[Antennas] Let's talk quads

[Joe Giacobello, K2XX]

John, I ran a three element, five band quad for a while.  I noted no 
detuning effect arising from the mast.  On the other hand, my design at 
the time, although it worked well, had some fundamental flaws in it.  (I 
should have used 1/4 wavelength coax links between the remote switch 
terminals and each driven element.)  I used heavy iron weights strapped 
to the boom in order to balance the antenna in the center.

There have been many successful three element quads on the air.


73, Joe

John Webb wrote:

>My 40 mtr yagi (hy-gain 7-2) is comming down.I have run quads in the past
>and really like them.Stacking another antenna below or above is a problem.I
>am thinking of a 2-ele on 40 ,4-el on 20-10.I would like to use the boom of
>the yagi.I think it's 22 ft...There's the question.If one is to optimize for
>20 then abt 12-13ft spacing,thus only room for 3 ele.I have never run a 3
>ele.Is anyone running a 3 ele quad ?? i am sure someone is,HOW are the
>mechanics doing since things are not centered on the mast.Is there a
>de-tuning effect due to the mast ?? Has anyone used a different formula due
>to the mast ??    questions,always questions,hi...73,john
>
>
>---
>Outgoing mail is certified Virus Free.
>Checked by AVG anti-virus system (http://www.grisoft.com).
>Version: 6.0.455 / Virus Database: 255 - Release Date: 2/13/2003
>
>- - - 
>
>Your moderator for this list is:
>Larry Wilson KE1HZ antennas-owner@mailman.qth.net
>_______________________________________________
>Antennas mailing list
>Antennas@mailman.qth.net
>http://mailman.qth.net/mailman/listinfo/antennas
>
>
>  
>