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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Hand Bearing Compass Deviation
From: Andrés Ruiz
Date: 2015 Jun 30, 12:33 +0200
From: Andrés Ruiz
Date: 2015 Jun 30, 12:33 +0200
After some tests and experiments, I am pretty surprised about the sensitive of the hand bearing compass, Hockey Puck, vion mini morin 2000, to the local magnetic fields that cause an excessive deviation.
Usually when I take bearings, I am very careful, and I try not to be under the influence of local mag field. Really I cannot reproduce the error.
I compared the vion with the steering compass at some courses, and the difference is less than 2º.
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In one test in land to a distant tower, the bearing changed 15º if I moved only 3 meters, really amazing, and the worst is that I could not identify the source of the deviation.
