I'm not sure where the fault lies, but with tangogps, I seem to get a scatter plot displayed for my position. Initially the fix seems accurate, then it starts to wander, although I may not be. If I am moving, the trial doesn't seem to follow the route I've taken. I think it may be tangogps, but I thought I'd try using my garmin bluetooth in a "side by side" kind of test to see whether it is tangogps or the gps radio.
Chris On Jul 21, 2008, at 12:02 AM, Russell Sears wrote: > I've had this problem when the initial fix was obtained while I'm > inside > a vehicle (such as a bus or car) or near a lot of metal. Going to a > complete stop, then moving a few times (in the car) seems to give the > chipset a better chance to realize it's got a bogus fix. > > -Rusty > > Yaroslav Halchenko wrote: >> Hi All, >> >> Finally I got to play with FR. Flushed todays (0721) dev image and >> kernel. >> Running TangoGPS. While WiFi is on (WEP encrypted. wpa_supplicant >> powered ;)) I am having location error (never hit the right spot) >> around >> 200-400m with reported speed from 0.5 to 20 km/h (while I am siting >> steadily in 1 place). >> >> When I turn WiFi Off (just on my FR, without touching access point >> or a >> laptop from which I am writing) -- location moves to the right spot >> with >> a bias of 10m or so. >> >> Therefore, the question: is that expected? ie that we can't rely on >> GPS >> readings while WiFi is on? Or from the other side: what is >> 'documented' precision in GPS readings while WiFi is enabled (and not >> actually very actively used, if used at all since I guess TangoGPS >> already had those tiles from OSM downloaded). >> >> Or may be it is just my FR which behaves that way? Did anyone observe >> any similar behavior? >> > > > _______________________________________________ > Openmoko community mailing list > community@lists.openmoko.org > http://lists.openmoko.org/mailman/listinfo/community _______________________________________________ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community