I had a lot of trouble tuning 10m once with a C4XL (and changing element
length was really bizarre - small changes act as expected, but at some
point there would be a big jump to a wildly different resonance), they
after taking it down to replace cable on crankup tower it was fine. I
THINK the problem is that the drive cell is really sensitive to spacing
and parallelism between the elements. If so, then it means loosening
the U-bolts and shifting element position.|
Seriously, has anyone had difficulty with their 3 band matching system, operating on 15m? There is a C4XL which we finally gave up on after two years and put in three separate feedlines. Then, we gave up on that and replaced it with an optibeam. Works great.
At V26DX, there's a C3 with a 40m kit on it....well, it HAD one. It never tuned, either, and we finally gave up on it. Seemed to tune ok on 20-10, and had
Darrel J. Van Buer, AK6I
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA.
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