[FSO] Speed gps time to firxt fix up?
Michael 'Mickey' Lauer
mickey at openmoko.org
Fri Jan 16 14:23:16 CET 2009
Am Friday 16 January 2009 06:23:29 schrieb Marco Trevisan (Treviño):
> Daniel Willmann wrote:
> > It actually does have memory, but lacks a backup battery which is
> > supposed to power the memory of the GPS while main power is off.
> > ogpsd already stores and restores almanac, GPS/UTC timeoffset and
> > approximate last position. It's not restoring ephemeris because I had
> > weird problems with that (TTFF increased to several minutes).
> Thanks for the information. How much do you think we could decrease the
> TTFF off, by restoring the ephemeris (in the right way, I guess)?
> I've not tried recent versions of the Framework with the GPS, how long
> does it take generally to get the fix, nowadays?
Around a minute here -- with disable restoring (due to the bug). Last time we
enabled restoring in Taipei, we've seen TTFFs of 20-30s IIRC (Jan, Daniel?).
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