OpenStreetMap compatible GPS?

Jon 'maddog' Hall maddog at li.org
Wed Apr 28 12:07:09 EDT 2010


>As an ex military pilot, I learned how to read a map and find out where
>I am on the map.

As a sailor I was told to learn how to use a sextant.  I ordered one,
and to my dismay instead of receiving a cover for the cockpit of my boat
to give me some privacy for intimate gatherings, it turned out to be
some type of stupid navigational instrument. :-)

Unfortunately even sextants need technology in the form of a very
accurate clock to determine longitude (latitude is easily read once per
day), so you can't get away from the technology part.  And GPS systems
are much easier to use.

Still, I agree with learning to "read and interpret the map" in any
case, as well as learning to read aerial photographs if you fly a lot. I
don't think that anyone will disagree with that. 

It is the same thing as learning how to add, subtract, multiply and
divide before you start using a calculator.

md



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