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PNA N3383A fixturing macro - where is 3rd port?

Question asked by mirek on Oct 20, 2014
Latest reply on Oct 25, 2014 by Dr_joel
I am trying to measure transformer on PNA N3383A so I need to apply impedance conversion (with port extension). For that I need to use featuring macro. The problem is that old firmware for PNA N3383A had macro (version 1.02) that did support 3 port. With the latest available firmware (4.87) the featuring macro (version 2.52) the third port is blank.
I assume that the macro 2.52 have some bug fixing, why the third port was disable? 
Any solution?