Rohde & Schwarz R&S FSL3 - Page 1642

Time Domain Power Measurement R&S FSL
1300.2519.12 7.14 E-11
CALL InstrWrite(analyzer,"SENS:POW:ACH:PRES OBW")
'Set frequency and optimize
reference level
CALL InstrWrite(analyzer,"SENS:POW:ACH:PRES:RLEV")
CALL InstrWrite(analyzer,"SENS:POW:NCOR OFF")
'Noise correction
'OFF: switch off
'
ON: switch on
'––––––––– Perform measurement and query results –––––––––––––––––––––––––––
CALL InstrWrite(analyzer,"INIT;*WAI") 'Perform sweep with sync
CALL InstrWrite(analyzer,"CALC:MARK:FUNC:POW:RES? OBW")
'Query result
CALL InstrRead(analyzer, result$)
Print result$
END SUB
REM
************************************************************************
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 FSL default setting ––––––––––––––––––––––––––––––––––––––––
CALL SetupStatusReg 'Set status register
CALL InstrWrite(analyzer,"*RST") 'Reset instrument
CALL InstrWrite(analyzer,"INIT:CONT OFF") 'Single sweep
CALL InstrWrite(analyzer,"SYST:DISP:UPD ON")
'ON: display on
'OFF: off
'––––––––– Configure R&S FSL for time domain power measurement ––––––––––––
CALL InstrWrite(analyzer,"FREQ:CENT 100MHz;SPAN 0Hz")
'Set frequency
CALL InstrWrite(analyzer,"BAND:RES 300kHz")
'Resolution bandwidth
CALL InstrWrite(analyzer,"SWE:TIME 200US") 'Sweep time
CALL InstrWrite(analyzer,"CALC:MARK:FUNC:SUMM:PPE ON")
'Peak measurement on
CALL InstrWrite(analyzer,"CALC:MARK:FUNC:SUMM:MEAN ON")
'Mean measurement on
CALL InstrWrite(analyzer,"CALC:MARK:FUNC:SUMM:RMS ON")
'RMS measurement on
CALL InstrWrite(analyzer,"CALC:MARK:FUNC:SUMM:SDEV ON")
'Standard deviation on