Wireless Video Receiver
COFDM-221R HD Wireless Video Receiver COFDM AV 1080P Transmission image Transceiver CVBS 170~900Mhz
Table of Contents
Features
- 1. Now Support DVB-T / DVB-T2 + High Speed;
- 2. Support H.264/AVC, MPEG2~MPEG4 HD Video Decode;
- 3. Available to upgrade the firmware via USB slot;
- 4. USB Recorder, PVR, multimedia play, support HDD;
- 5. Auto searching and updating bit rate information;
- 6. Small size design lightweight. Professional diversity receiver;
- 7. Memory function after power off;
- 8. Multi-Language Support: English, Russian, Thai, Spanish, etc;
- 9. Particularly suitable for use in complex environments;
- 10. 6MHz, 7MHz, 8MHz Band-wide;
- 11. HD output (One route);
- 12. 2x Video output, Stereo Audio-R, Audio-L output;
- 13. Support IR output and extended remote sensor receiver;
- 14. DC Power jack, one cigarette lighter to connect easily
- 15. 10~32V wide power supply, specially designed for cars or buses.
Specification
- Input frequency: VHF 170-900MHz
- Modulate: QPSK/16 – QAM/256-QAM
- Decode standard: MPEG4,MP@ML,MP@HL,H.264/AVC
- Two ways CVBS RCA + One HD output
- Power Supply: DC 12V~26V 5W
Product information
| Brand Name: | OEM |
| Model Number: | COFDM-221R |
| Certification: | CE Applicable |
| Place of Origin: | China |
| MOQ: | 1pcs |
| Price: | USD |
| Payment Terms: | L/C, T/T, Western Union, MoneyGram Paypal |
| Supply Ability: | 1000pcs per month |
| Delivery Time: | 20 working days |
| Packaging Details: | Carton Box |
| Output frequency: | 46-860MHz; per 0.5MHz adjustable |
| Modulation type: | COFDM |
| Audio output: | Stereo |
| Video Compression: | H.264 MPEG2-MPEG4 |
| Video Output: | CVBS, HDMI |
| Receive sensitivity: | -80dBm |
| Encryption | AES-128 bit |
Overview
The COFDM-221R is a professional-grade HD wireless video receiver designed to provide reliable, high-quality video reception from COFDM wireless video transmitters. Utilizing COFDM (Coded Orthogonal Frequency Division Multiplexing) technology, this receiver ensures stable, interference-resistant reception, even in complex and high-multipath environments. It supports a broad range of video formats, including H.264/AVC, MPEG2, and MPEG4, providing full compatibility with modern HD and legacy video sources.
The COFDM-221R is capable of receiving 1080P Full HD video, as well as 720P HD and standard-definition video, ensuring versatility for professional applications. The receiver is compatible with various input sources, including HD wireless transmitters, composite CVBS signals, and DVB-T/DVB-T2 digital signals, making it ideal for UAV video downlinks, mobile broadcasting, field surveillance, emergency communications, and industrial monitoring.
Compact, lightweight, and portable, the COFDM-221R is designed for on-the-go applications, with wide DC power supply support (10–32V), making it perfect for in-vehicle use, mobile command centers, and remote monitoring stations. Its user-friendly interface, USB firmware upgrade capability, PVR recording, and multimedia playback make it a complete solution for professional video reception and management.
Key Advantages
- High-Definition Video Reception
- Supports 1080P Full HD video, HD 720P, and SD 480P, providing high-quality images with sharp detail and vibrant colors.
- Compatible with multiple video compression standards, including H.264/AVC, MPEG2, and MPEG4, ensuring versatility for diverse broadcast and surveillance systems.
- Reliable COFDM Reception
- COFDM technology provides strong resistance to multipath interference, fading, and signal loss, making it ideal for mobile and complex environments.
- Wide frequency coverage (170–900 MHz) allows operation with a variety of transmitters and customized deployments.
- Portable and Lightweight Design
- Compact size and low weight make the COFDM-221R easy to deploy on vehicles, drones, mobile command centers, or handheld setups.
- Professional-grade diversity reception ensures consistent signal strength even in challenging environments.
- Low-Latency and Real-Time Performance
- Optimized for high-speed transmission systems, ensuring video latency is minimal and suitable for real-time monitoring and control.
- Flexible Power and Integration
- Supports DC 10–32V input, making it compatible with vehicles, buses, or other mobile platforms.
- DC power jack and cigarette-lighter adapter simplify mobile power connections.
- Secure Transmission
- Supports AES-128 encryption, ensuring secure video reception for sensitive or private operations.
- Multifunctional Capabilities
- Built-in USB PVR recording, media playback, and firmware upgrade functionality via USB.
- Auto-searching and updating of bitrate information allows quick deployment without manual configuration.
- User-Friendly Operation
- Multi-language support includes English, Russian, Thai, Spanish, and more.
- Memory function preserves settings after power off.
- IR remote control and extended remote sensor support for easy operation.
Product Features
- Wide Video Format Support
- Supports HD H.264/AVC, MPEG2, and MPEG4 decoding for maximum compatibility.
- Handles Full HD 1080P, 720P HD, and SD resolutions, ensuring smooth video across multiple platforms.
