dual-channel Gemini receiver ensures seamless compatibility with the Nomad module. With its ability to simultaneously receive 2.4GHz and 900MHz signals, the DBR4 offers exceptional interference rejection and reliable signal integrity. Trust the DBR4 for robust performance and explore new horizons with confidence.

Features
Supports ExpressLRS Gemini 868/900MHz
Supports ExpressLRS Gemini 2.4GHz
2x 100mw Telemetry RF Power
Gemini Xrossband Technology
Advanced Cooling System
20x20 Mounting Holes
4 Discrete Antennas
Compatibility

Specifications
Maximum Receive Refresh Rate: 500Hz (1000Hz coming soon in ExpressLRS V3.4)
Frequency Range: 2.404 - 2.479 GHz / 903.5 - 926.9 MHz
Weight: 2.70g (without antennas) / 5.30g (with antennas)
Item: DBR4 Gemini Xrossband ExpressLRS Receiver
Firmware Version: ExpressLRS v3.3.2 pre-installed
Antenna: 2 2.4GHz Wires & 2 900MHz Wires
Minimum Receiver Refresh Rate: 50Hz
Telemetry RF Power: Max 100mW
Working Voltage: DC 4.5 - 8.4V
Dimensions: 27.20 27.20 mm
RF Chip: Semtech LR1121 2
Type: ISM_2.4, FCC_915
Bus Interface: CRSF
MCU: ESP32

Includes
1x RadioMaster DBR4 Dual-Band Xross Gemini ExpressLRS Receiver
4x 3mm Black Vibration Dampeners
4x 4mm Red Vibration Dampeners
1x Manual Card
1x CRSF Wire