[VK2TPM] Antenna noise canceller working well against bad switching supply noise on 40m.
 

marxy's musing on technology

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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