Agilent Technologies N8201A Service Manual Page 489

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System 24
Agilent N8201A Performance Downconverter Synthetic Instrument Module, 250 kHz to 26.5 GHz 489
Annunciation/Annotation: Displays a series of pop-up message boxes explaining what
is being aligned (a subset of the Align All Now message boxes).
Remote Command:
:CALibration:GAIN:ADIGitizer
:CALibration:GAIN:ADIGitizer?
Remote Command Notes: The query performs the alignment and returns a zero if the
alignment is successful.
Example: CAL:GAIN:ADIG?
Restore Align Defaults
Loads the default values for the alignment system, turns on the frequency corrections, and
resets the timebase to the factory values. Align All Now must be executed 3 times after
pressing Restore Align Defaults to meet specifications.
Key Path: System, Alignments
Annunciation/Annotation: System Alignments, Align Now All required.
SCPI Status Bits/OPC Dependencies: Status questionable calibration Bit 14 will be
set.
Remote Command:
:CALibration:DATA:DEFault
Example:
CAL:DATA:DEF
Select Time Corrections (Remote Command Only)
Controls time corrections used to compensate for the complex (magnitude and phase)
response of the analog and digital IF hardware. When only scalar (magnitude) FFT flatness
is required, time corrections take more CPU cycles and so are less efficient than frequency
corrections. For demod or other time-based (not FFT) measurements, only time corrections
can improve the flatness that results from imperfect IF hardware. When the time correction
functionality is set to Auto (the default), the individual measurements activate the
corrections when they are needed.
Turning time corrections on or off affects all measurements. Time corrections should be left
in Auto unless you have specific reasons for forcing them on or off.
Factory Preset: Auto
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