I once had a home-brew vertical for 2 meters which was a stacked array.
What some genius had done was taken a pole vaulting pole and built 2
antennae inside.
I can't remember now what the gain was, but it worked pretty well!
----- Original Message -----
From: "Dave Marthouse" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, November 22, 2004 3:53 PM
Subject: Re: Antenna Arrays


> Hi Steve,
>
> Your idea is an interesting one.  Think back to the laws of physics.  Down
> on the lower frequencies, let's say the standard broadcast band, stations
> achieve directionality through the use of multi-tower arrays that are
> phased
> to give a directive pattern.  There is no reason that the same can't be
> done with verticals on higher frequencies.  The same laws of physics
> apply.
> It probably would be simpler to get a yagi or a quad up for the bands in
> question.  With that sort of antenna you would be able to rotate it to
> favor
> the direction you wish.  With a set of phased verticals you I'm sure could
> get directional properties but it would be more difficult and more of a
> hassle to do it with the verticals than the "point and shoot" approach of
> yagis or quads.  The reason yagis or quads aren't used for lower
> frequencies
> is a question of size.  Theoretically a 160 meter yagi would require lots
> of
> real-estate and not to mention a huge rotor to move all that aluminum.
> Well
> that's my 2 cents.  Does anyone else have comments?
>
>
> Dave Marthouse N2AAM
> [log in to unmask]
>
>
> ----- Original Message -----
> From: "Steve Sweeney" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Monday, November 22, 2004 2:24 PM