Topband: Subject: 80 meter 4-square

[Pete Rimmel N8PR]

Terry, 

You might consider four half wave sloping dipoles with the upper end hung out about 3 – 4 feet from the top of the tower.  I used this arrangement with four Current baluns at the dipole center and 75 ohm feed.  The feed points were spaced 1/4 wave apart just as you would with any vertical array.  This was adjusted by where the far ends were located.   I then used the COMTEK ACB-4 Hybrid Four-Square Systems include the 90 Degree Hybrid Relay Units to feed the system.  It worked very well, and had good front to back and front to side.  It heard well, but not as well as my Waller flag antenna.  BTW, with insulated guys I did not need to detune the tower to use the system.  I have over 315 DXCC on 80 meters with this system.

73,  PeteR  N8PR  

From: Topband <topband-bounces at contesting.com> on behalf of terry burge <ki7m at comcast.net>
Sent: Tuesday, April 3, 2018 11:11:18 PM
To: topband at contesting.com
Subject: Topband: 80 meter 4-square

Hello Guys and Gals,


I have been planning on building an 80 meter 4-Square around my 117' tower. I know it will likely require detuning the tower to make it 'invisable' to the 4-square so that is probably in the cards. Because of the difficulty of my particular location have to consider shifting the array a bit. Wondering if offsetting it from the tower a couple of feet to the east would matter? I've also thought about slightly orienting the 4-square instead of on N-S-E-W to turn it like 10 degrees where the north-south lineup of verticals would be more like 10 degrees - 190 degrees and the east west accordingly. The reason for this would be that the side hill to the NE where I have my one vertical has about 5 foot dropoff to the level ground. Basically I like in a gorge area with a seasonal creek through it but you deal with what you have of course.


Any thoughts pro or con?


Terry