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COFDM Wireless Video Transmitter and Receiver – AV in / HDMI out FPV System
Reliable Long-Range Video Transmission up to 100KM (2W support 30km)


Product Overview

The COFDM Video Transmitter & Receiver system is designed for users who need secure, long-range, and stable wireless video transmission in complex environments. Using COFDM multi-carrier modulation technology combined with H.264/MPEG-2 video encoding, this system delivers 720P high-quality video with low latency, ensuring real-time video monitoring in both line-of-sight (LOS) and non-line-of-sight (NLOS) conditions.

Whether for UAVs, military reconnaissance, live broadcast, security monitoring, or industrial applications, this COFDM system provides stable, interference-resistant, encrypted wireless video transmission over distances from 10km to 30km (depending on power output and antenna configuration).


Key Selling Points & Advantages

  • Long-Range Transmission:

    • Supports LOS (Line-of-Sight) distances up to 30KM with a 2W Power Amplifier.
    • Supports NLOS (Non-Line-of-Sight) distances up to 1.5KM in urban or obstructed environments.
  • Low Latency Transmission:

    • End-to-end delay of <200~300ms, making it suitable for real-time monitoring and drone FPV.
  • Secure Video Encryption:

    • Built-in AES-128 video encryption ensures transmission privacy and prevents unauthorized interception.
  • Dual Video Outputs:

    • Transmitter: Composite CVBS AV input (720P).
    • Receiver: HDMI + AV output, compatible with most monitors, DVRs, and display devices.
  • Modular & Configurable Design:

    • Optional parameter configuration board for frequency tuning, bitrate adjustment, and real-time monitoring.
    • Easily modify transmission frequency and parameters as per requirements.
  • Powerful PA Output:

    • Available in 1W or 2W RF power output.
    • Higher power enables stronger penetration through walls and obstacles.
  • Integrated Compact Housing:

    • Rugged all-aluminum shockproof and anti-corrosion design for outdoor use.
    • Compact, lightweight transmitter suitable for drones, UGVs, and mobile operations.
  • Full Package Included:

    • Complete set with transmitter, receiver, antennas, and cables. Ready-to-use with no additional equipment needed.

Applications

This COFDM wireless video transmission system is widely used across industries and professional fields:

  • Military & Law Enforcement: Tactical reconnaissance, covert surveillance, and secure communication.
  • Broadcasting & Live Streaming: Sports events, news reporting, outdoor concerts, and aerial cinematography.
  • Drone FPV Systems: Long-range aerial video transmission with optional wave filters for UAV compatibility.
  • Security & Monitoring: CCTV, perimeter surveillance, border patrol, and vehicle-mounted monitoring.
  • Search & Rescue: Emergency communication in mountainous or urban disaster zones.
  • Industrial & Research: Marine video monitoring, oilfield inspection, and mobile robotics.

Technical Features

  • COFDM Modulation: Ensures stable and anti-interference transmission in both LOS and NLOS environments.
  • MPEG-2 / H.264 Compression: Efficient video encoding with reduced bandwidth requirements.
  • Configurable Frequency: Adjustable transmission frequency (170–860 MHz).
  • UART Data Link: Supports one-way video + data transmission (simplex) for telemetry integration.
  • Signal Strength Monitoring: Receiver screen displays signal strength to assist with antenna alignment.
  • Robust Build: Heat-sink aluminum housing, shock-resistant design, suitable for field deployment.

Technical Specifications

Transmitter:

  • Operating Voltage: DC 11V~13V (20W PA requires DC 24V~28V)
  • Current: ≤1.5A @ DC12V (2W mode)
  • Input Video: Composite CVBS (PAL default, NTSC optional)
  • Video Encoding: MPEG-2 / H.264
  • Resolution: 720×576 @ 4M bitrate or higher
  • Transmission Power: 1W or 2W RF output
  • Transmission Frequency: Stock at 300MHz (290–310MHz) or 600MHz (590–610MHz); customizable from 170–860MHz
  • Data Transmission: One-way UART (baud rates up to 230400bps)
  • Modulation: COFDM (QPSK, 16QAM, 64QAM)
  • Bandwidth: 2/3/4/5/6/7/8MHz adjustable
  • Encryption: AES-128 video encryption
  • Dimensions: 90×65×22mm, lightweight (154g transmitter unit, 34g antenna)

Receiver:

  • Frequency Range: 170–860MHz
  • Bandwidth: 2/3/4/5/6/7/8MHz adjustable
  • RF Input: -94dBm to 0dBm (at 8MHz)
  • RF Connector: SMA female, 50Ω
  • Demodulation: COFDM
  • Video Decoding: MPEG-2
  • Video Outputs: HDMI + AV (CVBS)
  • Aspect Ratio: 4:3 / 16:9 selectable
  • Resolution: 720×576 @ 6MHz
  • Operating Voltage: DC 12V <0.3A
  • Operating Temp: -20°C ~ +50°C

Real-World Performance

  • LOS Test (Air-to-Ground, 2W PA): Up to 30KM transmission.
  • NLOS Test (Urban Environment): 1.5KM with buildings and obstacles.
  • Drone FPV Use: Stable transmission in both low-altitude and high-altitude flights.
  • Mobile Vehicle Test: Smooth video with transmitter mounted on a moving car.

Package Includes

  • 1 × COFDM Wireless Video Transmitter
  • 1 × COFDM Wireless Video Receiver
  • 2 × High-Gain Antennas (Tx & Rx)
  • 1 × Configuration Parameter Board (optional)
  • 1 × Accessory Cable Set
  • 1 × User Manual

FAQs

Q1: Can I customize the frequency?
Yes, the frequency can be customized within 170–860 MHz. Standard stock models are available at 300MHz and 600MHz.

Q2: Does it support video + telemetry data?
Yes, it supports UART data transmission along with video (one-way).

Q3: What’s the maximum range?
Up to 30KM LOS with 2W PA. Higher power models (5W, 10W, 20W) are available for extended distances.

Q4: Can it work at 260 MHz or 450–1300 MHz?
Yes, custom frequency tuning is available upon request.

Q5: What latency should I expect?
Latency is typically 200–300ms, depending on bitrate and environment.

Q6: Can I connect an HDMI camera directly?
The transmitter supports CVBS AV input only. For HDMI cameras, use an HDMI-to-AV converter.

Q7: Is it suitable for drones?
Yes, it’s recommended for UAV FPV, but extra wave filters are suggested for stable performance (optional accessory).

Q8: Is encryption included?
Yes, AES-128 video encryption is standard.


Warnings & Best Practices

  • Always connect the transmitter antenna before powering on to avoid damaging the PA module.
  • Keep antennas vertical and elevated for optimal performance.
  • Ensure a height difference between Tx and Rx antennas for better signal reception.
  • Avoid blocking antennas with metal or obstacles.

Why Choose This COFDM Wireless Video System?

  • Proven 10–30KM long-range transmission.
  • Secure encrypted video for sensitive applications.
  • Affordable pricing compared to traditional microwave or 4G/5G video systems.
  • Versatile use cases from drones to broadcasting to military.
  • Ready-to-use complete set with accessories.

Get the Cheapest & Longest COFDM Wireless Video Transmitter and Receiver Today!
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