The FGr4B receiver is compatible with all AFHDS 3 transmitters (Note: It is currently applicable to PL18 1.0.55, NB4 2.0.93 and NB4 lite 1.0.10 and later versions. The high-frequency library used by the firmware is version 3.0.)
It uses a single-antenna bidirectional transmission system and is uniquely designed to install and output PWM/ PPM/i-bus/S.BUS/i-bus2 in signals. It supports all AFHDS3 transmitter .
The FGr4B receiver adopts Flysky's third-generation automatic frequency hopping digital system (AFHDS 3).
Adaptive transmitter: all transmitter supporting AFHDS3 (PL18, NB4,NB4 Lite,etc.)
(Note: It is currently applicable to PL18 1.0.55, NB4 2.0.93 and NB4 lite 1.0.10 and later versions. The high-frequency library used by the firmware is version 3.0.)
