GPS

[Kai Römer]

I can affirm this for 6 opemoko devices. i guess its an internal
antenna issue. as soon as you connect a external antenna to it works
like a charm. but fur me thats no solution.

TTFF with external antenna (perfect condition): 40 to 60 seconds
TTFF with internal antenna AGPS (perfect condition): more than 1:20
minute but not always. its like gambling.

I guess a miss design of the internal antenna.

CU Kai



2008/6/23 Peter Kraker <peter.kraker at volja.net>:
> This timings are insane unless you don't even have a valid almanac, which is
> rare. This doesn't look right.
>
> Yorick Matthys pravi:
>
> Marcus Bauer said:
>
>
> My experience with the Freerunner is ~12 minutes TTFF (time to first
> fix) without use of agps and ~4-8 minutes TTFF with agps from
> agps.u-blox.com using the software from openmoko.
>
> The Neo1973 (GTA01) had a TTFF without agps assistance of ~2 min.
>
>
> 12 minutes without AGPS and 4-8min with AGPS??
> I hope there was a thunderstorm inside the basement where you tested this...
> :)
>
> Seriously, these just don't seem realistic.
> Compare them for example with some other devices from 2003:
> http://www.pocketgpsworld.com/ttffcomparisons.php.
> Or from ublox: http://www.u-blox.com/technology/assistnow/ (table at the
> bottom of the page)
>
> Surely there must be something wrong with your
> software/settings/hardware/environment...
> (or maybe they still have a lot of work to do on the GPS :))
>
> y
>
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