External GPS antenna question

[Hammer Armin]

Hi Tom

 > Is accuracy much better with external antenna? I usually have
 > something like +/- 3-5m accuracy and need something better.

Hm. I only use the external antenna, but I think it's better
than +/- 3-5m. When I import my gps infos into google-earth
the waypoints follow quite accurate the bike-paths - which
are no more than 1-2m wide. Or on the highway it shows the
correct driving lane.

      Yours
       Armin