David Robbins wrote:

"Cecil Moore" wrote:
Does (R+jXL)/(G+jXC) really equal 2500 for RG-174 on 12m? The specs
say the Z0 of RG-174 is a nominal 50 ohms.

of course its not exactly 2500, otherwise there would be no loss. but its
close, maybe 2500+j10 or something like that. and even the resistive part
may not be exact, the nominal 50 ohms could be 45 to 55 depending on the
tolerances of the manufacturer.

Comparing the 6dB loss of RG-174 to the 0.14 dB loss for hardline -
is all that extra loss accounted for in the +j10 term?
--
73, Cecil http://www.qsl.net/w5dxp



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