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Total 20 documents matching your query.

1. [RFI] Quiet Shack PC Systems? (score: 1): Author: "Deni" <deni1@tiscali.fr>; Date: Thu, 18 Mar 2004 10:16:41 +0100; I'm always intrigued by the photos of other peoples shacks with the PC and monitor mounted right in among the radio gear. I have a conventional tower and CRT monitor which creates nasty QRM in my HF; /archives//html/RFI/2004-03/msg00065.html (6,526 bytes)
2. Re: [RFI] Quiet Shack PC Systems? (score: 1): Author: "Tom Rauch" <w8ji@contesting.com>; Date: Thu, 18 Mar 2004 04:58:20 -0500; Deni, Every cable and wire in my shack, including power lines, enter through a bulk-head feedthrough plate. All of my cable shield connections are good. All of my antenna are at least a few hundered; /archives//html/RFI/2004-03/msg00066.html (7,452 bytes)
3. Re: [RFI] Quiet Shack PC Systems? (score: 1): Author: "Deni" <deni1@tiscali.fr>; Date: Thu, 18 Mar 2004 12:34:45 +0100; Hi Tom, well my shack/ antenna layout is less than ideal at present, but I do know all of my cable screens are good. I am in the process of setting up in a new location so still thinking about antenn; /archives//html/RFI/2004-03/msg00068.html (8,774 bytes)
4. RE: [RFI] Quiet Shack PC Systems? (score: 1): Author: "EDWARDS, EDDIE J" <eedwards@oppd.com>; Date: Thu, 18 Mar 2004 10:33:30 -0600; When I purchased my PC, I took a portable SW rcvr along and shut down all nearby CRTs and listened to each of the CRTs I was looking at. Then I bought the quietest one. It so happens that the quiet o; /archives//html/RFI/2004-03/msg00069.html (8,760 bytes)
5. Re: [RFI] Quiet Shack PC Systems? (score: 1): Author: <dgsvetan@rockwellcollins.com>; Date: Thu, 18 Mar 2004 10:37:19 -0600; Deni, The fact remains that you could spend a lot of time applying ferrites and by-pass caps, as well as line filters, to many computers and related gadgets, and still have moderate to severe RFI to; /archives//html/RFI/2004-03/msg00070.html (14,226 bytes)
6. RE: [RFI] Quiet Shack PC Systems? (score: 1): Author: "N6KJ" <kelly@thejohnsons.ws>; Date: Thu, 18 Mar 2004 08:41:00 -0800 (PST); My CRT is generates birdies all over the place (esp. on 17 meters). It's a 21" CRT that I got for free so I don't want to get rid of it. Unfortunately, it's very difficult to wind the video cable aro; /archives//html/RFI/2004-03/msg00071.html (10,123 bytes)
7. Re: [RFI] Quiet Shack PC Systems? (score: 1): Author: "David Hachadorian" <K6LL@adelphia.net>; Date: Thu, 18 Mar 2004 10:55:37 -0700; locations I have never been Noise rejection on balanced line feeders is nowhere near the level achievable with coaxial cable. My first recommendation would be to switch all antennas to coax, and keep; /archives//html/RFI/2004-03/msg00074.html (8,264 bytes)
8. Re: [RFI] Quiet Shack PC Systems? (score: 1): Author: WA2BPE <wa2bpe@infoblvd.net>; Date: Thu, 18 Mar 2004 12:56:14 -0500; It doesn't (all) specifically apply to laptops, but here goes anyways.... It is essential that the PC itself be "bottled up" - make sure all the case edges are really in contact. In this regard, I bu; /archives//html/RFI/2004-03/msg00075.html (9,848 bytes)
9. Re: [RFI] Quiet Shack PC Systems? (score: 1): Author: "Bob Tellefsen" <n6wg@comcast.net>; Date: Thu, 18 Mar 2004 10:09:49 -0800; Deny I have the same problem with my two laptops. I went to my favorite ham flea market/swap meet and looked for older analog power supplies that plug into the wall. Over here we call them "wall wart; /archives//html/RFI/2004-03/msg00076.html (8,101 bytes)
10. Re: [RFI] Quiet Shack PC Systems? (score: 1): Author: "Bob Tellefsen" <n6wg@comcast.net>; Date: Thu, 18 Mar 2004 10:22:55 -0800; Now I'm curious. If ferrites are hard to apply, would wrapping the cable in aluminum foil and grounding it at one end to the shack ground provide any protection? Seems like a cheap experiment. 73, Bo; /archives//html/RFI/2004-03/msg00077.html (7,721 bytes)
