Agilent Technologies Signal Analyzer N9030a - Manual (Page 1290)

6 RLC Swept SA Measurement Front-Panel & SCPI Reference
System
Remote Command :CALibration:DATA:RESTore <filename>
Example :CAL:DATA:REST "F:\ AlignDataBackup_N9020A_US00000001_2008140100.bak "
Initial S/W Revision A.02.00
Advanced
Accesses alignment processes that are immediate action operations that perform operations that
run until complete. Advanced alignments are performed on an irregular basis, or require
additional operator interaction
Key Path System, Alignments
Initial S/W Revision Prior to A.02.00
Characterize Preselector
The Preselector tuning curve drifts over temperature and time. Recognize that the Amplitude,
Presel Center function adjusts the preselector for accurate amplitude measurements at an
individual frequency. Characterize Preselector improves the amplitude accuracy by ensuring the
Preselector is approximately centered at all frequencies without the use of the Amplitude, Presel
Center function. Characterize Preselector can be useful in situations where absolute amplitude
accuracy is not of utmost importance, and the throughput savings or convenience of not
performing a Presel Center is desired. Presel Center is required prior to any measurement for best
(and warranted) amplitude accuracy.
Agilent recommends that the Characterize Preselector operation be performed yearly as part of
any calibration, but performing this operation every three months can be worthwhile.
Characterize Preselector immediately executes a characterization of the Preselector, which is a
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
Restart key).
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 Characterize Preselector will clear this Condition. It will
also begin the elapsed time counter for Last Characterize Preselector Time, and capture the Last
Characterize Preselector Temperature.
1290 Remote Language Compatibility Measurement Application Reference