[TowerTalk] yagi tapering conversion

Jim Brown jim at audiosystemsgroup.com
Thu Jul 2 20:54:26 PDT 2009


On Thu, 02 Jul 2009 22:34:52 -0300, Felipe Ceglia - PY1NB wrote:

>Hello,

>I have a couple of yagis in hand which I would like to convert to the 
>projects presented on the ARRL Antenna Book.

>Their element tapering will not match the ones in the handbook projects. 
>Is there a software or calculation that I could use to "translate" the 
>handbook tapering into what I have in hands?

Yes. There is DOS software distributed with the ARRL Antenna Book that 
will scale any design for one frequency to another frequency, and also 
allows changing the diameters of elements and their tapering. I've used 
it. Being DOS software, it's menu driven and not as easy as more modern 
software, but it works. I think it's called SCALE or something obvious 
like that. Look on the CDROM, or in the directory where the software from 
the CDROM gets installed on your computer. 

73,

Jim K9YC 






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