COFDM Wireless Transmitter
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Table of Contents
Overview
The COFDM Wireless Transmitter is a professional-grade, high-performance video transmission solution designed for aerial, mobile, and remote video applications. Utilizing Coded Orthogonal Frequency Division Multiplexing (COFDM) technology, this system ensures robust, real-time HD video transmission with minimal latency and strong resistance to interference caused by multipath propagation, obstacles, or high-speed movement.
With HDMI, SDI, and CVBS input compatibility, the transmitter supports a wide range of video sources, including action cameras, professional cameras, drones, and mobile recording systems. The COFDM Wireless Transmitter is engineered for long-distance line-of-sight (LOS) transmission while maintaining high-quality video clarity and stable frame rates even in non-line-of-sight (NLOS) environments. Its compact and lightweight design makes it ideal for UAVs, drones, security vehicles, mobile news collection units, and field monitoring equipment.
Designed with advanced H.264 and MPEG-2 video compression, this transmitter guarantees smooth, sharp images with natural colors, stable brightness, and minimal motion artifacts. The system is suitable for applications that demand real-time transmission with low latency, such as drone reconnaissance, emergency response, live broadcasting, and mobile surveillance.
Key Features
- High-Definition Video Transmission
- Supports HDMI, SDI, and composite CVBS video input.
- High-resolution video up to 1080P, backward compatible with 720P and 480P sources.
- H.264/MPEG-2 compression ensures high-quality image transmission while minimizing bandwidth usage.
- Advanced COFDM Modulation Technology
- Employs QPSK, 16QAM, or 64QAM modulation for each subcarrier.
- Excellent resistance to multipath fading, Doppler effects, and electromagnetic interference.
- Provides reliable NLOS transmission, suitable for urban, forested, and complex environments.
- Low Latency and Real-Time Transmission
- System delay typically under 500ms, ideal for UAV control, live monitoring, and professional video broadcasting.
- Smooth motion rendering and stable frame rates prevent mosaic or drag effects in video transmission.
- Flexible RF Output and Frequency
- Default RF output: 1W (higher outputs available up to 5W or customized per project requirements).
- Operating frequency: 300 MHz to 5.8 GHz, customizable for regional regulations and project needs.
- Channel bandwidth options: 2 MHz, 4 MHz, 6 MHz, 7 MHz, 8 MHz, adjustable per user requirements.
- Compact, Rugged, and Lightweight Design
- Dimensions: typical TX size ~100 × 43 × 10 mm; weight ~0.2 kg.
- Shock-resistant, vibration-proof, and suitable for high-speed UAVs or mobile platforms.
- Easy to integrate into aerial, vehicle-mounted, or portable video systems.
- Multiple Receiver Compatibility
- Works seamlessly with COFDM receivers via USB, HDMI, or Wi-Fi interfaces.
- Can simultaneously support multiple receivers for monitoring on mobile devices, tablets, or portable monitors.
- Encryption & Security
- AES128/AES256 optional encryption ensures secure and private video transmission.
- Configurable password-protected channels to prevent unauthorized access.
- Ultra-Low Power Consumption
- TX power consumption: 5–7.5 W depending on output level.
- Supports DC power input from 5V to 36V, making it ideal for UAV, vehicle, and battery-powered applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Modulation Type | COFDM (QPSK, 16QAM, 64QAM) |
| Video Compression | H.264 / MPEG-2 |
| Video Input | HDMI, HD-SDI, CVBS |
| RF Output Power | 1W (default), up to 5W (optional) |
| Frequency Range | 300 MHz – 5.8 GHz (customizable) |
| Bandwidth | 2 / 4 / 6 / 7 / 8 MHz |
| System Delay | <500 ms |
| Transmission Distance | LOS: >15 km; NLOS: 0.6–2 km (depending on environment) |
| Bit Error Rate | ≤10^-6 |
| Image Resolution | 1080P / 60 fps; backward compatible 720P/480P |
| Encryption | AES128 / AES256 (optional) |
| Dimensions | 100 × 43 × 10 mm |
| Weight | 0.2 kg |
| Power Supply | DC 5–36V |
Applications
- UAV / Drone Video Transmission
- Real-time HD video downlink for aerial filming, surveillance, inspection, mapping, and search & rescue operations.
- Supports multiple UAV types including micro and professional drones.
- Broadcast and Media Production
- Ideal for live news coverage, sports events, or film production where wireless HD video transmission is required.
- Mobile Surveillance & Security
- Vehicle-mounted video transmission for police, emergency response, or security monitoring.
- NLOS capability enables stable reception in urban or obstructed environments.
- Industrial Monitoring & Research
- Remote video monitoring for pipelines, construction sites, wildlife observation, and environmental studies.
- Emergency and Disaster Relief
- Supports rapid deployment for real-time video transmission in disaster zones or emergency sites.
Optional Features
- Extended RF Output Power: Up to 5W for longer-range transmission.
- Directional or Omni-Directional Antennas: For extended reception or flexible deployment.
- Frequency Down Converters: For operation beyond standard COFDM frequency bands.
- Waterproof and Ruggedized Housing: For extreme outdoor environments.
- Multi-Receiver Support: Stream video to multiple devices simultaneously.
- Custom OEM/ODM Solutions: Tailored for specialized UAVs, cameras, or professional broadcasting setups.
The COFDM Wireless Transmitter is a reliable, high-performance solution for long-distance, high-definition video transmission, offering low latency, strong NLOS capability, and compatibility with a wide range of receivers. Its compact and rugged design ensures seamless integration into UAVs, vehicles, or mobile monitoring setups, making it an ideal choice for professional video applications, surveillance, broadcasting, and industrial monitoring.
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