FlySky FS-i6 2.4G 6CH AFHDS RC Transmitter With FS-iA6 Receiver
৳8834
DBR4 Dual Band Xross Gemini ExpressLRS Receiver
৳4800
The RadioMaster DBR4 is a high-performance dual-band receiver designed for FPV drone enthusiasts seeking enhanced range and reliability. Leveraging the Gemini Xrossband (Gem-X) technology, it simultaneously operates on both 2.4GHz and 900MHz frequencies, ensuring robust communication even in challenging environments.
Key Features
Dual-Band Operation: Supports both 2.4GHz and 900MHz frequencies, providing redundancy and improved signal stability.
Gemini Xrossband Technology: Utilizes dual Semtech LR1121 RF chips to transmit and receive on both bands simultaneously, reducing the risk of packet loss due to interference.
Telemetry RF Power: Offers a maximum telemetry RF power of 2x 100mW, ensuring reliable data transmission over long distances.
Antenna Configuration: Equipped with four discrete antennas (2 x 2.4GHz and 2 x 900MHz) for optimal signal reception.
Mounting Compatibility: Features 20x20mm mounting holes, making it compatible with a wide range of drone frames.
Firmware Support: Pre-installed with ExpressLRS v3.3.2, with support for upcoming features in ExpressLRS v3.4.
Specifications
MCU: ESP32
RF Chips: Semtech LR1121 x 2
Frequency Range:
2.404 - 2.479 GHz
903.5 - 926.9 MHz
Maximum Receive Refresh Rate: 500Hz (1000Hz support coming 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
Dimensions: 27.20 x 27.20 mm
