I’ve just received my new Mercury box for my 31Kg F15 jet and I appreciate all the great functionalities of this compact device.
However, I have a big issue with all servos as there is an unacceptable shaking during servo travel. No problem at centre position, only when stick are moving, whatever slowly or quickly. This shaking is important on large control surface as the big elevator on large F15.
Of course I have read other threads on this forum and I have done the following tests:
Change output voltage 7,4 to 5,9v
Test all the framerate from 12ms to 21ms (better to 21ms but still shaking)
I am using 2 PAD (Power Absorbing Device) from HITEC as I use Brushless servo, I also tried 3 or 4 PAD without effect.
The fact is when servos are plugged on the receiver GR32, there is no problem at all, no shaking effect, so it seems the issue come from the mercury.
My configuration is the following:
Mercury SRS V08
2 Receivers Graupner GR-32 (HoTT output S SUMD of 16)
2 LiIon batteries 7,2v 5200mAh
All servos are Digital HV, high performances.
Servos used are the following: Hitec Brushless HSB-9380TH and HSB-9370TH, Graupner Brushless HBS860BBMG and Coreless HCM870BBMG
I also tried to reload the update (V08) via the Bluecom adapter, and the control what ok during the first minutes but the shacking effect comeback after 10 minutes.
I will post a video to show the shacking effect on elevator.
I assume that I cannot perform the maiden flight with this situation, and the French autorithies will never accept to deliver the flight acceptance for this model with such flight control shaking.
Thank you for your support.