30Km long-distance COFDM HDMI Transmitter Wireless Video Transmission
30Km long-distance COFDM HDMI Transmitter Wireless Video Transmission system Receiver full Set Audio Video TX RX for UAV Drone 1080P 908T

- Material: Composite Material
Tool Supplies: Assembled class
Upgrade Parts/Accessories: Parameter Tool boarder
RC Parts & Accs: Receivers
Use: UAV, Vehicles & UGV
Technical parameters: COFDM
Model Number: COFDM-908T
Modulation: COFDM
working voltage: DC11V-DC13V
Working current: 0.5~2W (depend on different PA)
Carrier number: 2K
Transmission power: 0.5W~10W optional
30-150Km long-distance COFDM HDMI Transmitter Wireless Video Transmission system Receiver full Set Audio Video TX RX for UAV Drone UGV 1080P
Feature
- Highly integrated, modular combined design
- Using COFDM modulation technology, H.264 image coding technology
- It can transmit one channel of 1080P HDMI (optional SDI) signal
- Lower delay, the minimum end-to-end delay is 250ms
- All-round communication, not afraid of building walls
- High-speed communication between traveling,
- Transmitter heat sink type aluminum case, shockproof
- Support LOS and Non-line-of-sight (NLOS) mobile transmission
- The distance is not less than 30 kilometers under the condition of line-of-sight (2W power amplifier)
- The maximum moving speed can reach 600Km/hour (measured)
- Synchronous reception of audio and video signals, high-definition HDMI1080P multi-format optional, standard-definition output DVD image quality
- The receiver can realize video recording and backup functions
- 128-bit AES encryption and decryption
- Full customization available
Application
This product is mainly used in the technical reconnaissance and evidence collection of public security and safety inspection departments, real-time image transmission of unmanned aerial vehicles, unmanned ships, radio and television relay, radio and television live broadcast: broadcast field, sports broadcast, social news, air live, studio, mountaineering Expedition, and other aspects. It is suitable for real-time mobile transmission of high-quality images in various complex environments such as urban areas, seas, and mountains.
Transmitter Specification
modulation method | COFDM |
working voltage | DC11V~DC13V |
working current | 0.5W: ≤0.6A DC12V, 1W: ≤0.8A DC12V, 2W: ≤1.5A DC12V 5W: ≤2.0A DC12V 10W: ≤3.0A DC12V |
control interface | standard RS232 interface, 8 Data Bits, 1 Stop Bit, Parity Bit, Baud Rate: 19200 |
transparent data interface, | a one-way transparent serial port transmission, 8 Data Bits, 1 Stop Bit, support Odd Parity, Parity Bit, Wireless Parity, Baud Rate: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400 |
encryption methods | support 128-bit encryption |
modulation mapping | QPSK (4QAM), 16QAM, 64QAM |
forward error correction | 1/2 2/3 3/4 5/6 7/ 8 |
Guard interval | 1/32 1/16 1/8 1/4 |
Carrier number | 2K |
Frequency bandwidth | 2/3/4/5/6/7/8M Adjustable |
transmission code stream | 2000kbs~20000kbs Adjustable |
transmit power | 0.5W/1W/2W/5W/10W |
transmission frequency | Any Frequency Customizable, Step 1MHz |
a powerflatness | within10MHz bandless than 0.2dB |
ratio of shoulder | output power of 27dB, shoulder ratio is better than -30dB |
the second harmonic | ≤-45dB |
MER | 32Db |
input video | 720×480 60I(NTSC), 720×576 50I(PAL), 720 50P, 720 60P, 1080 50I, 1080 60I, 1080 24P, 1080 25P, 1080 30P, 1080 50P, 1080 60P, various modes are adaptive. |
HD interface | HDMI, SDI optional |
video encoding format | H.264 |
protection standard | all-aluminum radiator-type chassis, anti-corrosion, shock-proof design |
Overall size | 90*64*23mm |
Overall weight | ≤0.20KG |
Receiver Specification
Machine Rack-mounted multi-bandwidth HD receiver parameters | |
Receive frequency range | 170-860MHz VHF&UHF |
frequency bandwidth | 2/3/4/5/6/7/8MHz, optional |
RF input level | -94dBm~-15dBm (8M bandwidth)/-98dBm ~-15dBm (2M bandwidth) |
RF input impedance | 50 ohms |
RF input connector | N-head |
demodulation mode | COFDM |
constellation mode | QPSK, 16QAM, 64QAM (optional) |
forward error correction | 1/2, 2/3, 3/4, 5 /6,7/8 (optional) |
carrier number | 2k, |
guard interval | 1/32, 1/16, 1/8, 1/4 (optional) |
video decoding | [email protected]/H.264 |
aspect ratio | 4: 3 16: 9 |
video image is | 720 * 576 @ 8MHz 1080P @ 60P |
audio output mode | stereo unbalanced 300 / 200mv |
audio output | output2Audio + 2Video output |
operating voltage | AC220V / DC12V <0.5A |
Operating temperature | – 20℃~+50℃ |
Appearance size | 480*260*45 (1U) chassis |
equipment weight | 1.5kg (two-way language 2.5Kg) |
Note: the default connector is HDMI, if you need the cheaper model, a connector for CVBS Yellow video connector 720p HDMI, please Check here for another model.
