Hey there,
attached are the logs of my recent flight, while taking the flight there are some twitches in between I don’t know why these happen33 01-01-1980 05-30-00.bin (252 KB) 33 01-01-1980 05-30-00.bin.log (470.3 KB) . twitches occur in between 9.19 to 9.20 mins.
33 01-01-1980 05-30-00.bin (252 KB) 33 01-01-1980 05-30-00.bin.log (470.3 KB)
Are you using the latest stable ArduCopter version - 4.0.4 ?
Did you tune the notch filters ?
Did you follow the tuning instructions on a no wind day?