Radiomaster XR3 Nano Multi-Frequency Antenna Diversity – Dual Band

XR3 ExpressLRS Receiver Dual Band Diversity – Multi-Frequency FPV Receiver

The XR3 ExpressLRS receiver dual band diversity is a compact and high-performance receiver designed for FPV drones and RC systems. It supports both 2.4GHz and Sub-G 900MHz frequencies, providing flexibility, long range, and reliable signal performance in a single device.

The XR3 ExpressLRS receiver dual band diversity is powered by the advanced Semtech LR1121 transceiver and ESP32C3 MCU. As a result, it delivers ultra-low latency, fast response, and excellent sensitivity for demanding FPV applications.

Dual Band and Antenna Diversity Performance

This receiver features antenna diversity technology, which improves signal stability and range by switching between antennas automatically. In addition, users can choose between 2.4GHz, 900MHz, or dual-band configurations based on their flying needs.

The built-in WiFi allows easy firmware updates and configuration through a WebUI interface, making setup simple and convenient.

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

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!

 

Weight

Dimensions

Download

• XR3 Receiver User Manual

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

 

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