"Bruce in Alaska" wrote in message
...
All very good advice, BUT if one were to put the BRICK in a metal box,
and bring the wires in/out of the box, with Feedthru Capacitors of say
.01uf, all that hash would stay inside the box where it belongs.
Old School technology from way back......

Correct. But much harder to accomplish. And it has the disadvantage that the
power cord and the low voltage cord on the other side now form one large RF
antenna while using ferrites, the entire string of wire is broken into
smaller parts which inherently radiate less and also pick up less. It might
even be that in the first case you end up with a huge susceptibility for RF
from the SSB....
Shielding works, but it would involve shielding and grouding of every single
part in the loop. If that is not possible, it is best to break the loop at
as many places as possible.

Meindert