Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site umd5.UUCP Path: utzoo!decvax!genrad!mit-eddie!godot!harvard!seismo!umcp-cs!cvl!umd5!louie 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