"H. Adam Stevens" wrote:
How to measure source impedance.
Connect an adjustable load directly to the source, forget the transmission
line.
When the load gets hottest for the least power into the source, their
impedances are matched.

Unless of course that shuts down, or even destroys, the source
device in the process.

--
Floyd L. Davidson http://web.newsguy.com/floyd_davidson
Ukpeagvik (Barrow, Alaska)