COFDM wireless receiver Long distance transmission distance and Real – time transmission system

COFDM wireless receiver

COFDM wireless receiver with Long distance transmission distance

System advantages

  • 1. Long distance transmission distance
  • 2. Real-time transmission system
  • 3. Delay time is very short less than 500ms
  • 4. Perfect image quality, bright colors and image smoothing

Features

  • 1. Transmission power 1W
  • 2. Extremely lightweight and rugged housing
  • 3. vibration, impact resistance
  • 4. Application of COFDM modulation, MPEG-2 / H.264 compression
  • 5. Small size, 102 only × 60 × 21.5 mm
  • 6. Perfect mobile application
  • 7. Video transmission of high quality, no mosaic, no drag phenomenon
  • 8. Support non-line-of-sight transmission, strong diffraction capability;

Technical Parameters

  •  Modulation type ： COFDM QPSK (4QAM), 16QAM, 64QAM
  • Operating frequency : 300-900 MHz; (adjustable per 1M)
  • The antenna gain ： 2.15dBi
  • Send power ： 30dBm (adjustable)
  • RF bandwidth： 1.25 / 2.5 / 6/7/8 MHz (optional)
  • FEC (forward error correction) ：1/2 2/3 3/4 7/8
  • Protection interval ： 1/4, 1/8, 1/16, 1/32
  • Video Compression MPEG-2, H.264 : (  video input of friends, NTSC)
  • Encryption Method ：128 – Bit AES (Can Set User Password)
  • Operating voltage ：DC12V
  • Operating temperature ：  -10 ~ 70 ℃
  • Dimensions ： 102 * 60 * 21.5 (mm) (antenna not included)
  • Weight ：170G (antenna not included)

  • Transmission distance ： 100 meters high, 5-7 m distance
COFDM wireless receiver
COFDM wireless receiver
IOS cofdmi WiFi receive
COFDM wireless
IOS cofdmi WiFi receive
IOS cofdmi WiFi receive
IOS cofdmi WiFi receive
COFDM receiver

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COFDM wireless receiver Long distance transmission distance and Real - time transmission system 1
COFDM wireless receiver Long distance transmission distance and Real - time transmission system 2
COFDM wireless receiver Long distance transmission distance and Real - time transmission system 3
COFDM wireless receiver Long distance transmission distance and Real - time transmission system 4

Overview

The COFDM Wireless Receiver is a high-performance, professional-grade solution designed for real-time wireless video and audio reception over long distances. Utilizing COFDM (Coded Orthogonal Frequency Division Multiplexing) technology, this receiver delivers exceptional stability, robustness, and resistance to multipath interference, making it ideal for challenging environments where traditional analog or digital transmission methods may fail.

Engineered for mobile, UAV, drone, and field deployment, the receiver combines compact size, lightweight construction, and advanced digital signal processing. Measuring just 102 × 60 × 21.5 mm and weighing 170 g (excluding antenna), it is extremely portable, making it suitable for on-the-go operations, handheld use, vehicle installations, or integration into mobile command centers.

This receiver supports high-quality video with bright colors, smooth motion, and minimal latency, maintaining frame-to-frame clarity even under non-line-of-sight (NLOS) conditions. With a transmission delay of less than 500 milliseconds, it ensures near real-time monitoring for security, industrial inspection, broadcasting, and UAV applications.

The COFDM wireless receiver is compatible with H.264 and MPEG-2 video compression standards, providing efficient video decoding without compromising resolution or smoothness. Its adjustable frequency range (300–900 MHz) allows for deployment in various regions and frequency bands, while AES-128 encryption ensures secure transmission for sensitive operations.

System Advantages

  1. Long-Distance Transmission
    • Achieves reliable reception over extended distances for both line-of-sight (LOS) and non-line-of-sight (NLOS) scenarios.
    • High-gain antennas and adjustable RF output power contribute to stable reception even in complex terrain or urban environments.
  2. Real-Time Video Reception
    • Extremely low latency (<500 ms) ensures real-time video monitoring, critical for UAV operation, remote surveillance, and emergency response.
  3. Superior Image Quality
    • Supports high-definition video reception with bright, vibrant colors and smooth motion playback.
    • Eliminates common artifacts such as mosaic, dragging, or tearing.
  4. Robust Design for Field Use
    • Lightweight, rugged, and impact-resistant housing suitable for mobile and aerial applications.
    • Operates reliably in harsh environments, from hot summer conditions to sub-zero temperatures.
  5. Flexible Non-Line-of-Sight (NLOS) Performance
    • Strong diffraction and multipath interference handling capability ensures video reception even when direct line-of-sight is obstructed by buildings, trees, or terrain.

