GEPRC ELRS Nano Dual 2.4G C3 True Diversity Receiver

GEPRC's ELRS Nano Dual is a 2.4 GHz ExpressLRS receiver with true diversity: two Semtech SX1281 RF chips, each with its own antenna, feed an ESP32-C3 processor that uses whichever path has the better signal. It suits freestyle, cinematic and long-range builds where the frame, battery or pilot's line of sight can shadow a single antenna in some orientations.

Key features

• Two independent receive chains (2 × SX1281) for a steadier link than a single-antenna receiver

• Refresh rates from 25 Hz up to 1000 Hz on the 2.4 GHz band

• TCXO oscillator prevents frequency drift as the board heats or cools

• Small 17 × 13 mm footprint at 1.1 g, with an SH1.0 4-pin lead supplied

• Two 80 mm 2.4 GHz T-antennas with IPEX1 connectors in the box

Specifications

• MCU: ESP32-C3

• RF chips: 2 × Semtech SX1281

• Frequency: 2.4 GHz ISM

• Refresh rate: 25–1000 Hz

• Telemetry power: 10 mW

• Operating voltage: 5V

• Antenna connectors: IPEX1 (U.FL)

• Dimensions: 17 × 13 mm

• Weight: 1.1 g (receiver only)

• Firmware target: GEPRC Nano True Diversity 2.4GHz RX

• In the box: receiver, 2 × 2.4 GHz T-antennas (IPEX1, 80 mm), SH1.0 4-pin silicone lead (100 mm), heat-shrink, manual

Mount the two antennas at right angles to each other, away from carbon plates and the VTX antenna, to get the full benefit of diversity. It binds to any 2.4 GHz ELRS transmitter running the same ELRS major version.