Agilent Technologies PNA Series Service Manual page 126

Troubleshooting
Measurement System Troubleshooting
4. For each frequency band in which problems were seen: Set the network analyzer to each
of the frequencies indicated in the
column in Table 4-8 on page
5. Set the spectrum analyzer to measure each of the corresponding frequencies in the
column labeled: "Expected A17 Output Frequency (GHz)"
6. If the signals are <−30 dBm or not present, replace the A17 LOMA 12. Refer to
"Removing and Replacing the A17 LOMA 12" on page
7. If the signals are present, reconnect cable W19, and then continue with
A18 MA 24 Output" on page
4-46
"Network Analyzer Source Frequency Setting (GHz)"
4-47.
4-48.
PNA Series Microwave Network Analyzers
in Table 4-8 on page
7-32.
"Checking the
Service Guide E8361-90001
E8361A
4-47.