Potentially cut your QRM local mains utility power noise down with some ferrites. This is the way I did it but your mileage may vary! Callum.
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Watch video Filtering & Noise Reduction for your Ham Shack (with Ferrites!) online without registration, duration hours minute second in high quality. This video was added by user DXCommander 26 March 2022, don't forget to share it with your friends and acquaintances, it has been viewed on our site 20,38 once and liked it 73 people.