Topband: 160 Meter BALUNS

[James Wolf]

> Since this is such a point of interest I'll make some 
> measurements this week and put photos of impedance sweeps (in 
> Smith Chart format) up on a web page so everyone can judge 
> for themselves.


Tom,

If you get the chance could you try a coil that is tapered?
I envision something along the lines of wrapping coax around those orange
cones that are used at roadwork sites.
There is a company (whose name escapes me at the moment), that is making
tapered RF coils that operate over an extremely wide frequency range
although these are filled with ferrite. 
Just a thought.

James Wolf, KR9U