Do you mean 13 feet radius or 13 feet diameter? I was seeing a
vertical error of approximately +/-10 feet (although I'd believe 13 ;)
Horizontally I was seeing approx +/- .0015 minutes in both lattitude
and longitude (which equates out to approximately +/-9 feet).
Considering the inacuracy of my
Yes, my little Garmin GPS III+ now reports error circles as low as
13 feet (as opposed to about 200 before the change). This is *very*
nice for people who need that level of precision. Of course, minor
errors in the map database become glaringly obvious when you
can tell which lane you're drivin
