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Sounds right to me, the 50 ohm load of the ant is "reflected" back by a
1/2 wave line... .... so, I am probably wrong... grin Warmest regards, John wrote in message ups.com... Fred W4JLE wrote: Assuming I have an antenna that is perfect on 3.8 MHz. Perfect being defined, as I am feeding it with exactly 1/2 electrical wave length of 50 Ohm feedline and it is 1:1 SWR measured at the source end. What would the SWR be if I substituted the 50 Ohm feedline with a 1/2 wavelength of 72 Ohm feedline? The head of the pin is now open for dancing... Hi Fred, It would still be 1:1. Doesnt matter about the characteristic impedance of the transmission line as long as you use 1/2 electrical wavelength. Gary N4AST |
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