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Meaning of S21 in O/O measurements

Question asked by sharaf0 on Jan 18, 2015
Latest reply on Jan 20, 2015 by mkelly

Hello

I have N4375B LCA with N4252A PNA-X Network Analyzer

I want to verify that the test set is working properly so I am
just measuring the parameters of patch chords and fixed attenuators
but I keep getting wrong results

My questions are

1- What are the calibration steps for right measurement?

2- What are the expected parameters to be measured?

3- What is the meaning of S21 in the case of O/O measurements?

Thanks in advance

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