COFDM DVB-T SDI Wireless Video Transmitter TX Module H.264 1080i50 2.2GHz (100-3500MHz)

COFDM DVB-T SDI Wireless Video Transmitter TX Module H.264 1080i50 2.2GHz (100-3500MHz)

H.264 1080i50 · 2.2GHz · Adjustable RF Power · Video + Data · work with Vislink and Domo receiver

Overview

This COFDM DVB-T SDI wireless video transmitter TX module is a professional-grade solution designed for broadcast, live production, and OEM system integration. It supports H.264 HD video encoding, 1080i50 resolution, and SDI video input, delivering stable and low-latency wireless transmission in complex RF environments.

The transmitter is supplied as a board-level module, ideal for customers who already own compatible receivers (such as Vislink or Domo) and are looking for a reliable, flexible transmitter only. With support for 2.2GHz operation, external power amplifiers up to 20W, and video + data transmission, this module is widely used in ENG, OB vans, sports broadcasting, and custom wireless camera systems.

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Features

• COFDM / DVB-T modulation for stable HD wireless transmission

• H.264 video compression

• Supports 1080i50 HD video format

• Professional SDI video input

• 2.2GHz transmission support

• Adjustable RF output power with external PA

• Video + data transmission via RS232

• Modular board design for OEM integration

• Compatible with external frequency down-converter

• One-way or optional two-way (bidirectional) system available

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Video & Encoding Performance

This transmitter supports H.264 encoding, ensuring efficient bandwidth usage while maintaining broadcast-quality image performance. The supported 1080i50 format makes it suitable for European broadcast standards and professional camera systems.

With SDI input, the module can be directly connected to:

• Broadcast cameras

• Camera control units (CCU)

• Video switchers

• Professional SDI output devices

COFDM modulation ensures strong resistance to multipath interference, making the system reliable in urban environments, stadiums, and mobile applications.

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Frequency Band & Receiver Compatibility

• Transmitter operating frequency: 2.2GHz

• Typical receiver frequency range: 170–860 MHz

For systems where the receiver does not directly support 2.2GHz, a frequency down-converter can be added to convert the signal from 2.2GHz to around 600MHz. This allows seamless compatibility with existing Vislink or Domo receivers, protecting previous investments and reducing system upgrade costs.

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RF Output Power & Power Amplifier Options

The transmitter module itself is designed to work with external RF power amplifiers (PA), allowing flexible output power selection depending on the application.

Available PA options:

• 1W

• 2.5W

• 5W

• 10W

• 20W

Important notes:

• 10W and 20W PA versions can be adjusted down to 5W output

• 1W and 2.5W PA versions cannot be increased to 5W

• Users may integrate their own external PA if required

This flexibility allows users to balance transmission distance, power consumption, and regulatory compliance.

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Modular Design for OEM Integration

This product is supplied as a module only:

• No metal enclosure

• No built-in power amplifier

• Compact PCB design

• Optimized for custom housings

It is ideal for:

• OEM manufacturers

• System integrators

• Custom camera transmitters

• Backpack and vehicle-mounted systems

The open modular architecture allows full customization according to project requirements.

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Configuration & Control

The transmitter parameters can be configured using an external parameter configuration panel.

Configuration options include:

• Transmission frequency

• Bandwidth

• Modulation parameters

• System settings

The configuration panel is easy to operate and does not require a PC or complex software.

• Configuration tool price: USD 35

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Video + Data Transmission

In addition to HD video, the transmitter supports data transmission via RS232.

Typical applications:

• Tally signal output

• Simple telemetry

• Camera-related control signals

If RS485 is required, an RS485-to-RS232 converter can be added (available as an option).

⚠ Transmission Direction Notice
The standard model supports one-way transmission only, meaning:

• Video and data are sent from transmitter to receiver

• Return data from receiver to transmitter is not supported

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Optional Two-Way (Bidirectional) Version

For advanced broadcast workflows such as:

• Camera RCP control

• Lens control

• Color and parameter adjustment

• Feedback telemetry

A two-way (bidirectional) COFDM transmitter system is available upon request. This version supports both forward and return data channels, enabling more complex control and monitoring scenarios.

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Typical Applications

• Broadcast wireless camera links

• ENG / EFP systems

• OB vans

• Sports and live event production

• UAV or mobile platforms

• OEM wireless video systems

• Integration with Vislink / Domo receivers

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Pricing Reference

• COFDM SDI transmitter module (board only): USD 6xx

• 10W RF power amplifier: USD 3xx

• Parameter configuration panel: USD 40

Prices may vary based on frequency band, customization, and order quantity.

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Why Choose This Transmitter?

• Professional broadcast-grade SDI solution

• Flexible RF power options up to 20W

• Compatible with existing receiver systems

• Modular design for OEM and custom integration

• Proven COFDM stability in demanding RF environments

This transmitter is an ideal choice for professionals who require reliable HD wireless video transmission with customization flexibility.

FAQ

Q: SDI has an input signal, but there’s no signal input or output from the RF port? Why is this indicator light not working?

A: If the SDI input is present but there is no RF input/output and the indicator LED is not lit, the most likely cause is a faulty or disconnected FPC ribbon cable between the boards.

Please check the following points:

1. FPC Ribbon Cable Issue (Most Likely Cause)

• The encoder board and the transmitter (baseband) board are connected via an FPC ribbon cable.

• If this cable is severely bent, damaged, or broken, communication between the two boards will fail.

• As a result:

  • No data is transmitted

  • The RF port has no input/output

  • The indicator LED does not light up

Action:

• Power off the unit.

• Carefully remove and replace the FPC ribbon cable.

• Ensure the cable is not folded sharply during installation.

⚠️ Important:
The FPC connector is a drawer-type (pull-out) connector, not a flip-lock type. Please pull it straight out gently to avoid damage.

2. Indicator LED Explanation

• The circled LED is the Ethernet/data communication indicator between the encoder board and the transmitter board.

• If this LED is off, it indicates that:

  • There is no network/data connection between the two boards

  • No data is being transmitted internally

This strongly suggests an issue with the FPC cable connection.

3. Assembly or Mechanical Interference (Secondary Check)

• If replacing the FPC cable does not resolve the issue:

  • Remove the board assembly

  • Check whether any components were pressed, misaligned, or affected during final assembly

In most cases, this issue is caused by a damaged or improperly connected FPC ribbon cable between the encoder board and the transmitter/baseband board. Replacing the FPC cable resolves the problem in the majority of cases.