>>Then your GPS has a built in magnetic compass..

DC> Uh... no... that's why I have a compass...

>>A TRUE GPS can not tell directions while your standing still.

DC> Define 'tell directions'... What a GPS does best is to tell you what
DC> distance and bearing one point (your destination, tower, camp, fishing hole,
DC> etc) is from where you are right now (i.e. client site). If you are in
DC> motion, you can make your 'course over ground' match the desired bearing and
DC> run straight up to you desired point.

Ok. tell directions as in telling you what compass heading your
facing. Clear enough for you now ? Sure a GPS can tell distances and
bearings between 1 stored point and the current location but it can't
tell you what direction that bearing is UNLESS you have a built in
electronic compass or as in your case you use a external compass.

So the only way for a GPS to tell you your heading is if you move.
Great that we are in agreement.

DC> If you are not in motion, you have to have a compass to show you your
DC> desired heading.

There I have to both agree and disagree there are GPSs with
electronic compasses that can tell you heading even if your not in
motion.

>>If your GPS can tell you directions why not use it instead of the
>>compass to tell you what direction 143* is ?

DC> Still a question?

Ones again your GPS can't SHOW you the direction it can just calculate
the compass heading between your current location and a waypoint or
the heading between 2 waypoints.

I guess it all comes down to the choice of words "headings,
directions, bearing etc" for what is what and how you can tell what.

The computer system in the GPS can calculate the bearing then the compass
can show you the direction/heading of the bearing.

- Eje

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