lda@clyde.UUCP (Larry Auton) (12/29/84)
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. This topic may be too broad, so he threw out a couple of terms that may (to some of you) narrow the scope so that it can be answered quickly. Common Mode Current Loop Copper Mass Sheeting I don't know much about grounding or about ham radio, but I'll forward whatever you tell me to him. -- Larry D. Auton AT&T Bell Laboratories, Whippany Rd., Whippany, NJ 07981 Room 2C-123 (201)386-4272 ihnp4!clyde!lda
louie@umd5.UUCP (12/30/84)
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