COFDM-902T COFDM HD Wireless composite Video Transmitter 1080P CVBS SD 720P

wireless HDMI transmitter and receiver

COFDM-902T COFDM HD Wireless Composite Video Transmitter 1080P CVBS SD 720P

Selling Points

1～2W RF output;

HD 1080P, SD720P composite CVBS in

H.264/MPEG-2;

Delay <500ms;

100mm×43mm×10mm, 0.2kg

Product Features

• Working frequency can be adjusted from 170MHz ~ 930MHz
• Video, audio interface: HDMI digital interface and analog CVBS composite inputs (_SDI input is coming soon)
• High-quality digital video processing and H.264 / MPEG-2 video codec, HD quality
• Very short coding delay of 500 milliseconds
• High-speed mobile and multi-path interference stable transmission of images, video
• Powerful NLOS capability
• Having space diversity reception
• With encryption
• Default 1W transmit RF power, develop different 1~2W
• According to customer requirements, OEM or ODMs are customized

Specification

Working frequency	170MHz ~ 900MHz, be customized
Modulation method	COFDM
RF Output power	1~2W, can develop more power
Bandwidth	6/7/8MHz
Encryption	AES / AES2 / DES / DES2
guard interval	1 / 32,1 / 16,1 / 8,1 / 4
Technical standards	H.264 / MPEG-2
Video stream	2Mbps ~ 25Mbps
System delays	<500ms
BER	≤10-6
Transmission distance	1 ~ 10km
Compression format	H.264 / MPEG-2
Video input	HDMI, Analog CVBS video and audio
Audio input	Stereo, Right + Left
Image definition	1080P/I (1920×1080) is compatible with 720P, 480P and SD @ frame rate of 25 frames / sec.
Video input interface	3.5 mm headphone jack, HDMI
Audio input interface	3.5 mm headphone jack, HDMI
Power supply	VCC6V ~ 40V
Dimensions	100mm × 43mm × 10mm (L × W × H)
Weight	0.2kg

 

Product Overview

The COFDM-902T HD Wireless Video Transmitter is a compact, high-power COFDM-based wireless HDMI and CVBS video transmission solution designed for reliable long-range and NLOS applications.
It supports HDMI digital video and analog CVBS composite input, delivering stable 1080P / 720P / SD video with strong anti-interference performance.

With 1–2W RF output power, adjustable operating frequencies from 170 MHz to 930 MHz, and AES/DES encryption, the COFDM-902T is ideal for professional wireless video transmission in demanding environments such as public safety, UAVs, robotics, and mobile surveillance.

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Key Features

• COFDM modulation technology for high mobility and strong multi-path resistance

• Supports HDMI and CVBS composite video inputs (SDI input optional / under development)

• HD video up to 1080P, backward compatible with 720P and SD formats

• Low system latency < 500 ms

• High RF output power: 1–2W (higher power available on request)

• Wide frequency tuning range: 170 MHz – 930 MHz

• Excellent NLOS performance for urban and obstructed environments

• Space diversity reception for improved link stability

• Multiple encryption options: AES / AES2 / DES / DES2

• Compact and lightweight design, suitable for mobile and airborne platforms

• OEM & ODM customization supported

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Technical Specifications

RF & Transmission

• Modulation: COFDM

• Operating Frequency: 170 MHz – 900 MHz (customizable)

• RF Output Power: 1–2 W (higher power optional)

• Channel Bandwidth: 6 / 7 / 8 MHz

• Guard Interval: 1/32, 1/16, 1/8, 1/4

• Transmission Distance: 1 – 10 km (LOS, depending on environment)

• BER: ≤ 1×10⁻⁶

Video & Audio

• Video Compression: H.264 / MPEG-2

• Video Bitrate: 2 Mbps – 25 Mbps

• System Latency: < 500 ms

• Video Input:

  • HDMI (digital)

  • CVBS composite video

• Supported Resolution:

  • 1080P/I (1920×1080)

  • Compatible with 720P, 480P, and SD

• Frame Rate: 25 fps

• Audio Input:

  • HDMI audio

  • Analog stereo (Left / Right)

• Input Interface: HDMI, 3.5 mm audio/video jack

Power & Physical

• Power Supply: DC 6 V – 40 V

• Dimensions: 100 × 43 × 10 mm

• Weight: Approx. 0.2 kg

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Typical Applications

• UAV / Drone video transmission

• Law enforcement and public safety

• Robotics and EOD systems

• Mobile surveillance vehicles

• Firefighting and emergency response

• Temporary broadcast and field monitoring

• Industrial inspection and remote observation

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Customization Options

We offer flexible OEM and ODM services to meet specific project requirements, including:

• Custom operating frequency bands

• Adjustable RF output power levels

• SDI video input customization

• Encryption type and key configuration

• Housing, connectors, and interface customization

• Firmware and protocol customization