To: | Jim W7RY <w7ry@centurytel.net> |
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Subject: | Re: NASA and braid was Re: [TowerTalk] There's 'ground', and thenthere's 'ground' |
From: | Gary Schafer <garyschafer@comcast.net> |
Reply-to: | garyschafer@comcast.net |
Date: | Mon, 17 Jan 2005 11:28:38 -0500 |
List-post: | <mailto:towertalk@contesting.com> |
Jim W7RY wrote: At Motorola the "R56 Site Standards and Guidelines for Communications Sites" strictly prohibits braid of any kind on a communications site. Mostly because of the noise it generates when it gets old and deteriorates. Each equipment rack has a RGB (Rack Ground Bar). Each piece of equipment in each rack is bonded to this bar. Each RGB is bonded back to the MGB with stranded jacketed #2 AWG wire in a single point ground fashion. Thank you Jim for the above reference. What I was talking about earlier as to not using a common buss bar for everything is associated with the above. Each rack has its own ground lead back to the single point ground (ground window). This is done for the reasons that I stated in earlier posts. 73 Gary K4FMX _______________________________________________ See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA. _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailman/listinfo/towertalk |
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