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"Steve Lusardi" wrote in
: It's wonderful, but how do you use it? Steve "Larry" wrote in message ... http://www.geomag.us/models/WDMAM/WDMAM_NGDC_V1.1.pdf No WONDER the damned compass won't compensate! -- "iPad is to computing what Etch-A-Sketch is to art!" Larry I'm not sure. It's calibrated in nanoteslas + and - so there seems to be pushing and pulling the card at various magnetic levels that keep shifting, it seems. Zooming in on the Charleston-Savannah area, there are several strong magnetic anomalies of BOTH directions. This chart may also cause the compass to spin in both directions at times....a very worrying condition: http://www.kitco.com/images/live/gold.gif -- "iPad is to computing what Etch-A-Sketch is to art!" Larry |
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