[Elecraft] OT: Vertical doublets (was: Home made Sigma-GT5 & KRC2 or SGC?)

[Darrell Bellerive]

Interesting discussion!

Anyone have any references to the efficiency of baluns with respect to
mismatched impedances? For instance the non-resonant doublet used on 40
through 10 metres.

I have always believed that baluns were only useful at the design
impedance and that losses would dramatically increase as the impedance
changed from the design value. Not to mention harmonic generation.

So if the loss due to a tuner is typically less than 1 dB over it's
matching range, what would the losses of a balun be over a similar range
of impedances?

Darrell VE7CLA K2 #1973

On Tue, 2004-03-23 at 16:19, George, W5YR wrote:

> 
> So, I find your conclusion and result that you seem to measure minimum loss
> with maximum inductance difficult to understand or explain. Perhaps you can
> shed some light for me.
> 
> Interesting . . .
>