Introducing the DBR4 Receiver: the perfect companion to the RadioMaster Nomad. The DBR4 is a cutting-edge dual-band, dual-channel Gemini receiver that ensures seamless compatibility with the Nomad module. Engineered for superior performance, the DBR4 boasts two dual-band sections, each capable of simultaneously receiving 2.4GHz and 900MHz signals. This innovative design allows for the reception of two data streams simultaneously, providing exceptional interference rejection and eliminating the risk of lost packets. With the DBR4, you can trust that your signal remains robust and reliable, giving you the confidence to push your limits and explore new horizons. Elevate your RC experience with the unparalleled connectivity and performance of the DBR4 Receiver. Package Includes: 1x DBR4 Gemini Xrossband ExpressLRS Receiver 2x 2.4 GHz wire antennas 2x 900 MHz wire antennas 1x CRSF wire 4x 4mm Red vibration dampeners 4x 3mm Black vibration dampeners 1x Manual card Features: Telemetry RF power: Max 2x 100mw Experience unmatched reliability with dual-band ELRS Gemini Xrossband ExpressLRS Gemini 2.4GHz ExpressLRS Gemini 868/900MHz 4 Descrete antennas for optimal antenna arrangement 20 X 20mm mounting holes Xrossband GemX support Specifications: Item: DBR4 Gemini Xrossband ExpressLRS Receiver Type: ISM_2.4, FCC_915 MCU: ESP32 RF chip: Semtech LR1121 x 2 Telemetry RF power: Max 100mW Antenna: 2 x 2.4GHz wires & 2 x 900MHz wires Frequency Range: 2.404 - 2.479 GHz / 903.5 - 926.9 MHz Maximum receive refresh rate: 500Hz (1000Hz coming soon in ExpressLRS V3.4) Minimum receiver refresh rate: 50Hz Working voltage: DC 4.5 - 8.4V Weight: Without antennas 2.70g / With antennas 5.30g Dimension: 27.20 *27.20mm Firmware Version: ExpressLRS v3.3.2 pre-installed Bus interface: CRSF New Packet Rates Sub-GHz 250Hz (-111dBm) Speed Boost: Achieve faster packet rates with enhanced sub-GHz performance. Sub-GHz 200Hz Full (-111dBm) Optimized for Mavlink: Double the packet data of current 900 SX1276 hardware, catering specifically to Mavlink users for a more robust link and reduced interference. Dual Band X150Hz (-112dBm) Gemini Mode: Experience simultaneous sub-GHz and 2.4GHz transmissions, providing robust performance and reduced interference with a packet rate of 150Hz. Dual Band X100Hz Full (-112dBm) Enhanced Gemini Mode: Achieve the same dual-frequency transmission benefits at a 100Hz packet rate with full 16 channel resolution, ensuring strong and stable connectivity even in challenging environments. Introduction of K Modes DK500 (Coming in ExpressLRS V3.5) Design specifically from the ground up for lovers of speed and RC reliability. K modes are next generation FSK modulation with built in packet repair (Forward Error Correction). Just like FLRC D500, DK500 sends repeat packets to reduce packet loss in challenging race event environments. Coupled with a Gemini enabled Tx and Rx, nothing comes close to RC reliability. K1000 Full SubGHs (Coming in ExpressLRS V3.5) Yes, you read that right, 1000Hz in the 868/900MHz Domain! While this mode has been designed for maximum data throughput when used with MAVLink, don't be fooled by the 1000Hz, during development it was tested it at long range. Weight: Size:
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