![](/images/new-backgrounds/1223434/223434219x1.webp)
Measuring Multiport Devices
Calibrating the Test System
Calibrating the Test System
After the test set has warmed up for at least two hours, you must calibrate the instrument before making any measurements. To determine the type of calibration appropriate for the measurements you will be making, refer to the PNA Series Network Analyzers User Guide, part number
You will need to calibrate each measurement path separately and store the calibration as an instrument state in the network analyzer. For information on how to calibrate and store instrument states, refer to the PNA Series Network Analyzers User Guide, part number
In the example setup shown in Figure
•Return loss on the DUT's input and 2 output ports (A and B)
•Insertion loss (or gain) between the DUT's input and port A
•Insertion loss (or gain) between the DUT's input and port B
6 | Agilent Technologies Z5623A Option H48 |