Description The RadioMaster XR3 Nano Multi-Frequency Antenna Diversity ExpressLRS Receiver is a versatile, ultra-compact ExpressLRS receiver, measuring just 20 x 15mm. Powered by the advanced third-generation Semtech LR1121 transceiver, the XR3 operates seamlessly on 2.4GHz OR Sub-G 900MHz bands. Whether you’re flying on 2.4GHz or 900MHz, the XR3 delivers exceptional range and sensitivity in a small, lightweight package — perfect for any build. With the reliability of ExpressLRS, you can focus on flying without worrying about link quality. Designed for convenience, the XR3 features built-in Wi-Fi for effortless configuration and firmware updates. Access and manage settings through an intuitive WebUI on your PC or mobile device with ease. Features: Antenna Diversity for improved signal stability and range ExpressLRS 2.4GHz or Sub-G 900MHz ESP32C3 high-performance MCU Semtech LR1121 Transceiver Additional UART port Secondary port for advanced functionality Castled pads for easy soldering Specifications: Item: XR3 Nano Multi-Frequency Antenna Diversity ExpressLRS Receiver Type: ISM2.4, FCC915 MCU: ESP32C3 RF Chip: LR1121 RF connector: IPEX-1 X 2 Antenna: 2x T-Antenna (Either 2.4GHz, 900Mhz or Dual-band depending on selected package) Frequency Range: 2.4GHz / Sub-G 900MHz Telemetry Power: 100mw Maximum receive refresh rate: DK500Hz / K1000Hz Minimum receiver refresh rate: 25Hz Working voltage: DC 5.0 – 12.6v Weight: 1.3g (without antenna) Dimension: 22mm * 15mm * 4mm Firmware Version: ExpressLRS v3.5.1 pre-installed FW Target: RadioMaster XR3 2.4/900 Diversity RX Bus interface 1: CRSF Bus interface 2: UART Antenna Diversity The XR3 receiver features a Skyworks RFX2401C providing an LNA for improved receiver performance, a PA providing up to 100mW of telemetry performance and antenna switching for antenna diversity. Weight: Dimensions: Package Includes: 1 x RadioMaster XR3 Nano Multi-Frequency Antenna Diversity ExpressLRS Receiver
