this is the one I made several years ago designed by W9XR.
Search- W3GH noodle beam- for construction fotos.
32 foot boom with fiberglass elements containing #14 ins wire.
vacuum relays in center of each element for cw/fone adjust.
w3gh Green Hornet
Subject: Re: [TowerTalk] Re: 40m beam with wires dangling down
> yes, the wind effect is dampened considerably with the attachment of 2oz
> fishing weights to the end of each wire.
>
> Have Fun,
> dave
> wa3gin
>
> corneliuspaul@gmx.net wrote:
>
> >Its pretty close to what W9XR once described in CQ-Contest magazine
> >as the "spaghetti beam"
> >
> >I had a 3ele of that sort up for a few years, made of 14m fiberglas
elements,
> >(7m either side) with approx 3.5m wire dangling down either side.
> >Worked very well, only in windy situation the dangling wires start
swinging
> >and so does the SWR and (I presume) the pattern.
> >
> >
> >
> >
> >
> >
> >At 10:15 05.11.2003 -0500, WA3GIN wrote:
> >
> >
> >>One could argue that bending the element 90 degrees does not have the
> >>effects you discibe as linear loading.
> >>
> >>Have you actually tried it?
> >>
> >>73,
> >>dave
> >>wa3gin
> >>
> >>Richard Karlquist wrote:
> >>
> >>
> >>
> >>>>Folding the element does little to reduce the performance. It looks
> >>>>hokie, but it's simple, light weight, more efficient than lumped
> >>>>inductance. The wires have to clear whats underneath but it's a
> >>>>
> >>>>wa3gin
> >>>>
> >>>>
> >>>>
> >>>>
> >>>No. A properly designed lumped inductance is better than linear
> >>>loading. That's why many 80 meter Yagi owners have upgraded to
> >>>W6ANR's aftermarket loading inductors, replacing the original linear
> >>>loading. Linear loading is a marketing concept to make you think
> >>>you have eliminated the ohmic losses associated with loading
> >>>coils. Instead, it *increases* the losses.
> >>>
> >>>Rick N6RK
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>_______________________________________________
> >>
> >>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@contesting.com
> >>http://lists.contesting.com/mailman/listinfo/towertalk
> >>
> >>
> >
> >_______________________________________________
> >
> >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@contesting.com
> >http://lists.contesting.com/mailman/listinfo/towertalk
> >
> >
> >
> _______________________________________________
>
> 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@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
_______________________________________________
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@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|