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Article #19633

To build a cheap RF location tracker?

#19633
From: Joseph Weinstein
Date: Wed, 31 Aug 1988 23:47
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Hi.  I have an need for a position tracking device, for an
area no bigger than 1/4 mile x 1/4 mile. I imagine a triangulated
set of receivers and one sender moving in the immediate area.
I'd like to be able to plot the position of the sender to within
1 foot, every tenth of a second. How easily can this be done? 
I expect to know the relative positions of the receivers very
accurately so that in principal, the distance from the sender
to each receiver would be all that was necessary. Can a reasonable
receiver differentiate between signal strengths sufficiently to
cover a range from 10 ft. to 1500 ft. to within a foot? And with
legal private radio signal strengths? thanx.
-- 
Joseph Weinstein					Sybase, Inc.
                      					6475 Christie Avenue
              						Emeryville, Ca  94608
{pyramid,pacbell,sun,mtxinu,capmkt}!sybase!joe		415-596-3620
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!water!watmath!clyde!att!pacbell!hoptoad!unisoft!mtxinu!sybase!joe
From: joe@sybase.sybase.com (Joseph Weinstein)
Newsgroups: sci.electronics
Subject: To build a cheap RF location tracker?
Message-ID: <831@sybase.sybase.com>
Date: 31 Aug 88 23:47:05 GMT
Reply-To: joe@sybase.UUCP (Joseph Weinstein)
Organization: Sybase, Inc.
Lines: 17