RadioMaster DBR4 Dual Band Gemini ExpressLRS Receiver Module 2.4GHZ 868/900MHZ RX Antenna Remote Control FPV Racing Drone Parts
Brand Name:OEM ODM
Minimum Order Quantity:2 pieces
Application:public places, UAV FPV Drone
feature:Durable, Remote Control
Place of Origin:China
Product name:DBR4 Dual Band Xross Gemini ExpressLRS Receiver Module
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Location:
Shenzhen China
Address:
Building G,No.2,Nikeng 3rd Road,Guanlan Street, Longhua District, Shenzhen
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within 38 hours
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Product Details
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 | 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 |
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 |
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 , catering specifically to Mavlink users for a more link and
reduced interference. Dual Band X150Hz (-112dBm) * Gemini Mode: Experience simultaneous sub-GHz and 2.4GHz
transmissions, providing 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. |
Weight . |
Size |
Package Includes * 1 * DBR4 Gemini Xrossband ExpressLRS Receiver * 2 * 2.4 GHz wire antennas * 2 * 900 MHz wire antennas * 1 * CRSF wire * 4 * 4mm Red vibration dampeners * 4 * 3mm Black vibration dampeners * 1 * Manual card |
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RadioMaster DBR4 Dual Band Gemini ExpressLRS Receiver Module 2.4GHZ 868/900MHZ RX Antenna Remote Control FPV Racing Drone Parts
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