sears at cs.berkeley.edu
Sat Jul 12 07:56:00 CEST 2008
I played with it a bit more and think i figured out why i wasn't getting
locks quickly. It looks like my Freerunner's GPS is working after all! :)
I've updated the wiki GPS_Problems page with some basic information
about how GPS devices obtain initial locks, and added more
troubleshooting information... It would have saved me a few hours;
hopefully someone else will find it useful. Someone familiar with GPS
should probably check it for errors. Most of what I wrote is based on
things I learned today by word-of-mouth and skimming wikipedia articles.
Russell Sears wrote:
> This might help too (I should add myself to it...):
> I've only gotten a fix using the agps diagnostic tool gui. I did it in
> the middle of a clear night with nothing near by, by going to the signal
> strength screen, and slowly rotating the phone until the bars started
> turning from light blue to dark blue, and going with an orientation that
> seemed to work, kind of like with an old analog TV set...
> I don't know if doing it actually helped, but while playing this game, I
> got a fix in ~ 2-3 minutes, vs the tens of minutes I'd waited before that.
> Bumble, after 10-15 minutes of waiting, do you see any satellites in the
> "ss" tab of the agps diagnostic tool? Does it display a time in UTC
> after a few minutes? If so, we're probably in the same boat.
> Is there a document explaining the exact handshaking procedure the
> chipset in the freerunner uses to lock onto the satellites?
> andres wrote:
>> On Fri, 2008-07-11 at 23:57 +0200, Bumbl wrote:
>>> Be happy
>>> I have never got a fix up to now although trying on different locations
>>> for >45min each.
>>> I'll consider to use my waranty.
>> probably this is related
>> Openmoko community mailing list
>> community at lists.openmoko.org
> Openmoko community mailing list
> community at lists.openmoko.org
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