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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