Big Endian wrote:

I suppose the right thing to do is to place ferrite cores on all the
conductors in the area. Could get expensive. I have so many wires all
over the place the job seems a bit hopeless.
. . .

Well, that's one way to solve the problem. Like the sign over my desk
says, "Anyone can design a bridge that will stand up. It takes an
engineer to design a bridge that will barely stand up."

Roy Lewallen, W7EL