Not a problem, just a signal type question

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  • Updated 6 years ago
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This is not the first time I have seen this "signal" but I just need to know if anyone else has seen it and/or knows what it is?
on the spectrums there is a raised platform of about 10 dB on 160 meters at about 1.819 to 1.826 kHz and on 80 meters at about 3.637 to 3.652 kHz. These seem to be harmonicly related but I don't know and I have no idea what they are. does anyone have any information?
Al N4AB
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Al

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Posted 6 years ago

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K2CM

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The signals might be caused by Wall Wart type power supplies or a device in your house with a switching power supply. Try removing those little wall power supplies one by one and see if it goes away.