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1. [RFI] Frequency-Specific Interference (score: 1): Author: Scott Yost <nm8rmedic@rocketmail.com>; Date: Mon, 27 Feb 2012 17:09:47 -0800 (PST); I would like to throw out an RFI matter for the group to ponder. I have had an arc-type inference for almost 2 years, that has defied solution. It is repetitive at approximately a 2 second interval; /archives//html/RFI/2012-02/msg00026.html (10,218 bytes)
2. Re: [RFI] Frequency-Specific Interference (score: 1): Author: "KD7JYK DM09" <kd7jyk@earthlink.net>; Date: Mon, 27 Feb 2012 17:31:49 -0800; By description it sounds like something I heard in the winter of 2004. You wouldn't believe what that was... Before I comment, I'd like to hear what you hear. Can you provide a 30 second recording? S; /archives//html/RFI/2012-02/msg00027.html (6,827 bytes)
3. [RFI] Frequency-Specific Interference (score: 1): Author: Scott Yost <nm8rmedic@rocketmail.com>; Date: Tue, 28 Feb 2012 06:27:50 -0800 (PST); ________________________________ Kurt, I sent an audio clip to you via direct email. If anyone else would like it for review, email me. Sorry about the formatting of my original post. I'm not sure; /archives//html/RFI/2012-02/msg00029.html (7,401 bytes)
4. Re: [RFI] Frequency-Specific Interference (score: 1): Author: "Tim Duffy K3LR" <k3lr@k3lr.com>; Date: Tue, 28 Feb 2012 12:44:47 -0600; Hello Scott: Posts to these reflectors in HTML will have line breaks. Send future posts in Plain Text - no line breaks will appear. 73, Tim K3LR RFI reflector originator/ moderator --Original Message; /archives//html/RFI/2012-02/msg00032.html (8,535 bytes)
5. Re: [RFI] Frequency-Specific Interference (score: 1): Author: "KD7JYK DM09" <kd7jyk@earthlink.net>; Date: Tue, 28 Feb 2012 10:49:49 -0800; I got the recording, not like what I heard in 2004. It DOES kind of sound like an electric fence, but more like a light coming on, then failing and shutting down. I have heard near identical sounds t; /archives//html/RFI/2012-02/msg00033.html (8,105 bytes)
6. Re: [RFI] Frequency-Specific Interference (score: 1): Author: "KD7JYK DM09" <kd7jyk@earthlink.net>; Date: Tue, 28 Feb 2012 11:29:04 -0800; Back in 2004 I ran a beacon, RPG, on 13,555.430 KHz. It genrated a bit of broadband hash from the Epson oscillator so I would shut it down when I wanted to monitor HF. Sometime around December of 200; /archives//html/RFI/2012-02/msg00034.html (10,198 bytes)
7. Re: [RFI] Frequency-Specific Interference (score: 1): Author: Eddy Swynar <deswynar@xplornet.ca>; Date: Tue, 28 Feb 2012 15:02:54 -0500; Hi Kurt, "...Whereupn two well-groomed men dressed completely in back (crisp black suits, black ties) will appear shortly thereafter, driving a large black Lincoln automobile..." : >) ~73!~ de Eddy V; /archives//html/RFI/2012-02/msg00035.html (8,446 bytes)
8. Re: [RFI] Frequency-Specific Interference (score: 1): Author: "KD7JYK DM09" <kd7jyk@earthlink.net>; Date: Tue, 28 Feb 2012 12:24:04 -0800; "...Whereupon two well-groomed men dressed completely in back (crisp black suits, black ties) will appear shortly thereafter, driving a large black Lincoln automobile..." : >) Boy, will they be surpr; /archives//html/RFI/2012-02/msg00036.html (8,226 bytes)
9. Re: [RFI] Frequency-Specific Interference (score: 1): Author: "Frank N. Haas KB4T" <utility.rfi.pro@gmail.com>; Date: Tue, 28 Feb 2012 23:21:18 -0500; All this speculation is a huge waste of time and is irrelevant. There is only one way to find this particular interference: Get the right tools for the job and DF it like any other RF signal. It is f; /archives//html/RFI/2012-02/msg00037.html (11,308 bytes)
10. Re: [RFI] Frequency-Specific Interference (score: 1): Author: "KD7JYK DM09" <kd7jyk@earthlink.net>; Date: Tue, 28 Feb 2012 21:02:10 -0800; Not really... A bad ballast doesn't sound like an electric fence, which doesn't sound like loose hardware, which doesn't sound like RFI from a computer, which doesn't sound like noise from a switchi; /archives//html/RFI/2012-02/msg00038.html (9,002 bytes)
11. Re: [RFI] Frequency-Specific Interference (score: 1): Author: Hisashi T Fujinaka <htodd@twofifty.com>; Date: Tue, 28 Feb 2012 22:11:49 -0800 (PST); Also, loop antennas are pretty well known. It wouldn't be hard to create a loop tuned at a specific frequency. Use it with a receiver and you can have a very directional null. -- Hisashi T Fujinaka -; /archives//html/RFI/2012-02/msg00039.html (9,699 bytes)
12. Re: [RFI] Frequency-Specific Interference (score: 1): Author: "KD7JYK DM09" <kd7jyk@earthlink.net>; Date: Wed, 29 Feb 2012 09:51:04 -0800; Of all things, I do NOT have a loop, nor have I ever played with one. It IS on my list of things to try, especially for tracking down 11m Class C Telemetry signals, my main interest. Currently I use; /archives//html/RFI/2012-02/msg00041.html (9,655 bytes)
13. [RFI] Frequency-Specific Interference (score: 1): Author: Scott Yost <nm8rmedic@rocketmail.com>; Date: Wed, 29 Feb 2012 11:55:43 -0800 (PST); Gentlemen: One hope I had for my post has possibly been answered - a source for an HF DF setup. I did not know about the National HFDF system. A call is in to National regarding ordering a unit,; /archives//html/RFI/2012-02/msg00042.html (9,070 bytes)
14. Re: [RFI] Frequency-Specific Interference (score: 1): Author: "KD7JYK DM09" <kd7jyk@earthlink.net>; Date: Wed, 29 Feb 2012 12:16:50 -0800; "What kind of device makes an arc-like noise, yet is so defined in its spectrum? And the fact that it avoids the amateur bands seems like a clue in this age (hopefully waning) of BPL." You can hear t; /archives//html/RFI/2012-02/msg00043.html (9,251 bytes)

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