RadioMaster XR3 Nano Multi-Frequency Antenna Diversity ExpressLRS Receiver - Choose Antenna

The XR3 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. Check out all our ExpressLRS Products, Receivers, and the rest of our RadioMaster Products! 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. Tailored to Your Needs The XR3 Receiver is available in three configurations, ensuring you have the flexibility to meet your exact requirements: Choose between 2.4GHz, Sub-G 900MHz, or a Dual-Band antenna that allows switching between 2.4Ghz and 900Mhz without an antenna change! All antenna types are available as optional accessories so you can change frequency at a later stage without needing to purchase a new receiver! 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 [ISM 2.4GHz / FCC915 / EU868] 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 Package Includes: 1 * XR3 Nano Multi-Frequency Antenna Diversity ExpressLRS Receiver 2 * T Antenna (Either 2.4GHz, 900Mhz or Dual-band depending on selected package) 1 * CRSF Wire 3 * Heat-Shrinkable Tube 1 * Manual Card