GRT STATUS: INVALID FINE MAGNETOMETER CALIBRATION DATA

Well, something changed from yesterday. I got the message in the title this morning.

When I looked deeper I found:

MAGNETOMETER #1 CALIBRATION INVALID
MAGNETOMETER #2 CALIBRATION INVALID

I have found in the manual how to perform the calibration and hope the simple procedure addresses the issue.

Sounds like a normal initial setup procedure that was never done. System will fly without it but it will throw the message you got.

So I was able to calibrate the magnetometer but it seems off by more than 5 degrees. I need a better north south taxiway to refine the calibration.