The GEPRC ELRS 915M/2.4G Gemini Xrossband Receiver is a new dual-band system developed from the ExpressLRS open-source project. It is designed based on Semtech’s third-generation LR1121 RF chip, supporting 150 – 960MHz (sub-GHz) and 2.4GHz bands for simultaneous dual-band transmission.

The ELRS 915M/2.4G Gemini Xrossband Receiver features dual LR1121 chips, allowing easy switching between 915M Gemini, 2.4G Gemini, and dual-band 915M+2.4G modes (requires dual-band TX module support) when paired with 915M/2.4G antennas. It is fully compatible with existing 915M and 2.4G ELRS TX modules.

In dual-frequency mode, it provides enhanced anti-interference and stability. The TCXO temperature-compensated crystal oscillator ensures reliable performance across temperature variations, with telemetry power up to 100mW. The built-in WiFi antenna facilitates effortless firmware updates, and the SH1.0 connector simplifies installation.

FEATURES

• Advanced ExpressLRS 915M/2.4G dual-frequency system
• Based on Semtech’s third-generation LR1121 RF chip
• Compact at 18×23.6×5.7mm and weighing just 1.7g
• Supports 915M Gemini, 2.4G Gemini, 915M+2.4G dual-RF
• Features a temperature-compensated crystal oscillator (TCXO) for stable performance in varying temperatures
• Telemetry power up to 100mW
• Refresh rate up to 1000Hz
• Supports WiFi firmware updates
• Includes an SH1.0 connector for easy installation

Specifications:

Dimension: 18×23.6×5.7mm

Weight: 1.7g (only receiver)

Chips: ESP32-PICO-D4, LR1121x2

Crystal Oscillator: TCXO

Frequency Bands: 915MHz Gemini,2.4GHz Gemini,915M+2.4G Dual-Band

Refresh Rate: 25Hz-1000Hz

Operating Voltage: 5V

Antenna Connector: ipex1

TLM Power: 100mW

Firmware: GEPRC 900/2400 Gemini Xrossband RX

Package Included:

1x ELRS 915M/2.4G Gemini Xrossband Receiver

2x 915M/2.4G Dual-band T-Antennas

1x Heat shrink tube

1x 4-pin silicone connect cable

1x User manual