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Using TDR Gating to measure S11 of connector on open ended cable

Question asked by dweinstein on May 11, 2015
What parameters are most important when measuring a gated response of a connector on an open ended cable?  I realize that the low frequency response will look poor, but as frequency increases, I can see that sometimes it really doesn't matter much if the cable is terminated or not.  Theoretically, you should be able to gate out the open but there are times when the gated frequency domain response of the open cable is much different from the terminated cable measurement.