[OSM-talk] Good deal on Garmin GPS unit
Jon Stockill
lists at stockill.net
Thu Jul 6 09:59:28 BST 2006
Nick Black wrote:
> RE GSM/Sirf II - I stand corrected! I've emailed Sirf to see what they
> have to say about it, but it does seem to mean that the chips *can* be
> used with GSM signals. I don't think that this is A-GPS though.
ISTR there's a requirement in the USA for newer 3G phones to be able to
provide a position when an emergency call is made - this could be why
the manufacturers are pushing this chipset, since it actually has a
chance of being able to provide a fix while indoors. When used in this
way it's not unreasonable to assume that the GSM cell data will be used
to help with GPS positioning.
--
Jon Stockill
lists at stockill.net
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