Not much but neither does much of this thread regarding my original query.
I hope someone that understands the question can answer in a way that my
feeble brain can comprehend. At least we're eliminating what's not the
answer.
73
Hank WD5JFR

"Reg Edwards" wrote in message
...
Cec et al, what have circulators, S-parameters, etc. to do with HF ?