Re: Sending GPS almanach to Garmin GPS III+
From: Nacho (ncc1701zzz_at_hotmail.com)
Date: 11/30/04
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Date: Tue, 30 Nov 2004 10:31:12 +0100
I don't know if you can provide the almanach externally, in any case, i
doubt it is useful.
You could recude the cold-start time (because it is produced when you
don't have the alamach) but it is valid for months, so it is done very
rarely.
Warm start could be reduced a little but only if you provide a very
up-to-date almanach (of less than two hours more or less). If not, it is
useless and the GPS has to receive it.
In any case, the GPS does a great job receiving constantly the alamach
from the satellites and it is best not to interfiere with that.
Best regards.
Renzo wrote:
> Dear all,
>
> Trying to improve positioning performance of my Garmin GPS III+, I
> have considered an opportunity to provide the receiver with GPS
> almanach externally. This will definitely improve warming time, for
> both cold start and temporal loss of satellite lock (in city centre,
> for instance).
> I would very appreciate your advice in the matter of chosing the most
> appropriate way to send GPS almanac (collected from Internet, for
> instance) to GPS receiver.
>
> Best regards,
>
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