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#5
February 13th 06, 02:32 PM
posted to rec.radio.amateur.antenna
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diff in coils between c_poise and vertload ??
On Mon, 13 Feb 2006 13:41:24 GMT, "Frank"
wrote: NEC indicates the coil is 123 uH, and a Q of 4471 at 3.8 MHz. You would certainly have to silver plate the coil in order to maintain such a Q. The formation of copper oxide will cause Q degradation over time -- despite what some people seem to think. It is not just what "some people" think. Check out: http://k6mhe.com/n7ws/Plating.pdf 73, Danny, K6MHE email: k6mheatarrldotnet http://www.k6mhe.com/ |
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