyaware of and exercise control over theirexposure.manual conventionsQuick Start ............................................................................ 4-5Thermal Issues ........................................................................... 4Introduction ............................................................................... 6Operation ............................................................................... 7Using your Palladium Transmitter ................................................ 7Changing your Transmitter Configuration .................................... 7Components ........................................................................... 8-9Programming ...................................................................... 10-15System PC Controller Application Software .............................. 10Transmitter Control Application ................................................. 11Specifications ..................................................................... 16-17Warranty ............................................................................. 18Contact DTC ............................................................................ 19TABLE OF CONTENTS
DTC COMMUNICATIONS, INC.4NOTE: Eight Channel LEDs are located under the sliding controlpanel door. If all 8 green LEDs are flashing, this indicates that yourpower source is low.Complete these steps:1Connect the transmitter antenna to the SMA connector on the top of thePalladium unit.2If you plan to use audio, connect one or two microphones to the Audio 1and/or Audio 2 LEMO connectors.3Connect power and video input via the Multi I/O cable to the 6-pinHirose connector:a Attach your camera video input (75 ohm composite video source inPAL or NTSC) to the Multi I/O cable BNC connector.b Apply the necessary power to your camera and turn ON.c Attach a 12 VDC power source to the Multi I/O cable via the Molexconnector. The power source must be capable of supplying a minimumof 30 Watts for the PdTx-1000 and 36 Watts for the PdTx-2000.123QUICK STARTThermal IssuesHigher power Palladium1 and 2 Watt Transmittersfeature mounting tabs forconvenient installation andheat dissipation. Properheat sink mounting isrequired. Operating withoutproper heat sinking wouldcause overheating anddamage to electroniccomponents.Palladium Transmitter, Top View
DTC COMMUNICATIONS, INC. 5456QUICK START4Slide the control panel door to the right.5When power is applied, the green RF LED turns ON. The channelnumber LED also turns ON, representing the most recent channelsetting from the last time the transmitter was used. Push the RF buttonto transmit.6 If you need to change the operating channel, press the CONFIG buttonto cycle through the 8 available channels indicated by the channelnumber LEDs. Refer to the Programming section on page 10 for moreinformation on channel settings. When you change the channelconfiguration, the RF transmission is automatically switched OFF toprevent accidental interference. When you have selected the channelyou need, push the RF button for one second to start transmittingagain. The RF LED will turn ON.NOTE: A red ALARM LED indicates that no video is connected.Your Transmitter is now operational. Confirm its signal with yourPalladium Receiver.NOTE: The RF switch should remain ON during normal use. The RFautomatically shuts off during programming to prevent accidentaltransmissions on unintended frequencies.Palladium Transmitter,Front ViewOptional Data andChaining Connector
DTC COMMUNICATIONS, INC.6INTRODUCTIONThe Palladium Pd-TX-1000 and Pd-TX-2000 digital video transmitters arehigh power COFDM transmitters designed for longer range transmission.The Pd-TX-1000 provides 1 Watt of RF output power and the Pd-TX-2000has 2 Watts of RF output power.Both models use internal high-linearity power amplifiers to boost theoutput power. Users must consider heat generation under anticipatedoperating environments and ensure sufficient heatsinking and/or cooling.A number of heat sinks are available for use with these units.These Palladium Transmitters are designed for stand-alone operation,off the body in surveillance applications, unattended long rangetransmitters with sufficient battery or AC power sources, and in largerrobotic and UAV platforms.All Palladium Series transmitters are designed for 2.5 MHz channelspacing and use approximately 400 carriers to transmit video and twochannels of voice or data. Transmitters may be located on adjacentchannels without a guard interval. The transmitter housings are built outof rugged milled aluminum, with heat sink mounting tabs incorporatedinto the chassis.Palladium TransmittersPalladium Pd-TX-10001 Watt Digital Transmitter
DTC COMMUNICATIONS, INC. 7OPERATIONUsing your Palladium TransmitterFollow the instructions given in the Quick Start section on pages 4-5.When power is first applied to the Palladium, the unit reverts to the lastused channel and RF status. One of the green channel LEDs will turn ONindicating the active channel. The Alarm LED may be ON, which indicatesthat there is no active video input.Changing your Transmitter ConfigurationThe Palladium Transmitter can store up to 8 different configurations,which can be selected on the front panel. Each of these configurations canbe programmed into the Transmitter with the supplied DTC ProgrammingSoftware and a Windows PC. Refer to the Programming section on page 10for more information.To cycle through your preconfigured channels press the CONFIG buttononce to advance to the next setting. By default, the Palladium will turnOFF the transmitted signal whileyou are changing channels. This isto prevent accidental interference.Push the RF button after channelselection to resume RFtransmission of your video image.Palladium Pd-TX-20002 Watt Digital Transmitter
