>From your description the feed point Z is 200 ohms and you need a 4:1
balun. 73, Dan, N5AR
Joe Barnes wrote:
>
> I am getting ready to put up a telrex 20m646 (20 meters, 6 elements, 46'
> boom) that I have cleaned up, however I am wanting to put a commercially made
> balun on the beam instead of the 1/2 wave piece of coax used for a balun from
> the factory. Does anyone know the feedpoint impeadance of this antenna? I am
> trying to determine what type of balun I need ( 1:1, 4:1 etc.) .
> Thank you for all input.
>
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