[600MRG] photo of noise spikes here on 630M

Doug Allen dougk4ly at gmail.com
Sat Aug 20 13:53:14 EDT 2022


Hey guys,
I'm hoping to be able to resume 2-way contacts soon. When I last operated
two years ago, I had almost no interference on 630M. Yesterday I mentioned
the noise spikes from an unknown source outside my home that now hinder my
630M reception.  Here's a photo of those noise spikes on both the Flex 6500
panadapter and on the WSJT-x graph.. You'll also see around 1490 Hz on the
WSJT-x graph the WSPR signal of N1DAY which is conveniently between noise
spikes.  Weak signals on the same frequencies as strong noise spikes don't
get decoded. The noise spikes are narrow band and equidistant apart, as you
can see, and some much stronger than others.  Any ideas on what this
interference could be or how I might try to trace it down?
Doug K4LY
Inman, SC

[image: 542e7757-d1e8-4a11-bdf4-948ea2bb3475.png]
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