Timebase - Keysight N9000A Service Manual

Service and Diagnostics Menus
Service Key Descriptions

Timebase

Allows the technician to adjust the 10 MHz reference ("timebase") manually.
If the Timebase DAC value has been changed, but no Save operation performed
NOTE
before exiting this menu, a warning is provided to the user that they have not saved
their setting:
Timebase DAC
Allows the technician the ability to adjust the 10 MHz reference ("timebase"). The
adjustment is performed by changing the DAC setting controlling the reference.
Once the reference is adjusted to the proper frequency, the DAC value can be
saved in non-volatile memory by pressing the Save menu key.
Save
Saves the current Timebase DAC setting in the appropriate cal file. The operator is
presented a prompt to confirm the operation:
Chapter 11 193