DTC Communications PD2TX1000SV COFDM Video Transmitter User Manual

DTC Communications Inc. COFDM Video Transmitter

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Palladium II DigitalCOFDM TransmitterModel Pd2-TX-1000 1W OutputThe most important thing we build is trust

2PN OP1920331 REV. Ccopyright noticeCopyright © 2005-2010COBHAM All rights reserved. No part of this document may be reproduced, transmitted, tran-scribed, stored in a retrieval system or translated into any language or computer language, in any form or by any means, including but not limited to electronic, magnetic, mechanical, optical, chemical, manual or otherwise, without the prior written permission of COBHAM. disclaimerThe information in the document is subject to change without notice. COBHAM makes no representations or warranties with respect to the contents hereof, and specifically dis-claims any implied warranties of merchant-ability or fitness for a particular purpose. COBHAM reserves the right to revise this publication and to make changes from time to time in the content hereof without obliga-tion of COBHAM to notify any person of such revision or changes.how to contact COBHAMFor operator and troubleshooting informa-tion, customers are encouraged to refer to the details in this manual. For additional clarification or instruction, or to order parts, contact COBHAM.Customer Service is available Monday through Friday between the hours of 9:00 AM and 5:00 PM EST at:Tel: 603-880-4411Fax: 603-880-6965Website: www.cobham.com/dtcEmail: dtc.info@cobham.comDTC Communications dba Cobham Surveillance486 Amherst StreetNashua, New Hampshire 03063

3NOTE: Describes special issues you should be aware of while using a particular function.WARNING: Calls out situations in which equipment could be damaged or a process could be incorrectly implemented, but in which operator safety is not a factor.TIP: Describes application hints.RF EXPOSURE STATEMENTA separation distance of at least 20 cm must be maintained between the antenna and the body of the user or nearby persons. When the unit is used consistent with the previous notice, it conforms to the requirements of FCC Rules & Regulations, sections 1.1307, 2.1091 & 2.1093, as required by section 90.1217.NOTE: This device is for occupational use only. Occupational users are those persons who are exposed as a consequence of their employment, provided these persons are fully aware of and exercise control over their exposure.NOTE: DO not allow the device to directly contact the skin due to warm operating temperatures.manual conventionsQuick Start ....................................................................................................................4-5Accessories ........................................................................................................................ 5Introduction ........................................................................................................................ 6Operation ........................................................................................................................ 7Using your Palladium II Transmitter .............................................................................. 7Changing your Transmitter Configuration ................................................................. 7Heat Sink ....................................................................................................................8-9Components .............................................................................................................. 10-11Programming .............................................................................................................. 12-19System PC Controller Application Software ...........................................................12Transmitter Control Application ...................................................................................13Specifications .............................................................................................................. 20-21Warranty ......................................................................................................................22Contact Us ......................................................................................................................23 TABLE OF CONTENTS

4AntennaAudioCameraPower SupplyPower OptionPALLADIUM II1. Connect the transmitter antenna to the SMA connector on the Palladium unit.2. If you plan to use audio, connect one or two microphones to the Audio 1 and/or Audio 2 LEMO connectors. If using monaural, use Audio 1.3. Connect power and video input via the Multi I/O cable to the 6-pin Hirose connector: a. Attach your camera video input (75 ohm composite video source in PAL or NTSC) to the Multi I/O cable BNC connector. b. Apply the necessary power to your camera (use supplied cable or external source) and turn ON. c. Attach a 12 VDC power source to the Multi I/O cable via the Molex connector. The input voltage range is from 10 to 16 VDC. WARNING: Do not apply power to the transmitter unless an antenna or non-radiating load is connected to the Antenna SMA connector.Complete these steps:Typical Wiring ConfigurationQUICK START A2 L A1 R/MPalladium Transmitter, Top View 23Thermal IssuesProper heat sink mounting is recommended for optimal performance. See page 8 for heat sinking instructions.

