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Old March 1st 07, 01:26 PM posted to rec.radio.amateur.antenna
Cecil Moore Cecil Moore is offline
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First recorded activity by RadioBanter: Jul 2006
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Default tuner - feedline - antenna question ?

Jeff wrote:
rho = (Z0-Zload)/(Z0+Zload)

SWR = (1+rho)/(1-rho)


Your application of the above equations neglects the first discontinuity.


The first discontinuity (inside the source) doesn't
have any effect on the SWR on the transmission line.
Tuners at the source present another discontinuity
and have no effect on transmission line SWR.
--
73, Cecil http://www.w5dxp.com