COFDM ST-6000b流动电视录像传输设备

COFDM 80KM long-range Knapsack Digital Wireless Video Transmission system, mobile and NLOS (non line-of-sight) transmission Introduction: The Knapsack Digital Wireless Video Transmitter adopts the latest technologies of COFDM modulation and MPEG-2 image compression that enables good NLOS (Non line-of -sight) transmission with DVD quality video. The transmitter is compact size with power amplifier for longer-range transmission. This system has been widely used in many fields such as: Police Forces, First Responders, Security Services, Fire Services, Port Security, Homeland Security, Traffic Management, Police Technical Support Units, Special Forces, Military Command and Control Posts, Airport, Border Control, Major Incident Support. Features: 1. COFDM modulation, Stable transmission 2. MPEG-2 video compression, DVD video quality 3. Lithium battery for power supply 4. Mobile and NLOS(Non line-of-sight) transmission 5. Great security by encryption of AES 128 bit/ALLTECH Basic Scrambling 6. Low system latency 7. Modular design, compact structure, small cubage 8. Several wavebands available: VHF/L/ S 9. Strong casing with built-in cooling plates, waterproof and shockproof 10. In LOS (line-of-sight)environment, the transmission range is up to 80kmTransmitter SpecificationModulationCOFDMDC InputDC12.5V DC16.8VWorking Current≤3.8A/DC12.5VRS232 Control InterfaceStandard RS232 level, 9600,8,N,1RS232 Data InterfaceStandard RS232 level, supporting 1200 115200ConstellationQPSK,16QAM,64QAM (optional)FEC1/2,2/3,3/4,5/6, 7/8 (optional)Guard Interval1/32,1/16,1/8,1/4 (optional)BandwidthMV2000TBH:6/7/8MHz;MV2025TBH :1.25/2.5MHz,6/7/8MHz (optional)A/V InterfaceBNC / RCAFrequency325MHz-399MHz,400-500MHz (customized),560MHz-760MHz,760MHz-860MHz (customized),1.0-1.4GHz (customized),2.3-2.5GHz (customized)Frequency is adjustable continuouslyEncryptionAES 128 bit / ALLTECH Basic scramblingRS232 serial port for configurationFlatness≤2dB (within full frequency range );≤0.5dB (within 8MHz)Carrier2KPower Output27-33dBm (adjustable) in 1dB stepCNR≥-30dB @ 30dBm power outputSecond Harmonic≤-43dBVideo Signal1Vp-p@75Ω,PALCBER<2.0E-4Video CompressionMPEG-2 4:2:0 /MPEG-4 (optional)Resolution720x576 @ 8MHz, 352x288 @ 1.25MHzBattery14.8V / 8.2AHFrame Weight1.1 kgCasing ProtectionIP66 (dustproof, waterproof)Video Rate500Kbps--15Mbps(MAX)Dimension238mm*140mm*78.5mmWeight2.7kgReceiver SpecificationRx Frequency170 860MHz VHF & UHFBandwidth6/7/8MHz, 2.5/1.25MHz(optional)RF Level Input-92dBm -20dBm / -105dBm -20dBmRF Impedance50ΩRF InterfaceN femaleModulationCOFDMConstellationQPSK,16QAM,64QAM (optional)FEC1/2,2/3,3/4,5/6,7/8 (optional)Carrier2K, 8KGuard Interval1/32,1/16,1/8,1/4 (optional)Video DecodingISO/IEC13818-2 MPEG-2MP@MLAspect Ratio4:3, 16:9Resolution720x576 @ 8MHz, 352x288 @ 1.25MHzAudio OutputStereo unbalanced (300/200 mV)AV Output2 audio+ 2 videoDecryptionAES 128 bit / ALLTECH Basic scramblingRS232 serial port for configurationWorking VoltageAC220V / DC12VTemperature-20°C +50°CDimension480mm*260mm*44mm (1U Aluminium alloy box)Weight3.5 kg