Setting up a new pixracer from mRobotics with ArduPlane 3.8.1 and have a servo connected to the aileron port 1.
After it boots up, I place the system into manual flight mode. The servo jitters. Also, it does not respond smoothly to aileron inputs from the transmitter; it seems to jump around a bit.
In RTL mode it operates little more smoothly in response to me changing the attitude of the flight controller, but still has some jitters.
I cannot find any parameters to set the PWM rate for servos, except for what seems to be a hard-coded parameter set at 50.
Is there something else I am missing? Thanks,