Topband: Skirted vertical antennas for MF broadcast

[James V Redding PE]

See https://apps.dtic.mil/sti/citations/AD0693997

Sort of worthless as the takeoff angle snf gain is not as good as collinear
arrays or rhombics. 2:1 frequency at 75 ohms.  Visible in pictures ot WW2
ship fore decks.

Jim/VEZ



On Thu, Apr 7, 2022 at 12:54 PM Kenneth Grimm <grimm at sbc.edu> wrote:

> The first time I saw one it was called the Folded Umbrella and was
> popularized by the late WB5IIR, John Haerle.  He wrote an article for HR in
> May of 1979.  He also described it in his book, "The Easy Way."  I've been
> using my own version of the basic design on 160 for several years.
> 73,
> Ken - K4XL
>
> On Thu, Apr 7, 2022 at 12:24 PM Mark - N5OT <r-emails at n5ot.com> wrote:
>
> > Conical Monopole
> >
> > Say that fast 3 times:
> >
> > Conical Monopole
> > Conical Monopole
> > Conical Monopole
> >
> > Right.  The first time I saw one, it was called a Folded Unipole. My 160
> > support can be probably 80' or 24 meters.  I have considered my options
> > for broad-banding it for 160.  This is one of the choices.
> >
> > Mark N5OT
> > _________________
> > Searchable Archives: http://www.contesting.com/_topband - Topband
> > Reflector
> >
>
>
> --
> Ken - K4XL
> BoatAnchor Manual Archive
> BAMA - http://bama.edebris.com
> _________________
> Searchable Archives: http://www.contesting.com/_topband - Topband
> Reflector
>