On Sun, Jan 19, 2003 at 11:49:01PM -0800, Greg DesBrisay wrote:
> Sure, I do this all the time. 
> GPS units work great (as long as you're outdoors and you're not
> surrounded by too many tall buildings).
> Just about any brand works fine.
> Most of my experience has been with Garmin gear, and older Trimble gear.
> 
> What exactly are you trying to accomplish?
> 
> If all you want to do is determine if your link is unobstructed, then
> eyeballing your link may be the most effective thing, given that your
> potential link is only two miles long.
> 
> For longer links, for links with obstructions, or for links that you
> want to document, you can use the lat/lon measurements you get along
> with a topographic map (or topo-map software like Topo-USA from
> Delorme--cheap and good in my experience) to figure out if you've got
> enough clearance over hills, etc.. (It takes a bit more work to account
> for the height of buildings or trees along the path.)

And it doesn't take into account refraction and curvature of the earth.

Tim
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