[Antennaware] Quagi 20-10

[Joe Giacobello, K2XX]

Greg, I've comparatively modeled quads and equivalent quagis, but never 
quagis using trapped triband Yagi directors.  I'm sure some one must 
have done it, but they're likely to be on the Quads forum: 
HAMQUADS at yahoogroups.com.

Try there and I'll bet you get some competent responses.

73, Joe
K2XX

> weinfurt <mailto:weinfurt at intelliwave.com>
> Thursday, July 10, 2014 3:13 PM
> Hi all,
>      I have a 20-10 Quad, 2 element with 8' boom, at 50' that has 
> worked well for me.  Have had it about 5 years.  Setting on my garage 
> roof is a pair of directors (Dir 1 and Dir 2) for a 4 element Yagi 
> tribander.   I have thought of what it would take to set it up with 
> the quad as reflector and driven elements and the 2 directors as added 
> elements.
>
>      (A quagi is an antenna with quad horizontal polarization of 
> reflector and driven element, with one or more yagi directors.)
>
>      I know a lot a things would change, resistance, spacing of 
> elements, etc., and of course boom length. I have enough boom material 
> to go to 28' total length.  Wondering what  the gain, swr, 
> diretctivity,  f/b would be and would it be worth the work to do it.  
> I have seen them built for 2 meters, but a tribander on 20-15 and 10 
> would be unique, haven't seen that one yet!
>
>      I don't have any computer modeling software for antenna's and 
> wondered if anyone would or could model such a set up that I am 
> envisioning, in paragraph one.  I have a machine shop in my garage and 
> can weld aluminum, all kinds of antenna test equipment, etc.
>
> Much appreciated,
> 73 de  NS8O
> Greg Weinfurtner,
> Albany, ohio
>
>
>
>
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