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From: louie@umd5.UUCP
Newsgroups: net.ham-radio
Subject: Re: RF Grounding and Shielding
Message-ID: <284@umd5.UUCP>
Date: Sun, 30-Dec-84 11:30:29 EST
Article-I.D.: umd5.284
Posted: Sun Dec 30 11:30:29 1984
Date-Received: Mon, 31-Dec-84 00:22:24 EST
References: <690@clyde.UUCP>
Reply-To: louie@umd5.UUCP (Louis Mamakos)
Distribution: na
Organization: U of Md, CSC, College Park, Md
Lines: 29
Keywords: Sperry Univac
Summary: 

In article <690@clyde.UUCP> lda@clyde.UUCP (Larry Auton) writes:
>My brother wants me to find out about RF Grounding and Shielding.
>He saw (or heard about) a way to achieve excellent grounding by
>anchoring a long flat sheet of copper (20 ft. by 6 in.) to a concrete
>floor, and using it as the ground.  He wants the nitty-gritty details.
>
>He mentioned a Sperry-Rand publication called "Facility Planning" as a
>possible reference, but he didn't know where to look for something like
>that.  My brother doesn't mind digging for himself, so names of books
>or other publications and their sources would be useful, too.

The publication you mentioned is a facility planning and installation guide
for Sperry's 1100 Series of mainframe computer systems.  You'd probably want
to find one for their 1100/80 or 1100/90 mainframe.  The idea is that all of
the equipment cabinets are grounded to this system of copper sheets, which
give you a low impedence ground between the components.

I don't know if you can get one of these out of Sperry or not;  most of it
deals with the mechanics of installing the ground grid, and not the theory.
I can briefly summarize the installation procedure if you like, having 
installed 4 or 5 of these suckers.
-- 

Louis A. Mamakos  WA3YMH
Computer Science Center - Systems Programming
University of Maryland, College Park

Internet: louie@umd5.arpa
UUCP: ..!seismo!cvl!umd5!louie