GEPRC C3 Gemini Xrossband

Can’t decide between the penetration of 915MHz and the snappy refresh rates of 2.4GHz? Neither could GEPRC. So they shoved both into the C3 Gemini Xrossband Receiver. It’s the hardware equivalent of wearing a belt and braces while standing in a padded room. Welcome to the future of redundant redundancy.

Why You Want It

Let’s be honest: you probably fly in a field with two trees, but you’re convinced you need military-grade signal link stability. The Gemini Xrossband uses the Semtech LR1121 chip to run both bands simultaneously. It’s perfect for the pilot who wants to blame their crash on their thumbs rather than a failsafe. If you manage to drop a signal with this, you’ve likely flown into a different dimension, and honestly, that’s on you.

Specs

Model: GEPRC ELRS 915M / 2.4G C3 Gemini Xrossband Receiver

Dimensions: 18 × 23.6 × 5.7 mm

Chips: ESP32‑C3, LR1121 ×2

Weight: 1.6 g (receiver only)

Refresh Rate: 25 Hz – 1000 Hz (LoRa, FSK)

Crystal Oscillator: TCXO

Operating Voltage: 5 V

Antenna Connector: IPEX1

Firmware: GEPRC C3 900 / 2400 Gemini Xrossband RX

Telemetry Power: 100 mW

Serial Output Protocols: CRSF, SBUS, SUMD, DJI RS2 Pro, MAVLink

Frequency Bands: 915 MHz Gemini 2.4 GHz Gemini 915 MHz + 2.4 GHz Dual‑Band

Compatibility

Requires a Gemini Xrossband capable TX module (like the GemX TX) to unlock its full 'dual-personality' mode. It’s also backwards compatible with standard ELRS TX modules for when you’re feeling less adventurous.

Highlights

• Advanced ExpressLRS 915M/2.4G dual-frequency system - please note this is set to 868Mhz for EU/UK use, but you can switch via firmware.
• Based on Semtech’s third-generation LR1121 RF chip
• Compact at 18×23.6×5.7mm and weighing just 1.6g
• Supports 915M Gemini, 2.4G Gemini, 915M+2.4G dual-RF
• Features a temperature-compensated crystal oscillator (TCXO) for stable performance in varying temperatures
  
• Supports WiFi firmware updates
• Up to 100mW Telemetry
• Includes an SH1.0 connector for easy installation
  

Notes

Ensure your antennas are mounted correctly. If you mask them with carbon fibre and then complain about range, our support team is legally allowed to sigh audibly over the phone.

Disclaimer

Unmanned Tech is not responsible for any existential crises caused by having a more stable radio link than personal life choices.

Still Here?

Stop scrolling and buy the thing. If you're looking for the ultimate ELRS Gemini receiver for long-range FPV or high-interference racing, this GEPRC C3 is the sub-GHz and 2.4G hybrid your quad deserves. Add to cart before the bots do.