PSN-L Email List Message

Subject: Re: War-time GPS
From: "" earth@...........
Date: Mon, 24 Sep 2001 18:51:49 -0700

It has been common knowledge that GPS was off by 100 yards until last I
heard in 07/2000. I did hear that 'gummint was going to correct it because
other services were around (Russian etal)....but they may have changed those
setting...They can alter it "at will" ya know...There are many other ways to
sync XMT besides GPS and just as accurate.

----- Original Message -----
From: David Sarraf 

> The GPS time signal is used to synchronize transmissions of packets from
the base stations to the mobile phones.  This keeps the phone and base
station synchronized to minimize collisions with packets from other phones
using the same base or cell.  Proper time synchronization between bases is
important to avoid dropouts when handing off a phone from one base station
to another


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Larry Cochrane <cochrane@..............>