Description:
– This device adopts COFDM technology, which integrates transmission antenna, digital modulation, audio, and video function.
– Compact size, small heat, and long transmission range
– compatible with a small camera, could enable HD image capture and transmission
– the transmission range will be longer if adopts high gain antenna
– Transmission range: 5000m (without any interrupt)/500M with obstacles interrupt
This listing is for 2W, transmission range is around 700m in the city
Features:
– Compact size, modulation design
– Adopts COFDM modulation technology, MPEG-2 image com compression technology
– Omnidirectional communication
– high-speed communication enables real-time audio and video transmission
– An aluminum case that is shockproof
– NLOS transmission
Specifications:
Transmitter:
– Size:90x64x23mm
– weight:200g
– antenna:22mm
Receiver
– size: 87x70x20mm
– weight:200g
– Antenna height:42.5cm (could be bend)
Technical specification
– Modulation:COFDM
– working voltage:DC11V-DC13V
– Working current:0.5W: less than 0.6A @ DC12V
– control port: standrad RS232 port. 8 bit data bits,1 bit stop bit,Baud rate:19200,support odd parity check
– transmission data port:8 bit data bits,1 bit stop bit,Baud rate,1200,2400,4800,9600,19200,38400,57600,115200,230400
– Encryption:support 128 encryption
– Modulation mapping: QPSK (4QAM),16QAM,64QQAM
– Forward error correction: 1/2,2/3,3/4,5/6,7/8
– Protect the interval: 1/32,1/16,1/8,1/4
– Carrier number:2K
– Frequency bandwidth:2/3/4/5/6/7/8M adjustable
– transport stream:2000kbs-20000kbs adjustable
– transmission power: 2W
– transmission frequency:could be customized,step is 1Mhz
– power flatness: less than 0.2db within10Mhz
– Second harmonic: less than -45db
– MER:32db
– input video:1Vp-p,75ohm
– Video program format:MPEG-2
– Video quality: 720×576 when above 4M
– Format: NTSC and PAL could be setting
Receiver technical specification:
– Receiver frequency range: 170-860Mhz, VHF and UHF
– Frequency bandwidth: 2/3/4/5/6/7/8 Mhz ,adjustable
– RF input level:-94dbm-0dbm at 8M/-98dbm-0dbm at 2M
– RF input impedance: 50ohm
– RF input port:SMA
– modulation:COFDM
– The constellation way: QPSK,16QAM,64QAM optional
– Forward error correction: 1/2,2/3,3/4,5/6,7/8 optional
– Carrier number:2K
– Protection gap:1/32,1/16,1/8,1/4
– Screen rate:4:3,16:9
– video image:720×576 @6Mhz
– Auido and video output port: standard 3.5 port
– Working voltage:DC12V 0.3A
Package included:
– 1 x transmitter
– 1 x receiver
– 1 set x accessories
FAQ
Question 1: I need at least a 30km range from air to ground for the UAV UGV USV.
Answer 1:Our system supports it, it should use a 2W power amplifier, it is better to use the special long transmitter antenna and two higher receiver antennas.
COFDM-912T VS COFDM-908T


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