11. Re: [RFI] Quiet Shack PC Systems? (score: 1): Author: "Ian White, G3SEK" <G3SEK@ifwtech.co.uk>; Date: Thu, 18 Mar 2004 21:40:58 +0000; Deni wrote: I'm always intrigued by the photos of other peoples shacks with the PC and monitor mounted right in among the radio gear. I have a conventional tower and CRT monitor which creates nasty Q; /archives//html/RFI/2004-03/msg00082.html (10,437 bytes)
12. Re: [RFI] Quiet Shack PC Systems? (score: 1): Author: Alan Robinson <robinsah@engr.orst.edu>; Date: Thu, 18 Mar 2004 22:19:12 -0800; I am using a VewSonic G790 (19 inch conventional monitor). It does NOT cause any noticeable RFI to my Icom 756 Pro, which sits right next to it. 73, Alan, W4LKE ______________________________________; /archives//html/RFI/2004-03/msg00083.html (7,806 bytes)
13. Re: [RFI] Quiet Shack PC Systems? (score: 1): Author: "Deni" <deni1@tiscali.fr>; Date: Mon, 22 Mar 2004 07:44:36 +0100; Hi Dale, and all who have given advice and comments, many thanks. One thing is clear I am not alone with this nuisance and my experiences are in line with others. I agree, having tried ferrites on nu; /archives//html/RFI/2004-03/msg00084.html (10,310 bytes)
14. Re: [RFI] Quiet Shack PC Systems? (score: 1): Author: "Jim Brown" <jimbrown.enteract@rcn.com>; Date: Thu, 25 Mar 2004 23:00:35 -0600; One footnote to your excellent advice, Dale. If I'm not mistaken, CE compliance is written around the EN55103-1 and -2. The emissions standard is mandatory, however the susceptibility standard is ess; /archives//html/RFI/2004-03/msg00119.html (9,910 bytes)
15. Re: [RFI] Quiet Shack PC Systems? (score: 1): Author: "Jim Brown" <jimbrown.enteract@rcn.com>; Date: Thu, 25 Mar 2004 23:24:11 -0600; Hmmm. Are you putting a choke on the ground lead? Doesn't that prevent the protection it SHOULD provide for HF transients like lightning and power line misbehavior? I can't imagine that being blessed; /archives//html/RFI/2004-03/msg00120.html (9,300 bytes)
16. Re: [RFI] Quiet Shack PC Systems? (score: 1): Author: "Ian White, G3SEK" <G3SEK@ifwtech.co.uk>; Date: Fri, 26 Mar 2004 09:19:13 +0000; Jim Brown wrote: If I'm not mistaken, CE compliance is written around the EN55103-1 and -2. The emissions standard is mandatory, however the susceptibility standard is essentially voluntary, since it; /archives//html/RFI/2004-03/msg00121.html (10,732 bytes)
17. Re: [RFI] Quiet Shack PC Systems? (score: 1): Author: "Ian White, G3SEK" <G3SEK@ifwtech.co.uk>; Date: Fri, 26 Mar 2004 12:02:10 +0000; Jim Brown wrote: On Thu, 18 Mar 2004 21:40:58 +0000, Ian White, G3SEK wrote: Then feed each side separately through its own *three-wire* mains filter that includes a ground choke. Hmmm. Are you putti; /archives//html/RFI/2004-03/msg00122.html (12,348 bytes)
18. Re: [RFI] Quiet Shack PC Systems? (score: 1): Author: "Tom Rauch" <w8ji@contesting.com>; Date: Fri, 26 Mar 2004 17:45:58 -0500; Unless I'm not following something, I don't know why that would be true. I don't isolate or choke the ground leads outside equipment and would never do that. I bond the safety ground of all power ma; /archives//html/RFI/2004-03/msg00125.html (11,322 bytes)
19. Re: [RFI] Quiet Shack PC Systems? (score: 1): Author: "Ian White, G3SEK" <G3SEK@ifwtech.co.uk>; Date: Sat, 27 Mar 2004 16:32:21 +0000; Tom Rauch wrote: But from the lightning and RFI viewpoints, it is highly *un*desirable to cross-connect the mains and RF grounds at the shack. If you do, you are creating an alternative pathway for l; /archives//html/RFI/2004-03/msg00143.html (13,097 bytes)
20. Re: [RFI] Quiet Shack PC Systems? (score: 1): Author: "Tom Rauch" <w8ji@contesting.com>; Date: Sat, 27 Mar 2004 13:32:36 -0500; I have zero problems with RF in the shack because my antennas are fed correctly and are a reasonable distance away. RF in the shack does not come from bad shack grounds, it comes from poor antenna f; /archives//html/RFI/2004-03/msg00147.html (11,579 bytes)

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