DTC COMMUNICATIONS, INC.8Optional Data and ChainingConnector (10-Pin Hirose)This connector is located on thebottom of the transmitter forfuture use.COMPONENTSAudio 1 and 2 Connectors Transmitter Antenna ConnectorSliding Control Panel Door(Control Panel shown on right.)▼Muiti I/O Connector
DTC COMMUNICATIONS, INC. 9COMPONENTSAudio 1 and 2 Connectors (LEMO)These connectors provide themicrophone connections to thetransmitter. Either one or twomicrophones can be used with thePalladium Transmitter.Transmitter Antenna Connector(SMA) This connector attaches tothe transmitter antenna and carriesthe RF output signal. Always ensurethe transmitter antenna is attachedbefore operating the PalladiumTransmitter.Muiti I/O Connector (6-pin Hirose)This connector providesconnections for the DC power input,programming, and 75 Ohmcomposite video signal.ALARM LED This red LED indicates a valid video signalis not present.RF Button This membrane switch togglesON/OFF the RF output.Channel LEDs These green LEDs, numbered 1 through8, indicate the channel number currently selected.Each channel represents a set of preconfiguredsettings.CONFIG Button This membraneswitch cycles through the eightchannels.RF LED This green LED indicates that the RFoutput is ON.Control Panel (located under sliding door)
DTC COMMUNICATIONS, INC.10PROGRAMMINGSystem PC Controller Application SoftwareAdvanced control of the system is available by using the PC controlerapplication provided. Typically users may want to customize defaultconfigurations to control settings such as frequency, encryption keys,modulation parameters, etc.The transmitter is controlled by the application DTC_tx_ctrl.exeprovided on the CD delivered with the Palladium.A PC is required with an available RS232 Serial COM port to control thetransmitter programming.Installation of the control program is as simple as copying it from the CDto a suitable location on the PC. No install routine is necessary. Note thatthe controller generates its own log and initialization files, so it is best tocreate a dedicated directory for the application, perhaps with links to theapplication from the desktop of the PC.Getting Started•Use the supplied programming cable to connect the chosen COM port(s) of the PC to the Palladium to be configured.•Launch the application by double clicking or using the run command.•Connection with a transmitter should be automatic, but the user can force selection of the correct COM port using the drop down, followed by the Connect button.•Errors may appear during the connection process if the PC is unable to automatically ascertain which unit is connected to which COM port.Programming Cable is connected to theMulti-I/O Connector on the top of thePalladium.
DTC COMMUNICATIONS, INC. 11PROGRAMMINGTransmitter Control ApplicationOutput Frequency (MHz)The transmit frequency can be changed by entering the new desiredfrequency in this field. Values outside the range supported by a particulartransmitter type will be rounded to the highest or lowest supportedfrequency as appropriate. The resolution of the transmit frequency iscomplex and resolved to the closest achievable within the constants of thesupported step sizes of 1MHz, 1.6667 MHz and 2.5 MHz.Modulation OutputThis control is used to turn on and off the RF output. After a configurationchange, the output always reverts to OFF. It must be ON for operation.Modulation FECThe default FEC is 2/3, however improved range operation can be achievedby selecting FEC 1/3. FEC 1/3 will improve signal range by 3dB. HoweverFEC 1/3 reduces link capacity to 1.2Mb/s therefore reducing picturequality.FEC Link Bitrate Sensitivity 2/3 2.4Mb/s: -99dBm,1/3 1.2Mb/s: -102dBmModulation Guard IntervalThe Guard Interval is fixed at 1/16 in current software releases.Modulation BandwidthFor the Palladium transmitter products, the modulation bandwidth is fixedat 2.5MHz.COFDM ModeThe COFDM mode can be changed between QPSK and 16QAM. QPSK isthe default mode and will give the strongest most rugged RF linkperformance. Selecting 16QAM reduces the link performance by 5dB butimproves the link data throughput, giving significantly better video quality.Default values are shown in red.OFF2/31/162.5 MHzQPSK(your frequency)
DTC COMMUNICATIONS, INC.12Output AttenuationThis control can be used to make minor adjustments to the output powerlevel, but in normal operation should not be changed from factory settings.Video InputThis control is used to select the composite video input standard. Optionsare PAL, and NTSC both with and without 7.5 IRE pedestal.Video BitrateThis control can be used to set the video bitrate within the constraints ofcapacity available in the channel, but only when Chaining Input is set toON.Chaining CANNOT be enabled on normal transmitters, and as such videobit rate control is automatic.The video bit rate is automatically maximized in each configuration whenChaining Input is turned off.Horizontal resolutionThe video coding resolution can be selected from 704, 528, 480 and 352pixels. Changing the horizontal resolution to lower values will make thecoded picture softer.Care should be taken to match the horizontal resolution to the resolutionof the camera connected to the transmitter; this will give best imageresults.Audio EncoderThe Audio can be turned on and off with this control. Audio is OFF bydefault, but there are several audio modes that vary from very high qualityto speech grade that can be selected with this control. Enabling audio willdegrade the video quality, because some of the available data capacity isdiverted away from video to audio. Selecting high fidelity audio modes willdegrade the video quality more than lower fidelity audio modes.PROGRAMMING(As Desired)NTSC1.1528OFFDefault values are shown in red.
