On 9/14/2010 3:37 PM, Cecil Moore wrote:
On Sep 14, 3:02 pm, wrote:
For monoband applications we can get more Z from a coaxial choke
making the winding for autorresonance. K1TTT have a good data table.
Good idea. Choose your favorite band for your Carolina Windom and wind
an "ugly balun" choke just below the isolator. An "ugly balun" choke
is capable of forcing a common-mode standing-wave current node
(minimum) on the outside of a coax braid just like a trap is capable
of such on a trapped dipole.
--
73, Cecil, w5dxp.com
OK, I'll ask, "I am correct in thinking that most are using a 'voltage
balun' (ruthroff 1:4) as the 'Low Loss Matching Transformer' and a
'current balun' (guanella 1:1) as the 'Special-High Isolation Line
Isolator?'"
I mean, logic dictates this to be the best combination ... however, one
is best to ask ...
Regards,
JS