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Author Re: When You Dial 911, Can Help Find You?
CharlesH

2005-05-22, 10:52 pm

Steve & Susan wrote:
> Even WITH GPS, there are severe limitations to cellular ALI. One that
> is consistantly ignored is the location of an iindividual inside a
> shopping mall or highrise building where there is attenuation of
> signal preventing the use of the GPS constellation. Or, for that
> matter a situation which requires a Z coordinate.

At www.snaptrack.com, they make fairly aggressive claims about how their
aGPS system will work in severe (for GPS) conditions (indoors /
basements / urban canyons). Do you feel that these claims are over-stated?
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