How to enable mag_field in log?

ArduCopter Copter 3.2
1

I’m getting a compass fail in the log auto analysis so I’m trying to trouble shoot this:
Test: Compass = FAIL - Large change in mag_field (97.24%) Max mag field length (1048.16) > recommended (550.00)

I’ve tried following the wiki, but I am not seeing anything for the mag_field. I set the LOG_BITMASK variable to 43006 (NearlyAll as stated in MP), flew another test flight and still no mag_field data. I now see in the parameter list that NearlyAll bit value should be 45054. I’d like to confirm what should be the log bitmask value so I can log the mag_field and try to troubleshoot this.

Thanks for any help or guidance.

Warren M

2

set to nearly all if pixhawk, if apm you can but turn the logging back down when done.

3

Ok, so using 3DR Tower on my tablet (instead of Mission Planner on laptop) I set the LOG_BITMASK to NearlyAll (-6146) and still no mag_field captured?
What am I missing here?

Warren

4

mine is set to 45054 looking at a log, and has mag enabled.