Measurement Group Troubleshooting - Keysight N9912A Service Manual

Troubleshooting

Measurement Group Troubleshooting

Measurement Group Troubleshooting
If calibration with the standard Type-N cal kit (1250-3607 or N9910X-800) gives unexpected results:
• Make sure the unit is warmed up for at least 30 minutes.
• Make sure the correct cal kit definition is being used; erase user data to force use of factory cal kit
definitions (see Chapter 8
If there appears to be LAN communication problems:
• Use only 100 Base T LAN connections. Sometimes there are problems with the slower speed 10 Base T
connections.
If "ADC Overload" error messages are displayed during S21 or insertion loss measurements:
• Perform the "ADC Overload Adjustment" under
Chapter 3.
4-8
for information on the "Erase User Data
"Adjustments (Keysight N7841A Software Package)"
Utility").
Service Guide N9912-90003
RF Analyzer
N9912A
in