Re: Re: KAT100 with Ladder Line
Posted by
Joe-aa4nn on
Nov 17, 2007; 3:18pm
URL: http://elecraft.85.s1.nabble.com/K2-s-n-4276-Output-Power-Instability-tp366380p366397.html
The tedious part of making your own ladder line is to keep the
spacing uniform. Spacing is very critical for closely spaced wires
like for 450 ohm or so; whereas, wider spacing like 6 inches
for 600 ohm using #12 wire is quite a bit more forgiving. Some
good information about open wire is at:
http://www.cebik.com/trans/par.html
http://www.cebik.com/gup/gup31.html
For spacers, consider using lexan strips 1 inch wide by 6.5
inches long. Place the wire on center at one end and heat
it with a soldering gun until the wire melts 1/4 inch into the
lexan. Messy but maybe quicker than drilling 1000 holes.
de Joe, aa4nn
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