[Lowfer] Umbrella Antenna.

[William E. Isakson]

Kurt, that is just a top loaded vertical exactly like most of us were using
during the time that the low bands were being tested before they were made
ham bands.   I am very surprised that you had not seen one before.   Most
of what is seen in your wikipedia article are lacking a perimeter wire, a
wire that connects all the top wires together around the perimeter.    A
perimeter wire adds very substantially to the effectiveness.     Also, when
you drape the wires down like those shown, there is quite a bit of
sheilding that goes on.   It is helpful to put the wire ends as high as
possible.
I should also note that Butternut sells a top loading set of wires to go
with its basic vertical for 160 meters.   It gives you a broader working
range.
--------

Bill Isakson
AC6QV
Oregon USA
bill.isakson at gmail.com




On Mon, Oct 9, 2023 at 10:30 PM Facility 406 <
facility_406 at bruteforcedevelopment.com> wrote:

> A low frequency antenna, of a design I was not familiar with:
>
> https://en.wikipedia.org/wiki/Umbrella_antenna
>
> Enjoy!
>
> Kurt
> ______________________________________________________________
> Lowfer mailing list
> Home: http://mailman.qth.net/mailman/listinfo/lowfer
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Lowfer at mailman.qth.net
> Post must be less than 50KB total for message plus attachment!
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>