PPRuNe Forums - View Single Post - How do hand-held GPSs know which way they’re pointing?
Old 1st Sep 2002, 19:51
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greengage22
 
Join Date: Feb 2002
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What, even for a mountain walker?

Do you have any sources for this?

I'm not suspicious: you obviously know what you're talking about.

I'd just like to research it further.
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