[RFI] Line noise vs Frequency

[k1ttt.dave at gmail.com]

I have had ones like that here off and on.  Usually traced to pole guy wires that had loose or corroded connection to the pole ground.  The utility here has started adding a 5' or so insulating section at the top of guy wires whenever they work on a pole.  This moves the metallic part of the guy farther from the hv wires which should reduce induced voltages on them.

David Robbins K1TTT
e-mail: mailto:k1ttt at arrl.net
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AR-Cluster node: telnet://k1ttt.net:7373


-----Original Message-----
From: RFI <rfi-bounces+k1ttt=arrl.net at contesting.com> On Behalf Of Pete Smith N4ZR
Sent: Sunday, August 8, 2021 08:25
To: RFI List <rfi at contesting.com>
Subject: [RFI] Line noise vs Frequency

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
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