GEPRC Linkflow 915M/2.4G Dual-Band TX Module

Overview:
The GEPRC Linkflow 915M/2.4G Dual-Band TX Module is a next-generation ExpressLRS transmitter module designed for JR bay radios. It is built around the Semtech LR1121 RF chip and supports dual-band operation across both sub-GHz (868/915MHz) and 2.4GHz frequencies, providing flexible control link compatibility within a single module.

The module is powered via an external 2–6S input through an XT30 connector and incorporates active cooling to maintain stable operating temperatures during high-output transmission. A TCXO (temperature-compensated crystal oscillator) is used to improve frequency stability under temperature variation, supporting consistent RF performance. It also integrates an ELRS backpack system and a UART interface for expanded peripheral functionality, including relay or receiver-style configurations where supported.

The Linkflow module supports firmware updates via USB and WiFi and includes an RGB status indicator for system feedback. A standard JR bay form factor ensures compatibility with a wide range of EdgeTX/OpenTX transmitters.

** This receiver contains a 915MHz ELRS transmitter. Please note that the use of this frequency band in the UK is currently illegal. Please make sure to flash the firmware onto the 868MHz band. **

Features:
- Dual-band ExpressLRS TX module supporting 868/915MHz and 2.4GHz operation
- Based on Semtech LR1121 RF chip
- JR bay/Micro compatible
- Active cooling system with integrated fan for thermal management
- TCXO frequency stabilisation for improved signal consistency
- Integrated ELRS backpack functionality for expanded system features
- UART interface support for relay or receiver-style configurations
- RGB LED status indication system
- Firmware update support via USB and WiFi
- External 2–6S power input supported via XT30 connector on base

Specification:
- Model: GEPRC Linkflow 915M/2.4G Dual-Band TX Module
- Operation Bands: 915MHz(FCC),868MHz(EU),2.4GHz(ISM)
- Module Bay Type: JR Bay
- Main Chip: ESP32
- Backpack Chip: ESP32-C3
- RF Chip: LR1121
- Output Power: 1000mW
- Oscillator: TCXO
- Refresh Rate: 50Hz-500Hz(LoRa),1000Hz(FSK)
- Antenna Connector: SMA
- Wi-Fi: Supported
- RGB Indicator: Supported
- External Power: 2-6S
- Weight: 60g(without antenna)

Included:
- 1x GEPRC Linkflow 915M/2.4G Dual-Band TX Module
- Accessories