That is an effective but sometimes inconvenient way to handle an antenna
and feedline that gets the feed Z out of the range of the tuner, a
significant problem with the limited range of the Johnson Matchbox.
73, Jerry, K0CQ
On 2/13/2011 7:49 PM, Ken Brown wrote:
> I have a center fed dipole, fed with 450 ohm ladder line. I built it to
> the dimensions that were convenient, without much regard to how the
> dimensions relate to a wavelength on any particular band. On the bands
> that my Johnson KW Matchbox can tune it, with the shortest length of
> ladder line from the feed through the wall to the Matchbox, I operate it
> that way. On the bands that it cannot tune it that way, I add lengths of
> ladder line, until I find a length that allows the Matchbox to tune it.
>
> Not quite as convenient as if only changes in the tuner knobs were
> needed to change bands. It works though.
>
> DE N6KB
>
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