CMU RF Measurements
1100.4903.12 6.51 E-10
Spectrum Measurements (SPECtrum)
The subsystem SPECtrum measures the RF frequency spectrum. The subsystem corresponds to the
measurement menu Spectrum and the associated popup menu Spectrum Configuration.
Measurement Control – Subsystem SPECtrum
The subsystem SPECtrum controls the spectrum measurement. It corresponds to the Spectrum. soft-
key in the measurement menu Spectrum.
INITiate:SPECtrum Start new measurement
⇒
RUN
ABORt:SPECtrum Abort running measurement and switch off
⇒
OFF
STOP:SPECtrum Stop measurement after current evaluation period
⇒
STOP
CONTinue:SPECtrum Next measurement step (only stepping mode)
⇒
RUN
Command description FW vers.
These commands have no query form. They start or stop the measurement, setting it to the status
indicated in the top right column.
V1.15
CONFigure:SPECtrum:EREPorting <Mode> Event Reporting
<Mode>
Parameter description Def. value Def. unit FW vers.
SRQ |
SOPC |
SRSQ |
OFF
Service request
Single operation complete
SRQ and SOPC
No reporting
OFF – V1.15
Command description
This command defines the events generated when the measurement is terminated or stopped (event reporting,
see chapter 5).
FETCh:SPECtrum:STATus? Measurement status
Returned value
Parameter description Def. value Def. unit FW vers.
OFF |
RUN |
STOP |
ERR |
STEP |
RDY,
0 to 10000 |
NONE
1 to 1000 |
NONE
Measurement in the OFF state (*RST or ABORt)
Running (after INITiate, CONTinue or READ)
Stopped (STOP)
OFF (could not be started)
Stepping mode (<stepmode>=STEP)
Stopped according to repetition mode and stop condition
Counter for measurement cycles
Counter not used
Counter for current evaluation period within a cycle
Statistic count set to off
OFF
NONE
NONE
–
–
–
V1.15
Command description
This command is always a query. It returns the status of the measurement (see chapters 3 and 5).
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