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
System
• For 2-port analyzer models, traces A, B, R1, and R2 are displayed in four separate data windows as
shown in
Figure
4-7. Identifying discrepancies of the traces in these windows can help you to isolate the
faulty assembly.
Figure 4-7
Typical 4-Receiver Display for 2-Port Models
4-26
Service
Utilities
, then
, then
PNA Series Microwave Network Analyzers
Receiver Display
, then
Service Guide N5227-90001
N5227A
.