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Bilinear Transform Measurement Accuracy Question

Question asked by SOLT_guy on Sep 25, 2011
I own an Agilent 8753C NA.

I looked at my NA calibration algorithm and I wanted to verify whether the a,b,c coefficients associated with the bilinear transform have any effect upon NA measurement accuracy - in and of itself.  In other words, for a one port calibration, if Edf, Esf, and the Erf terms have all been obtained, does knowledge of the a,b,c, bilinear transform coefficients contribute to measurement accuracy?

Can you please tell me whether knowledge associated with these coefficients affects measurement accuracy at all?

Or, Is the use of the bilinear transform primarily only an aid in creating a user friendly graph?