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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[RFI\]\s+Power\s+Line\s+Noise\s+Specific\s+to\s+15\s+meters\s*$/: 6 ]

Total 6 documents matching your query.

1. [RFI] Power Line Noise Specific to 15 meters (score: 1)
Author: Pete Smith N4ZR <pete.n4zr@gmail.com>
Date: Sun, 3 Oct 2021 16:01:21 -0400
This is a bit of a puzzle, to me anyway.  With my tribander pointed in one direction (west), I have extremely bad what sounds like line noise.  This noise is not audible on 20 meters, on 10 meters, o
/archives//html/RFI/2021-10/msg00012.html (7,672 bytes)

2. Re: [RFI] Power Line Noise Specific to 15 meters (score: 1)
Author: Michael Carter <Mike.Carter@unh.edu>
Date: Sun, 3 Oct 2021 20:19:23 +0000
Pete, Does your noise remain constant in intensity/signal strength across the 15 meter band? If not, you may have a non-power line source to hunt. If you have an oscilloscope, place its probe across
/archives//html/RFI/2021-10/msg00013.html (11,012 bytes)

3. Re: [RFI] Power Line Noise Specific to 15 meters (score: 1)
Author: Mike Martin <mike@rfiservices.com>
Date: Sun, 03 Oct 2021 20:04:01 -0400
Couple of things that will change a noise from what's considered normal. The source of the noise or where the noise is radiating from to get to your antenna could be in a position that allows it to a
/archives//html/RFI/2021-10/msg00016.html (8,642 bytes)

4. Re: [RFI] Power Line Noise Specific to 15 meters (score: 1)
Author: Pete Smith N4ZR <pete.n4zr@gmail.com>
Date: Sun, 3 Oct 2021 21:40:49 -0400
Thanks, Mike - As to your latter point, I think this qualifies as line noise because it is present all across 10, 15 and 20, just at much lower amplitude except on 15, but it certainly could be a res
/archives//html/RFI/2021-10/msg00017.html (8,967 bytes)

5. Re: [RFI] Power Line Noise Specific to 15 meters (score: 1)
Author: "EDWARDS, EDDIE J via RFI" <rfi@contesting.com>
Date: Mon, 4 Oct 2021 14:01:20 +0000
Mike, You're statement that it's not likely is correct most the time (99.9%), but there are rare occasions when the hardware configuration doesn't follow the expected weather changes. Had one case wi
/archives//html/RFI/2021-10/msg00018.html (9,224 bytes)

6. Re: [RFI] Power Line Noise Specific to 15 meters (score: 1)
Author: Michael Carter <Mike.Carter@unh.edu>
Date: Mon, 4 Oct 2021 14:31:42 +0000
Thanks, Ed - those are good, notable exceptions to the general trend of rain/condensation shorting out the arc path/gap. We have some transformer primary bushings equipped with squirrel guards, but t
/archives//html/RFI/2021-10/msg00019.html (9,796 bytes)


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