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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. [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)
3. [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)
4. Re: [RFI] Mystery cyclic buzzing (score: 1): Author: Scott Yost <nm8rmedic@rocketmail.com>; Date: Fri, 13 Apr 2012 11:27:57 -0700 (PDT); John, Thanks for sharing your RFI situation and solution. I think we need to do exactly this, and thus build a knowledge base of RFI sources to help narrow down our searches. 73, Scott NM8R; /archives//html/RFI/2012-04/msg00035.html (7,319 bytes)
5. Re: [RFI] Mystery cyclic buzzing (score: 1): Author: Scott Yost <nm8rmedic@rocketmail.com>; Date: Fri, 13 Apr 2012 18:04:10 -0700 (PDT); Yikes. Did not mean to stir things up, gentlemen. I was under the impression that a list focused on RFI would be a good place to post and share practical RFI information, as John bravely did. For; /archives//html/RFI/2012-04/msg00039.html (9,579 bytes)
6. Re: [RFI] Line noise KUB Knoxville (score: 1): Author: Scott Yost <nm8rmedic@rocketmail.com>; Date: Sun, 15 Apr 2012 16:49:16 -0700 (PDT); Pat, My go-to tracking radio had always been a Pilot Pal portable. Link below: http://www.radiomuseum.org/r/novatech_pilot_pal.html The ferrite antenna rotated and could be easily employed to track; /archives//html/RFI/2012-04/msg00044.html (10,363 bytes)
7. Re: [RFI] 6 Minutes - a record? (score: 1): Author: Scott Yost <nm8rmedic@rocketmail.com>; Date: Sun, 27 May 2012 18:11:02 -0700 (PDT); Andy, Good info to know the about the battery charger's desulfating process. The reason behind the original exchange I had with Jerry (KI4IO)was to share with him that recently I had been toggling br; /archives//html/RFI/2012-05/msg00038.html (9,245 bytes)
8. Re: [RFI] Another strange noisy (score: 1): Author: Scott Yost <nm8rmedic@rocketmail.com>; Date: Fri, 1 Jun 2012 12:53:46 -0700 (PDT); CODAR is becoming the bane of SW listening. It's the IBOC of SW... ________________________________ From: KD7JYK DM09 <kd7jyk@earthlink.net> To: Paul K. <hglent@frii.com>; rfi@contesting.com Sent:; /archives//html/RFI/2012-06/msg00012.html (7,912 bytes)
9. Re: [RFI] Introduction - power line noise (score: 1): Author: Scott Yost <nm8rmedic@rocketmail.com>; Date: Sun, 24 Jun 2012 14:01:19 -0700 (PDT); N1BUG, I have a bit of experience grappling with power line interference. I can offer tips on use of the HFDF direction finder if you need to use HF to track it down, though I do note you have the M; /archives//html/RFI/2012-06/msg00034.html (8,919 bytes)
10. Re: [RFI] Review of the Midnight Sciences Ultrasonic Spark detector for RFI (score: 1): Author: Scott Yost <nm8rmedic@rocketmail.com>; Date: Sun, 24 Jun 2012 14:02:56 -0700 (PDT); And an excellent review I might add. I have considered one, both for power line RFI tracking and to explore the ultrasonic realm. Bet it's fun to use for the latter. You noted it was quite direction; /archives//html/RFI/2012-06/msg00035.html (8,301 bytes)
11. Re: [RFI] In house RFI, but (score: 1): Author: Scott Yost <nm8rmedic@rocketmail.com>; Date: Sun, 24 Jun 2012 20:28:47 -0700 (PDT); I used a National Radio HFDF direction finder coupled to my RF-2200 to track down an arcing junction box in my neighbor's home recently. The source was a junction that was twisted but had no wire nu; /archives//html/RFI/2012-06/msg00042.html (9,117 bytes)
