Radiomaster DBR4 Xrossband Gemini ELRS Receiver

The RadioMaster DBR4 Xrossband Gemini Receiver is the perfect match for the RadioMaster Nomad, bringing seamless compatibility and unmatched connectivity. Designed for pilots who demand performance, the DBR4 is a dual-band, dual-channel receiver that handles 2.4GHz and 900MHz signals simultaneously. This means two data streams at once, offering exceptional interference rejection and a reliable connection that keeps you in control, even in challenging conditions.

Built with two independent dual-band sections, the DBR4 doesn’t just promise signal stability—it delivers. Whether you’re pushing the limits of your RC aircraft or fine-tuning your latest FPV drone, this receiver ensures robust performance without the headache of lost packets.

Legal Notice: This receiver includes a 900MHz ELRS transmitter. Usage of the 900MHz frequency in the UK is currently illegal. Users must flash the firmware onto the 868MHz band to comply with regulations.

Key Features:

• Unmatched Dual-Band Technology: Experience dual-band ELRS Gemini Xrossband with simultaneous 2.4GHz and 900MHz reception.
• Powerful Telemetry: Maximum telemetry RF power of 2x 100mW ensures clear, reliable communication.
• Optimized Antenna Arrangement: Four discrete antennas provide superior signal strength and stability.
• Compact Design: 20x20mm mounting holes make it easy to integrate into any setup.
• GemX Xrossband Support: Enhanced compatibility and performance for complex builds.

Specifications:

• Type: ISM_2.4, FCC_915
• MCU: ESP32
• RF Chip: Semtech LR1121 x 2
• Telemetry RF Power: Max 100mW
• Antenna Setup: 2 x 2.4GHz wires, 2 x 900MHz wires
• Frequency Range: 2.404 – 2.479 GHz / 903.5 – 926.9 MHz
• Receiver Refresh Rate: Max 500Hz, Min 50Hz
• Working Voltage: DC 4.5 – 8.4V
• Weight: 2.70g (without antennas), 5.30g (with antennas)
• Dimensions: 27.20 x 27.20mm
• Firmware Version: ExpressLRS v3.3.2 pre-installed
• Bus Interface: CRSF

What’s in the Box:

• 1x Radiomaster DBR4 Gemini Xrossband ELRS Receiver
• Assorted Accessories (may vary based on supply)

Disclaimer: Accessories included may vary depending on supply. Always verify contents before use.