5QUICK START4 Set to the required configuration as indicated by the channel numbers. Refer to the Programming section on page 10 for more information on channel settings. Your Transmitter is now operational. Confirm its signal with your Palladium Receiver.Accessories• 12 VDC 2.5A Power Supply & AC Line Cord• Microphone, Body-Worn, (2)• Power & Video Cable • Camera Power Cable (2.1 mm plug)• DC Power Cable, flying lead• Camera Power Cable, flying lead• Programming Cable• Antenna, ANT2A• Palladium II Configuration Software • 16-Pin Data Chaining & Control Connector Cable• Transport Case4Palladium Pd2-TX-1000 Transmitter, Front View Antenna Connector

6INTRODUCTIONPalladium Pd2-TX-1000 1 Watt Digital TransmitterPalladium IIThe Palladium II Series of digital video transmitters provide exceptional video quality in high multipath environments. They are ideal for use inside buildings, in urban areas, and in other applications where multipath would normally cause video tearing or breakup.All Palladium II Series transmitters offer three bandwidth modes: DVB-T (6, 7, 8 MHz), Narrow (2.5 MHz), and Ultra Narrow (1.25 MHz) channel spacing. DVB-T utilizes 2000 carriers to transmit video and two channels of voice and data. Palladium II transmitters may be located on adjacent channels without a guard band. AES 128-bit encryption ensures users of secure communications.The Palladium 1000 is a small transmitter with a 1 Watt RF power output. This unit is ideal for concealments and shorter range robotic and UAV applications. The package is only 4.2” x 2.8” x 2.5” (approximate dimensions not including connectors). Power consumption is 29 Watts maximum. All connections are conveniently located off the ends of the unit. The unit is water-resistant if mounted with its SMA connector pointing directly upward (with antenna connected).

7OPERATIONUsing your Palladium II 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 indicated channel and RF ON state. The Alarm LED may be ON, which indicates that there is no active video input.Changing your Transmitter ConfigurationThe Palladium Transmitter can store up to 8 different configurations, which can be selected with the Channel Control. Each of these configurations can be programmed into the transmitter with the supplied DTC Programming Software and a Windows PC. Refer to the Programming section on page 10 for more information.To cycle through your preconfigured channels rotate the knob to the next setting.

8HEAT SINKHEAT SINK2.5303.935

9HEAT SINKPalladium 1000 Heat SinkThe Palladium 1000 is supplied with a heat sink attached. DO NOT remove the heat sink unless you have an alternate mounting surface that will dissipate the heat properly. WARNING: The Palladium 1000 may become too hot to touch without a proper heatsink attached, such as the one supplied. Damage to internal components may occur if operated beyond the recommended temperature range. If placed in an enclosure, proper ventilation and mounting is required. If designing a custom heatsink, keep the transmitter chassis temperature at 50oC or less. The transmitter must be mounted to a heatsink on the transmitter’s “blank side” as shown on page 8.

10COMPONENTSAudio 2 (left) and Audio 1 (right/mono) LEMO Conn. These connectors provide the audio input connections to the transmitter. Either one or two audio inputs can be used with the Palladium II Transmitter.ALARM LED This red LED indicates a valid video signal is not present. Controls/ConnectorsData Chaining & Control Connector This connector is normally covered.Multi-I/O Connector The Multi-I/O Connector is covered on page 11. Channel Switch This rotary switch selects from up to eight preprogrammed configura-tions.

11COMPONENTSTransmitter Antenna Connector (SMA) This connector attaches to the transmitter antenna and carries the RF output signal. Always ensure the transmitter antenna is attached before operating the Palladium Transmitter. Muiti I/O Connector (6-pin Hirose) This connector provides connections for the DC Power Input, DC Camera Power, Programming, and 75 Ohm Composite Video Signal.1 GroundVideo In 75 Ohm 6 RS232 In 5 RS232 Out 4 2 +V Power10V - 16V3 Camera Power Out 10V -16V

12AntennaAudioCameraPower SupplyPower OptionPALLADIUM IIPROGRAMMINGSystem PC Controller Application SoftwareAdvanced control of the system is available by using the PC control application software. Typically users may want to customize the default configurations to con-trol settings such as frequency, scrambling keys, modulation parameters, and video resolution.The transmitter is controlled by the application DTC_tx_ctrl_v1_3.exe (or higher) available on the CD delivered with the product.A PC is required with an available RS232 Serial COM port to control the transmitter.Installation of the control program is as simple as copying the file from the CD to a suitable location on the PC. No install shield routine is launched. Note that the application generates its own log and initialization files, so it is best to create a dedicated directory for these applica-tions, perhaps with links to the applications from the desktop of the PC.Getting Started•Use the supplied programming cable to con-nect the chosen COM port of your PC to the transmitter to be configured.•Launch the application by double clicking or using the Run... command.•Connection with a transmitter should be au-tomatic, but the user can force selection of the correct COM port using the drop down, followed by the Connect button.•Select the channel to be configured from the unit’s front panel Channel Switch.•Click Refresh in the application to display the current configuration.•Update the current settings in the applica-tion, then click Apply to save to memory.PROGRAMMING CABLE toPC SERIAL RS-232 PORTAUDIO INPUT(S)ANTENNA10 AA BATTERY PACKTELEMETRY Palladium IIVIDEO TXPROGRAMMINGCABLETo PC Serial RS-232 PORT

