Technical data
8-8 Service Guide N5230-90025
General Purpose Maintenance Procedures PNA Series Microwave Network Analyzers
Error Terms N5230C
Accessing Error Terms
Error terms can be accessed either manually or programmatically: 
Manually
• “Front Panel Access to Error Terms” on page 8-8
Programmatically
• “GPIB Access to Error Terms” on page 8-9
• “COM/DCOM Access to Error Terms” on page 8-9
Manual Access to Error Terms
Front Panel Access to Error Terms
NOTE Ensure the calibration correction is active by making sure that Correction on/OFF has a 
check-mark in the Calibration menu.
To access the error terms from the front panel, perform the following steps:
1. In the 
System menu, point to Service, Utilities, and then click Cal Set Viewer.
The 
Cal Set Viewer toolbar appears directly above the trace window.
2. In the 
Cal Set list, select the desired cal set.
3. Click the 
Standards/ETerms button to toggle between viewing the raw measurement data from the 
standard or the corrected error term data. Note that the title of the center box in the tool bar will toggle 
between 
Standard and Error Term.
4. In the 
Standard or Error Term list, select the standard or error term to view. Click the View check box.
5. Compare the displayed measurement trace to the equivalent data trace plots that start in “Error Term 
Data” on page 8-10, to previously measured data, or to the uncorrected performance specifications listed 
in Table 8-1 on page 8-10.
6. Print numerical data or print a plot of the measurement results.










