[GRLUG] OT, but GPS, anyone?

[L. V. Lammert]

At 12:28 PM 8/26/2009 -0400, you wrote:
>But if that doesn't do it for you then I suppose the absolute minimum
>spacing is the GPS resolution which is normally 1 meter. Anything under
>that and gps positional uncertainty will overtake your sample accuracy.
>It would be best to space at least twice the GPS resolution but the
>farther apart the two points are the better your accuracy.

BUT taking a differential reading should theoretically cancel any position 
innaccuracy over a statistical sampling period, assuming identical GPS 
units and identical satellite usage - which is why I'm looking for any 
resources that might be available to answer the question.

         TFTR,

         Lee