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November 7th 20, 01:06 AM
posted to rec.radio.amateur.moderated,aus.radio.amateur.misc,rec.radio.amateur.dx
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[VK2TPM] Antenna noise canceller working well against bad switching supply noise on 40m.
marxy's musing on technology /////////////////////////////////////////// Antenna noise canceller working well against bad switching supply noise on 40m. Posted: 06 Nov 2020 01:08 AM PST http://blog.marxy.org/2020/11/antenn...king-well.html HF noise is an increasing problem that plagues hams in the suburbs. Switching power supplies, solar inverters and plasma TVs are all culprits.Here I'm plagued by occasional bad interference on 40m (but really all over HF) that I think comes from a switch mode power supply used by a neighbour. I've just built the antenna noise canceller by Terry, VK5TM and it seems to work very well.Noise |
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