Re: Tuner for balanced line

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From: Randy Hargenrader (randyh@harksystems.com)
Date: Sun Mar 30 1997 - 09:59:14 EST


>
> >I once read of a really cool idea to use a single-ended tuner on on
> >balanced line:
> >Ground the rig.
> >Don't ground the tuner.
> >Install a bead balun between the rig and the tuner. These are the ones
> >made by stringing multiple toroids over a piece of coax.
> >The idea being that, coming off a balanced feed, half of your returned RF
> >would love to visit you via the ground. Because of the choke bead balun,
> >it can't...>
> ... In other words, let the tuner float at some rf potential and do its
> job.
>

I use this setup with the OCFdipole (fed w/450 ohm ladder line) at this QTH.
Works great even at QRO(100 watts). I highly endorse this arrangement over a
wound balun transformer. Antenna loads nicely on all bands.

-- 
73, Randy WJ4P
QRP-L #296  ARCI #9152  1996 40-9er High Scorer


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