GPS

thomasg thomas at gstaedtner.net
Mon Jul 14 18:23:04 CEST 2008


On Mon, Jul 14, 2008 at 2:12 PM, Ken Young <rtm at cfa.harvard.edu> wrote:

> thomasg wrote:
>
> > This all are no arguments.
> > With my TomTom device I can do a full reset so that no GPS data is
> > available
> > at all (also no time and so on) and still get a fix in < 3 minutes at
> > 100 km/h.
> > Well, I know the freerunner is no specialized gps navigation device, but
> > the
> > fact that the signals are so weak that it's barely possible to get a fix
> > under optimal condition (clear view to the sky, antenna on top, without
> > moving 1 mm) shows, that this is no simple software problem and has to
> > be fixed.
>
> The GPS performance of my Freerunner is also much worse than
> the GPS performance of my neo1973.   I've done side-by-side tests of the
> two units many times.   My neo1973 gets a good fix in 2 to 3 minutes
> after a completely cold start; it's very reliable.   My Freerunner
> initially was getting a fix after 7 or 8 minutes.   For the last few
> days it has not been able to get a fix at all.
>
> Ken Young


I can confirm that, too.
The 1973 gets a cold start fix in less than 2 minutes.
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