The steering gear amplifier is suitable for any steering gear. It can magnify the steering gear from 90 degrees to 180 degrees The is simple, and there is no need to worry about the of the steering gear and PPM/PWM steering gear amplifier It only needs to be connected- in series with the steering gear channel you need- 180 degree steering gear (500-2500us), the remote control is 90 degrees, the is amplified- and the is 180 degrees