[Elecraft] Tuning 88' with KX1 autotuner?
Vic Rosenthal
vic at rakefet.com
Mon Feb 21 01:06:07 EST 2005
Rick Dettinger wrote:
> I could probably get the SWR
> on 40 meters down by changing the feed line length. Of course, this would
> change the other bands.
Easier than trimming (and maybe lengthening!) window line is the following:
wrap a piece of aluminum foil about 1 foot (30 cm) wide around the ladder line.
Slide it around on the line until you find a place where all the bands are
within matching range. You can use more than one piece of foil if it helps.
You have made a capacitor whose effect on the impedance will be greater as you
approach a voltage loop for a particular band. I have done this successfully
with a few hundred watts -- it probably would not be good for very QRO
situations where the voltage loops can reach thousands of volts, but it should
be safe for your KX1 :-)
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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