DTC COMMUNICATIONS, INC. 13Audio Input LevelThis control is used to define the audio gain to be applied to the audioinput signal. 0dB is used for line level audio and various options up to48dB of gain can be applied for microphone inputs.Unit NameFuture Use..Sleep ModeThis control allows the unit to be forced into a Sleep Mode where mainfunctions are disabled, and the power consumption is significantly re-duced.DataFuture use.Data Baud RateFuture use.Chaining InputFuture use.Chain NumberFuture use.PROGRAMMING24 dB(As Desired)NOOFF1200OFF0Default values are shown in red.
DTC COMMUNICATIONS, INC.14Current ConfigThis field reports the last loaded configuration number. Note that for thePalladium transmitter, changes applied after the configuration has beenloaded are saved immediately into the current configuration.ScramblingIf the AES scrambling option has been purchased for the system in use,then it is possible to encrypt the link. Scrambling must be enabled at thetransmitter by selecting AES in the scrambling field. At this point the userwill need to ensure that the correct key is in use and this is done by usingOptions/Write AES key. The key is 128 bits and is entered as 32 ASCIIhexadecimal characters (0-9 and A-F).Video Locked (Status Only)This status information indicates whether the transmitter is successfullylocked to the incoming composite video signal. Unlocked status mayindicate cabling faults, or poor quality incoming video feeds to the unit.Software Version (Status Only)This status information describes the version of the software running thetransmitter product.FPGA Version (Status Only)Engineering use only.Serial Number (Status Only)This status information is the electronic serial number of the transmitterPCB. This number can be used for upgrades or support.Chaining (Status Only)Future use.PROGRAMMING(Ch. No.)OFFDefault values are shown in red.
DTC COMMUNICATIONS, INC. 15OptionsTimeouts – password protected access to change timeouts used duringthe serial communications between the unit and the controller.Engineering – password protected access to further diagnostic andcalibration features.Write License Code – open a further password protected box for enteringlicense codes for future use.Change RS232 address – prompts the user to change the units RS-232address, which can be useful when connecting multiple units together viaa multi drop RS-485 bus for control purposes.Write AES Key – opens a dialogue box for entering a 128bit AESscrambling key, as 32 ASCII hexadecimal characters (0…F)Restore Defaults – restores factory default settings in the transmitter.Polling Enabled – selecting this option makes the control applicationautomatically refresh the data presented to the user every few seconds.FileLoad Config – used for loading configuration data to text file.Save Config - used for saving configuration data to text file.Change Logfile – opens a standard Windows file save dialog box whichallows the user to change the path and name of the log file generated bythe application.Exit – exits the control application.PROGRAMMING
DTC COMMUNICATIONS, INC.16PhysicalUnit Dimensions Pd-TX-1000 5.50”L x 3.13”W x 2.52”D Pd-TX-2000 5.50”L x 3.13”W x 2.52”DEnvironmentalOperational Temp -10 degrees C to 70 degrees CPowerInput Voltage 11 to 18 VDCPower Consumption Pd-TX-1000 Fully Operational ~ 24 Watts typical Pd-TX-2000 Fully Operational ~ 30 Watts typicalControlPC Control Interface RS-232.Memory Eight user-programmable configurationsVideo EncodingCompression Standard MPEG-2 with non-DVB modesChrominance Profile 4:2:0Line Standard PAL 625 or NTSC 525Horizontal Resolution 704, 528, 480, 352 pixels (528 as standard)Vertical Resolution 576 (625 lines) or 480 (525 lines)Video Bitrates 1Mbps to 10 MbpsSystem Latency End to end delay of 43 millisecondsSPECIFICATIONS
DTC COMMUNICATIONS, INC. 17SPECIFICATIONSAudio EncodingInput 1 Stereo or Dual Mono pairBitrates 7 28 kbps to 72 kbps depending on configurationSampling Frequency 32 kHz, 16 kHz or 8kHzTHD < 0.1% maxResponse 20Hz to 6KHz, +/- 0.25dBCrosstalk > 55 dB minS/N 60 dB RMSComposite Video InputStandards NTSC (with and without pedestal) or PALSpecification Rec. ITU-R BT.470-4Connector HiroseComposite PAL and NTSC decoding Eight-bit comb filtering composite decoderAnalog AudioAnalog Audio Input +10 dBuNominal Level +4 dBuDataBaud Rate Up to 115 kbaudConnector LEMOScramblingScrambling type Fixed key scrambling systemAlgorithms offered include AES.COFDM RF outputOutput Frequency Band DependentOccupied Bandwidth 2.5 MHzPower 1 W or 2 WConnector SMACOFDM Standard Proprietary, 2.5 MHz channel spacing, OFDMbandwidth of 2.44 MHz with 400 carriers.
