Kimpok Transmitter - micro ELRS TX-500MHz module

Kimpok micro ELRS TX-500MHz is an external ExpressLRS transmitter module designed for RC radios and FPV systems where a stable control link, low latency, and dependable performance over longer distances matter most. Operating on the 500 MHz band, this module is intended for use with compatible ELRS receivers working on the same frequency range.

The Kimpok ELRS TX-500MHz is a great match for FPV drones, RC planes, flying wings, and other remote-controlled builds. Its practical housing with a cooling fan, display, USB-C port, SMA antenna connector, and XT30 power input makes setup and everyday use much easier. The included antenna shown in the product photos helps get the module ready for reliable 500 MHz operation right away.

ExpressLRS 500 MHz for a Reliable RC Link

The Kimpok micro ELRS TX-500MHz runs on the ExpressLRS system, one of the most popular RC control solutions for FPV drones and hobby-grade RC models. The module is responsible for sending control signals from your radio to the receiver installed in the model, making it a key part of overall link quality, response speed, and flight confidence.

• 500 MHz band - built for compatible long-range ExpressLRS setups.
• ExpressLRS system - a modern RC link widely used in FPV and RC hobby applications.
• CRSF protocol - communication with radios that support this standard.
• Perfect for FPV and RC models - suitable for quads, wings, airplanes, and UAV-style projects.
• Requires a 500 MHz ELRS receiver - transmitter and receiver must operate on the same band.

Adjustable Output Power up to 1000mW

The Kimpok TX-500MHz features adjustable RF output power, allowing you to fine-tune performance to match your flying conditions, distance, model type, and local radio regulations. Lower power levels are ideal for setup, bench testing, and short-range flights, while higher settings offer more link headroom for demanding FPV use.

• 100mW - ideal for testing, setup, and shorter-range flights.
• 250mW - a balanced option for range, power consumption, and operating temperature.
• 500mW - increased power for more challenging FPV flights.
• 1000mW - maximum output for setups that need extra link margin.

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

Display, USB-C, and Easy Radio-Based Configuration

The Kimpok micro ELRS TX-500MHz includes a built-in screen and a control button for quick access to essential settings. The USB-C port makes firmware updates and configuration simple, while LUA script support on compatible radios allows you to adjust parameters directly from your transmitter.

The module supports 25Hz, 50Hz, 100Hz, and 200Hz packet rates. Lower refresh rates can help maintain a stronger link at longer distances, while higher rates are better suited for more dynamic flying where fast response is a priority.

• Built-in display for viewing key module settings.
• Control button for basic onboard operation.
• USB-C port for configuration and firmware updates.
• LUA script support on compatible radios.
• Refresh rates: 25 / 50 / 100 / 200Hz.

Active Cooling and a Solid Hobby-Grade Design

An ELRS transmitter module running at up to 1000mW can generate noticeable heat, which is why the Kimpok TX-500MHz is equipped with active cooling. The integrated fan and heatsink help maintain a more stable operating temperature, especially during longer sessions and at higher power levels.

The SMA connector allows you to attach a 500 MHz antenna, while the XT30 connector provides external power input. Before installation, make sure your radio is compatible with the micro module format, supports the CRSF protocol, and can be properly configured for ExpressLRS.

What’s Included and Important Usage Notes

The set includes the items shown in the product images: the Kimpok micro ELRS TX-500MHz transmitter module and a 500 MHz antenna. To use the module, you will also need a compatible RC radio and an ExpressLRS receiver operating on the same frequency band.

• Kimpok micro ELRS TX-500MHz - 1 pc
• 500 MHz antenna - 1 pc

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