[TowerTalk] Wilson 5 element 20 meter monobander

[Michael Tope]

I think what everybody is trying to say is that for a fixed 40 ft
boom length, you don't gain much by increasing the number of
elements beyond 4. That doesn't mean that 5 can't or won't work
as well as 4, it just means that 5 won't work much better than 4
unless you lengthen the boom beyond 40 ft.

73 de Mike, W4EF.....................................

----- Original Message -----
From: "Tower (K8RI)" <tower at rogerhalstead.com>
To: "Ted Bryant" <w4nz at comcast.net>
Cc: <EL34GUY at aol.com>; <towertalk at contesting.com>
Sent: Saturday, October 09, 2004 1:33 PM
Subject: Re: [TowerTalk] Wilson 5 element 20 meter monobander


>
> The old KLM was 5 L on a 42 foot boom and I thought it worked well.  At
> least it worked well enough that I was happy.
>
> Roger (K8RI)
>
> Ted Bryant wrote:
>
> >Tim and Jim are correct. A 40-ft boom on 20M is a little short for five
> >elements. However, someone once said that sometimes you just gotta use
what
> >you got. So, if you have a fairly recent copy of the ARRL Antenna
Handbook,
> >there is a design shown in the chapter on HF yagis for a 5-element, 20
meter
> >yagi on a 40-foot boom (520-40.yag on the CD that comes with the
handbook).
> >There is also a similar design that comes with K6STI's YO software.
> >
> >73,Ted w4nz
> >
> >
> >
> >
> >>-----Original Message-----
> >>From: towertalk-bounces at contesting.com
> >>[mailto:towertalk-bounces at contesting.com]On Behalf Of Tim Duffy K3LR
> >>Sent: Saturday, October 09, 2004 1:50 PM
> >>To: EL34GUY at aol.com
> >>Cc: towertalk at contesting.com
> >>Subject: Re: [TowerTalk] Wilson 5 element 20 meter monobander
> >>
> >>
> >>Hi Mark!
> >>
> >>I had a brand new one of these in 1979. Its factory dimension
> >>performance was horrible. I was attending college at the time and
> >>thanks to hundreds of key punch cards I was able to model on
> >>the mainframe computers (optimizers were only a dream in the
> >>public sector) a 56 ft boom design which worked much better with
> >>5 elements. As Jim, SM2EKM (He visited me about the time I
> >>extended the boom in 1980) pointed out, 5 elements on 40 ft boom
> >>is one element to many for that boom length.
> >>
> >>73!
> >>Tim K3LR
> >>
> >>EL34GUY at aol.com wrote:
> >>
> >>
> >>
> >>>Hello,
> >>>
> >>>Does anyone have any experience with the large 3 inch 40ft boom Wison
> >>>monobander for 20 meters? Im wondering how well it works and if
> >>>
> >>>
> >>it was  reoptimized
> >>
> >>
> >>>and what the new spacings might be? 73
> >>>
> >>>Mark
> >>>W0NCL
> >>>_______________________________________________
> >>>
> >>>
> >
> >_______________________________________________
> >
> >See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless
Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any
questions and ask for Sherman, W2FLA.
> >
> >_______________________________________________
> >TowerTalk mailing list
> >TowerTalk at contesting.com
> >http://lists.contesting.com/mailman/listinfo/towertalk
> >
> >
> >
>
> --
> Roger Halstead (K8RI ARRL Life Member)
> Worlds Oldest Debonair (N833R S# CD-2)
> www.rogerhalstead.com
>
>
> _______________________________________________
>
> See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless
Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any
questions and ask for Sherman, W2FLA.
>
> _______________________________________________
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>