Hi RFI List,
I'm faced with S7-S9 noise across 40m-15m at 200khz intervals. I'm looking
for assistance resolving this RFI I suspect is coming from a neighbor's
solar installation. The owners are elderly, and I'm not sure they'll
understand and be able to remedy the situation. HF is next to unusable.
Some questions:
0. So far, do I seem on the right path?
1. What tactics have worked in the past with getting owners to respond? I
can't imagine "hey your solar panels are broken" will work very well.
2. Right now I have an AH-4 tuner with a wire antenna, roughly 90'. If I
switched to, say, a vertical, fan dipole or a beam antenna would i be able
to reject the solar panel noise? If my antenna were higher up, would that
help?
3. Am I doomed to not have workable HF at home?
Thanks all!
73 Chris KC2IEB
(if the pictures are filtered, click here
<https://docs.google.com/document/d/e/2PACX-1vSKoiPx-5huAG5M1gLmYFyMPRZ_WY0PxxoC-CH7c-dpXMQZzHuvLzNX2AB8_nb8RIsN7Ri0rmXJp6Ju/pub>
)
RFI Location
Appears to be coming from solar panels on a house behind my own, about 275’
away. I traced this with a loop antenna and a cheap AM radio following to
where the noise seemed loudest.
Characteristics
Heavy S7+ “hash” noise every ~200 khz, starting around 40m and going all
the way up through 15m.
Generally starts an hour or two after sunrise, and shuts down before sunset.
Noise Log
3/13/2021
4:00 PM Local - https://www.youtube.com/watch?v=QQZr1xXIf0Y whole house
power off test @ 3:14 in the video - no improvement
Gone by 7:53 PM
3/14/2021
8:38 am
Some squiggles
Showed up almost on the dot at 9am
It’s moving down the band some
Most noticeable from 20m on up
.
--
-- Chris
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