13PROGRAMMINGTransmitter Control ApplicationOutput Frequency (MHz)The Output Frequency setting allows selection of TX output frequency in increments of 0.250 MHz within the allowed tuning range of the unit. If the unit is set to a frequency that is not an integer multiple of 0.25 MHz, the unit will be automatically set to the closest frequency that is an integer multiple of 0.25MHz.Modulation BandwidthModulation Bandwidth is the actual channel bandwidth that the wireless video link will occupy. The DVB-T compliant mode requires a bandwidth setting of 6, 7 or 8 MHz. The narrowband mode bandwidth is either 1.25 or 2.5 MHz. Narrower bandwidths increase receiver sensitivity and extend the maximum distance of the link, however video quality and latency will suffer. Normal default for good quality video is 2.5MHz. The modulation bandwidth may be set to 1.25 MHz, 2.5 MHz, 6 MHz, 7 MHz, or 8 MHz.Modulation Output This control is used to turn ON and OFF the RF output. It must be ON for operation. Turn the transmitter RF power ON by selecting ON and Apply from the application.Narrowband FECNarrowband FEC sets the forward error correction rate in the narrow bandwidth modes of 1.25 or 2.5 MHz. Tthe two rates are available are 1/3 and 2/3; the normal default setting for good quality video is 2/3. Chang-ing the FEC rate to 1/3 will extend the receiver sensitivity by 2 to 3 dB at theexpense of degraded video quality and longer latency.Narrowband Guard IntervalNarrowband guard interval is used in the narrowband modes of 1.25 and 2.5MHz to adjust for varying multi-path delay conditions. The default is 1/16 however 1/8 can be selected if necessary to deal with extreme multi-path delays on long links. Select-ing 1/8 guard interval could cause a degradation in video quality and latency.Narrowband ModulationNarrowband modulation is used in the narrowband modes to select between QPSK and 16QAM modulation. For best range with good video quality, QPSK is used; 16QAM will give better video quality but will cut down the link range by approximately 50%.

14PROGRAMMINGDVBT Service NameDVB-T service name is a place to assign a name for the DVB-T configuration. Press Apply to save the new name.DVBT FEC RateDVB-T FEC rate selects forward error correction rates in the wideband DVB-T modes. Options are 1/2, 2/3, and 3/4, with 1/2 giving best range and 3/4 possibly giving better video quality under certain conditions, recommended default is 1/2. DVBT Guard IntervalDVB-T guard interval selects guard intervals in the wideband DVB-T modes between 1/32 and 1/4. Use the smallest guard interval that will allow reliable low error rate communications, this parameter may need to be adjusted when the link is relocated; the recommended default is 1/16.DVBT ModulationDVB-T modulation selects the modulation used in the wideband DVB-T mode. Modulations QPSK, 16QAM, or 64QAM can be selected. QPSK will give best distance and in most cases very good video quality and low latency.DVBT Spectrum InversionDVB-T spectrum inversion allows flipping the modulated spectrum to compensate for spectrum inversion that may take place on the receiver side due to high side LO injection.DVBT 4 KHz OffsetDVB-T 4 KHz offset is not normally used but might improve BER in cases where the TX upcon-verter I/Q balance is poor.

15PROGRAMMINGPreset Transmit ModePreset transmit mode allows the user a convenient means of automatically setting bandwidth, FEC, modulation and video frame rate/compression based on link distance requirements. Op-tions are: None (preset mode not used), Short Range, Medium Range, Long Range, Ultra Long Range.Output PowerOutput power selects one of two output power attenuator settings; low power or high power, typically the low power setting is the larger of the two attenuator settings and is used, for instance, if a power amplifier is added to the transmitter and the output power needs to be lowered substantially to prevent overloading the input of the power amplifier.Output Attenuation (dB)Output attenuation (dB) is the high power attenuator setting.This control can be used to make minor adjustments to the output power level, but in normal operation should NOT be changed from factory settings. (0 attenuation = full output power, greater than 0 attenuation = reduced power in 0.25 dB steps.)Output Attenuation low (dB)Output attenuation low (dB) is the low power attenuator setting.

