[Elecraft] To Balun or not to Balun?

Thu Aug 7 14:01:30 2003

Jack:
  Your best bet by far is to use a truly balanced tuner (transmatch) 
between the coax and the 450 ohm line.  Forget the baluns altogether.

best wishes,

dave belsley, w1euy

--On Thursday, August 7, 2003 10:02 AM -0700 Jack Shrawder 
<[email protected]> wrote:

> I'm in the process of gathering materials for a 1.5 to 2.0 wavelength
> 80-meter, horizontal loop for my K2-100. The articles that I have read
> leave me confused on one issue--well probably more than one--but is it
> necessary or desirable to place a balun  1:1 or 4:1 or even 9:1 at the
> juncture of the RG8 from the K2-100 to the point where the 450 ohm ladder
> line begins?
>
> The ladder line will terminate at a corner of the proposed loop?  Some
> older QST articles just say feed the loop with 50 ohm coax and let the
> antenna tuner take care of any mismatch. Other sources recommend a balun
> but seem to think even a 1:1 ratio is OK. Wouldn't a 9:1 balun be ideal
> to match the 50 coax to the 450 ladder line? I'd like to optimize the
> system for best signal.
>
> Any recommendations would be appreciated.
>
> 73 and thanks,
>
> Jack
>
> Jack H. Shrawder, KT6JS
> Publisher Teaching For Success
> South Lake Tahoe, CA
> A+ Faculty Development
> ?Success Is Our Only Option? David Borges DC.
>
>
>
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----------------------------------
David A. Belsley
Professor of Economics