Magnetic Sensors Error Problem Solved

[Bill Legge]

Over the last few months I've spent time trying to construct a GPS/compass tool to lay-out paddock fencing.
The problem has been the compass. I've tried: Click boards: Compass, Compass 2, Compass 4 and the very expensive HMC6343.
Occasionally getting good results but mostly large errors of anything up to 90 degrees and lack of angular resolution.

Found the problem yesterday - magnetic interference from the VDU on the desk near the test board.
I'd expect a bit but the disruption is a few degrees at about 70cms and completely disruptive at 10cms.

Possibly most know this already but it stuffed up my work for a good few days.
Regards Bill Legge in Australia

[filip]

Hi,

Thank you for this little research, I'm sure it will be helpful to our users

Regards,
Filip.