16PROGRAMMING Video InputVideo input selects the video format going into the MPEG video compressor. Options are: OFF (no video input typically used when link is used for data only), PAL, NTSC, NTSC no pedestal, S-Video PAL, S-Video NTSC, S-Video NTSC no pedestal.MPEG ModeMPEG mode selects the MPEG compression being used, options are: MPEG2 or MPEG4. MPEG4 mode has to be used when in the 1.25 MHz bandwidth mode since this mode uses a nonstandard frame rate that is not supported by MPEG2.MPEG4 Encoding ModeMPEG4 encoding mode selects the characteristics of the MPEG4 compression. Options are: low delay interlaced, standard delay interlaced, low delay progressive, standard delay progressive, and SIF. Interlaced scanning is what is used in conventional over-the-air video. Progressive scan is available on some cameras and involves scanning an entire frame in one pass rather than two in interlaced scanning. SIF is a bandwidth-conserving camera scan mode that cuts resolution in half in both the horizon-tal and vertical.MPEG4 Frame RateMPEG4 frame rate selects the frame rate used in the MPEG4 mode, full frame rate is 30 fps for NTSC and 25 fps for PAL a frame rate of 1/2 or less has to be used in 1.25 MHz bandwidth mode. Options are: Full, 1/2, 1/4, 1/8. or 1/24.Video Bitrate (status only)Video bitrate is a status window that will display the video transport data rate, this varies with bandwidth, modulation, FEC rate and guard interval. The rate will increase with bandwidth and higher levels of modula-tion, it will go down as the FEC rate and guard interval are increased. The video bit rate will also decrease as other service options are activated such as audio and data channels. As a rule video quality and latency improve as the bit rate is increased. Horizontal ResolutionHorizontal resolution determines the maximum number of horizontal Pixels that can be sampled by the video encoder. For optimal performance this setting should be set to the first value that exceeds the hori-zontal resolution of the camera in use. Options are: 352, 480, 528, 704 pixels.

17PROGRAMMINGVideo SharpnessVideo sharpness is a filter that may be switched in to smooth out blockiness in the video.Audio EncoderAudio encoder selects quantity of active audio channels (2 maximum), sampling rate (8, 16 or 32 KHz) which determines upper frequency response, and sampling bits (8 or 12) which determines audio signal to noise. Options are: Off, 8 KHz 8 bit stereo, 16 KHz 8 bit mono, 16 KHz 8 bit stereo, 32 KHz 8 bit mono, 32 KHz 8 bit stereo, 32 KHz 12 bit mono, 32 KHz 12 bit stereo. Audio Input LevelAudio input level selects the audio preamp gain level, options are: 0 dB, 12 dB, 24 dB, 36 dB, 48 dB. Use 24 dB for DTC supplied microphones. Note: 3.5 VDC phantom power is at the microphone input for powering electret condenser microphones.Unit NameUnit name allows the user to enter a name (up to 8 characters) for the transmitter that will be stored in memory.Sleep ModeSleep mode shuts down most functions in the transmitter except the control functions. This can be used to conserve battery power and yet allow the transmitter to become active again with a simple command.DataData allows activation of the RS232 half duplex serial data channel and to select parity mode.Data Baud RateData baud rate selects data channel baud rate, standard rates between 1200 and 115,200 baud are available.

18PROGRAMMINGChaining InputChaining input activates the chaining data port. This is not normally used except in repeaters and high speed data transmission products.Chain NumberChain no. (not normally used) assigns a chaining tag number to the stream associated with the transmitter’s video encoder. This can be user-defined to 0, 1, 2, 3, 4, 5, 6, 7, 8, or 9. Normally 0.Chaining OutputChaining output (not normally used) assigns the output of the video encoder to the chaining port. Normally OFF.Current ConfigurationCurrent config indicates the preset that is currently being programmed or viewed, this should be the same as the preset selected by the channel switch. Enter channel number and click Ap-ply to change.ScramblingScrambling selects 3 different scrambling options: OFF (no scrambling), AES128, AES256 (op-tional), or ABS (a proprietary 32 bit scrambling algorithym).Heartbeat EnableHeartbeat enable activates a flashing block on the screen video graphic to indicate that a link is still functioning even if there is no motion on screen.NOTE: Chaining is digital signal input and output through the 16-pin Data, Chaining, and Control Connector.

