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    Re: Test your magnetic compass.
    From: Sean C
    Date: 2012 Nov 15, 09:19 -0800

    "I take bearings from a known location and then compare these with the bearings from google earth." -John H

    That's how I checked mine, as well. I found out through Google that if you drew a line from one corner of my roof to one corner of my neighbor's roof, it would run exactly North-South. So, I stood in my backyard and adjusted my position until the corners appeared to align, one directly over the other. I then took a bearing...: 10°, exactly right for the magnetic declination in this area.
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