What are the advantages of dual-band operation?

Dual-band mode combines the long-range reliability of 915MHz (ideal for open areas) with the high-speed, low-latency performance of 2.4GHz (better for urban/obstacle-heavy environments). This hybrid setup enhances anti-interference capabilities and ensures stable signal transmission in diverse conditions.

Do I need to use both antennas for dual-band mode?

Yes, dual-band operation requires both a 915MHz and a 2.4GHz antenna to be connected simultaneously. For single-band use (915M or 2.4G only), one antenna is sufficient. Ensure antennas are properly matched to their respective frequency bands.

Can I switch between single-band and dual-band modes easily?

Yes! Configure modes via the ExpressLRS Lua script on your transmitter or the ELRS Configurator. No physical modifications are needed. Ensure your TX module supports dual-band if using 915M+2.4G mode.

What is the maximum range of this receiver?

In optimal conditions: 915M mode: Up to 20km (12.4 miles) with a compatible high-power transmitter. 2.4G mode: Up to 10km (6.2 miles). Dual-band mode: Range depends on environmental factors but offers redundancy for improved reliability. Actual performance may vary due to interference or obstacles.

GEPRC ELRS 915M/2.4G Gemini Xrossband Receiver

About GEPRC ELRS 915M/2.4G Gemini Xrossband Receiver：

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.