Rohde & Schwarz CMU-K20, Operating Manual

Page: 342 / 646

Common: NPOWer CMU-K20/21/22/23/24
1115.6088.12 6.38 E-12
NPOWer
The subsystem NPOWer measures the power of the signal transmitted by the mobile phone using the
RF analyzer configuration of the POWer measurement. Compared to WPOWer , the NPOWer
measurement uses a narrow-band (500 kHz Gauss) filter.
The narrow-band NPOWer measurement yields the average, maximum and minimum burst power of
the current burst. In addition to these Current values the minimum and maximum power in the entire
measurement and the average of the average current values, referenced to a statistics cycle, is
calculated. The entire measurement curves (arrays) are not available, and no limit check is performed.
NPOWer is a quick and precise alternative to the WPOWer or POWer measurements if only scalar
results are needed.
Note: A Free Run trigger (
TRIGger[:SEQuence]:SOURce FRUN
) should be avoided because
it delays the
NPOWer
measurement.
INITiate:NPOWer Start new measurement
⇒
RUN
ABORt:NPOWer Abort measurement and switch off
⇒
OFF
STOP:NPOWer Stop measurement
⇒
STOP
CONTinue:NPOWer Next measurement step (only counting mode )
⇒
RUN
Description of command FW vers.
These commands have no query form. They start or stop the measurement, setting it to the status
given in the top right column. V3.05
CONFigure:NPOWer:EREPorting < Mode > Event Reporting
<Mode> Description of parameters Def. value Def. unit FW vers.
SRQ |
SOPC |
SRSQ |
OFF Service request
Single operation complete
SRQ and SOPC
No reporting
OFF – V3.05
Description of command
This command defines the events generated when the measurement is terminated or stopped (event reporting,
see chapter 5 of CMU200 operating manual).
FETCh:NPOWer:STATus? Measurement
Return Description of parameters Def. value Def. unit FW vers.
OFF |
RUN |
STOP |
ERR |
STEP |
RDY,
1 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 current statistics cycle
No counting mode set
Counter for current evaluation period within a cycle
Statistic count set to off
OFF
NONE
NONE –
–
– V3.05
Description of command
This command is always a query. It returns the status of the measurement (see chapters 3 and 5 of CMU manual
operating manual).
深圳德标仪器
135-1095-0799