On Mon, 03 Jan 2005 11:37:25 GMT, ml wrote:

hi

i've build a 80 center fed dipole, cut for 80, to use multiband-- fed
via coax.

my goal is to use a balun.

my recomendations so far have been for 1:1 /4:1 and 9:1, got nearly a
equal tally of votes on each



leaves me a bit confused however

lets say i use a 9:1 for example

on 80 my dipole is resonant, therefore should be around 72ohms. lets
presume it is

now w/a 9:1 attached what happens? is this my trade off, ie i become
very ineff at resonance while gaining some better match at the non
resonant points?

Permit me to ask a simple question. Aside from the transformation of
the impedance, what benefit were you planning to obtain from the
Balun? If you can't answer that question, then perhaps you don't
really need a Balun.

Another question, if you don't mind. Are you familiar with Choke
Baluns or the W2DU Balun?

Bob, W9DMK, Dahlgren, VA
http://www.qsl.net/w9dmk