[OB] geocaching - technology makes a new hobby
Wed, 09 Jan 2002 15:14:25 +0000
With all this discussion of navigation, it may be worth
pointing out that GPS gives only position, not bearings.
It won't tell you which direction is WNW, or 337.5*.
Most receivers, if they are moving, can turn the series
of positions into a direction vector. But in most cases
where GPS is important, that's not as good as a simple
compass. So if you want to package it all into one
integrated, digital unit for "annotated reality," make
sure to include a fluxgate compass.
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