The XR3 Nano Multi-Frequency ExpressLRS Receiver- 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 WiFi for effortless configuration and firmware updates. Access and manage settings through an intuitive WebUI on your PC or mobile device with ease.
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!
Antenna: 2x T-Antenna (Either 2.4GHz, 900Mhz or Dual-band depending on selected package)
Description
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
Specification
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 4.5-8.4V
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
