Noisy RX on the low bands? Lets clean it up!

[@SuperPawelz]

Hi Mark, where’s the link for this filter design you mention at the end of your video ?

[@MarkG0MGX]

gm3sek.com/2019/10/11/clean-up-your-shack-2019/

[@g0fvt]

For a monoband dipole why not cut your 450 or 600 feeder to an electrical half wave long and common mode choke it to hell in the shack? I do something fairly similar, a ZS6BKW and a massive common mode choke effort in the shack. I have no mains filters yet but my noise levels are way down on what they were, On a lighter note a while back noise levels were driving me mad, I have a microprocessor driven rf power meter but the CPU "sleeps" with no signal... a shame I was running it from a switchmode wall wart!

[@m0sjd]

hi mark thanks for all your videos..I have built the mains filter and im seeing absolutely no difference in noise level s9 usually on 40m. Im using an end fed wireI wonder if you have any suggestions please? m0sjd steve

[@MarkG0MGX]

You need to try a balanced antenna.

[@johnratcliffe6438]

What can be done about noise on the high bands? 20-6m?

[@stirlingpark6145]

Does anyone make and sell those mains filters Mark?

[@MarkG0MGX]

The bits came from Farnell.

[@stirlingpark6145]

@@MarkG0MGX Thanks Mark, I think that there would be a good market for pre-constructed boxes.

[@MarkG0MGX]

@@stirlingpark6145 Maybe - they would be quite expensive I think. I'll see how much the parts are and if there is any interest.

[@noelwaddoup2528]

@@MarkG0MGX Hi Mark Did you pursue the possibility of making these for sale? I would certainly be interested. Noel.

[@MarkG0MGX]

@@noelwaddoup2528 I did and I couldn't find a good quality filter from any of the far east sites. I would be ahppy to make one for you if you need one doing.