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posted to rec.boats.cruising
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external usenet poster
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First recorded activity by BoatBanter: Jul 2006
Posts: 7,757
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Computing Magnetic Field Values for your location
Interesting NOAA site... you plug in your zip code and out pops all sorts of
information. You can select specific dates, even download the data file.
http://www.ngdc.noaa.gov/geomagmodel...faultModel=WMM
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"j" ganz @@
www.sailnow.com
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