At 12:51 PM 5/12/00 -0400, Dave C wrote:

>Some one indicated that there could be 100's of meters of error. Not so, In
>the US, Selective Ability (SA) employed by the owners fo the system (DoD)
>for civilian receivers is between 15m and 100 meters (which is hundreds of
>feet) horizontally and between 100m-156m vertical.
>100m supposedly happens no more than 1:20 position fixes and then there is a
>much larger error of  300m no more than 1:1000 position fixes.

In case anyone missed the news, the DOD has stopped scrambling any portion
of the GPS signals.  The net result is that you should find that your newer
GPS is now way more accurate than before.

Chris