"Did you set up the right rotation for your external GPS/Compass in Mission Planner?
I also installed nylon screws now and the offsets are still quite high..
369 -154 238
but a lot better than before"

"Yeah, but it could be, that the implementation in the software differs and there is a fault in the temperature compensation with just one of them."

"ok, because I think we are talking about the baro, and airspeed is another sensor, isn't it?"

"what about the altitude values?"

"I was thinking about the same thing, it looks like the temperature compensation is not active while using the autopilot.
I am having a drift of several meters after plugging in and leaving the aircraft sit on my bench for 10 minutes.."

"I got rid of the 3D printed case and am using no case now, as it is too high to fit between the 2 center plates without producing vibrations.
I am aware of the sunlight problem, thanks for reminding.
Just did the still standing baro test and it…"

"will try, but I am almost sure that the screws are the problem.
before the mounting change, the offsets were around 50 - 100.

I think that the steel screw could be your problem.
At my frame, the next screw is around 5-10cm away.
Maybe you can…"

"Hi,
thanks for your answers.
I changed the mounting from a 3D printed case to a selfmade mount that uses 4 screws through the holes in my AUAV-X2 board.
It just came to my mind that those screws are causing the trouble with the compass.. will try to…"

"Thanks for your answer.
So what to do now to get the data for the FFT? Also, I think this would need a much higher sampling rate, doesn't it? I think its 50Hz standard, which is too low for high frequency vibes."

"yeah, this software is a bit strange, I agree.
Okay, maybe I should try Moon Gel pads..
I will look into this and try to improve the z vibes before I fly the next time, thanks!"

"Thanks for your answer.
I have these mounting pads and thought of switching to the orange latex foam. But as this didn't work for you, I am afraid it won't help in my situation either..
The two plate mounting solution is no option for me because i…"

"somehow, I don't receive the activation mail :("

"Hello, I almost crashed today as my copter went crazy in stabilize mode while trying to position to land. It began to drift hard and I had to steer fully against the drift to catch it again. After estimated 2 seconds, it was stable again and I was…"

"confirmed. First thought is was my bluetooth driver, but as you are saying, version 1.3.32 works!"