COFDM HDMI Receiver
COFDM Wireless video audio transmission
System advantages
1.Long range transmission distance
2.Real-time transmission systems
3.Delay time very short less than 500ms
4.Perfect image quality, brighter colors and image smoothness. (we will support video to demonstration it if you sent inquiry)
Product Features
1.Transmission power 1W
2.Extreme lightweight and rugged housing
3.Vibration and shock resistant
4.Applied COFDM modulation, MPEG-2 / H.264 compression
5.Small dimensions
6.Perfect for mobile applications
7.High quality of video transmission, no mosaic, no dragging phenomenon, stable power with adjustable dynamic power;
8.Support NLOS transmission, strong diffraction capability;
Technical Parameters
| Item | Description |
| Modulation Type | COFDM QPSK(4QAM), 16QAM, 64QAM |
| Working Frequency | 300-900MHz;( per 1M adjustable) |
| Antenna Gain | 2.15dBi |
| Transmission Power | 30dBm(Adjustable) |
| RF Bandwidth | 1.25/2.5/6/7/8MHz(optional) |
| FEC(forward error correction) | 1/2 2/3 3/4 7/8 |
| Guard Interval | 1/4,1/8,1/16,1/32 |
| Video Input | AV(PAL,NTSC) |
| Video Compression | MPEG-2,H.264 |
| Parameter Control Method | Adjustable digital LED control panel, 4-core aviation head |
| RF Interface | SMA F head |
| Encryption Method | 128 – bit AES (can set user’s password) |
| Working Voltage | DC12V |
| Working Current | Max 1.55A(@12V) |
| Working Temperature | -10~70℃ |
| Dimensions | 102*60*21.5 (mm)(antenna not included) |
| Weight | 170g(antenna not included) |
| Transmission Distance | 100meter high,5-7km distance |
Introduction
This product is a new kind of video wireless video equipment that adopts the latest technologies of COFDM modulation and MPEG-2 video compression that can complete video
transmission in high-speed motion and NLOS (non line-of-sight) conditions. The diversity receiving technology greatly improves the receiving quality in all conditions.
More COFDM HDMI Receiver products, please visit https://onvon.com
It 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 etc.
COFDM HDMI Wireless Video Receiver – High-Speed, Long-Range, Real-Time Transmission
The COFDM HDMI Receiver is a state-of-the-art wireless video and audio transmission system designed for professional, mobile, and industrial applications. Using advanced COFDM (Coded Orthogonal Frequency Division Multiplexing) technology and MPEG-2/H.264 compression, this receiver ensures high-quality video transmission under demanding conditions, including non-line-of-sight (NLOS) and high-speed motion environments. It delivers ultra-low latency, stable signals, and crisp, clear video, making it ideal for security, public safety, military, and UAV/drone applications.
System Advantages
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Long-Range Transmission – The COFDM HDMI Receiver is engineered to provide robust wireless video and audio transmission over long distances. Depending on environmental conditions, the system can achieve distances up to 5–7 kilometers in open line-of-sight (LOS) conditions and maintain reliable signal strength even in NLOS scenarios.
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Real-Time Transmission – Equipped with highly efficient video compression and transmission protocols, this system guarantees minimal delay, with latency of less than 500 milliseconds. Operators can rely on real-time video monitoring for critical applications such as UAV piloting, tactical operations, and emergency response.
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Superior Image Quality – The receiver supports high-definition video with bright colors and smooth playback. Advanced COFDM modulation combined with MPEG-2/H.264 compression ensures that video is transmitted without mosaic artifacts, dragging, or stuttering, even in challenging RF environments.
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Demonstration Support – Prospective clients can request a live demonstration to experience the superior image quality and performance firsthand.
Key Product Features
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Transmission Power: 1W adjustable RF output provides flexible transmission control for different application requirements.
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Rugged and Lightweight: Built with an extreme lightweight yet durable housing, the receiver is resistant to vibrations and shocks, making it ideal for mobile, outdoor, or vehicle-mounted applications.
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Compact Dimensions: With a footprint of 102 × 60 × 21.5 mm (antenna excluded) and a weight of just 170g, this receiver can easily be integrated into drones, vehicles, or handheld monitoring devices.
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COFDM Modulation: Supports QPSK (4QAM), 16QAM, and 64QAM, ensuring efficient spectrum utilization and robust performance in multipath and NLOS environments.
