Keysight N9038A MXE Service Guide 351
Analog & Digital IF
A3 Digital I.F. Troubleshooting
Figure 10-18 A3 Digital IF Noise Source Output
Smart Noise Source Interface
(Optional N9069A software required)
1. Disconnect anything that might be connected to the Smart Noise Source
connector, as illustrated in Figure 10-13.
2. Switch the instrument into the Noise Figure measurement personality by
pressing Mode, Noise Figure.
3. Reset the Noise Figure mode to its default settings by pressing Mode
Setup, Restore Mode Defaults.
4. Verify that there is no Smart Noise Model or Serial Number in the
instrument by pressing Meas Setup, ENR, Meas Table. The Serial # and
Model ID softkey labels should be blank.
5. Verify that the current ENR Meas Table is blank by pressing Meas Setup,
ENR, Meas Table, Edit.
This output will only operate when the optional N9069A Noise Figure measurement personality
is installed in the instrument.
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