[Elecraft] KAT 500 and open wire

[David Woolley]

The feedpoint impedance DOES depend on the characteristic impedance!

Taking pure resistive cases (real characteristic impedances aren't), and 
lossless lines, a 75 ohm load at the end of a 75 ohm transmission line 
will have a feed point impedance that is a constant 75 ohms, whereas a 
75 ohm load on 300 ohm feeder will have a feed point impedance that 
swings from 75 to 1200 ohms.

-- 
David Woolley
Owner K2 06123

On 06/01/2019 21:40, Don Wilhelm wrote:
> The feedpoint impedance to the transmission line can vary from quite low 
> to quite high dependent on the frequency, the length of line, and the 
> load at the far end.  It does NOT depend on the characteristic impedance 
> of the transmission line.