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1. [RFI] ebay line filters (score: 1): Author: PY1NB - Felipe Ceglia <felipeceglia2@gmail.com>; Date: Mon, 15 Aug 2016 10:02:54 +0100; Hello, I need to buy some EMI line filters in te range of 3 to 10 amps. I found a plethora of them at Ebay, but none of those I found had tables or curves for how much they attenuate on the spectrum.; /archives//html/RFI/2016-08/msg00112.html (7,122 bytes)
2. Re: [RFI] ebay line filters (score: 1): Author: Dave Cole <dave@nk7z.net>; Date: Mon, 15 Aug 2016 04:41:21 -0700; How odd it is that you ask that, just yesterday I was looking at eBay for a line filter, and decided I needed more information. I located this: http://www.te.com/usa-en/products/emi-filters/power-li; /archives//html/RFI/2016-08/msg00113.html (7,336 bytes)
3. Re: [RFI] ebay line filters (score: 1): Author: Doug Powell <dougp01@gmail.com>; Date: Mon, 15 Aug 2016 07:49:10 -0600; One thing you should realize about line filters is they are optimized for conducted line emissions coming from the product where they are built in. This means the line / load labeling will determine; /archives//html/RFI/2016-08/msg00114.html (9,384 bytes)
4. Re: [RFI] ebay line filters (score: 1): Author: PY1NB - Felipe Ceglia <felipeceglia2@gmail.com>; Date: Mon, 15 Aug 2016 21:40:29 +0100; Hi Dave, Thank you for the link! 73, Felipe Felipe Ceglia - PY1NB -- PR1T team member /// Rio DX Group member /// Araucaria DX Group member http://dxwatch.com /// http://reversebeacon.net /// http://; /archives//html/RFI/2016-08/msg00115.html (8,661 bytes)
5. Re: [RFI] ebay line filters (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Mon, 15 Aug 2016 15:24:25 -0700; There's another MAJOR problem with commercial line filters -- most of the trash conducted from equipment is on the GREEN WIRE, which goes right past the filter. The specs for these filters CLAIM comm; /archives//html/RFI/2016-08/msg00116.html (8,817 bytes)
6. Re: [RFI] ebay line filters (score: 1): Author: Doug Powell <dougp01@gmail.com>; Date: Mon, 15 Aug 2016 17:26:28 -0600; Good points, It is indeed true that common mode noise is with reference to the green wire ground, but back at the measurement point and not the case of the filter. In the case if Mil Std filters this; /archives//html/RFI/2016-08/msg00117.html (9,590 bytes)
7. Re: [RFI] ebay line filters (score: 1): Author: Dave Cole <dave@nk7z.net>; Date: Mon, 15 Aug 2016 18:15:10 -0700; Felipe, You are most welcome! -- 73's, and thanks, Dave (NK7Z) For software/hardware reviews see: http://www.nk7z.net _______________________________________________ RFI mailing list RFI@contesting.c; /archives//html/RFI/2016-08/msg00118.html (7,607 bytes)
8. Re: [RFI] ebay line filters (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Mon, 15 Aug 2016 20:09:17 -0700; Hi Doug, You're talking about 1) properly built equipment and 2) measurements in a lab. The problem is that much (most?) equipment is NOT properly built -- the green wire SHOULD go to the shielding e; /archives//html/RFI/2016-08/msg00119.html (12,175 bytes)
9. Re: [RFI] ebay line filters (score: 1): Author: Doug Powell <dougp01@gmail.com>; Date: Mon, 15 Aug 2016 22:18:04 -0600; You made my points. In the end a commercial equipment manufacturers can only design and test to a standardized test setup. This is exactly what's described in CISPR 11, CISPR 22, ANSI/IEEE C63 and na; /archives//html/RFI/2016-08/msg00120.html (14,096 bytes)
10. Re: [RFI] ebay line filters (score: 1): Author: "KD7JYK DM09" <kd7jyk@earthlink.net>; Date: Mon, 15 Aug 2016 17:39:43 -0700; "One thing you should realize about line filters is they are optimized for conducted line emissions coming from the product where they are built in." That could explain some things. A few months ago; /archives//html/RFI/2016-08/msg00121.html (8,997 bytes)
11. Re: [RFI] ebay line filters (score: 1): Author: Doug Powell <dougp01@gmail.com>; Date: Mon, 15 Aug 2016 22:31:41 -0600; Line filters are primarily constructed of components that are simple inductors and capacitors. The main difference in the inductors is the core material is a low Q or lossy ferrite at certain frequen; /archives//html/RFI/2016-08/msg00123.html (10,046 bytes)
12. Re: [RFI] ebay line filters (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Mon, 15 Aug 2016 22:36:38 -0700; On Mon,8/15/2016 5:39 PM, KD7JYK DM09 wrote: The results were disastrous! Massive amounts of RFI blasted from every inch of the cord and most of the wiring in the shop where none had existed before r; /archives//html/RFI/2016-08/msg00126.html (9,433 bytes)
13. Re: [RFI] ebay line filters (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Mon, 15 Aug 2016 23:22:25 -0700; Hi Doug, See comments below. In the end a commercial equipment manufacturers can only design and test to a standardized test setup. This is exactly what's described in CISPR 11, CISPR 22, ANSI/IEEE C; /archives//html/RFI/2016-08/msg00127.html (12,661 bytes)
14. Re: [RFI] ebay line filters (score: 1): Author: PY1NB - Felipe Ceglia <felipeceglia2@gmail.com>; Date: Tue, 16 Aug 2016 22:47:54 +0100; Hi folks, Thank you for all the replies in this topic. I will order a few cheap line filters and try them out... 73 tu, Felipe Felipe Ceglia - PY1NB -- PR1T team member /// Rio DX Group member /// Ar; /archives//html/RFI/2016-08/msg00131.html (9,551 bytes)
15. Re: [RFI] ebay line filters (score: 1): Author: "KD7JYK DM09" <kd7jyk@earthlink.net>; Date: Tue, 16 Aug 2016 18:23:07 -0700; "standing waves. If you happen to have a fairly long cable, it is possible you can identify certain nodes and nulls along its length based of the 1/4 wavelength of the emission. If it is broadband RF; /archives//html/RFI/2016-08/msg00132.html (9,256 bytes)
16. Re: [RFI] ebay line filters (score: 1): Author: "KD7JYK DM09" <kd7jyk@earthlink.net>; Date: Tue, 16 Aug 2016 19:08:39 -0700; The odd part is, to me, anyway, the noise was extremely limited until I added the filters. No filter, little noise, filter at the source, major noise on the previously quiet wiring. At that time I d; /archives//html/RFI/2016-08/msg00133.html (9,377 bytes)

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