[Antennas] SWR dipole

[CBoone@Earthlink.Net]

George,
I could be wrong but the way I read Terry's post, he is using
coax as the vertical dipole with the shield folded back as
the lower half???? That would make sense to me as I read it..
otherwise, it does seem confusing :)

Chris
WB5ITT

"George, W5YR" wrote:
> 
> Terry, I am not sure that I have the right picture here, but are you
> feeding the *end* of a vertical dipole directly with 50-ohm coax through a
> coiled-coax choke balun?
> 
> If so, how are you handling the enormous impedance mismatch between the
> antenna (probably 1000 ohms and possibly much more at the end) and the coax
> (50 ohms)?

> Terry Fletcher wrote:
> >
> > Yesterday I put up a 20M half wave vertical dipole with a coax choke
> > balun at the bottom end of the shield side. . It's 32' long and  seems
> > to work ok. The bottom end is off the ground about 15'. Good sig reports
> > and it's 1.7:1 or less across the entire band.       I don't seem to
> > have any rf on the feed line, no way to tell.
> >
> > I wanted to use ferrite beads as a means of decoupling the shield (ala
> > W2DU) from the bottom end of the dipole element. But I had some rg-8x on