Verifying The A, B, C, D, And R Traces (Standard S-Parameter Mode) - Keysight Technologies N5224/5A Service Manual

Troubleshooting
Measurement System Troubleshooting

Verifying the A, B, C, D, and R Traces (Standard S-Parameter Mode)

The first step is to verify that the A, B,C, D, and R traces are present and that
they are approximately level:
— Connect an Open or Short standard from a mechanical calibration kit to
each test port (use adapters if necessary).
— Press UTILITY
Receiver Display
— For 2-port analyzer models, traces A, B, R1, and R2 are displayed in four
separate data windows as shown in
the traces in these windows can help you to isolate the faulty assembly.
Figure 4-7 Typical 4-Receiver Display for 2-Port Models
— For 4-port analyzer models, traces A, B, C, D, and R1, R2, R3, and R4 are
displayed in eight separate data windows as shown in
Identifying discrepancies of the traces in these windows can help you to
isolate the faulty assembly.
4-28
Service
, then
System
.
Figure
Keysight N5224A/25A Service Guide
Utilities
, then , then
4-7. Identifying discrepancies of
Figure 4-8.