DTC COMMUNICATIONS, INC.18 TWO YEAR WARRANTYDTC Communications, Inc. (DTC) warrants its RF transmitting and receiving products to be free fromdefects in workmanship or material for a period of two (2) years from the date of shipment unlessotherwise stated.The liability of DTC, Inc. under this warranty is limited to replacing, repairing, or issuing credit, atoption, for any products, which are returned by the purchaser during such warranty period, provided:DTC is notified and a Repair Authorization Number is issued by DTC Customer Service within 30 daysafter discovery of such defects by Customer.The defective units are returned to DTC with transportation charged Prepaid by the Customer.Product damaged in shipment must be reported to and claim forms filed with the Carrier by theCustomer. In shipments to the factory, notice and claim procedures will be initiated by DTC.DTC’s examination of such products shall disclose to its satisfaction that such defects exist and havenot been caused by misuse, misapplication, neglect, improper installation, improper storage, alteration,physical damage or accidents.The warranty shall not apply to microphones, batteries, antennas, crystals or material ordinarilysusceptible to field damage or any accessories of a disposable nature. The warranty shall not apply toEngineering Prototypes or Customer requested modifications to electronic circuits.This warranty does not apply to and DTC does not independently warrant items or systems sold by DTCwhich are produced by other manufacturers. With respect to such items, the Customer shall look to thewarranty of the original manufacturer and DTC disclaims all warranty, expressed or implied.Nothing in this warranty, or any statement, brochure, bulletin, or advertisement is to be interpreted asestablishing the suitability of any product for particular application or use. Applications of the productand the determination of suitability for any application, is the sole responsibility of the Customer.
DTC COMMUNICATIONS, INC. 19CONTACT USDirectorState & Local Agencies & International SalesMichael Demos(Nashua Main Office Numbers)direct voice (603) 546-2120cell (603) 320-3255mdemos@dtccom.comSales RepresentativesNashua Main Office Numbersvoice (603) 880-4411toll free (800) 233-8639fax (603) 880-6965Director of Federal SalesJohn Morgan(Nashua Main Office Numbers)direct voice (603) 546-2122cell (603) 320-3257jmorgan@dtccom.comInside SalesChristine Guzman(Nashua Main Office Numbers)direct voice (603) 546-2217cguzman@dtccom.comME, NH, VTOEM Sales ManagerRalph Descheneaux(Nashua Main Office Numbers)direct voice (603) 546-2119cell (603) 738-3627rdeschen@dtccom.comREGIONAL SALES MANAGERSHoward Richtoll free (888) 819-8570voice (860) 626-8570fax (860) 626-8571NY, MA, CT, RI, PA, NJ, MD, DE,WV, DChrich@dtccom.comGreg Langleyvoice (702) 236-0021fax (702) 293-6448WA, OR, ID, MT, ND, WY, SDglang46@aol.comGary Nicholstoll free (866) 794-2823voice (765) 473-8917fax (765) 473-8920MN, WI, MI, IA, MO, IL,IN, OH, KY, NEgnichols@dtccom.comFrank Priolitoll free (800) 246-2610voice (727) 392-4761fax (727) 320-0509FL, GA, AL, MS, TN, NC,SC, VAfprioli@dtccom.comJoe Parkinsontoll free (800) 952-4914voice (909) 598-5110fax (909) 598-3120CA, AZ, NV, UT, HI, AKjparkinson@dtccom.comEd Bryantvoice (903) 725-7229fax (903) 725-7863TX, OK, AR,LA, NM, KS, COebryant@dtccom.comCONTACT USFederal Sales ManagerWalter Patenaude(Nashua Main Office Numbers)direct voice (603) 546-2161cell (413) 454-3651wpatenaude@dtccom.comInternational Sales ManagerDana Crawford(Nashua Main Office Numbers)direct voice (603) 546-2110cell (508) 320-7225dcrawford@dtccom.com
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