kce wrote:
This past weekend I was loading up a amp into a OCF dipole fed through a 4:1
balun with 9913 belden cable. When I hit the 800 watt mark a big spark, so I
figure ok the 4:1 went west on me. I change out the balun try again same
results. I change out the feedline to rg/213 no problem. I check over the
9913 and find a fair sized arc hole in the cable about 15 feet below the
antenna.
9913 has a conductor spaced from the shield with little beads, whereas
213 has solid polyethylene dielectric. It's possible that a sharp bend
in 9913 might bring the center conductor close to the shield. Did the
arc occur near a bend in the cable?
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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