AW: [Elecraft] PlugIn Balun for K2/Kat1 ATU

[Vic Rosenthal]

"George, W5YR" wrote:
> 
> This is an advantage of the 1:1 current balun: its performance is
> independent of the load impedance. 

Hi George,

I find this hard to believe, for the following reason: imbalance is equivalent
to common-mode currents on the line.  The balun works by presenting a high
impedance to these common-mode currents and not interfering with the
differential-mode (balanced) current.  However, if the system impedance is very
high, then the additional impedance to the common-mode current provided by the
balun will have less effect on it -- i.e., poorer performance.

Am I missing something?

Vic K2VCO