Radiomaster XR3 Nano is a small receiver with antenna diversity for the ExpressLRS (ELRS) system. ExpressLRS is an advanced open-source RC system with long range, low latency, high refresh rate, and many useful features. Learn more about ELRS here.
The receiver uses one transceiver chip but is equipped with two antennas. It features the Semtech LR1121 chip, which allows operation on both 2.4GHz and 868/915MHz frequencies. However, due to the single chip, the receiver cannot receive on both frequencies simultaneously, but the frequency can be easily changed as needed. The 2.4GHz band is ideal for racing and freestyle, offering a fast refresh rate with minimal latency. The 868MHz band excels in its long-range capabilities. The receiver also includes a second set of UART pads for potential future expansion. It offers telemetry power up to 100mW and supports a power input range of 5-12.6V.
The variants differ only in the supplied antenna.
Key Features
- MCU: ESP32C3
- RF chip: Semtech LR1121
- Antenna connector: 2x IPEX-1
- Frequency band: 2.4GHz ISM / Sub-G 900MHz
- Size: 22 x 15 x 4mm
- Power supply: 5-12.6V
- Weight: 1.3g (without antenna)
- Telemetry power: 100mW
Package Includes
- 1x Receiver
- 2x Antenna
