236 N9030B PXA Signal Analyzer Service Guide
Analog/Digital IF Troubleshooting
A2 Analog IF Troubleshooting
4. The analyzer marker should read 300 MHz at 10 dBm ± 3 dB as shown in
Figure 7-6.
Figure 7-6 300 MHz LO
5. If the 300 MHz signal is not measuring the correct power level, see the
A16 Reference Assembly troubleshooting section in this service guide.
6. If the 300 MHz LO is measuring the correct power level and frequency and
the 22.5 MHz signal is low, the most probable cause is the A2 Analog IF
assembly.