I was thinking it was a 4:1 coax balun like this:
http://www.g8ajn.tv/images/balun.gif
But if it's a straight 50 ohm to 50 ohm connection, like a bead balun, the
coax shouldn't matter.
On Mon, Sep 9, 2013 at 5:19 PM, Hal Kennedy <halken at comcast.net> wrote:
> Doesn't make a lot of sense Cort. If the antenna is actually 50 ohms
> where you want it, than any length of 50 ohm coax should work fine. RG8,
> Rg8X, RG213 are all 50 ohms plus on minus 1 or two ohms. To repeat a few
> previous questions, what is the balun, are you testing at high or low
> power, and what length coax do they call for?
>
> 73
> Hal
>
>
> On 9/9/2013 4:24 PM, Courtney Judd wrote:
>
> ok antenna gurus what did i do wrong? originally the swr on this 4 el
> Hygain 6 mtr beam was a perfect 1:1 at 50.1 . But I wanted to run high
> power thru it so the manual calls to change the coax balun from rg58 to
> rg213 which i did except I think that the coax was RG8. It was cut to the
> same length as the 58 as per the manual. Now the swr at 50.1 is 2:1 and the
> resonant point for 1:1 is clear up at 52.0 . I don't want to change the
> element lengths as they should be right on. Only thing else is move the
> beta match in or out some.... or match it some other way. Would the 213/rg8
> make that kind of difference? Maybe I should change the length of that
> coax! Ideas? help!!!! lol, Cort K4WI
>
>
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