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E5071C Problem With S21 & S12

Question asked by scotsman on Jun 9, 2011
Latest reply on Jun 13, 2011 by scotsman

We have an issue with our E5071C Microwave Analyzer.

 

Basically we're connecting a cable from Port A to Port B and monitoring the results.

 

S21 and S12 are showing strange results.

 

S11:
Image

 

S21:
Image

 

S12:
Image

 

S22:
Image

 

Anyone know what the problem could be here? We've tried 2 different cables, but both give the same reading.

 

We have an N4961-60006 Ecal module, but when we try to do an Ecal of any kind we get error "Ecal module not in appropriate RF path"...even though the Analyser sees it ok.  

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