TDD-COFDM OEM Wireless Video Board

Overview

The TDD-COFDM OEM Wireless Video Board is a compact, embeddable bidirectional transmission module designed for system integrators, robotics manufacturers, and drone developers who need to add wireless video and data links to their products. Measuring just 90 x 55 x 19 mm with a built-in LCD panel, this pure-hardware board requires no software drivers or operating system integration — it is plug-and-play over standard Ethernet and serial interfaces.

The board uses TDD-COFDM modulation with OFDMA and MIMO multiplexing, achieving a full-duplex IP-based transparent channel with up to 30 Mbps throughput. End-to-end latency is an extremely low 30 ms or less, making it suitable for real-time control applications. It operates at 1.4 GHz (customizable) with 300 mW output power and supports 3/5/10/20 MHz channel bandwidths. Despite its small size, the board delivers NLOS range of 300-900 m and air-to-ground LOS range of 10-20 km.

Key Features

• Ultra-compact board-level design at 90 x 55 x 19 mm with integrated LCD for on-device parameter adjustment — no computer required
• Sub-30 ms end-to-end latency enables real-time FPV drone piloting, teleoperated robotics, and live video feedback for latency-sensitive applications
• Three 100M Ethernet ports plus independent CAN bus (up to 1 Mbps), RS-232, and TTL-level serial interfaces for sensor fusion and actuator control
• MIMO multiplexing with OFDMA modulation provides robust NLOS performance and high throughput in multipath-rich industrial environments
• Wide 9-36V DC input range with under 3 W typical power consumption, compatible with battery-powered mobile platforms

Technical Highlights

The TDD-COFDM board combines TDD time-division duplex with COFDM modulation, ensuring that uplink and downlink data are cleanly separated in time on the same frequency channel. The MIMO architecture uses multiple antennas to exploit spatial diversity, improving link reliability in environments with significant multipath interference. The CAN bus interface features strong error correction capability with minimal packet loss, making it well suited for mission-critical industrial control loops. The device supports point-to-point, point-to-multipoint, and relay networking topologies with up to 15 nodes.

Applications

This OEM board is purpose-built for integration into drones (UAVs) for FPV video and telecommand links, industrial robots and automated guided vehicles (AGVs) requiring real-time control and video feedback, autonomous surface vessels (USVs) and underwater vehicles (ROVs), security and surveillance cameras with bidirectional control, and custom communication infrastructure projects. The multiple serial interfaces (CAN, RS-232, TTL) make it straightforward to connect sensors, motor controllers, and GPS modules without additional interface boards.

Why Choose This System

The TDD-COFDM OEM board delivers the lowest-latency wireless video and data link available in a board-mount form factor. System integrators avoid months of RF development and certification work — the board drops into a standard 90 x 55 mm footprint, connects to power and Ethernet, and transmits full-duplex IP data at 30 Mbps with 30 ms latency. For drone, robot, and embedded system builders, it is the shortest path to production-ready wireless connectivity.