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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