RadioMaster XR4 Gemini Xrossband Dual-Band ExpressLRS Receiver
The RadioMaster XR4 Gemini Xrossband is a dual-band ExpressLRS receiver featuring twin Semtech LR1121 RF chips for simultaneous 2.4GHz and 900MHz operation. It delivers ultra-low latency, up to 1000Hz refresh rates, and flexible integration via CRSF and UART interfaces for advanced FPV drone and fixed-wing aircraft builds.
Features
- Dual-band operation with twin Semtech LR1121 chips for 2.4GHz and 900MHz frequencies.
- Ultra-compact and lightweight design at 22x18x4 mm and just 1.7 grams.
- Pre-installed ExpressLRS v3.5.1 firmware with true diversity and up to 1000Hz refresh rates.
- Dual communication interfaces: CRSF for telemetry and UART for flexible integration.
- Integrated ESP32D4 MCU with Wi-Fi for easy WebUI configuration and firmware updates.
Out of stock
The RadioMaster XR4 Gemini Xrossband receiver is engineered for pilots demanding maximum RF link stability and minimal latency. Its dual-band architecture, powered by two independent Semtech LR1121 transceivers, allows simultaneous operation on both 2.4GHz and Sub-G 900MHz ISM bands. This provides robust signal penetration and redundancy, ensuring a rock-solid connection in challenging RF environments.
Built around an ESP32D4 microcontroller, the receiver supports integrated Wi-Fi for convenient access to a Web-based configuration interface, simplifying setup and firmware management. The compact castellated pad design facilitates easy soldering into tight builds, while its ultra-lightweight form factor minimizes impact on aircraft performance. The dual-bus architecture, featuring both CRSF and UART, offers unparalleled flexibility for integration with a wide range of flight controllers and peripherals.
Additional Information
| Weight | 0.0017 kg |
|---|---|
| Dimensions | 2.2 × 1.8 × 0.4 cm |
