From: peter honeyman <honey@citi.umich.edu>
Date: Mon, 20 Jun 94 07:35:08 PDT
To: cypherpunks@toad.com
Subject: Re:  OJ`S CELL PHONE
Message-ID: <9406201435.AA17322@toad.com>
MIME-Version: 1.0
Content-Type: text/plain


a cellular phone that is turned on is in periodic contact with
the local antenna.  certainly the cellular provider knows what
cell a mobile phone is in; that's how calls are directed.  in
fact, anyone can monitor the paging channel to make a primitive
tracking device.  (some folks on this list know much more about
this ... perhaps they'll speak up.)

	peter