Hi Stephanie - I know that. I've been chasing line noise (and other
noises) for 30 years or more, and have never encountered this inverse
frequency dependence before, which is why I asked.
I have both HF and VHF DF equipment. It's broadband noise so shows up
on a spectrum display only as an elevated noise level, but the audio
signature, especially on AM, is unmistakable.
73, Pete N4ZR
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web server at <http://beta.reversebeacon.net>.
For spots, please use your favorite
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On 8/8/2021 8:50 AM, Stephanie WX3K wrote:
Hard to really say what the exact root cause without further information
The character of the noise will you what the source may be. Share an audio clip
of it. Do you have a real time pandapter in your rig ? A picture would help to.
Most likely need to share these using a cloud link from dropbox or something
similar
DFing aroung the area to track the exact physical would be needed here. The
source could be a powerline issue(arcing insulator, resistive connection) but
it could be a source conducted onto the line from possibly a switching power
supply.
Stephanie WX3K
On Aug 8, 2021, at 8:24 AM, Pete Smith N4ZR <pete.n4zr@gmail.com> wrote:
A (probably) dumb question: I have a severe line noise to my west. For some
reason it is manageable on 20, much worse on 15 and crippling on 10. These subjective
descriptions are confirmed on my S-meter. Why would this be happening, and does it
offer any helpful clues to finding the source?
--
73, Pete N4ZR
Check out the new Reverse Beacon Network
web server at <http://beta.reversebeacon.net>.
For spots, please use your favorite
"retail" DX cluster.
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