4 System
4.6 Alignments
The “Align 20 Hz to 30 MHz required” Error Condition will appear when this
alignment has expired. User is now responsible to perform the Align Now, 20 Hz to
30 MHz to keep the receiver in warranted operation. This alignment can only be
performed by user as it is not part of the Auto Align process.
Remote Command
:CALibration:RFPSelector:CONDucted
:CALibration:RFPSelector:CONDucted?
Example
:CAL:RFPS:COND
Notes The query returns 0 if successful, or 1 if failed
When Align 20 Hz to 30 MHz 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 1 in the Status Questionable Calibration
Extended Needed register and bit 0 in Status Questionable Calibration Extended Failure register
A failure encountered during alignment will set the Error Condition “20 Hz to 30 MHz Alignment
Failure” and set both bit 1 in the Status Questionable Calibration Extended Needed register and bit 9
in Status Questionable Calibration register
Dependencies Does not appear in non-RF Preselector models, setting or querying the SCPI will generate an error
Couplings Initializes the time for the Last Align Conducted Now, Conducted Time
Records the temperature for the Last Align Conducted Now, Conducted Temperature
State Saved No
Status Bits/OPC
dependencies
Bit 8 or 9 may be set in the Status Questionable Calibration register
Bit 1 may be set in the Status Questionable Calibration Extended Needed register
Bit 0 may be set in the Status Questionable Calibration Extended Failure register
Align Now, 30 MHz to 3.6 GHz
Immediately executes an alignment of the receiver subsystem. The receiver will stop
any measurement currently underway, perform an Align Now All, then perform the
RF Preselector alignment, and then restart the measurement from the beginning
(similar to pressing the Restart key).
The query (:CALibration:RFPSelector:RADiated?) invokes the alignment of
the RF Preselector on Radiated Band and returns a success or failure value.
Successful completion clears the “Align 30 MHz to 3.6 GHz required” Error
Condition, and clears bit 2 in the Status Questionable Calibration Extended Needed
register. The elapsed time counter begins for Last Align Now, Radiated Time, and
the temperature is captured for the Last Align Now, Radiated Temperature. The
alignment can be interrupted by pressing the Cancel (ESC) front-panel key, or
remotely with Device Clear followed by :ABORt. When this occurs, the Error
Condition “Align 30 MHz to 3.6 GHz required” is set, because new alignment data
may be employed for an individual subsystem, but not a cohesive set of data for all
subsystems.
1963 Vector Modulation Analyzer Mode User's &Programmer's Reference
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