Guys, I know it’s not right place for this question, but as you advised me here to use notch filter, I’ll try:
I measured prop vibrations frequency from a log by FFT exactly as described (119Hz on a light 6’’ quad), but now I’m in doubts what value I should I use for MOT_THST_HOVER.
After setting MOT_HOVER_LEARN = 2 and hovering flight I read MOT_THST_HOVER = 0.17.
It seem to be wrong value because my quad is normally reasonably powered and at hovering sends to ESCs servo value around 1420uS. If I interpolate 1420 between 1000uS (0%TH) and 1900uS (100%TH) it’s about 47% of TH, which is reasonable but far from 17% saved in MOT_THST_HOVER. What value should I use? Why is autolearnt throttle so strange?
For reference the log is here .
It’s another quad than we spoke before, but I think this needs notch even more. I hovered indoor (outside is still unflyable weather even is end of May 
)
Thanks!
Roman