For lossless coax, it would be purely reactive, close to +jZ0. Questions
like that are easy when one understands the Smith Chart.
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73, Cecil

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They are even easier WITHOUT the unessessary over-complication of the chart.

A student's valuable time is much better spent learning about transmissiom
lines instead of how to use an antique chart. The answer can be worked out
in the head in less than a second. Tan(45) = 1.0000000 and therefore X =
Zo.

Sorry to hear about your pH problem. Isn't there an ant-acid preparation
available in this modern day and age?

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Reg, G4FGQ