The problem with this approach is that it's unlikely to catch small geomagnetic distortions that are close to the magnetometers. E.g, the extent of the geomagnetic distortion caused by a screw in a wooden deck rail is typically only 1 or 2 inches.Personally, I prefer to check for magnetic interference independently of the Go4 App .... see my post #37 in this thread:
Phantom Rain : Magnetic Interference is the Phantom Killer in disguise:
Here is the final answer from DJI for the difference between P4P 1.0 and 2.0. In conclusion, my P4P v2.0 is working as it should.r.tapatalk.com
Checking the AC heading against the indicated heading in the Go App is very robust. By definition you're looking at the data that determines if there is a compass problem. There have been several incidents where a compass problem was revealed by this method yet no other indication from the Go App.
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