COFDM HDMI Transmission Transmitter Receiver
COFDM HDMI Transmission Transmitter Receiver full Set Wireless Digital Audio Video TX RX for UAV Drone 1080P Video SDI
- Material: Composite Material
- Tool Supplies: Assembled class
- Upgrade Parts/Accessories: Adapter
- RC Parts & Accs: Receivers
- Size: 90x64x23mm
- Use: Vehicles & Remote Control Toys
- Technical parameters: KV1100
- Model Number: COFDM
- Remote Control Peripherals/Devices: Receivers
- For Vehicle Type: Airplanes
- Four-wheel Drive Attributes: Assemblage
- Wheelbase: Upper Shell
- Modulation: COFDM
- working voltage: DC11V-DC13V
- Working current: 0.5W
- Carrier number: 2K
- transmission power: 2W
2000mw COFDM Telemetry Transmission Receiver Set 2W Wireless Digital Audio Video Transmitter for UAV Drone Video

Feature
- Highly integrated, modular combined design
- Using COFDM modulation technology, H.264 image coding technology
- It can transmit one channel of 1080P SDI (optional HDMI) signal, and one channel of up to 230400Kbps unidirectional data
- Lower delay, the minimum end-to-end delay is 350ms
- All-round communication, not afraid of building walls
- High-speed communication between traveling,
- Transmitter heat sink type aluminum case, shockproof and shockproof
- Non-line-of-sight (NLOS) mobile transmission, the distance is not less than 30 kilometers under the condition of line-of-sight (power greater than 2W)
- 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 |
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 |
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
– Aluminium case which 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: Does it support 5.0-5.13Ghz?
Answer 1:These system supports 1.429~1.445G
Question 2: I need at least a 30km range from air to ground for UAV.
Answer 2: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 antenna.
Question 3: I prefer 6dib for the airside, and 4000feet operating height, ok? Sure. Is there a possibility to get bidirectional data?
Answer 3: It supports.
Question 4: Is there a possibility to get bidirectional data?
Answer 4: Then the transfer distance should be almost 20km, the bidirectional data doesn’t support 30km.
Real Test in City NLOS (non-line of sight) supports 1.5km, Transmitter in the building, transmitter in the moving for UGV (unmanned ground vehicle)
COFDM Wireless video transmitter receiver transmission with removable configuration parameter set board
Real Test in the City NLOS, Transmitter at the building, and receiver with camera in the moving car, complex environment.
1.5km for ground NLOS, 10-20-30km LOS air to ground wireless video transmitter receiver transmission
Cheap Wireless video transmitter and receiver's small screen has great help on signal strength lock