Agilent Technologies X Series Manual page 184

System Functions
System
Characterize Preselector
YIG-tuned filter (YTF). The instrument stops any measurement currently underway, performs the
characterization, then restarts the measurement from the beginning (similar to pressing the
The query form of the remote commands (:CALibration:YTF?) will invoke the alignment of the YTF
subsystem and return a success or failure value.
A failure encountered during alignment will generate the Error Condition message "Characterize
Preselector failure" and set bit 3 in the STATus:QUEStionable:CALibration:EXTended:FAILure status
register. Successful completion of
the elapsed time counter for Last Characterize Preselector Time, and capture the Last Characterize
Preselector Temperature.
The last Characterize Preselector Time and Temperature survives across the power cycle as this
operation is performed infrequently.
Characterize Preselector
NOTE
front-panel key or remotely with Device Clear followed by the :ABORt SCPI
command. None of the new characterization data is then used. However, since
the old characterization data is purged at the beginning of the characterization, you
now have an uncharacterized preselctor. You should re-execute this function and
allow it to finish before making any further preselected measurements.
Key Path
Mode
Remote Command
Example
Notes
184
immediately executes a characterization of the Preselector, which is a
Characterize Preselector
can be interrupted by pressing the Cancel (ESC)
System, Alignments, Advanced
All
:CALibration:YTF
:CALibration:YTF?
:CAL:YTF
:CALibration:YTF? returns 0 if successful
:CALibration:YTF? returns 1 if failed (including interfering user signal)
While Advanced, Characterize Preselector is performing the alignment, bit 0
in the Status Operation register is set. Completion, or termination, will clear
bit 0 in the Status Operation register.
This command is sequential; it must complete before further SCPI commands
are processed. Interrupting the alignment from remote is accomplished by
invoking Device Clear followed by the :ABORt command.
Successful completion will clear bit 9 in the Status Questionable Calibration
register.
A failure encountered during alignment will generate the Error Condition
message "Characterize Preselector failed" and set bit 9 in the Status
Questionable Calibration register.
For Option 507, 508, 513, and 526 only.
will clear this Condition. It will also begin
Restart key).