Two and three element Yagi design data

[Charles Greene-2]

Hi,

I am redoing a two element moxon square wire beam we used for field day by
making it a bit wider and adding a three element wire 20 meter beam
inside.  The PVC tubes we used (18' at each end) are too heavy and bend too
much, so we are going to replace them with 21' fiberglass tubes.  Can
someone please refer me to some design data for two element and three
element beams.  EZNEC 3.0 works pretty good, but it's easier if  you have a
starting point.  From RI, a 60 deg beam covers 95% of the US, so we don't
need to rotate it.

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[Orrin Winton]

On 7/1/05, Charles Greene <[hidden email]> wrote:
> I am redoing a two element moxon square wire beam we used for field day by
> making it a bit wider and adding a three element wire 20 meter beam
> inside.  The PVC tubes we used (18' at each end) are too heavy and bend too
> much, so we are going to replace them with 21' fiberglass tubes.  Can
> someone please refer me to some design data for two element and three
> element beams.  EZNEC 3.0 works pretty good, but it's easier if  you have a
> starting point.  From RI, a 60 deg beam covers 95% of the US, so we don't
> need to rotate it.

Try my Yagi-design javascript.  At least it will give a starting point for you,
which you can optimize with YO (the Yagi Optimizer program):

http://orrin.freeshell.org/yagiscr.html

And give me feedback on what you get. The script will output x,y,z coordinates
which you can then input into EZNEC, YO, etc.

Orrin wn1z
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[Stuart Rohre]

Another resource especially for Moxons is the L. B. Cebik antenna website,
(W4RNL):   www.cebik.com

Almost every kind of antenna is modeled there and much good info on limits
of models also.

Stuart
K5KVH



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[S55M]

http://www.s55m.com/teh/index.htm

You can make either monoband duo band or triband mox with this design.

73's

S55M-Adi



----- Original Message -----
From: "Stuart Rohre" <[hidden email]>
To: "Orrin Winton" <[hidden email]>; "Charles Greene"
<[hidden email]>
Cc: <[hidden email]>; <[hidden email]>;
<[hidden email]>; <[hidden email]>
Sent: Friday, July 08, 2005 1:42 AM
Subject: Re: [Elecraft] Two and three element Yagi design data

> Another resource especially for Moxons is the L. B. Cebik antenna website,
> (W4RNL):   www.cebik.com
>
> Almost every kind of antenna is modeled there and much good info on limits
> of models also.
>
> Stuart
> K5KVH
>
>
>
> _______________________________________________
> Elecraft mailing list
> Post to: [hidden email]
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
>  http://mailman.qth.net/mailman/listinfo/elecraft
>
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com
>

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