Compass Calibration

I've calibrated the compass (using methods in various YT videos) several times. Each time I get different offsets for the calibration even though the machine hardware and location remains the same.

On every flight I get EKF warning of compass difference.

I have not done a compass MOT because I read somewhere that it shouldn't be done. But I can't find that text anywhere now.

What is the best method to get the compass calibrated correctly ?

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  • Compass cal will vary by as much as +- 50 so I would not put to much stock in that.

    For some reason the internal and external compass are deviating from each other possible causing your issue.

    If you could provide a log of the issue that may help.

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