Re: [OT] Finding people with GSM phones (was Re: GPS heads up )

[Mike Smith]

> > With one tower, you're down to describing an arc along which 
> > the phone is probably located; still pretty good when it comes to finding 
> > someone.
> 
> He seemed to imply that they could get it within 25m, even with one
> phone.  Like I said, I don't understand how, but I didn't question his
> ability.  Plus, he knows alot more about the stuff than I do.

Well, assuming they have 100% antenna overlap (not unlikely) you could 
just do phase comparisons between the antennae getting the squirt.  If 
these guys are as smart as you say (and I have no doubt at all about 
that), 25m at near distance is probably not unrealistic.  

Ask him if they can still do it at 35km out (the outer limit for a normal 
GSM cell).  That'd really spook me. 8)

-- 
\\ Give a man a fish, and you feed him for a day. \\  Mike Smith
\\ Tell him he should learn how to fish himself,  \\  [EMAIL PROTECTED]
\\ and he'll hate you for a lifetime.             \\  [EMAIL PROTECTED]




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