What provider are you seeing this from, GPS or network? In the case of
GPS its possible that there is a signal reflection which causes the
GPS signal to take longer that it should to reach your device and
therefore throwing off the position calculation.

Cheers,
Justin
Android Team @ Google

On Dec 17, 12:01 pm, Don Park <[email protected]> wrote:
> my android app that is a location listener gets fairly good data but
> once in a while the location jumps by a thousand miles or more and
> stays there for numerous updates with no corresponding major increase
> in the (in)accuracy reading.
>
> for example you can see that at 3:07 and 3:09  and 3:10 i was in
> portland oregon with less than 1024 meters of accuracy. at 3:48 i get
> consistent readings in the pacific ocean, with a supposed accuracy of
> less than 1024 meters in the first two readings.
>
> donpG1  2008-12-17 03:57:59 UTC         53.5545998811722        
> -135.155128240585
> 6144.0
> donpG1  2008-12-17 03:55:58 UTC         53.5575771331787        
> -135.154876112938
> 4096.0
> donpG1  2008-12-17 03:53:58 UTC         53.5582852363586        
> -135.15274643898
> 3072.0
> donpG1  2008-12-17 03:51:59 UTC         53.5593849420547        
> -135.15048801899
> 2048.0
> donpG1  2008-12-17 03:49:58 UTC         53.5648941993713        
> -135.139072537422
> 1024.0
> donpG1  2008-12-17 03:48:49 UTC         53.5753923654556        
> -135.129395127296
> 768.0
> donpG1  2008-12-17 03:10:36 UTC         45.5137449502945        
> -122.627688646317
> 512.0
> donpG1  2008-12-17 03:09:02 UTC         45.5137234926224        
> -122.627495527267
> 512.0
> donpG1  2008-12-17 03:07:01 UTC         45.5135464668274        
> -122.627694010735
> 1024.0
>
> whats odd is that the location is not a random reading but consistent
> readings in the same wildly inaccurate place. its almost like the G1
> starts playing a debugging kml file buried deep in the the GPS code.
>
> don
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