Verifying The A, B, C, D, And R Traces (Standard S-Parameter Mode) - Agilent Technologies N5242A Service Manual

PNA Series Microwave Network Analyzers
N5242A

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

There is no way to view the frequency offset receiver response (Option 080).
NOTE
However, some standard S-parameter receiver trace information is helpful in
troubleshooting the frequency offset section of the PNA. It is therefore
recommended that you run this test even if you suspect only the frequency
offset section of a malfunction.
The first step is to verify that the A, B,C, D, and R traces are present and that they are
approximately level:
• Press UTILITY
System
• For 2-port analyzer models, traces A, B, R1, and R2 are displayed in four separate data
windows as shown in
windows can help you to isolate the faulty assembly.
Figure 4-6 Typical 4-Channel Display for 2-Port Models
Service Guide N5242-90001
, then Service , then
Figure 4-6. Identifying discrepancies of the traces in these
Measurement System Troubleshooting
Utilities , then Receiver Display
Troubleshooting
.
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