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RFI ID

Anyone have any ideas what this signal (RFI) is coming from ? It just appeared a few weeks ago. It's on 20 and 40 meters. It sounds like a washing machine swishing back and forth. About 1 second oscillations of low to high pitch.
Comments
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Have you tried to isolate it to in your house or external to your house?
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I have verified this is not coming from my house. Drove the neighborhood with K3 and small magnetic loop to see if I could find it. No luck. There is a neighbor with a new solar installation but that house was quiet.
I also checked with some WebSDR radios that are within 100 miles to me and I don't hear the signal. This is probably local.
The signal is there 24/7. It also changes over time. The pattern changes and the interval will change. As you can see below the signal changing its pattern, spacing and strength.
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Probably no fixing it. I have a variety of unknown signals since I live next to an Army post. I set a Remembered TNF on the persistent ones
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Video of this "signal" can be seen here. https://youtu.be/sl050wudAm0
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charge controller0
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