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To: Clarksterh who wrote (13948)	7/18/2001 7:00:34 PM
From: 49thMIMOMander	Read Replies (1) \| Respond to of 34857

What about a heavenly signal which is bumped 100 meter sideways, multipath faded, into the depths of the building, underground, skyscraper, mall or metro?? Vertical pico-GPS accuracy for business?? (obvious business to set up GPS-phantom-repeaters outside the restaurant, kind of like WLAN an bluetooth??) Ilmarinen My point is just that in these tough situations other aid is anyway needed, the same aid which works anyway where GPS doesn't. Well, except being 0.5 mile off the lonely straight highway with only two marginal base stations within reach, but the ambulance can't drive there anyway, if it would, that road would lead somewhere and there would be a third base station there.

To: Clarksterh who wrote (13948)	7/19/2001 10:31:43 AM
From: LarsA	Read Replies (2) \| Respond to of 34857

Clark ""100m or 10m, who cares?" - is not what I wrote. The point was that any GPS (which I'm sure we will find in most cell phones for other reasons than emergency calls), not only Snaptrack, can give you 10 m or much better (less than 3m with WAAS). The beauty of Snaptrack is that you can get a fix in tough environments such as inside buildings, to some extent. But I don't understand why that has to be mandated. I mean if we really want to help victims to get an ambulance, we should build out or cell phone system in the U.S. faster to get decent coverage, so that we can call in the first place. It's incredible that we still still don't have good coverage near cities such as Washington DC, Tampa or Santa Barbara, to name a few.