[OSM-newbies] aerial imagery vs OSM data - which is correct?

[Phil! Gold]

* John F. Eldredge <john at jfeldredge.com> [2012-02-21 11:04 -0600]:
> One oddity I have noticed with both car and cell-phone GPS is that it
> seems to be more accurate when I am moving than when I am standing
> still.

I have heard that moving rapidly with a GPS allows it to get a better fix
on the signals from the GPS satellites because it reduces the effect of
echoes and reflections of those signals caused by surrounding buildings
and other structures.  I can't find any authoritative statements of that
claim, though, so take it with a grain of salt.

I have, however, noticed the same effects.  My GPS seems most accurate
when placed just under my car's windshield and when I'm traveling 40-50
mph or more.

-- 
...computer contrarian of the first order... / http://aperiodic.net/phil/
PGP: 026A27F2  print: D200 5BDB FC4B B24A 9248  9F7A 4322 2D22 026A 27F2
--- --
Hmm...how do we know you are the REAL Angel of Death?
                       -- Famous Last Words, #915
---- --- --