[Elecraft] RFI on K3s

[Bill]

I replaced two OLD astrons (over 30 years on each) last summer with a 
couple of Powerwerx SS-30DVs and have had no problems with noise at all.

Having said that, I should qualify my statement: I have a typical noise 
level of band noise only. In other words, I receive no noise from local 
modern conveniences. My antennas are 100 feet from the house. Distance 
makes a wonderful noise insulator.

When I switch to a multi-band dipole fastened to an eave corner of the 
house - the noise will jump a couple of S units. That is the local 
modern crap that infests the house. And, that is why my regular antennas 
are well removed from the house.

By the way, those new power supplies do not even cause a problem on the 
close in antenna. Very quiet.

Bill W2BLC K-Line