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Total 5 documents matching your query.

1. [RFI] PC keyboard RF immunity? (score: 1): Author: Fraser Robertson <F.G.Robertson@open.ac.uk> (Fraser Robertson); Date: Tue, 22 Dec 1998 17:28:35 -0000; Does anyone have any top tips on improving PC keyboard RF immunity? I get a problem on 7MHz with one particular antenna. Ferrites on the cable don't help. I'll probably re site the aerial to reduce t; /archives//html/RFI/1998-12/msg00000.html (6,903 bytes)
2. [RFI] PC keyboard RF immunity? (score: 1): Author: WX5L <wx5l@communique.net> (WX5L); Date: Tue, 22 Dec 1998 13:13:59 -0600; Not just any ferrite will choke rf at HF frequencies. The most efficient ferrite mixture for RF choking at ham frequencies is Mixture 73 and Mixture 77 follows. It may be worth a few bucks to get the; /archives//html/RFI/1998-12/msg00001.html (7,480 bytes)
3. Fwd: [RFI] PC keyboard RF immunity? (score: 1): Author: W2YR@aol.com (W2YR@aol.com); Date: Thu, 24 Dec 1998 16:01:02 EST; This is a multi-part message in MIME format. --part0_914533263_boundary Content-ID: <0_914533263@inet_out.mail.aol.com.1> Content-type: text/plain; charset=US-ASCII --part0_914533263_boundary Content; /archives//html/RFI/1998-12/msg00002.html (13,875 bytes)
4. [RFI] PC keyboard RF immunity? (score: 1): Author: W2YR@aol.com (W2YR@aol.com); Date: Fri, 25 Dec 1998 11:12:07 EST; Bud, I ran my FRC Newsletter" article through my scanner OCR and it picked up I/O as VO. Therefore all VO should be I/O My web site is: http://members.aol.com/w2yr/w2yr.htm 73 es Merry Christmas John; /archives//html/RFI/1998-12/msg00003.html (7,123 bytes)
5. [RFI] PC keyboard RF immunity? (score: 1): Author: Blackburn" <blackburn@qnet.com (Blackburn); Date: Fri, 25 Dec 1998 12:19:31 -0800; Just thought I'd add a little to W2YR's article. The purpose of adding ferrites is to put a common-mode impedance in series with the I/O wiring. Impedance is a function of frequency and the amount of; /archives//html/RFI/1998-12/msg00004.html (9,037 bytes)

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