5 System Functions
System
3):STATus:QUEStionable:CALibration:CONDition? ( to check if there are any errors/failures in
previous calibration procedure)
Initial S/W Revision
X.14.20
RF (Weekly use)
Immediately executes an alignment of the RF subsystem which includes both the source and the analyzer
in the TRX module . The instrument stops any measurement currently underway, performs the alignment,
then restarts the measurement from the beginning (similar to pressing the Restart key).
This alignment corrects slow-rate drift which does not impair specifications for time periods shorter than
one week. Thus, it is required to perform this alignment on a weekly basis to maintain specifications. This
alignment typically takes >2 minutes to complete.
This operation might be desirable if the alignments had been set to not include RF alignments, or if
previous RF alignments could not complete because of interference which has since been removed.
If an interfering user signal is present at the RF Input, the alignment will terminate and generate the Error
Condition message “Align skipped: 50 MHz interference” or “Align skipped: 4.8 GHz interference”, and
Error Condition “Align Now, RF required”. In addition, bits 11 and 12 will be set in the Status Questionable
Calibration register.
The query form of the remote commands (:CALibration:RF?) will invoke the alignment of the RF subsystem
and return a success or failure value. An interfering user signal is grounds for failure.
Successful completion of Align Now, RF will begin the elapsed time counter for Last Align Now, RF Time,
and capture the Last Align Now, RF Temperature.
Align Now, RF can be interrupted by pressing the Cancel (ESC) front-panel key or remotely with Device
Clear followed by the :ABORt SCPI command. When this occurs, the Error Condition message “Align Now,
RF required” is generated, and bit 12 is set in the Status Questionable Condition register. None of the new
alignment data is used.
In EXF, Source ARB play will be turned off and the source states will not be restored after
Align Now
,
All
but RF.
Key Path
System, Alignments, Align Now
Mode
All
Remote Command
:CALibration:RF
:CALibration:RF?
Example
:CAL:RF
Notes
:CALibration:RF? returns 0 if successful
:CALibration:RF? returns 1 if failed (including interfering user signal)
While Align Now, RF 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
178
Sequence Analyzer User's & Programmer's Reference
Содержание E6650A EXF
Страница 34: ...1 About the Test Set Mouse and Keyboard Control 34 Sequence Analyzer User s Programmer s Reference...
Страница 94: ...2 Programming the Test Set Common Commands 94 Sequence Analyzer User s Programmer s Reference...
Страница 129: ...4 Mode Functions Undefined variable Primary ProductName Sequence Analyzer User s Programmer s Reference 129...
Страница 145: ...5 System Functions Undefined variable Primary ProductName Sequence Analyzer User s Programmer s Reference 145...
Страница 206: ...5 System Functions System 206 Sequence Analyzer User s Programmer s Reference...
Страница 214: ...6 List Sequence Measurements File File See File on page 146 214 Sequence Analyzer User s Programmer s Reference...
Страница 474: ...6 List Sequence Measurements Mode Mode See Mode on page 130 474 Sequence Analyzer User s Programmer s Reference...
Страница 478: ...6 List Sequence Measurements Print Print See Print on page 151 478 Sequence Analyzer User s Programmer s Reference...
Страница 642: ...6 List Sequence Measurements System System See System on page 152 642 Sequence Analyzer User s Programmer s Reference...