I began work on shunt loading my tower for 80 and/or 160. The initial
reading on my MFJ 259 showed that the antenna was too short, and it
needed a coil in series to get X=0. I went to a plumbing shop and found
solid #12 insulated wire, wrapped it around some 4-inch diameter PVC
pipe, and lo and behold, I am in the ballpark.
My question is: I intend to re-wrap the wire so it is neat, but what
kind of problems should I expect from this kluge coil? I tried moving
the turns around, with the ends fixed in place, and there is almost no
change in X on the 259. Am I looking at low efficiency, potential
arcing, other problems associated with such a cavalier method of
creating a coil?
Antennaware mailing list