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Posted by John Davis on January 12, 2026 at 17:36:04.
In Reply to: Re: 205 kHz Mystery? posted by Bruce WA1HGJ on January 11, 2026 at 21:59:48.
I've developed what I think is a healthier response to them: I just get annoyed and curse their interfering existence. Works for me! :-) Actually, Glenn, a combination of both Gedas' and Bruce's thoughts may be your answer. Gedas appears to suspect intermodulation or other nonlinear mixing products of strong local signals, certainly a common problem at LF; and especially where audio modulation seems to be present intermittently. Bruce is thinking PLC because of seeming frequency instability. Depending where you live, 295 kHz could very well be the product of two local AM broadcasters and some intermittent power line crud interacting with each other. It can be a big enough challenge to trace when there are only two participants in an intermod situation. As the number of signals increases, the headaches increase exponentially.
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