19PROGRAMMINGFileChange Logfile – opens a standard Windows file save dialog box which allows the user to change the path and name of the log file generated by the application.Exit – exits the control application.OptionsTimeouts – password protected access to change timeouts used during the serial communi-cations between the unit and the controller.Engineering – password protected access to further diagnostic and calibration features.Write License Code – open a further password protected box for entering license codes for future upgrade. Change RS232 address – Changes RS232 address of configuration port, which is normally set to 1.Write AES Key – opens a dialog box for entering a customer-selected scrambling key. A key is a combination of 32 hexadecimal characters (64 for optional 256-bit encryption). Hexadecimal characters are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, and F. The receiver and transmitter must have identical AES keys.Restore Defaults – restores factory default settings in the transmitter. User should NOT select Restore Defaults.Polling Enabled – selecting this option makes the control application automatically refresh the data presented to the user every few seconds.Polling Options – selecting this option opens a dialog box for entering a customer-selected polling interval (in milliseconds).

21SPECIFICATIONSVideo Bitrates 1Mbps to 10 MbpsVideo Latency End to end delay of 54 millisecondsAudio EncodingInput Stereo or Dual Mono pairBitrates 28 kbps to 72 kbps depending on configurationSampling Frequency 32 kHz, 16 kHz or 8kHzTHD < 0.1% maxResponse 20Hz to 15KHz, +/- 0.25dB depending on configurationCrosstalk > 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 dBuScramblingScrambling type Fixed key scrambling system Algorithms offered include AES.COFDM RF outputOutput Frequency Band DependentOccupied Bandwidth 1.22/2.44 MHzPower 1 WattConnector SMACOFDM Standard Proprietary, 2.5 MHz channel bandwidth.DVB-T 6, 7, 8 MHz Bandwidth

TWO YEAR WARRANTYDTC Communications, Inc. (DTC) warrants its RF transmitting and receiving products to be free from defects in workmanship or mate-rial for a period of two (2) years from the date of shipment unless otherwise stated.The liability of DTC, Inc. under this warranty is limited to replacing, repairing, or issuing credit, at option, 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 days after 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 the Customer. 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 have not been caused by mis-use, misapplication, neglect, improper installation, improper storage, alteration, physical damage or accidents.The warranty shall not apply to material or accessories ordinarily susceptible to field damage or of a disposable nature. Exam-ples include batteries, antennas, microphones, headsets, cases, accessory bags, etc. The warranty shall not apply to Engineering 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 DTC which are produced by other manufacturers. With respect to such items, the Customer shall look to the warranty 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 as establishing the suit-ability of any product for particular application or use. Applications of the product and the determination of suitability for any application, is the sole responsibility of the Customer.

23CONTACT USCONTACT USContact InformationNashua Main Office Numbers486 Amherst StreetNashua, New Hampshire 03063 USA(T) 603 880- 4411(F) 603 880- 6965Toll Free in the USA 1- 800 233- 8639REGIONAL SALES MANAGERSHoward Richtoll free (888) 819- 8570voice (860) 626- 8570fax (860) 626- 8571NY, MA, CT, RI, PA, NJ, MD, DE, WV, DChrich@cobham.comGary Nicholstoll free (866) 794-2823voice (765) 473-8917fax (765) 473-8920MN, WI, MI, IA, MO, IL, IN, OH, KY, NEgnichols@cobham.comJoe Parkinsontoll free (800) 515-0599voice (928) 443-9399 fax (928) 443-9302CA, AZ, NV, HI, UT, AKjparkinson@cobham.comInside SalesLaw Enforcement1-800 233-8639Military1-800 233-8639OEM1-800 233-8639 A complete listing of Contact Individuals can be located on our website at:www.cobham.com/dtcEd Bryanttoll free (800) 396-0295voice (903) 725-7229fax (903) 725-6952CO, KS, OK, AR, NM, TX, LAebryant@cobham.comPhil Desmond toll free (800) 233-8639 voice (603) 546-2217fax (603) 880-6965NH, VT, ME, WA, OR, ID, MT, ND, WY, SDpdesmond@cobham.comFrank Priolitoll free (800) 246-2610voice (727) 392-4761fax (727) 320-0509FL, GA, AL, MS, TN, NC, SC, VAfprioli@cobham.comFederal Sales Len Corasanitivoice (202) 870-3905fax (410) 544-6538CO, KS, OK, AR, NM, TX, LAlcorasaniti@cobham.com

486 Amherst Street • Nashua, New Hampshire 03063 • 603-880- 4411 www.cobham.com/dtcCobham Surveillance

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