What makes the XR4's dual-band (2.4GHz/900MHz) feature unique?

The XR4 uses Gemini Xrossband technology to simultaneously operate on both 2.4GHz and 900MHz bands, ensuring unmatched reliability in challenging environments. This dual-band redundancy minimizes signal interference and extends range, making it ideal for long-range drones or areas with heavy RF congestion.

Is this receiver compatible with existing ExpressLRS systems?

Yes, the XR4 is fully compatible with ExpressLRS 2.4GHz, 900MHz, and Gemini/Gemini Xrossband (Gem-X) protocols. Ensure your transmitter module runs ExpressLRS v3.0 or later for full feature support.

How do I configure and update the receiver?

The built-in Wi-Fi module allows easy firmware updates and configuration via any web browser (WebUI). Simply connect to the receiver's Wi-Fi network and access the intuitive interface on your PC or mobile device.

What hardware advantages does the XR4 offer?

It features an ESP32D4 high-performance MCU and twin Semtech LR1121 transceivers for ultra-low latency (<10ms) and high refresh rates (up to 500Hz). The secondary UART port enables advanced telemetry and peripheral integration.

Can I use this for competitive FPV racing and long-range builds?

Absolutely. With true diversity antennas, dual independent RF circuits, and castled solder pads for robust connections, the XR4 delivers rock-solid signal stability in both high-speed racing scenarios and extended-range applications.

radiomaster xr4 gemini xrossband receiver

NEWRadiomaster XR4 Gemini Xrossband Dual-Band ExpressLRS Receiver

Q: Can I use this for competitive FPV racing and long-range builds?

Absolutely. With true diversity antennas, dual independent RF circuits, and castled solder pads for robust connections, the XR4 delivers rock-solid signal stability in both high-speed racing scenarios and extended-range applications.

About XR4 Gemini Xrossband Dual-Band ExpressLRS Receiver:

The XR4 Receiver is a cutting-edge true diversity dual-band receiver featuring dual LR1121 RF transceivers, designed to leverage the advanced ExpressLRS Gemini Xrossband protocol (Gem-X). It seamlessly supports both the 2.4GHz and Sub-G 900MHz bands, and its dual T-type antennas provide superior reception sensitivity and connection stability for optimal performance.

5.0

Sales：13Pcs

$34.99

~~$54.99~~

-36%

● True Diversity & Dual-Band.

● Unmatched reliability with ExpressLRS Gemini Xrossband.

● Compatible with ExpressLRS 2.4GHz, Sub-G 900MHz, Gemini & Gemini Xrossband (Gem-X).

● ESP32D4 high-performance MCU.

● Twin Semtech LR1121 Transceiver.

● Secondary UART port for advanced functionality.

● Castled pads for easy soldering.

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NEWRadiomaster XR4 Gemini Xrossband Dual-Band ExpressLRS Receiver

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