Radiomaster XR3 DB Nano Multi-Frequency Antenna Diversity ExpressLRS Receiver

The XR3 Receiver is an ultra-compact, high-performance ExpressLRS solution designed for pilots who demand reliability without sacrificing space or weight. Measuring just 20 × 15 mm, the XR3 packs serious capability into a remarkably small footprint, making it ideal for everything from lightweight freestyle builds to long-range platforms.

Powered by the third-generation Semtech LR1121 transceiver and an ESP32-C3 MCU, the XR3 supports operation on 2.4 GHz or Sub-G 900 MHz, delivering excellent sensitivity, strong link performance, and outstanding range on either band. With antenna diversity, signal stability is further improved, ensuring a solid connection even in challenging RF environments.

Built on the proven reliability of ExpressLRS, the XR3 lets you focus on flying instead of link quality. Thoughtful design touches—like castled pads and expanded I/O—make installation easy and unlock advanced integration options for demanding builds.

Features:

1. ExpressLRS support 2.4 GHz or Sub-G 900 MHz operation
2. Semtech LR1121 transceiver Exceptional range and sensitivity
3. Antenna diversity Improved signal stability and link reliability
4. ESP32-C3 high-performance MCU
5. Additional UART port for peripherals and expansion
6. Secondary port for advanced functionality
7. Castled pads for easy, clean soldering

Package Includes:

1 x XR3 Nano Multi-Frequency Antenna Diversity ExpressLRS Receiver

2 X T Antenna (Either 2.4GHz, 900Mhz or Dual-band depending on selected package)

1 X CRSF Wire

3 X Heat-Shrinkable Tube

1 X Manual Card