XR4 Gemini Xrossband Dual-Band ExpressLRS Receiver
₹4,399.00 ₹5,299.00
The RadioMaster XR4 is a cutting-edge true diversity dual-band receiver featuring dual LR1121 RF transceivers, designed to leverage the advanced ExpressLRS Gemini Xrossband protocol. Supporting both 2.4GHz and Sub-G 900MHz bands, it delivers superior reception sensitivity, ultra-low latency, and rock-solid connection stability for demanding FPV and UAV operations.
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Product Details
Features :
- True diversity dual-band architecture delivering unmatched reliability with ExpressLRS Gemini Xrossband.
- Compatible with ExpressLRS 2.4GHz, Sub-G 900MHz, Gemini, and Gemini Xrossband (Gem-X) protocols.
- Powered by an ESP32D4 high-performance MCU paired with twin Semtech LR1121 transceivers.
- Equipped with a secondary UART port for advanced functionality and easy sensor integration.
- Castled pads designed for secure soldering and flexible installation in tight builds.
Technical Details :
- Item Code: XR4 Gemini Xrossband Dual-Band Receiver
- MCU Controller: ESP32D4
- RF Chipset: LR1121 x 2
- Frequency Bands: 2.4GHz / Sub-G 900MHz
- Working Voltage: DC 4.5 - 8.4V
- Dimensions & Weight: 22mm x 18mm x 4mm | 1.7g (Without Antenna)
Additional Details:
Manufacturer: RadioMaster
Brand: RadioMaster
Generic Name: Dual-Band ExpressLRS Receiver
Sold By: UAV Marketplace
Ideal For: Long-range FPV drones, industrial UAVs, and high-performance racing platforms
Package Details:
1x RadioMaster XR4 Dual-Band Receiver, 2x Dual-Band T-Antennas, 1x CRSF Wire, 3x Heat-Shrinkable Tubes, 1x Manual Card
FAQs:
Q1) What frequency bands does the RadioMaster XR4 support?
Ans : It supports both 2.4GHz and Sub-G 900MHz frequency bands using dual RF circuits.
Q2) What MCU and RF chips are used in the XR4 receiver?
Ans : It features an ESP32D4 MCU paired with twin Semtech LR1121 transceivers.
Q3) What is the weight of the XR4 receiver without antennas?
Ans : It weighs an ultra-light 1.7 grams, making it ideal for weight-sensitive builds.
