unknown vibration [solved]

[jet]

Hi, all.
I met a serious problem with my AQ6.

My components included:
1.Motors were 3110 700kv and Props were 10x55.
2.ESC was Q-brain 4-in-1 25A.
3.My RC was Spektrum DX7s with AR8000 receiver.
4.To overcome vertical altitude override, the FACTOR_THROTTLE was changed to 0.75. The other settings were default.
5.My frame was 550mm Quad-X.

In the position-hold mode (GPS was 3D-fixed), when the throttle was middle, my AQ6 flied up and down.
During the tests, no strong wind existed.
The video was here ().
I checked the log file ().
Everything looked well as Figs.1 and 2 shown.
I cannot find out the problem.
Please help me.

Thanks for help.

[aBUGSworstnightmare]

... without looking at the Video or the logs some questions: is your Baro shielded with foam! Do you use an AIMU or DIMU?

From the wiki: http://autoquad.org/wiki/wiki/configuri ... eshooting/

[jet]

Thanks aBUGSworstnightmare.
I had tried your method.
However, the problem still existed.
Other suggestions?
Thanks for help.

[jet]

Hi, all.
After several months, I found the appropriate PID; so, the problem was solved.
Thanks for help.