To directly answer you final question, SWR is the same throughout the length of a transmission line.
Losses in the transmission line will make the SWR higher toward the antenna end, but usually not by much.
I say this because the outgoing power will be slightly weaker at the antenna end than at its source
from the antenna tuner, the reflection back from the antenna feedpoint will be slightly stronger at the antenna end.
Jerry, KE7ER
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On Wed, Aug 19, 2020 at 07:54 AM, Miro, N9LR wrote:
Asked differently, if SWR is low at one end, does it mean it's low on the
other end as well (again, lossless components used!)
