Towertalk
[Top] [All Lists]

Re: [TowerTalk] Nested 4SQs

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Nested 4SQs
From: David Robbins <k1ttt@verizon.net>
Reply-to: k1ttt@arrl.net
Date: Mon, 15 Oct 2012 06:26:50 -0500 (CDT)
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
practical experience with a 40m inside an 80m 4-square shows it was REALLY BAD!

Oct 14, 2012 04:17:14 PM, r_bakalov@yahoo.com wrote:

Now that the elements design seem to be established, I was wondering if anyone 
had modeled the impact of nesting 4SQ structures around each other. I was 
wondering what the impact of having a 80m 4SQ inside a 160 4SQ would be.

Although I have plenty of land, I'd hate to run large feed and control lines 
all over the place unless I have to. Would be great to have "concentric" 4SQs 
with the switching and feeding all in the center. Was thinking of having a 45 
deg offset between the inner and outer structures. This looks so much neater, 
but does it work?

Along the same line, what is the impact of having a 90' tower with a bunch of 
beams in the center of a 4SQ.

I am really looking for actual computer models or first-hand experience. I am 
familiar with the tower suspended array in the ARRL Antenna Book and I am sure 
it works, but the real question is how much of a compromise this is and if it 
is worth it.

Rudy N2WQ



_______________________________________________



_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________



_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk

<Prev in Thread] Current Thread [Next in Thread>