Hello, I have PNAX N5245A with N4693A and 11901 adapters. I am able to perform a user characterization and save that to the Ecal. I am only changing the connectors from 2.4mm to 3.5mm by using the 11901. When I try to perform a calibration selecting the User Characterization, I get the following error message: Message: 541 "Electronic Cal: Unable to orient ECal module. Please ensure the module is connected to the necessary measurement ports." My port power is -10dBm, I am using the Agilent black cables 85133F, so that should not be a problem of losing too much power. I am able to perform a factory calibration with the Ecal with the exact same setup but just selecting the factory cal. I have firmware revision 9.31.01. Any information is greatly appreciated.