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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[RFI\]\s+Introduction\s+\-\s+power\s+line\s+noise\s*$/: 9 ]

Total 9 documents matching your query.

1. [RFI] Introduction - power line noise (score: 1)
Author: N1BUG <paul@n1bug.com>
Date: Sun, 24 Jun 2012 09:09:31 -0400
I just joined the group and pulled an all nighter digging through the archives. I've got a number of questions about apparatus for finding power line noise which I will get to shortly. For sake of ma
/archives//html/RFI/2012-06/msg00031.html (7,279 bytes)

2. 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)

3. Re: [RFI] Introduction - power line noise (score: 1)
Author: N1BUG <paul@n1bug.com>
Date: Sun, 24 Jun 2012 18:56:33 -0400
Thanks. At present I doubt I will need to use HF to track this down but we will see how it goes. I'm finding considerable ambiguity when tracking at 135 MHz with the MFJ-856 but I think it would be b
/archives//html/RFI/2012-06/msg00036.html (10,015 bytes)

4. Re: [RFI] Introduction - power line noise (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Sun, 24 Jun 2012 16:48:02 -0700
"I am all too often identifying adjacent pairs of poles as "noisy". This doesn't feel right to me. I suspect only one of each pair is the actual source. In three separate locations, the power company
/archives//html/RFI/2012-06/msg00037.html (7,653 bytes)

5. [RFI] Introduction - power line noise (score: 1)
Author: "Lee K7TJR" <k7tjr@msn.com>
Date: Sun, 24 Jun 2012 19:24:46 -0700
Paul, I feel your pain. I have power lines close from 4 power generating dams within 20 miles of my house. There are many powerlines from 110V to 500KV. I concur that you need to go higher in frequen
/archives//html/RFI/2012-06/msg00039.html (8,939 bytes)

6. Re: [RFI] Introduction - power line noise (score: 1)
Author: N1BUG <paul@n1bug.com>
Date: Mon, 25 Jun 2012 07:14:18 -0400
Interesting, Kurt. Oddly this is happening even on weaker noises that only move the MFJ-856 meter to half scale or less. I was fully expecting to find noise radiating from ground and guy wires! But s
/archives//html/RFI/2012-06/msg00045.html (8,265 bytes)

7. Re: [RFI] Introduction - power line noise (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Mon, 25 Jun 2012 08:16:56 -0700
The way to think about this is to realize that most noise we hear is radiated by some antenna into our antennas, NOT conducted into our gear by the connection of our gear to the power line. Power lin
/archives//html/RFI/2012-06/msg00046.html (10,860 bytes)

8. Re: [RFI] Introduction - power line noise (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Tue, 26 Jun 2012 00:08:45 -0400
Another point is some guy wires may be relatively hot with RF at some frequency and produce no RFI, BUT can under the right circumstances. At one time I had to local repeater in my garage. Originally
/archives//html/RFI/2012-06/msg00050.html (13,451 bytes)

9. Re: [RFI] Introduction - power line noise (score: 1)
Author: N1BUG <paul@n1bug.com>
Date: Tue, 26 Jun 2012 19:24:15 -0400
I want to thank everyone who has offered support and information on my problem. I do understand a lot of RFI originates from homes and that some of it can at first appear to be from power lines. I ha
/archives//html/RFI/2012-06/msg00066.html (9,716 bytes)


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