- Professional Diversity Reception
- Dual antenna input for improved signal stability and resistance to multipath fading.
- Particularly suitable for high-speed mobile platforms or complex NLOS environments.
- High Sensitivity and Signal Quality
- Receiver sensitivity: -80 dBm, ensuring reliable reception over extended distances and through environmental interference.
- Supports 6/7/8 MHz bandwidths to match transmitter configurations.
- Multiple Output Interfaces
- Video outputs include HDMI for HD displays and CVBS composite for legacy systems.
- Audio outputs provide stereo left and right channels for professional audio monitoring.
- USB Functionality
- USB PVR recording allows for storing video on connected hard drives.
- Firmware upgrades via USB ensure the receiver remains compatible with new standards and features.
- USB media playback supports common formats such as AVI, MP4, MP3, JPG, and BMP.
- Flexible Frequency Control
- Input frequency range: VHF 170–900 MHz, adjustable in 0.5 MHz steps.
- Supports DVB-T/DVB-T2 reception for professional broadcasting and field deployments.
- Compact and Durable Design
- Lightweight and small form factor for portability.
- Designed for professional field use, including vehicles, buses, drones, or handheld operations.
- Enhanced User Experience
- Auto-searching for channels and automatic bitrate updates reduce setup time.
- Multi-language OSD and menu options allow quick operation by international users.
- Memory retention preserves user settings even after power loss.
- Versatile Installation Options
- DC power input 10–32V supports installation in cars, buses, mobile command units, or standalone setups.
- IR remote control support for convenient operation in vehicle or field conditions.
- Secure and Reliable Operation
- AES-128 encryption ensures video streams are secure and accessible only to authorized receivers.
- COFDM modulation guarantees interference-resistant and stable video transmission, even in urban or high-density RF environments.
Technical Specifications
| Parameter | Specification |
|---|---|
| Input Frequency | VHF 170–900 MHz |
| Modulation Type | COFDM |
| Video Decoding Standard | H.264/AVC, MPEG2, MPEG4 |
| Video Resolution | 1080P, 720P, SD |
| Video Output | HDMI, CVBS (composite) |
| Audio Output | Stereo L + R |
| Receive Sensitivity | -80 dBm |
| Encryption | AES-128 bit |
| Bandwidth | 6/7/8 MHz adjustable |
| PVR/USB Recording | Yes |
| Firmware Upgrade via USB | Yes |
| Multi-Language Support | English, Russian, Thai, Spanish, others |
| Power Supply | DC 10–32V |
| Power Consumption | 5W |
| Dimensions | Compact, lightweight |
| Diversity Reception | Yes, dual antenna |
| IR Remote Support | Yes |
| Multi-Function Output | HDMI, CVBS, audio, USB |
Applications
The COFDM-221R HD Wireless Video Receiver is suitable for a wide range of professional applications:
- UAV and Drone Video Downlink
- Provides real-time Full HD video reception from UAV-mounted transmitters.
- Supports mobile operators with NLOS capability for urban or forested environments.
- Mobile and Vehicle-Based Broadcasting
- Ideal for live news reporting, mobile production units, and field coverage.
- Wide DC power range allows seamless integration in cars, buses, and mobile command vehicles.
- Public Safety and Law Enforcement
- Suitable for police, border patrol, emergency response, and firefighting units.
- Supports secure video transmission with AES-128 encryption.
- Industrial Monitoring and Surveillance
- Monitors remote industrial sites, pipelines, or infrastructure in HD quality.
- Handles multipath environments common in urban and industrial areas.
- Event Broadcasting
- Captures and relays live events, sports, and concerts with high-definition video.
- Supports multiple output options for monitoring stations or production setups.
- Emergency Communication
- Provides reliable video reception for disaster relief, search and rescue, and on-site coordination.
Optional Features and Customization
- Extended Frequency Support: Can be customized for other frequency bands beyond 170–900 MHz.
- Firmware Upgrades: USB upgradeable to support future video standards or additional functionalities.
- Custom Output Interfaces: Additional HDMI or CVBS outputs upon request.
- Extended Diversity Options: Dual or multi-antenna options for improved signal reliability.
- Vehicle-Specific Adaptations: Custom DC input connectors or mountings for cars, buses, and UAV platforms.
- Secure Communication: Optional advanced AES or proprietary encryption modules.
Conclusion
The COFDM-221R HD Wireless Video Receiver is a professional, versatile, and highly reliable solution for receiving HD wireless video in real-time. Its combination of COFDM technology, H.264/MPEG2/MPEG4 decoding, wide frequency coverage, and ultra-stable NLOS reception makes it suitable for UAVs, mobile broadcasting, public safety, industrial monitoring, and emergency communications.
With multi-functional USB support, PVR recording, dual video and audio outputs, and secure AES encryption, the COFDM-221R provides an all-in-one solution for professional video reception needs. Its compact, lightweight design, broad power compatibility, and user-friendly interface allow seamless integration into mobile and field applications, ensuring reliable HD video reception even in complex environments.
Whether for real-time UAV monitoring, mobile broadcasting, emergency response, or industrial inspection, the COFDM-221R delivers high-definition video with robust stability, security, and professional performance.
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