How to buy video transmitter of COFDM?

How to buy video transmitter of COFDM long-range?

Overview

The COFDM Wireless Video Transmitter and Receiver System is a high-performance, long-range video transmission solution specifically designed for UAVs, drones, mobile vehicles, broadcasting, and professional field applications. Using Coded Orthogonal Frequency Division Multiplexing (COFDM) technology, this system provides stable, real-time high-definition (HD) video and audio transmission over long distances, even in challenging non-line-of-sight (NLOS) environments.

With support for multiple video input formats including HDMI, SDI, and CVBS composite video, the system is versatile and compatible with a wide range of cameras, camcorders, and drones. Coupled with high-quality H.264/MPEG-2 compression, the COFDM system ensures clear, smooth images with accurate color reproduction, minimal artifacts, and ultra-low latency suitable for live monitoring, UAV reconnaissance, industrial inspections, and broadcasting.

This system is ideal for professional users seeking secure, reliable, and configurable wireless video links. The transmitter and receiver can be customized to specific frequency ranges, transmission distances, and power requirements, ensuring regulatory compliance and optimized performance for each project.

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Key Features

1. High-Definition Real-Time Video Transmission
   • HDMI input supports cameras like GoPro, DSLR, and professional camcorders.
   • Full HD 1080P and 720P composite CVBS video input supported.
   • H.264/MPEG-2 encoding ensures minimal bandwidth usage without sacrificing image quality.
2. Advanced COFDM Modulation
   • COFDM ensures robust performance in multipath, high-speed, and interference-prone environments.
   • Modulation types: QPSK, 16QAM, 64QAM.
   • Provides stable NLOS transmission with strong diffraction and low interference.
3. Long-Range Transmission
   • Line-of-sight (LOS) distances exceed 15 km, while ground and NLOS distances typically range from 600 meters to 10 km, depending on antenna configuration and environment.
   • Optional high-gain antennas extend the range further for professional deployments.
4. Ultra-Low Latency
   • Transmission delay typically under 300–500ms, ensuring real-time feedback for drone operations, live events, or critical monitoring tasks.
5. Flexible Frequency and Power Options
   • Default frequencies for COFDM-904T: 503 MHz, 509 MHz, 515 MHz, 521 MHz. Custom frequencies from 170 MHz to 900 MHz or up to 1 GHz are available.
   • Adjustable RF output power from 1W to 5W depending on required transmission distance.
   • Wide bandwidth options: 2 MHz, 4 MHz, 6 MHz, 7 MHz, 8 MHz.
6. Compact and Rugged Design
   • Transmitter size: 20 × 10 × 5 mm (customizable for different models).
   • Lightweight and portable, ideal for UAVs, drones, and mobile setups.
   • Shock-resistant and vibration-proof for harsh operational environments.
7. Multi-Receiver Support
   • A single transmitter can stream to multiple receivers operating at different frequencies.
   • Receivers compatible include COFDM-221R, COFDM-902T, COFDM-904T, supporting Android, iOS, or portable monitors.
8. Security and Encryption
   • AES 128-bit encryption ensures secure, private transmission.
   • Optional user password protection for authorized access only.
9. Battery and Power Options
   • Transmitters can be powered via internal batteries (where applicable) or external DC input.
   • Receivers support DC 5V–36V input for vehicle-mounted or portable operation.
10. User-Friendly Interface
    • Easy-to-use frequency selection via remote control.
    • Multiple output options on receivers, including HDMI, USB, and Wi-Fi for mobile device connectivity.

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Technical Specifications

Parameter	Specification
Modulation Type	COFDM (QPSK, 16QAM, 64QAM)
Video Compression	H.264 / MPEG-2
Video Input	HDMI, HD-SDI, CVBS composite
RF Output Power	1W (default), up to 5W optional
Operating Frequency	170 MHz – 900 MHz (customizable), default 503 MHz
Bandwidth	2 / 4 / 6 / 7 / 8 MHz
Transmission Distance	LOS > 15 km, Ground > 1 km, NLOS > 600 m
System Delay	≤300–500 ms
Bit Error Rate	≤10^-6
Video Resolution	1080P / 60 fps; backward compatible 720P/480P
Encryption	AES128 (optional)
Dimensions (TX)	20 × 10 × 5 mm
Weight (TX)	0.2 kg (depending on model)
Power Supply	DC 5V–36V

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Applications

1. Drone and UAV Video Transmission
   • Real-time HD video for aerial filming, surveying, mapping, or search-and-rescue.
   • NLOS capability ensures stable transmission in urban or forested environments.
2. Broadcasting and Media Production
   • Portable or vehicle-mounted live transmission for news reporting, sports, and events.
3. Industrial Monitoring
   • Remote monitoring of pipelines, construction sites, and critical infrastructure.
4. Security and Emergency Response
   • Provides live video feeds for police, firefighting, or disaster relief operations.
5. Mobile Applications
   • Vehicle-mounted or handheld units for temporary setups and field monitoring.

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Optional Configurations

• High-Gain Antennas: Extend range up to 20 km or more depending on terrain.
• Frequency Customization: Compliance with local regulations and optimal interference-free operation.
• Battery Upgrades: Extended battery life for mobile or UAV use.
• Multiple Receiver Support: Allows several receivers to operate simultaneously on different frequencies.
• OEM/ODM Solutions: Custom transmitter housing, frequency, or interface tailored to project needs.

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This COFDM Wireless Transmitter and Receiver system offers a versatile, high-performance solution for professionals who require long-range, real-time HD video transmission with secure and reliable operation. Whether used in UAV applications, mobile surveillance, or broadcasting, this system provides low latency, high-quality imaging, and flexible deployment options to meet the most demanding requirements.