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Total 8 documents matching your query.

1. [RFI] RFI all over the band (score: 1): Author: "Ramakrishnan Muthukrishnan" <vu3rdd@gmail.com>; Date: Sat, 30 Sep 2006 21:39:12 +0530; Hi, I am Ramakrishnan, VU3RDD from Bangalore, India. For the past two months, I am experiencing unprecedented amount of RFI all over the amateur radio bands 40m, 20m till 10m at S9+10db level. I have; /archives//html/RFI/2006-09/msg00045.html (8,099 bytes)
2. Re: [RFI] RFI all over the band (score: 1): Author: "David Robbins K1TTT" <k1ttt@arrl.net>; Date: Sun, 1 Oct 2006 11:42:02 -0000; Power line noise that comes and goes with rain is likely caused by bad insulators. When the insulator is dry it is arcing and making noise, when it gets wet the water fills the gap and current flows; /archives//html/RFI/2006-10/msg00000.html (9,939 bytes)
3. Re: [RFI] RFI all over the band (score: 1): Author: "Ramakrishnan Muthukrishnan" <vu3rdd@gmail.com>; Date: Mon, 2 Oct 2006 00:23:03 +0530; Thanks David for the comments. I am thinking of contacting them after zeroing in on the erring pole. I think I am quite close to it. The issue is quite complex here in this part of the world. There a; /archives//html/RFI/2006-10/msg00001.html (12,386 bytes)
4. Re: [RFI] RFI all over the band (score: 1): Author: "Morse, Earl (E.A.)" <emorse@ford.com>; Date: Mon, 2 Oct 2006 09:55:36 -0400; Most definitely a power line noise and one that is exposed to rain too. One technique that you can use to home in on the source is to use your AM radio and start with a clear frequency as high up in; /archives//html/RFI/2006-10/msg00003.html (9,975 bytes)
5. Re: [RFI] RFI all over the band (score: 1): Author: Dave NØRQ <n0rq-lists@sbcglobal.net>; Date: Mon, 2 Oct 2006 09:03:00 -0500; A handheld AM broadcast band radio can be a useful tool, but a VHF and/or UHF radio in mode AM with a handheld Yagi is invaluable in finding offending power line hardware. I feel for you, Ramakrishna; /archives//html/RFI/2006-10/msg00004.html (7,316 bytes)
6. Re: [RFI] RFI all over the band (score: 1): Author: "Ramakrishnan Muthukrishnan" <vu3rdd@gmail.com>; Date: Mon, 2 Oct 2006 23:27:02 +0530; Hi Dave, I do not have a HT with AM mode, perhaps I will try to borrow one. But again I do not have a yagi too. May be this is the time to build those tools. Thanks. Nice webpage. I am downloading so; /archives//html/RFI/2006-10/msg00005.html (8,495 bytes)
7. Re: [RFI] RFI all over the band (score: 1): Author: "Ramakrishnan Muthukrishnan" <vu3rdd@gmail.com>; Date: Mon, 2 Oct 2006 23:29:13 +0530; Thanks Earl. I will try the technique you mentioned, with my AM radio, my most valuable tool at the moment. Ramakrishnan, VU3RDD -- Ramakrishnan - VU3RDD _____________________________________________; /archives//html/RFI/2006-10/msg00006.html (11,829 bytes)
8. Re: [RFI] RFI all over the band (score: 1): Author: "Jim Brown" <jim@audiosystemsgroup.com>; Date: Mon, 02 Oct 2006 11:10:42 -0700; I agree with others that this is a very useful tool in chasing down RFI. Consider this basic principle. For low frequencies, the entire length of a long power line will be the radiator, so direction; /archives//html/RFI/2006-10/msg00007.html (8,416 bytes)

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