Per my DX Eng Guide used to construct my 40M 4 Sq and in daily use, radiation
is on the diagonals . .. not broadside. - Alan K9MBQ
-----Original Message-----
>From: kq2m@kq2m.com
>Sent: Oct 18, 2020 2:49 PM
>To: towertalk@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....
>
>1) If I recall correctly, for purposes of focusing on Europe, ideally I would
>want to put the 4 elements in a box formation in the NE, SE, SW and NW
>directions relative to the middle of the array. Is that correct?
>
>2) In the 4-square when I select the controller direction NE, I am effectively
>radiating broadside NE from the NW and SE elements. Is that correct?
>
>3) In the past I had the bottom of the 4-square elements soldered to center
>conductor of the pin of an SO239 with the radials attached to each of the
>SO239 screw holes, with the coax connector for the phasing line screwed onto
>the SO239. (The choke was located below the PL259 on the phasing line) This
>worked well but I am trying to improve the design.
>
>If I were to terminate the bottom of the 4-square element by twisting it
>through and around one hole of the porcelain insulator and soldering it there,
>would I still be able to then solder a small wire from that connection to the
>center conductor pin of a SO239 with the radials attached to the SO239 screw
>holes as before? My idea being that I can do that then I can use a piece of
>twine through the remaining porcelain insulator hole taped to the coax to
>provide additional physical support for the coax and radials – which will be
>helpful during ice storms.
>
>I would appreciate any thoughts and suggestions and possible improvements on
>this design.
>
>Tnx & 73
>
>Bob, KQ2M
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