Product overview
The GEPRC ELRS 915M/2.4G Gemini Xrossband Receiver brings ExpressLRS reception to a compact dual-band design. Paired with 915M/2.4G antennas, its two LR1121 chips support switching between 915MHz Gemini, 2.4GHz Gemini and 915M+2.4G dual-band modes. Dual-band operation requires a dual-band TX module. The receiver is also compatible with existing 915M and 2.4G ELRS TX modules. Its Semtech third-generation LR1121 RF architecture supports 150 – 960MHz sub-GHz and 2.4GHz bands for simultaneous dual-band transmission, while dual-frequency operation enhances interference resistance and stability.
The receiver measures 18×23.6×5.7mm and weighs 1.7g for the receiver alone. Operating at 5V, it combines an ESP32-PICO-D4, two LR1121 chips and a TCXO temperature-compensated crystal oscillator for stable performance across temperature variations. Refresh rate spans 25Hz-1000Hz, with telemetry power up to 100mW. A built-in WiFi antenna supports firmware updates, and an SH1.0 connector simplifies installation. The antenna connector is ipex1. Supplied equipment comprises one receiver, two 915M/2.4G dual-band T-antennas, one heat shrink tube, one 4-pin silicone connection cable and one user manual.
