Keysight x-series User Manual

4 System
4.6 Alignments
While Align Now Expired is performing the alignment, the Calibrating bit (Bit 0 in the Status Operation
register) is set. Completion, or termination, clears Bit 0 in the Status Operation register
This command is sequential; that is, it must complete before further SCPI commands are processed.
Interrupting the alignment from remote is accomplished by invoking Device Clear followed by :ABORt
Successful completion clears bit 14 in the Status Questionable Calibration register
An interfering user signal is not grounds for failure of Align Now Expired. However, if RF Alignment was
required, Bits 11 and 12 are set in the Status Questionable Calibration register to indicate Align Now,
RF is required
Status Bits/OPC
dependencies
Bits 11, 12, or 14 may be set in the Status Questionable Calibration register
4.6.2.5 Align Now Preselector
Normally, Preselector Alignment runs during power up, and during the twenty
minutes after power up, whenever there is a 1-degree internal temperature change.
This alignment is also run when an "Align Now All" on page 2110 is performed. This
feature is helpful during the 20-minute warm-up time to correct for preselector drift
while alignments are being held off. This feature can also be used in lieu of using the
Preselector Center functionality, to improve speed throughput for remote testing
with minimal impact to amplitude accuracy specs. The algorithm centers the
preselector at the upper and lower operating frequencies of the YTF preselector.
The Align Now Preselector alignment is not a substitute for the Characterizer
Preselector Advanced Alignment, which creates the default preselector centering
curves for the YTF Preselector and is typically run annually.
Remote
Command
:CALibration:PRESelector
:CALibration:PRESelector?
Example
:CAL:PRES
Notes Returns 0 if successful, or 1 if failed (including interfering user signal)
While Align Now Preselector is performing the alignment, Bit 0 in the Status Operation register is set.
Completion, or termination, clears Bit 0 in the Status Operation register
This command is sequential; that is, it must complete before further SCPI commands are processed.
Interrupting the alignment from remote is accomplished by invoking Device Clear followed by
:ABORt
Successful completion clears the Error Conditions “Align Preselector failed” and clears Bit 3 in the
Status Questionable Calibration Failure (Extended) register
A failure encountered during alignment generates the Error Condition message “Align Preselector
failed” and sets Bit 3 in the Status Questionable Calibration Failure (Extended) register
Status Bits/OPC
dependencies
Bit 3 may be set in the Status Questionable Calibration Failure (Extended) register
Spectrum Analyzer Mode User's &Programmer's Reference 2116

Keysight x-series Specifications

General

Analysis Bandwidth	Up to 1 GHz (depending on model)
Real-Time Bandwidth	Up to 1 GHz (depending on model)
Form Factor	Benchtop
Connectivity	LAN, USB, GPIB
Resolution Bandwidth	1 Hz to 10 MHz (depending on model)