"If the swr is not 1:1 then the feed line won't be 50 ohms"
correct. reflection from an unmatched antenna load creates standing waves up and down the line and 50 ohms is no longer present at every point along the line.
"Because the reactance of the feed line circuit in total will change the overall impedance of the feed line. Do I have that right?"
reactance is a non-resonant component (with regard to operating frequency) of the antenna load. this reactance will also be present along the feedline.
"the input impedance is what we are talking about. Now I am thinking about the output impedance, because it could be different?
the input impedance looking toward the antenna load from the transmitter/source end of the line is what we need to be concerned about, especially with 50 ohm only solid state transmitters.
correct. reflection from an unmatched antenna load creates standing waves up and down the line and 50 ohms is no longer present at every point along the line.
"Because the reactance of the feed line circuit in total will change the overall impedance of the feed line. Do I have that right?"
reactance is a non-resonant component (with regard to operating frequency) of the antenna load. this reactance will also be present along the feedline.
"the input impedance is what we are talking about. Now I am thinking about the output impedance, because it could be different?
the input impedance looking toward the antenna load from the transmitter/source end of the line is what we need to be concerned about, especially with 50 ohm only solid state transmitters.
