Throttle oscillation / pulsing motors in loiter

ArduCopter Copter 3.1
1

Hi,

My hexacopter hovers at about 25% throttle in stabilize. When I switch to loiter, I can hear the motors pulsing.

My thoughts are that this is an oscillation and that the throttle increase is causing the copter to overshoot the desired altitude.

If this a likely reason? and if so, is there a PID that can be adjusted for throttle or ALT-HOLD that can adjusted to reduce the correction.

Thanks
Jamie

2

@jaiume,
Providing tlogs and/or data flash logs will greatly improve the chances of identifying and resolving your issue.
Regards,
TCIII GM