An 8 compared to a 4 might not have a bunch more gain, but could have MUCH
better F/B or F/R
Beamwidth/directivity is going to be related to the physical extent, more
than the number of elements.
----- Original Message -----
From: "Tom Rauch" <w8ji@contesting.com>
To: "RICHARD BOYD" <ke3q@msn.com>; <TowerTalk@contesting.com>; "SJ W3TX"
<superberthaguy@adelphia.net>; "Pete Smith" <n4zr@contesting.com>
Sent: Thursday, April 14, 2005 6:44 AM
Subject: Re: [TowerTalk] 160m 8-circle BSEF array
> > You might want to ask K9DX and K4JA about that. I used
> the K4JA 9-circle,
> > and it did a darned good imitation of a 2-3 element yagi.
> Compared to a
> > 4-square, it was night and day.
> >
> > 73, Pete N4ZR
> >> >Or, pare it back further to a standard four-square. If
> land is not a
> > >limiting factor, you can always do a pair of four-squares
> to enhance the
> > >signal incrementally in the four additional
> sub-directions. Hardly anyone
> > >would think it would be a good bang for the buck, I don't
> think, versus a
> > >single four-square.
> > >
> > >73 - Rich, KE3Q
>
> Pete,
>
> Perhaps something was wrong with the four square?
>
> An eight circle of proper dimension (using only four
> elements at a time) has about 4dB gain over a conventional
> 4-square. A nine vertical array winds up with basically the
> same gain as the eight circle array (or slightly less when
> losses are included). The nine square has more losses in the
> feed and phasing system, there is no way around that!
>
> My four square (using 120/240 phase) would often beat a
> two-element phased array at 280 ft on 160 meters, so in my
> opinion it does a good imitation of a two or three element
> Yagi. An eight vertical array would have about the same gain
> as two traditional four squares spaced 5/8th wave and
> co-phased, or a couple dB over my 120/240 degree phase four
> square. Including all losses of course.
>
> 2 dB isn't day and night to me. a cloudy day and twilight
> difference. Hi hi.
>
> 73 Tom
>
> _______________________________________________
>
> 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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_______________________________________________
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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