Bad QRM from stovetop circuit
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| Jan 13th 2021, 00:16 | |
WO4XTotal Topics: 0 Total Posts: 0 |
I have terrible QRM from my stove circuit, 5 S-units, repeating every several hundred Hz. aross 80m and 40m. It comes in through the antenna. When I disconnect the antenna, it goes away. When I run the radio from a battery with the antenna attached, it is still there. When I turn off the circuit breaker to the cooktop, it goes away. I can't remember for certain, but I think it must have started when I installed a new Samsung cooktop with touch controls about 6 months ago. This seems pretty impractical to install torroids unless somebody knows something I don't. What about the Timewave ANC-4 or MFJ 1026? Has anybody solved this sort of problem? 73 Jim WO4X |
| Jan 13th 2021, 05:35 | |
W1VTSuper Moderator Total Topics: 0 Total Posts: 0 |
https://surgestop.com/ Morgan manufacturing sells line filters. An RX loop with a sharp null could be oriented to improve reception. A small loop may allow placement to best null the interference, something that isn't possible with a big loop. A null canceller should help, but may require some experimentation and practice for adequate results. It typically requires some skill for best results. Zak W1VT ARRL Senior Lab Engineer |
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