In my Mini Diamond Jet, 4 original servos were not strong enough (elevators and flaps). I changed for MKS 747 servos.
I did not have any trouble with the previous graupner servos.
I can clearly hear a regular pulsation and can see and feel a small oscillation at any position.
My set up : Powerbox Mercury / Jet DS 24 / 2 RSAT. The settings are those recommanded.
When I change the frame on the powerbox or on the radio the oscillations frequency change but remains.
When I test the servos without the Powerbox (connected directly to a classical receiver), I do not have any pulsation or oscillation. So this is the Powerbox that has trouble to handle MKS 747 servos.
Question : does anyone have the same problem and what can do Powerbox to solve it ? New software version ?
Sorry for my poor English and regards from France.