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 [email protected] http://lists.openmoko.org/mailman/listinfo/community
