Available on backorder
RadioMaster XR4 Gemini Xrossband is an ultra-lightweight receiver that supports operation in the 2.4 GHz and 900 MHz bands. Equipped with two LR1121 chips and IPEX-1 connectors, it operates using CRSF and UART protocols and supports ExpressLRS version 3.5.1.
RadioMaster XR4 is an ultra-lightweight dual-band ExpressLRS Gemini Xrossband receiver that operates simultaneously at 2.4 GHz and 868/900 MHz. Two Semtech LR1121 chips provide parallel reception of two data streams to increase communication immunity to interference. Two complete antennas with IPEX-1 connectors can be flexibly placed on the drone. The receiver is pre-installed with ExpressLRS version 3.5.1 with support for DK500 and K1000 modes.
Key benefits:
Equipment:
| Frequency range | 900 MHz / 2400 MHz |
|---|---|
| Processor | ESP32-D4 |
| Feeding | 5.0-12.6V |
| Dimensions | 22mm * 18mm * 4mm |
| Weight | 1.7 g (without antennas) |
| RF chip | Semtech LR1121 * 2 |
| Update frequency | 50 Hz – DK500/K1000 Hz |
| Interface | CRSF, UART |
| Antenna connector | IPEX-1*2 |
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