Non-ham Signals on 160 Meters

Art Bernstein, N2KA, writes on the Yankee Clipper Contest Club mailing list: Some time ago I posted a bit concerning whether or not anyone was hearing a signal on 160 meters, just at and above the FT8 frequency of 1840 kHz. I received some suggestions and also that no one else was hearing it. After doing a lot of eliminating around the shack and determining it was coming from the outside, I did some research to find out who transmits on 160 meters in addition to Radio Amateurs. What I found was interesting and brought back some memories from years …

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