I and a few other people I have made 3.4.X flights with different ships observed systematically in the auto analysis of their logs an indication of this type (this is one example):
Max mag field length (702.43) > recommended (550.00)
We are all experienced Arducopter builders and we know how to setup correctly an external compass module far from any magnetic disturbances.
We have tried to setup our compass modules as far as 20 cm on non metallic stands, still getting this high max mag field warning.
So the questions coming to mind:
-why is this happening since version 3.4.3 ? (same setup does not produce same results on older firmware). Is there thus a mistake on the mag field logging in 3.4.X or another way ta calculate it in the latest mission planner ?
-What does this mean ?
thx for help