I put up the killer beverage to europe... two staggered 1500' phased with two
more spaced 5/8 wave. It was useless .... I shortened them to about 700 feet
and it worked fine but not much better than my reference phased pair or 580
footers. Eventually I removed the staggered ones as they did nothing but
improve f/b and did nothing for signal to noise. I still use a pair of 1500
footers to Japan; a few times a year they are better than shorter ones. I am a
believer in the vertical angle issue. Switching lengths is interesting if you
were in a part of the world where there were areas of interest at vastly
different distances.
John
> Date: Thu, 15 Jul 2010 02:19:33 +0000
> From: k3bu@optimum.net
> To: topband@contesting.com
> Subject: Re: Topband: Beverages
>
> > k3bu@optimum.net wrote:
> > > I have seen situations when long Bev (1600') on a sloping
> > terrain was worse to Eu than Inv Vee. When shortened to about
> > 600' it was a "killer".
> > > Then long phased Bev at W8LRL were hearing JAs while short
> > ones were "dead".
> > > Makes big difference in a contest.
> > >
> > >
> >
> > This inspires me to a (perhaps under-educated) pitch for
> > exploration of
> > a novel antenna: An Adaptive Elevation Angle MEMS Beverage.
> >
> >
> > Seriously, I wonder what challenges would be realized in trying
> > to use a
> > set of mechanical relays to incrementally lengthen or shorten a
> > Beverage
> > to sweep elevation angle, albeit while distorting F/B and
> > beamwidth....
> > I'd certainly purchase the journal that published such a paper.
> >
> >
> >
> >
> > 73,
> >
> > - Josh / KF4YLM
> >
>
> This can be done by breaking say 1500 ft Beverage into 3 segments with two
> relays inserted at 500 and 1000 ft points, switching between next wire
> segment and termination resistance.
>
> Some pictures of W8LRL installation are at
> http://www.teslaradio.org/w8lrl.htm
> white posts support phased and staggered Beverages. Also pictures of RX
> vertical 8 array.
>
> 73 Yuri K3BU.us
> _______________________________________________
> UR RST IS ... ... ..9 QSB QSB - hw? BK
_______________________________________________
UR RST IS ... ... ..9 QSB QSB - hw? BK
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