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Chapter 5 225
Language Reference
CALibration Subsystem
Remarks: You must be in the Service mode to use this command.
Use INSTrument:SELect.
A valid service password needs to be entered prior to
sending this command.
Front Panel
Access:
System, Alignments, Align subsystem, Align 50 MHz
Reference
Query the ALC DAC Value for the 50 MHz Amplitude Reference
:CALibration:REF50:LAST:ALCDac?
Query returns the last value of the ALC DAC of the 50 MHz reference
alignment.
Remarks: You must be in the Service mode to use this command.
Use INSTrument:SELect.
A valid service password needs to be entered prior to
sending this command.
Front Panel
Access:
System, Alignments, Align subsystem, Align 50 MHz
Reference
Select Time Corrections
:CALibration:TCORrections AUTO|ON|OFF
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.
Remarks: Turning time corrections on or off effects all
measurements. Time corrections should be left in Auto
unless you have specific reasons for forcing them on or
off. Always return time corrections to Auto.
Factory Preset
and *RST: AUTO
Front Panel
Access:
System, Alignments, Time Corr