[TowerTalk] Question on 80M 4-square amongst trees

[Robert Shohet]

Hi Dan,

Thank you for stating what I did not make clear - that it is the thickness
of the element and not the material used, that determines the bandwidth.  I
thought that was obvious, but perhaps not!

However, I was not aware that you could the increase the bandwidth by the 2
wire method that you are referring to.  I am going to check out his website
and read that posting.  Many thanks for mentioning it!  It may provide a
workable solution for the challenges that I have on 80 meters using #13 PVC
wire for the elements!

73
Bob KQ2M

----- Original Message -----
From: "Dan Levin" <djl at andlev.com>
To: <towertalk at contesting.com>
Sent: Thursday, September 18, 2003 12:56 PM
Subject: Re: [TowerTalk] Question on 80M 4-square amongst trees


> Bob wrote:
>
> > You WILL see a significant low-swr bandwidth improvement
> > by using aluminum tubing vs wire. NO COMPARISON!  I am
> > all but convinced that the aluminum elements provide
> > better F/B, F/S and forward gain, but I have never modeled that.
>
> Remember, it is the effective diameter of the element that matters,
> not (in this case) the material, or the fact that it is tubing
> vs wire.  You can easily increase the
> effective diameter of a wire antenna by simply using two
> (or more) wires that are parallel to each other, spaced apart
> by some distance (say 3-6"), and tied together electrically
> (say with horizontal wires soldered between the two vertical ones)
> every so often (say 3' or so).  L.B. Cebik has a nice discussion
> of this on his web site, www.cebik.com .
>
>                   ***dan, K6IF