Rohde & Schwarz R&S FSP Series, Operating Manual

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Operating Manual 1164.4556.12 - 06 7.17
R&S FSP Remote Control – Programming Examples
More Complex Programming Examples
status = viRead(analyzer, result$, 100, retCnt)
Print result$
END SUB
REM ************************************************************************
7.3.5 Time Domain Power Measurement
In the following example, the mean carrier power of a signal with 300 kHz bandwidth
at 100 MHz is to be determined. In addition, the peak power, the rms value and the
standard deviation are measured. To do this, the time-domain-power measurement
functions are used.
REM ************************************************************************
Public Sub TimeDomainPower()
result$ = Space$(100)
'--------- R&S FSP default setting --------------------------
CALL SetupStatusReg
'Set status register
status = viWrite(analyzer, "*RST", 4, retCnt)
'Reset instrument
status = viWrite(analyzer, "INIT:CONT OFF", 13, retCnt)
'Single sweep
status = viWrite(analyzer, "SYST:DISP:UPD ON", 16, retCnt)
'ON: display on
'OFF: off
'---- Configure R&S FSP for time domain power measurement ---
status = viWrite(analyzer, "FREQ:CENT 100MHz;SPAN 0Hz", 25, retCnt)
'Set frequency
status = viWrite(analyzer, "BAND:RES 300kHz", 15, retCnt)
'Resolution bandwidth
status = viWrite(analyzer, "SWE:TIME 200US", 14, retCnt)
'Sweep time
status = viWrite(analyzer, "CALC:MARK:FUNC:SUMM:PPE ON", 26, retCnt)
'Peak measurement on
status = viWrite(analyzer, "CALC:MARK:FUNC:SUMM:MEAN ON", 27, retCnt)
'Mean measurement on
status = viWrite(analyzer, "CALC:MARK:FUNC:SUMM:RMS ON", 26, retCnt)
'RMS measurement on
status = viWrite(analyzer, "CALC:MARK:FUNC:SUMM:SDEV ON", 27, retCnt)
'Standard deviation on
'--------- Perform measurement and query results ------------
status = viWrite(analyzer, "INIT;*WAI", 9, retCnt)
'Perform sweep with sync
'Query results:
query$ = " CALC:MARK:FUNC:SUMM:PPE:RES?;"
'Peak measurement
query$ = query$ + ":CALC:MARK:FUNC:SUMM:MEAN:RES?;"
'Mean measurement
query$ = query$ + ":CALC:MARK:FUNC:SUMM:RMS:RES?;"