Magnets in a bino harness?

[SkunkCabbage]

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[Jimdow528]

Perhaps you and your associates will want to know that I've performed numerous accuracy (or lack thereof) tests on multiple rangefinders (with compass) and smartphone apps (Android/iPhone) to prove that a) they all are quite inaccurate - up to 20 degrees or more and b) the azimuth errors can be corrected in almost all cases - down to the 1 to 2 degree range. These azimuth errors are "residual" (after calibration) deviation errors; and they have always existed even though the rangefinder / smartphone vendors just ignore them.

Take a look at the test results on "http://www.tru-path..org" and share these results with your associates. I'm sure some of your associates will be interested. There's more to come on this subject.

Thanks for your time and consideration

I played with my phone and a Silva, each goes off roughly 20deg when wearing my Marsupial harness.
Magnets have nothing to do with positional data (GPS).