Key Features

  • RF Transmission Power: Adjustable up to 30 dBm, providing flexibility for long-range or short-range reception needs.
  • Modulation Support: COFDM with QPSK (4QAM), 16QAM, and 64QAM for optimized video reception and interference resilience.
  • Bandwidth Options: Selectable RF bandwidths of 1.25 MHz, 2.5 MHz, 6 MHz, 7 MHz, and 8 MHz to accommodate different channel requirements.
  • Forward Error Correction (FEC): Configurable ratios of 1/2, 2/3, 3/4, and 7/8 to enhance data integrity during high-speed transmissions.
  • Protection Intervals: Configurable guard intervals of 1/4, 1/8, 1/16, and 1/32 to minimize inter-symbol interference in high-multipath environments.
  • Video Decoding: Supports MPEG-2 and H.264, ensuring compatibility with a wide range of COFDM transmitters.
  • Encryption: AES-128 bit encryption with a user-defined password for secure transmission of sensitive video feeds.
  • Operating Voltage: DC 12V for field and vehicle deployment.
  • Operating Temperature Range: -10 °C to +70 °C for reliable operation in extreme environmental conditions.
  • Compact Dimensions: 102 × 60 × 21.5 mm (excluding antenna) for portability.
  • Weight: Lightweight at 170 g for easy handling and UAV integration.
  • Antenna Gain: 2.15 dBi, suitable for mobile and UAV-based reception setups.

Technical Specifications

ParameterSpecification
Modulation TypeCOFDM (QPSK / 16QAM / 64QAM)
Operating Frequency300–900 MHz (adjustable per 1 MHz)
Antenna Gain2.15 dBi
RF Output Power30 dBm (adjustable)
RF Bandwidth1.25 / 2.5 / 6 / 7 / 8 MHz (optional)
Forward Error Correction (FEC)1/2, 2/3, 3/4, 7/8
Protection Interval1/4, 1/8, 1/16, 1/32
Video CompressionMPEG-2, H.264
EncryptionAES-128 (user-configurable password)
Operating VoltageDC 12V
Operating Temperature-10 °C to +70 °C
Dimensions102 × 60 × 21.5 mm (antenna not included)
Weight170 g (antenna not included)
Transmission DistanceLOS: >1 km; NLOS: >600 m (dependent on environment)

Applications

The COFDM Wireless Receiver is highly versatile and applicable in a wide range of professional scenarios:

  1. UAV / Drone Operations
    • Receives HD video from airborne transmitters for surveillance, reconnaissance, mapping, inspection, and live aerial broadcasting.
    • NLOS reception capability ensures uninterrupted monitoring even when obstacles are present.
  2. Mobile and Vehicle-Based Monitoring
    • Ideal for integration into news vans, police cars, or mobile command vehicles.
    • Supports DC 12V supply and compact installation for on-the-move operations.
  3. Public Safety and Security
    • Suitable for law enforcement, firefighting, border patrol, and emergency response teams.
    • Provides secure and real-time video feeds during critical operations.
  4. Industrial Inspection and Monitoring
    • Monitors industrial sites, pipelines, power stations, and remote facilities.
    • High-quality video reception aids in fault detection, safety monitoring, and operational management.
  5. Broadcasting and Live Event Coverage
    • Receives live feeds for events, sports, concerts, and outdoor broadcasting.
    • Provides real-time, HD-quality video for seamless integration into production systems.
  6. Research and Education
    • Ideal for scientific experiments, field research, and educational applications requiring real-time video data transmission.

Optional Features and Customizations

  • Frequency Band Expansion: Extend the operating frequency beyond 900 MHz for specialized industrial or government applications.
  • Enhanced RF Power: Increase RF output above 30 dBm for longer reception distances.
  • Antenna Options: External high-gain antennas for improved reception in challenging terrains.
  • Encryption Upgrades: AES-256 or advanced custom encryption for higher security requirements.
  • Firmware Upgrades: USB-based firmware updates for new features and protocol compatibility.
  • Custom Enclosure: Ruggedized housing or waterproof options for harsh environments.
  • Receiver Pairing: Compatible with multiple COFDM transmitters simultaneously for multi-camera setups.

Conclusion

The COFDM Wireless Receiver is a professional-grade, versatile, and reliable solution for HD video reception in UAV, mobile, industrial, security, and broadcasting applications. Its combination of COFDM technology, low latency, NLOS capability, and encryption ensures secure, real-time, high-quality video reception in complex and challenging environments.

Compact, lightweight, and rugged, this receiver is designed for both portability and durability, making it suitable for field, airborne, and vehicle-based deployments. With flexible frequency, bandwidth, and encryption options, it can be tailored to meet specific operational needs and regulatory requirements.

Whether used in aerial surveillance, emergency response, industrial monitoring, or live broadcasting, the COFDM Wireless Receiver delivers smooth, reliable, and high-definition video transmission, providing operators with the confidence and clarity needed for critical decision-making and professional-grade visual monitoring.

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