COFDM-901T cofdm transmitter wireless video modulator uav transmission hdmi nols module receiver

cofdm transmitter wireless video

COFDM-901T cofdm transmitter wireless video modulator uav transmission hdmi nols module receiver

Selling Points

• HDMI DV input (Support GoPro camera)
• Receiver 1: USB to Mobile Phone, MID (Android)
• Receiver 2: WIFI Receiver to Mobile Phone, MID. (Android, Apple IOS)
• Receiver 3: 7-inch Portable HDMI Screen with DVB-T receiver

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 a video to demonstrate it if you send an inquiry)

Product Features

• 1. RF Transmission Power 200mW
• (If you need 1W or 5W, please check CODM-902T.)
• 2. Extremely 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

Superior system performance

• * COFDM modulation and demodulation;
• * Best Doppler performance: moving speed > 150km/H;
• * Best Multipath fading, ACS for interference Rejection;
• * High sensitivity: -93dBm for FHD; -100dBm for HD;
• * Flexible TX power up to 30dBm. Typ. 25dBm;
• * ISM900MHz (902MHz~928MHz) frequency band (default);
• * Wide frequency scalability (70MHz~1450MHz);
• * 6MHz channel BW (default); Configurable to 2~8MHz;
• * Wide application and convenient and flexible;
• * Unlimited amount of receiver at the same time;
• * Super long distance wireless transmission: >2km 
• * Lower video transmission delay: <300ms
• * Video format: H.264 up to 720p@30fps and 1080p @30fps;
• * Encryption solution for private and authorized to access;
• * RX system can support Android and iOS;
• * Power supply: 5V for TX and RX system;
• * Low power consumption:
• TX: 5W for 25dBm output; 7.5W for 30dBm output;
• RX: 1.8W;
• * Simply user interface; Compatible to different DV input;
• * Ultra small board size:
• TX: 54 mm (L) x 41 mm (W) x 12 mm (H);
• RX: 97 mm (L) x 67mm (W) x5 mm (H);

Overview

The COFDM-901T is a cutting-edge wireless video transmitter and modulator designed for high-performance real-time HD video transmission in UAVs, mobile applications, and professional broadcasting setups. By integrating COFDM (Coded Orthogonal Frequency Division Multiplexing) technology with MPEG-2/H.264 compression, this system ensures highly stable video and audio transmission over long distances, even in non-line-of-sight (NLOS) scenarios or environments with strong multipath interference.

Compact, lightweight, and robust, the COFDM-901T is ideal for applications where space, weight, and durability are critical, such as UAV payloads, mobile news vehicles, or tactical field operations. The transmitter module supports HDMI digital input, compatible with devices like GoPro cameras, and offers multiple receiver options, including USB receivers for Android devices, Wi-Fi receivers compatible with Android and iOS, and 7-inch portable HDMI screens with DVB-T decoding for standalone monitoring.

The COFDM-901T is engineered to deliver high-resolution video (up to 1080p @ 30fps) with ultra-low latency (<300ms), bright and smooth image quality, and long-range wireless coverage (>2km). Its modular design allows for seamless integration into various platforms while supporting unlimited simultaneous receivers, making it ideal for live broadcasts, aerial reconnaissance, security, and emergency communication applications.

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Advantages

1. Long-Range Transmission
   • Delivers stable HD video over 2km or more under standard line-of-sight conditions.
   • Optional high-power configurations available for extended coverage.
2. Real-Time Transmission
   • End-to-end latency of less than 300ms, ensuring smooth and responsive video for critical operations.
3. Exceptional Image Quality
   • Supports 1080p and 720p HD video with high clarity, vibrant colors, and smooth playback.
   • No mosaic artifacts or dragging phenomena, even during high-speed motion.
4. High Reliability in Complex Environments
   • COFDM modulation ensures strong resistance to multipath fading, interference, and obstacles.
   • NLOS transmission capability allows operation behind buildings, trees, or terrain obstructions.
5. Flexible Integration
   • Compatible with HDMI cameras, GoPro, and other DV input devices.
   • Supports Android and iOS receivers, portable monitors, or USB-based viewing.
6. Lightweight and Compact
   • Ultra-small PCB board design: TX: 54 × 41 × 12 mm; RX: 97 × 67 × 5 mm.
   • Lightweight construction reduces payload weight for UAVs or portable setups.
7. Robust and Mobile-Friendly
   • Rugged housing resistant to vibration and shock.
   • Ideal for UAVs, mobile applications, or field broadcasting operations.

