[TowerTalk] Geomagnetic Field

[Brian Smithson]

I'm getting ready to orient a beam myself soon and there has been
some discussion of late on how to figure geomagnetic vs. true north.
Here is a link that will compute the correction given your lat/lon and
a date/time.


http://www.ngdc.noaa.gov/cgi-bin/seg/gmag/fldsnth1.pl
 

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