dansawyeror wrote:
I am dealing only with the open circuit case and trying to determine the
reflection angle of the reflected signal at the source. In those cases
the angle was always zero.

If you are trying to make real-world measurements, a true
short-circuit (~zero) is actually easier to implement than
a true open-circuit (~infinity)
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73, Cecil http://www.qsl.net/w5dxp