Kimpok Transmitter - micro ELRS TX-868MHz module

Kimpok micro ELRS TX-868MHz is an external ExpressLRS transmitter module designed for RC radios and FPV systems where a stable control link, low latency, and reliable long-range performance matter most. Operating on the 868 MHz band and supporting the CRSF protocol, this module is built to work with compatible ELRS 868 MHz receivers in drones, fixed wings, airplanes, and other hobby-grade RC builds.

Made for FPV pilots and RC enthusiasts, the Kimpok ELRS TX-868MHz combines practical everyday usability with strong wireless performance. Its housing features active cooling, a built-in screen, an SMA antenna connector, and a USB-C port for quick setup and easy firmware updates. With the included antenna, you can get your setup ready faster and spend more time flying.

Why Choose the Kimpok ELRS TX-868MHz?

• 868 MHz ExpressLRS system – ideal for dependable long-range RC control.
• Low-latency performance – built for responsive flying and confident control.
• CRSF support – compatible with radios and setups that use this popular communication standard.
• Adjustable output power up to 1000 mW – tune performance to your flight style and conditions.
• Built-in display and control button – quick access to key settings directly on the module.
• USB-C configuration and updates – convenient connection for setup and firmware management.
• Active cooling system – fan and heatsink help maintain stable operation at higher power levels.
• Designed for FPV and RC hobby use – suitable for quads, wings, planes, and UAV projects.

ExpressLRS 868 MHz for Reliable Model Control

The Kimpok micro ELRS TX-868MHz uses the popular ExpressLRS system, widely appreciated in FPV and RC for its fast response, strong link stability, and broad tuning options. This module is responsible for transmitting control signals, not video, making it a key part of the communication chain between your radio transmitter and the receiver installed in your model.

• Operating band: 868 MHz
• System: ExpressLRS
• Protocol: CRSF
• Application: FPV drones, RC aircraft, flying wings, and UAV platforms
• Required receiver: ExpressLRS receiver operating on the same 868 MHz band

Adjustable Output Power up to 1000 mW

The Kimpok TX-868MHz offers adjustable RF output power, so you can match the link performance to your flying environment, distance, model type, and local radio regulations. Lower settings are great for testing and short-range flights, while higher power levels provide more signal headroom for demanding long-range setups.

• 100 mW – ideal for bench testing, setup, and short-distance flights.
• 250 mW – a practical balance of range, heat, and power consumption.
• 500 mW – a stronger option for more challenging FPV flights.
• 1000 mW – maximum output for setups that need extra link margin.

When using higher power levels, proper cooling is essential, and the antenna must always be connected. Operating the transmitter without an antenna may damage the RF output stage.

Screen, USB-C, and Easy Configuration

The Kimpok micro ELRS TX-868MHz is equipped with a screen and control button for easy access to basic module settings. The USB-C port simplifies firmware updates and setup, while LUA script support on compatible radios allows you to adjust settings directly from your transmitter interface.

The module supports packet rates of 25 Hz, 50 Hz, 100 Hz, and 200 Hz. Lower rates can help improve link stability over distance, while higher rates are better suited for more dynamic control where faster response matters.

• Built-in display for viewing operating settings.
• Control button for quick access to core functions.
• USB-C port for configuration and firmware updates.
• LUA script support on compatible radio systems.
• Supported refresh rates: 25 / 50 / 100 / 200 Hz.

Active Cooling and Durable Compact Design

An ELRS transmitter module running at up to 1000 mW can generate significant heat, so the Kimpok TX-868MHz includes an active cooling system. The built-in fan and heatsink help maintain a more stable operating temperature, especially during extended sessions and high-power use.

The module housing is compact yet well suited for field use. An SMA connector allows easy connection of the 868 MHz antenna, while the XT30 power connector supports external power input. Before installation, make sure your radio is compatible with the micro module format and supports the required CRSF protocol.

Technical Specifications

What’s Included

The set includes the items shown in the product presentation: the Kimpok micro ELRS TX-868MHz transmitter module and a 868 MHz antenna. A compatible RC radio and an ExpressLRS receiver operating on the same band are required for use.

• Kimpok micro ELRS TX-868MHz transmitter module – 1 pc
• 868 MHz antenna – 1 pc

Important Usage Notes

Always connect the antenna to the SMA port before powering on the module. Do not use the transmitter without an antenna, as this may damage the RF stage. Before flying, verify band compatibility with your receiver, check your ExpressLRS settings, bind phrase, output power, and failsafe configuration. Use only frequencies and power levels permitted by local radio regulations.