To: | Chris Hoelzle <choelzle@cox.net>, TowerTalk@contesting.com |
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Subject: | Re: [TowerTalk] Screened walls and floors |
From: | Grant Saviers <grants2@pacbell.net> |
Date: | Mon, 5 Dec 2016 08:55:40 -0800 |
List-post: | <towertalk@contesting.com">mailto:towertalk@contesting.com> |
We built a Faraday cage big enough for an engineer and equipment and
learned that a special screen material is needed. Regular copper
screening has lots of crossovers that aren't really connected or worse
are oxidized contacts and can make the noise worse. A tech was assigned
to solder the wires in strips every 4 inches x,y,z, which took a couple
of days and made for a very unhappy tech. The results were ugly but RF ok.
I don't see a benefit for a station. IMO, it's a better use of time to concentrate on a good building perimeter ground, the entry plate, good chokes, and insuring no RFI sources from equipment inside the building. A interesting reference http://www.yccc.org/Articles/W1HIS/CommonModeChokesW1HIS2006Apr06.pdf plus the choke studies by K9YC. Grant KZ1W On 12/4/2016 22:56 PM, Chris Hoelzle wrote: Hello AllI have an opportunity to do some extra work on my new ham room that will be in a large cement floor shop building well away from my home and neighbors.I am wondering if anyone has gone to the effort of screening the walls and floors for noise reduction.I have a room that I believe will be quiet, but I want to do the very best job possible as long as I am at it.Ideas. please?NN6CH Chris Hoelzle choelzle@cox.net Laguna Niguel, CA _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailman/listinfo/towertalk _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailman/listinfo/towertalk |
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