On Fri, 2009-05-08 at 20:24 +0200, Rask Ingemann Lambertsen wrote: > On Fri, May 08, 2009 at 05:58:52AM +0800, Daniel.Li wrote: > > On Thu, 2009-05-07 at 08:53 -0700, jeremy jozwik wrote: > > > i use it all the time for editing the los angeles area. works great! > > > it can get a bit noisy when walking though > > > > Yes, if you use GoogleMap. I just "walking into a river" :( > > > > But I didn't analysis the data yet. But how can I walk into the > > river??? :) > > I believe it's what they call an urban canyon. When you have something > tall - usually a building - which reflects the GPS signals on one side of > you, you will appear to be in a different position than where you really > are. Whatch your HDOP values - it's the third of the slash separated values > shown by TangoGPS on the main screen. If it's as much as 4.5, the position > shown can easily be 30 - 40 m off.
Thanks for the info. Very great to know more about GPS, not just track where you have been, also how to use GPS accurately. :) > -- Daniel.Li <lida_m...@163.com> PALFocus (http://palfocus.oicp.net) _______________________________________________ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community