RadioMaster XR4 Gemini Xrossband Dual-Band ExpressLRS Receiver

RadioMaster XR4 ELRS Receiver User Manual Product Description:The XR4 Receiver is a next-generation, true diversity dual-band ExpressLRS receiver, engineered for maximum reliability, range, and responsiveness. Featuring dual Semtech LR1121 RF transceivers, it supports both 2.4GHz and 900MHz Sub-G frequencies and leverages the ExpressLRS Gemini Xrossband (Gem-X) protocol for unmatched RF performance. With two fully independent RF circuits and dual T-type antennas, the XR4 provides exceptional reception sensitivity, superior link stability, and versatile operation—whether in single-frequency Gemini mode or Xrossband dual-band mode. Its compact design and minimal weight make it ideal for long-range drones, FPV quads, and fixed-wing aircraft where signal integrity is critical. The integrated Wi-Fi module enables fast and easy firmware updates and configuration via WebUI, accessible from your mobile device or PC—no cables or drivers required. Whether flying in dense RF environments or pushi