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Product Features

1. RF Transmission Power
   • Standard 200 mW output, adjustable TX power up to 30 dBm.
   • Optional higher-power models available (COFDM-902T) for 1W or 5W output.
2. Advanced COFDM Modulation
   • Provides reliable communication even in multipath environments.
   • Best-in-class Doppler performance, supporting speeds >150 km/h.
3. Video Encoding
   • MPEG-2 / H.264 compression for high-quality, low-latency transmission.
   • Video formats supported: 720p @ 30fps and 1080p @ 30fps.
4. Receiver Options
   • USB Receiver: Connects directly to mobile phones or tablets (Android).
   • Wi-Fi Receiver: Compatible with Android and iOS devices for wireless streaming.
   • 7-inch Portable HDMI Receiver: Handheld monitor with DVB-T decoding for standalone HD viewing.
5. Transmission Frequency and Bandwidth
   • Default: ISM 900 MHz band (902–928 MHz).
   • Frequency scalability: 70 MHz–1450 MHz for specialized applications.
   • Channel bandwidth: Default 6 MHz, configurable 2–8 MHz.
6. High Sensitivity and Low Power Consumption
   • Receiver sensitivity: -93 dBm for FHD, -100 dBm for HD.
   • TX typical power consumption: 5W for 25 dBm, 7.5W for 30 dBm output.
   • RX power consumption: 1.8W.
7. Encryption and Security
   • Supports private, encrypted transmissions to prevent unauthorized access.
8. User-Friendly Operation
   • Simple interface compatible with various DV inputs.
   • Stable, adjustable dynamic power output.
9. Ultra-Compact Design
   • Extremely small board size for flexible integration into UAVs, cameras, or embedded systems.
   • Lightweight for portable and mobile applications.
10. Simultaneous Multi-Receiver Support
    • Unlimited number of receivers can connect to a single transmitter.
    • Ideal for broadcast applications where multiple monitoring stations are required.

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Technical Specifications

Parameter	COFDM-901T TX	COFDM RX
Video Input	HDMI (supports GoPro & other DV cameras)	USB, Wi-Fi, HDMI 7-inch monitor
Video Format	H.264 / MPEG-2	H.264 / MPEG-2
Resolution	720p @30fps, 1080p @30fps	720p @30fps, 1080p @30fps
RF Frequency	902–928 MHz (ISM band)	902–928 MHz
Frequency Range (Customizable)	70 MHz–1450 MHz	70 MHz–1450 MHz
Channel Bandwidth	6 MHz (2–8 MHz configurable)	6 MHz (2–8 MHz configurable)
TX Power	200 mW (adjustable up to 30 dBm)	N/A
Receiver Sensitivity	N/A	-93 dBm (FHD), -100 dBm (HD)
Latency	<300 ms	<300 ms
Mobility Speed	>150 km/h	>150 km/h
Dimensions (PCB)	54 × 41 × 12 mm	97 × 67 × 5 mm
Power Supply	5V DC	5V DC
Power Consumption	5–7.5W	1.8W
Receiver Compatibility	Android, iOS, HDMI, USB	Android, iOS, HDMI, USB
Environment	Mobile, UAV, NLOS	Mobile, UAV, NLOS

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Applications

The COFDM-901T Wireless Video Transmitter is engineered for a wide variety of professional applications requiring reliable HD video transmission:

1. UAV and Drone Transmission
   • High-definition video downlink from UAVs for reconnaissance, surveying, inspection, and aerial photography.
   • Lightweight modules minimize drone payload weight.
2. Mobile Broadcast and News Gathering
   • Real-time wireless video for field crews, mobile broadcasting vehicles, and live events.
   • Supports multiple receivers for simultaneous monitoring across production teams.
3. Security and Law Enforcement
   • Portable solution for monitoring mobile operations, border surveillance, or tactical deployments.
   • Encryption ensures secure video feeds for authorized personnel.
4. Industrial Inspection
   • Remote monitoring of pipelines, construction sites, power lines, and infrastructure projects.
   • NLOS capability allows inspection in obstructed areas.
5. Emergency Communication
   • Live video transmission for disaster relief, firefighting, and emergency response coordination.

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Optional Configurations

• Higher Power Models: COFDM-902T supports 1W or 5W transmission for longer distance coverage.
• Frequency Customization: Flexible frequency range (70 MHz–1450 MHz) to meet regional spectrum requirements.
• Receiver Options: USB, Wi-Fi, or 7-inch HDMI portable monitor receivers.
• Encryption Modules: Optional secure encryption for confidential applications.
• Custom PCB/Housing Integration: OEM versions available for UAVs, embedded systems, and mobile applications.

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Conclusion

The COFDM-901T Wireless Video Transmitter is a professional, high-performance solution for real-time HD video transmission in UAVs, mobile broadcasting, security, and industrial monitoring. Its combination of COFDM modulation, H.264 compression, ultra-low latency, and NLOS capability ensures reliable performance in complex and dynamic environments. With flexible receiver support, compact design, and robust construction, the COFDM-901T is ideal for professionals requiring high-quality video transmission, mobility, and flexibility in a single integrated system.

Whether for UAV aerial downlink, live event broadcasting, field surveillance, or industrial inspection, the COFDM-901T provides the ultimate balance of performance, reliability, and portability.