On Tue, 14 Jun 2005 12:59:42 -0500, Cecil Moore
wrote:

Buck wrote:

W5DXP wrote:
What you are missing is that first piece of matching section
which can be any length less than 1/2WL. After that first
piece of matching section, you could indeed switch to a
different characteristic impedance. Congratulations, you
have just invented the G5RV. :-)

Fred, I believe that you and Cecil are 180 degrees out of phase. Did
someone make a type-O?

Well, I made an English language blunder as I was editing my posting.
I should have dropped the which above. The first piece of matching
section, which can be any length less than 1/2WL, brings the impedance
looking into it to a purely resistive value, i.e. a resonant value,
i.e. a current maximum point. So the first section of matching is the
most important. After that, any Z0 could be used, but *only on that
particular band*. That last *constraint* may be what you are missing
(if you are missing anything at all). I am not aware of any phase
difference between Fred and me.


Fred says the matching section needs to be any length more than a 1/2
wave and you say it is less than a 1/2 wave. This is my confusion...


--
73 for now
Buck
N4PGW