Has anyone have their heading/magnetometer calibration change?
I have been flying with it in my RV-9A for 3 years and the heading always made sense. Since the last AHRS upgrade, I did a re-calibration of the magnetometer. It hasn't been correct since. The best I can do now is it shows 15-18 degrees more than it should in all directions.
Could I start the calibration at 345 degrees instead of magnetic north to compensate?
I have been flying with it in my RV-9A for 3 years and the heading always made sense. Since the last AHRS upgrade, I did a re-calibration of the magnetometer. It hasn't been correct since. The best I can do now is it shows 15-18 degrees more than it should in all directions.
Could I start the calibration at 345 degrees instead of magnetic north to compensate?