Agilent Technologies N5241A, Service Manual

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Service Guide N5242-90001 4-25
PNA Series Microwave Network Analyzers Troubleshooting
N5241A/42A 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 , then , then , then .
• For 2-port analyzer models, traces A, B, R1, and R2 are displayed in four separate data
windows as shown in Figure 4-6 . Identifying discrepancies of the traces in these
windows can help you to isolate the faulty assembly.
Figure 4-6 Typical 4-Receiver Display for 2-Port Models
System
Service Utilities Receiver Display