12. [RFI] Sling Link RFI (score: 1): Author: Scott Yost <nm8rmedic@rocketmail.com>; Date: Wed, 11 Jul 2012 08:44:13 -0700 (PDT); Could use some advice on a whole-house AC filter to reduce RFI in the SW spectrum. Ive tracked down two RFI sources this summer. One was an arcing junction box connection in my neighbors home (we; /archives//html/RFI/2012-07/msg00039.html (8,108 bytes)
13. Re: [RFI] Sling Link RFI (score: 1): Author: Scott Yost <nm8rmedic@rocketmail.com>; Date: Wed, 11 Jul 2012 10:17:19 -0700 (PDT); Thanks for the reply. First, it is notched and avoids the amateur bands. That was one thing that made it so difficult to track down. I had to buy a portable HF loop setup and a decent portable rec; /archives//html/RFI/2012-07/msg00042.html (13,015 bytes)
14. Re: [RFI] Sling Link RFI (score: 1): Author: Scott Yost <nm8rmedic@rocketmail.com>; Date: Wed, 11 Jul 2012 10:22:38 -0700 (PDT); I think the wiring is an unintentional radiator. It is definitely part of the problem. I can follow the signal along every drop lead from the transformer, and at every home on the transformer, and; /archives//html/RFI/2012-07/msg00044.html (10,031 bytes)
15. [RFI] Sling Link RFI (score: 1): Author: Scott Yost <nm8rmedic@rocketmail.com>; Date: Wed, 11 Jul 2012 10:27:49 -0700 (PDT); The back of the unit states not to plug it into a power strip, I presume as they foresaw that reducing its signal strength. So I think a filter would be helpful, butI'm not sure I would ever be invi; /archives//html/RFI/2012-07/msg00045.html (7,954 bytes)
16. Re: [RFI] Sling Link RFI (score: 1): Author: Scott Yost <nm8rmedic@rocketmail.com>; Date: Wed, 11 Jul 2012 10:36:04 -0700 (PDT); Looks like it was Mr. Johnson who had the idea of offering a wifi setup. Good idea. (off topic: related to Kelly Johnson of P-38 design fame?) ________________________________ From: Kelly Johnson <; /archives//html/RFI/2012-07/msg00046.html (11,976 bytes)
17. [RFI] ISOBAR (score: 1): Author: Scott Yost <nm8rmedic@rocketmail.com>; Date: Sat, 15 Sep 2012 17:26:56 -0700 (PDT); Is Isobar still considered a decent product for RFI reduction or has it been eclipsed by some other manufacturer? The Isobar website seems thin on specs for noise suppresion data. Interested in spe; /archives//html/RFI/2012-09/msg00089.html (6,765 bytes)
18. Re: [RFI] RFI Audio Cuts... (score: 1): Author: Scott Yost <nm8rmedic@rocketmail.com>; Date: Tue, 23 Oct 2012 07:30:40 -0700 (PDT); Excellent idea. I will email you a file of a Sling ethernet-over-house wiring interference. Positively ID'ed. Scott NM8R ________________________________ From: Dave Cole <dave@nk7z.net> To: RFI Li; /archives//html/RFI/2012-10/msg00034.html (8,222 bytes)
19. Re: [RFI] Screenshots of a wideband short pulse (score: 1): Author: Scott Yost <nm8rmedic@rocketmail.com>; Date: Thu, 13 Dec 2012 18:49:07 -0800 (PST); And adding to K1TTT's advice, when you turn off your own home's breakers give circuits that feed televisions at least a full minute before ruling them out as a culprit, as super capacitors in some of; /archives//html/RFI/2012-12/msg00053.html (11,562 bytes)
20. [RFI] Radar Engineers RFI Analyzers (score: 1): Author: Scott Yost <nm8rmedic@rocketmail.com>; Date: Mon, 24 Dec 2012 11:20:45 -0800 (PST); Actually, there is a device which you MUST track by its noise signature the Sling Media Homeplug Ethernet device. It uses a homeowners house wiring and the wiring of every other home sharing the pow; /archives//html/RFI/2012-12/msg00120.html (9,185 bytes)

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