[TowerTalk] 4 square question

[kq2m at kq2m.com]

I really want to thank Jim, Jeff, Les, Mike, John and Gary for all of their help, answers and ideas to which I have been giving a lot of thought this week. The information gleaned has made me confident of the new design.  Unfortunately there is no way to avoid putting the 4-square elements around the tower so I know that interaction effects will likely be noticed.  Vicious storms have taken down all the other tall trees that were previously in use to support my 80 meter 4-square.

Note to Jim Lux – I am particularly intrigued by your idea of changing the feeding of the elements so that I can radiate broadside from the side of the array rather than on the diagonal since the only trees that I have to support elements happen to be roughly N, E, S and West, which, with the Comtek phasing box, would give me radiation N, E, S and West rather than the desired NE, SE, SW and NW. 

The Comtek ACB-4 outdoor box uses the NW element in Pos 1 on the outdoor , NE (2), SE (3) and SW in position 4 and arranged as shown in the .pdf:

www.static.dxengineering.com/pdf/comtek_4_square_info.pdf

Which elements (N, E, S, W) would you put in which positions on the box (so that the 4-square radiates toward the NE instead of East?

How is the gain and F/B and F/S compared to the standard pattern that radiates diagonally?


Tnx to all & 73!

Bob KQ2M 



-----Original Message----- 
From: Gary Johnson 
Sent: Monday, October 19, 2020 12:49 PM 
To: kq2m at kq2m.com 
Cc: towertalk-request at contesting.com 
Subject: Re: [TowerTalk] 4 square question 

This article may be of some use to you in your 4-square adventures. It 
also appeared in NCJ.

http://wb9jps.com/Gary_Johnson/Amateur_Radio_files/Four_Square_Rebuild_at_N6RO.pdf

-Gary NA6O

On 10/19/2020 9:00 AM, towertalk-request at contesting.com wrote:
> From: TowerTalk<towertalk-bounces at contesting.com>  On Behalf Ofkq2m at kq2m.com
> Sent: Sunday, October 18, 2020 1:49 PM
> To:towertalk at contesting.com
> Subject: [TowerTalk] 4 square question
>
> Hi,
>
> I will be rebuilding several 4-squares this season as well as restringing them in different trees due to Tornado damage (loss or destruction of many trees at my qth) during Tropical Storm Isaias on August 4th.  I have a few questions for which I would appreciate your guidance....