Setup > Test Port Impedance - Agilent Technologies N4413A User Manual

Menu Reference
Setup Menu
Setup > Test Port Impedance...
Pull down Setup > Test Port Impedance... to open the Port Impedance dialog box and set
reference impedances.
By default all four ports are set to 50Ω impedance. Enter new reference impedances in the
port boxes as desired.
This feature does not affect the impedance presented to the DUT by the system hardware.
Rather, it mathematically transforms the measured data to show how the performance of a
linear device would change in a non-50Ω measurement system. Impedance transforms can be
specified either before or after measurement. Only the current data set is affected.
The reference impedance can be specified as resistive, or as an RL or RC circuit. The
impedance model is used to specify whether the selected impedance is the effective
source/load impedance, or whether it is an estimate of the DUT port impedance. One is the
complex conjugate of the other.
Scroll through the Recent Configs box to select a configuration from one of the last ten
reference impedance configurations.
Click Set All Ports to 50 ohms to return to the default configuration.
Click OK to accept the configuration and exit the dialog box.
Click Cancel to ignore any changes and exit the dialog box.
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