> "Hi Paul, I think you are confusing impedance and resistance here. There is
> an infinite number of resistance and reactance combinations that will equal
> 50 ohms impedance but the only ones with low vswr are the ones at or near 50
> +j0."
No confusion. To achieve that 50 +j0 result at the source end of a 1/8-wave
line still requires a 50 +j0 termination. However, no matter what is happening
on the load end of the line and as long as it's resistive only, results in a
constant impedance of 50-ohms at the source end with a low resistance component
and wildly varying amounts of reactance between shorted and open extremes. But
if (and a big "if") a transmitter's output network could efficiently couple
into that complex Z seen at the source end of the 1/8-wave line, the result is
a dummy load with super-high return loss.
Paul, W9AC
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