The FlySky FGr4D is a compact 4-channel 2.4GHz receiver built on FlySky’s advanced AFHDS3 protocol, designed for RC cars and boats that need reliable, low-latency signal performance and modern telemetry capability. It features dual built-in antennas for improved signal stability and range, making it more robust than older single-antenna receivers.
It supports multiple output formats including PWM, PPM, i-BUS2, and S.BUS, allowing it to work with a wide range of ESCs, servos, and accessory modules.
Key features:
4-channel AFHDS3 receiver for cars and boats
Dual antenna design for stronger signal reliability
Multi-output support (PWM / S.BUS / i-BUS / PPM)
Telemetry capable depending on transmitter setup
Compact and lightweight (~7g class)
Wide voltage input range (3.5V–9V)
Firmware update support via compatible FlySky radios