Nate Bargmann wrote:
I think W8JI was strictly
looking at loss. His page has little commentary as I understand that what
is there were slides at a Dayton forum.

A trap would naturally have higher losses at
its resonant frequency because that's where the
internal circulating currents are the highest.
Detuning the trap would reduce trap losses.
Removing the trap would reduce trap losses. :-)
--
73, Cecil http://www.w5dxp.com