(Fixing eCompass Residual Azimuth Deviation Errors)
Row, row, row your boat gently up/down the stream???
Purpose: This blog is provided to show users of smartphone compass apps and/or laser rangefinders (with an electronic compass) that it is quite easy (within their grasp) to enhance the accuracy of their azimuth readings – beyond the level of accuracy provided by vendor’s/manufacturer’s recommended calibration procedures. The compass user should always know (with confidence) whether to go Up or Down the stream!
Tru-Path 
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