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Video Compression: Compatible with MPEG-2 and H.264 standards for high-definition video transmission while minimizing bandwidth consumption.
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Adjustable Digital Control: Parameters can be easily managed through a digital LED control panel or via a 4-core aviation connector for remote adjustments.
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RF Interface: SMA F-head antenna interface allows for flexible antenna configurations.
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Encryption: 128-bit AES encryption protects video content, with user-configurable passwords for enhanced security.
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Dynamic Power Management: Supports adjustable transmission power to optimize signal stability and energy efficiency.
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Environmental Resilience: Operates reliably in temperatures from -10°C to 70°C.
Technical Specifications
| Item | Description |
|---|---|
| Modulation Type | COFDM QPSK (4QAM), 16QAM, 64QAM |
| Working Frequency | 300–900 MHz (adjustable per 1 MHz) |
| Antenna Gain | 2.15 dBi |
| Transmission Power | 30 dBm (adjustable) |
| RF Bandwidth | 1.25 / 2.5 / 6 / 7 / 8 MHz (optional) |
| FEC (Forward Error Correction) | 1/2, 2/3, 3/4, 7/8 |
| Guard Interval | 1/4, 1/8, 1/16, 1/32 |
| Video Input | AV (PAL/NTSC) |
| Video Compression | MPEG-2, H.264 |
| Parameter Control Method | Adjustable digital LED control panel, 4-core aviation head |
| RF Interface | SMA F-head |
| Encryption Method | 128-bit AES (user-configurable password) |
| Working Voltage | DC 12V |
| Working Current | Max 1.55A (@12V) |
| Working Temperature | -10~70°C |
| Dimensions | 102 × 60 × 21.5 mm (antenna not included) |
| Weight | 170 g (antenna not included) |
| Transmission Distance | Up to 100 m vertical, 5–7 km horizontal (LOS), reliable NLOS transmission |
Product Overview
The COFDM HDMI Receiver is engineered for situations where high-quality, reliable, and low-latency video transmission is essential. The combination of COFDM modulation and MPEG-2/H.264 compression enables the system to maintain clear video feeds over long distances and through obstacles. Unlike traditional analog video transmission systems, this receiver mitigates interference and maintains stable transmission quality, even in complex environments with multipath signals or strong diffraction.
The device’s lightweight and rugged design ensures that it is easily transportable and durable enough for field use. Its compact size allows seamless integration into UAV systems, vehicles, and mobile monitoring setups, providing professional-grade wireless video solutions wherever required.
Applications
The COFDM HDMI Receiver is widely utilized in diverse professional fields, including:
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Public Safety and Emergency Services: Ideal for police, fire departments, first responders, and special forces who require real-time video transmission for situational awareness.
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Security and Surveillance: Perfect for secure monitoring in airports, ports, border control, and high-security facilities.
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Military and Tactical Operations: Provides reliable video feeds for command and control posts, reconnaissance, and field operations.
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Traffic Management: Supports live monitoring of traffic flow, accident sites, and incident management.
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UAV/Drone Systems: Offers long-range, low-latency video transmission for UAV pilots, inspection teams, and aerial photography professionals.
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Critical Infrastructure Monitoring: Enables remote observation of power plants, pipelines, and other high-value assets.
Advantages in Wireless Video Transmission
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High Stability: Advanced COFDM and diversity reception technologies significantly reduce signal dropouts and improve reception quality under complex conditions.
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NLOS Capability: The system can maintain transmission even when obstacles exist between transmitter and receiver, thanks to strong diffraction and multipath mitigation.
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Real-Time Performance: Ultra-low latency (<500ms) ensures immediate video feedback, crucial for UAV operation, emergency response, and live event broadcasting.
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User-Friendly Operation: Digital LED control panel and aviation connector simplify configuration and parameter adjustment, allowing operators to focus on mission-critical tasks.
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Secure Communication: AES encryption ensures that transmitted video and audio remain confidential and protected from unauthorized access.
Why Choose the COFDM HDMI Receiver?
The COFDM HDMI Receiver represents the next generation in wireless video technology. Its combination of reliability, durability, long-range performance, and low latency makes it an indispensable tool for professional video transmission. Whether deployed on a drone for aerial surveillance, in a security command center, or in tactical operations, this receiver ensures seamless, high-quality video communication under any conditions.
For more information and additional COFDM HDMI Receiver products, visit Onvon.com to explore our full range of solutions for professional wireless video applications.
