[TowerTalk] 6 mtr quad

[Rudy Bakalov]

Quads don't have to have spreaders. For 6m, the elements can be made of aluminum tubing and attached to the boom (using element to boom insulators). Perhaps attach them to the bottom of the boom so that the elements are "hanging" down. Since this contraption is going on a 100' tower, the 5' loss of height is insignificant.
Rudy N2WQ      From: Jim Thomson <jim.thom at telus.net>
 To: towertalk at contesting.com 
 Sent: Tuesday, August 30, 2016 12:22 PM
 Subject: [TowerTalk] 6 mtr quad
   
Date: Mon, 29 Aug 2016 18:52:14 -0500
From: Courtney Judd <k4wi at k4wi.net>
To: "Towertalk at contesting.com" <Towertalk at contesting.com>
Cc: ACG <contest at alabamacontestgroup.org>, SECC <secc at contesting.com>
Subject: [TowerTalk] 6 mtr quad

I have been thinking about building a monster quad for 6 mtrs. I have 
googled quads and all about but came up with very little data to work 
with. I did find a 7 el regular spaced quad on 19 ft boom but I was 
thinking of more elements and wide spaced... I have several 44 ft 2 in 
booms or even a 60 ft 3 in boom. I wanted to stick this on my rohn 45 at 
100 ft. Anyone have any ideas or can point me to a web site or reflector 
where i could find something like this? Thanks, Cort K4WI

##  The problem with quads is the spreaders do nothing...except to
support the (failure prone ) wire loops.  The windload on the 4 x spreaders is a heck 
of a lot more than a simple yagi element. 

##  IE:  you require  4 x 13 ft spreaders to build a 20m ele.  Thats 
a total of  52 ft of spreaders..just to make one 20m ele = nuts.  And 
double all of that for a 40m full size quad ele.

##  My short 40M  f12  eles are only 44 ft long....and  my longer F12  40m eles
as used on the f12  N series of 40m eles, range from 52-59 ft long. 

##  6m eles are only aprx  10 ft long.  Tha’s  dead simple to make from .375 +
.500  tubing.  6 ft center section of .500 tubing...with .375 tips.  Use  a 6 ft length
of .500 tubing for the center section...and  3 ft sections of .375 tubing for each tip.

##  Thats  cheap at dx engineering.  Quads are a pita.  4 x spreaders per ele, and 
some form of spider to mech connect all the spreaders..then  onto the boom. 

##  a buddy has the m2  6m yagi...on the 52 ft boom.  It’s a flame thrower..and light weight. 

##  quads + quagis  went the way of the do-do bird. dont even go there. 

Jim  VE7RF

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