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Optimal calibration method for 4 Port NA and 16 Port Extension

Question asked by jcraigle on Jan 13, 2020
Latest reply on Jan 18, 2020 by Dr_joel

In our lab we use an N5222A PNA coupled with a U3042A 16 Port Test Set Extension for our network measurements. This 20 port calibration takes a significant amount of time at the moment and due to the nature of the DUT connections and temperature cycling, we often have to replace cables as we move through our weekly cal cycles. Our technicians are expressing a lot of frustration with the fact that our current methods require that they re-calibrate all 20 ports whenever they have to change even a single cable. Is there any functionality or cal data storage method that would allow for us to change a single cable on our test set extension and 'update' the calibration with this newly changed cable?