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21. Re: [RFI] Update on the Boston area RFI (score: 1): Author: "Alan Robinson" <robinsah@engr.orst.edu>; Date: Sat, 13 Feb 2010 12:53:25 -0800; A couple of thoughts............ The fact that the noise (RFI) goes away after a storm would indicate an outside source on the power line. It also means that the source is not inside an arrester. So; /archives//html/RFI/2010-02/msg00070.html (10,452 bytes)
22. Re: [RFI] Sears battery charger model #200.71222 (score: 1): Author: "Alan Robinson" <robinsah@engr.orst.edu>; Date: Fri, 9 Apr 2010 18:33:42 -0700; This is so TRUE. At our house our GE washer and Panasonic 50 inch plasma TV are incredible RFI generators. So far, fingers crossed, I don't hear the neighbors equipment. But that may be coming.......; /archives//html/RFI/2010-04/msg00018.html (8,622 bytes)
23. Re: [RFI] Does a power pole generating RFI always generate ultrasonics? (score: 1): Author: "Alan Robinson" <robinsah@engr.orst.edu>; Date: Mon, 7 Jun 2010 21:52:47 -0700; Hi Stu, The only sources I have found that had NO audio signal were lightning arresters. As other folks have pointed out, you need a "line of sight" to the source to "hear" it. Sometimes you have to; /archives//html/RFI/2010-06/msg00016.html (9,607 bytes)
24. [RFI] Electric Dog Fences - What to Buy? (score: 1): Author: "Alan Robinson" <robinsah@engr.orst.edu>; Date: Mon, 8 Nov 2010 11:16:45 -0800; Hi, We have some new neighbors that just moved in next door. They want to install an Electric Dog Fence, the underground type, in their back yard. Does anyone know of a brand that I could recommend t; /archives//html/RFI/2010-11/msg00044.html (6,782 bytes)
25. Re: [RFI] FW: Topband: Exciting noise sources (Tim Duffy K3LR) (score: 1): Author: "Alan Robinson" <robinsah@engr.orst.edu>; Date: Tue, 29 Mar 2011 13:13:51 -0700; Hi Frank, Thank you for writing such a great email. You have been so helpful that I hesitate to add anything, but here are a few comments for this reflector (I am sure you know this info). I use the; /archives//html/RFI/2011-03/msg00136.html (11,666 bytes)
26. Re: [RFI] RFI free UPS (score: 1): Author: "Alan Robinson" <robinsah@engr.orst.edu>; Date: Tue, 28 Jun 2011 14:15:43 -0700; I have four APC units three feet from my Icom 756 Pro. No noise. 73, Alan, W4LKE -- Original Message -- From: Dan Atchison To: rfi@contesting.com Sent: Tuesday, June 28, 2011 12:28 PM Subject: [RFI]; /archives//html/RFI/2011-06/msg00027.html (7,589 bytes)
27. Re: [RFI] Original message and replying (score: 1): Author: "Alan Robinson" <robinsah@engr.orst.edu>; Date: Fri, 20 Jan 2012 09:52:59 -0800; I agree with David. I don't always get the original email. So please do leave enough of the original, or response, so that the reply makes sense. Thanks, Some of us get 60 and more a day and removing; /archives//html/RFI/2012-01/msg00079.html (7,516 bytes)
28. Re: [RFI] A new noise (score: 1): Author: "Alan Robinson" <robinsah@engr.orst.edu>; Date: Sun, 26 Aug 2012 12:48:05 -0700; If you don't want to build the loop yourself, take a look at National RF's HFDF Vector-Gun. They now have a loop that covers 80M. I have found it to be very useful. http://www.nationalrf.com/type_hfd; /archives//html/RFI/2012-08/msg00110.html (7,741 bytes)
29. [RFI] Fw: Street Light RFI (score: 1): Author: "Alan Robinson" <robinsah@engr.orst.edu>; Date: Wed, 31 Oct 2012 13:10:54 -0700; Here is a story about success with National RF's 80m HFDF Loop in locating RFI. In addition to being the local utility intereference locator, Stuart is a licensed ham. Alan, W4LKE Hi Alan, It was nic; /archives//html/RFI/2012-10/msg00049.html (7,447 bytes)
30. Re: [RFI] Radar Engineers RFI Analyzers (score: 1): Author: "Alan Robinson" <robinsah@engr.orst.edu>; Date: Mon, 24 Dec 2012 22:21:58 -0800; Hi Jim, I use a Tek scope, AC powered in my car for showing power line sparking patterns. I use an Astron Model Pi-250W Inverter to power the scope. It runs off the cigarette lighter socket (a 12 V p; /archives//html/RFI/2012-12/msg00124.html (8,980 bytes)
31. Re: [RFI] Radar Engineers RFI Analyzers (score: 1): Author: "Alan Robinson" <robinsah@engr.orst.edu>; Date: Tue, 25 Dec 2012 00:12:20 -0800; I have not detected any RFI from the inverter. I use a Radar Engineer's Model 240A for a receiver. My car's engine, an Avalon, is a bigger problem. I use my Tek scope, a TDS 210, to get a larger disp; /archives//html/RFI/2012-12/msg00126.html (8,964 bytes)
32. Re: [RFI] Radar Engineers RFI Analyzers (score: 1): Author: "Alan Robinson" <robinsah@engr.orst.edu>; Date: Tue, 25 Dec 2012 12:39:34 -0800; Hi Charlie, Yes, essentially the same picture, only larger and printable. Also, you have more control over what to show. My scope is a Tek TDS-210; now out of production, but I am sure the new ones w; /archives//html/RFI/2012-12/msg00130.html (11,132 bytes)
33. Re: [RFI] Radar Engineers RFI Analyzers - Tek Scope Data (score: 1): Author: "Alan Robinson" <robinsah@engr.orst.edu>; Date: Tue, 25 Dec 2012 12:54:02 -0800; Link to data sheet: http://www.tek.com/document/fact-sheet/tds-210-tds-220-fact-sheet Link to user manual: Alan, (CC'd to the list) Are the spikes displayed on your 'scope very *narrow* like those di; /archives//html/RFI/2012-12/msg00131.html (10,953 bytes)
34. Re: [RFI] Radar Engineers RFI Analyzers - Scope Pictures of RFI (score: 1): Author: "Alan Robinson" <robinsah@engr.orst.edu>; Date: Tue, 25 Dec 2012 13:35:12 -0800; Hi Charlie, Attached is a JPEG file showing two scope pictures of RFI. The top picture is using my home receiver. The bottom picture is at the offending utility pole. When this pole was repaired the; /archives//html/RFI/2012-12/msg00133.html (8,869 bytes)
35. Re: [RFI] Shielding a ground wire (score: 1): Author: "Alan Robinson" <robinsah@engr.orst.edu>; Date: Sun, 28 Apr 2013 15:18:07 -0700; change the "publish/htm" to "publish.htm". That is "/" to "." I catch a 404 on this page. - 73 de Mike N3LI - _______________________________________________ RFI mailing list RFI@contesting.com http:; /archives//html/RFI/2013-04/msg00083.html (9,663 bytes)

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