RadioMaster XR3 Nano – ELRS Receiver 2.4GHz / 900MHz / Dual-Band

Radiomaster XR3 Nano Multi-Frequency Antenna Diversity ExpressLRS Receiver

Name: Radiomaster XR3 Nano Multi-Frequency Antenna Diversity ExpressLRS Receiver
Brand: RadioMaster
SKU: HP-157.XR3
Price: 154.77 PLN
Availability: InStock

RadioMaster

SKU: HP-157.XR3

154.77

Last items in stock – 3 szt.

30-day returns No questions asked
12 mo warranty Manufacturer + Avifly
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RadioMaster XR3 Nano – Multi-Frequency ExpressLRS Receiver with Antenna Diversity

Ultra-lightweight ELRS receiver with dual antennas, multi-band support, and Wi-Fi WebUI

The RadioMaster XR3 Nano is a compact and versatile ExpressLRS receiver featuring true antenna diversity for optimal signal stability. It is available in three distinct variants:

2 × Dual-Band (2.4GHz + 900MHz): Automatically selects the best signal across both frequency bands without antenna swapping.
2 × 2.4GHz: Optimized exclusively for 2.4GHz ELRS systems – perfect for racers and freestylers.
2 × Sub-G 900MHz: Built for long-range FPV setups operating in the Sub-G 868/915MHz band.

With onboard Wi-Fi and WebUI interface, firmware updates and configuration are quick and easy – no cables needed.

Key Features

● Dual antenna diversity for enhanced signal reliability and range
● Three variants: Dual-Band (2.4GHz + 900MHz), 2.4GHz only, or Sub-G 900MHz only
● Semtech LR1121 transceiver with ESP32-C3 MCU
● Built-in Wi-Fi for firmware upgrades via WebUI (no flashing required)
● Lightweight and compact: 22 × 15 × 4 mm; 1.3g (without antennas)

Technical Specifications

● Frequency Support: 2.4GHz and/or 868/915MHz Sub-G (based on variant)
● Telemetry Power Output: 100mW
● Packet Rate: 25Hz – 500Hz (2.4GHz) / up to 1000Hz (Sub-G)
● Operating Voltage: 4.5V – 8.4V DC
● Interfaces: CRSF (UART)
● Firmware: ExpressLRS v3.5.1 pre-installed

Package Contents

● 1× XR3 Nano Receiver
● 2× T-Antennas (Dual-Band, 2.4GHz, or 900MHz – based on selected version)
● 1× CRSF Cable
● 3× Heat-shrink Tubes
● 1× Quick Start Card

FAQ

Frequently Asked Questions about RadioMaster XR3 Nano ExpressLRS Receiver

How is the XR3 Nano different from the XR2 Nano?

The XR3 Nano supports both 2.4GHz and 900MHz frequency bands. You can use it with 2.4GHz, Sub-G (900MHz), or dual-band antennas that combine both ranges.

How many antennas does the XR3 Nano include?

It includes 2 antennas, depending on the version: either 2.4GHz, 900MHz, or dual-band. The receiver uses antenna diversity for signal reliability.

Does XR3 Nano support telemetry?

Yes – full telemetry is supported via ExpressLRS protocol.

Does it support Wi-Fi firmware updates?

Yes, it includes built-in Wi-Fi for WebUI configuration and firmware upgrades.

What voltage does it require?

The receiver runs on 5V power input.