Rohde & Schwarz FSVA - 4.3.9 Level Correction of Transducers

Remote Control
R&S
®
FSVA/FSV
1032Operating Manual 1176.7510.02 ─ 09
cmd$ = "LIST:POWer?"cmd$ = cmd$ + "935.2 MHZ, 10 dBm, 20 dB,OFF,NORM,1 MHz,3 MHz,
300 us, 0, "
cmd$ = cmd$ + "1805.2 MHZ, 10 dBm, 20 dB,OFF,NORM,1 MHz,3 MHz,300 us, 0, "
cmd$ = cmd$ + "1870.4 MHZ, 10 dBm, 20 dB,OFF,NORM,1 MHz,3 MHz,300 us, 0, "
cmd$ = cmd$ + "2805.6 MHZ, 0 dBm, 20 dB,OFF,NORM,1 MHz,3 MHz,300 us, 0, "
cmd$ = cmd$ + "3610.4 MHz, 10 dBm,20 dB,OFF,NORM,1 MHz,3 MHz,300 us, 0, "
cmd$ = cmd$ + "3740.8 MHz, 0 dBm, 20 dB, OFF, NORM, 1 MHz,3 MHz,300 us, 0, "
cmd$ = cmd$ + "5815.6 MHz, 0 dBm, 20 dB, OFF, NORM, 1 MHz, 3 MHz, 300 us, 0"
CALL InstrWrite (analyzer, cmd$)
CALL InstrRead(analyzer, result$)
Print result$
END SUB
REM ************************************************************************
4.3.9 Level Correction of Transducers
In more complex test systems, the frequency response of the test setup must be taken
into account in all power measurements to avoid any measurement errors being intro-
duced from sources other than the DUT.
The R&S FSVA/FSV offers the possibility of defining a frequency-dependent attenua-
tion correction factor (transducer factor).
In the example below, a factor with the following characteristics is defined:
Name: Transtest
Unit: dB
Scaling: lin
Comment: simulated cable correction
Frequency Level
10 MHz 0 dB
100 MHz 3 dB
1 GHz 7 dB
3 GHz 10 dB
The factor is defined and can be activated as required.
REM ************************************************************************
Public Sub TransducerFactor()
'--------- Define transducer factor ---------------------------------------
CALL InstrWrite (analyzer, "CORR:TRAN:SEL 'TRANSTEST'")
'Define "Transtest"'transducer factor
CALL InstrWrite (analyzer, "CORR:TRAN:UNIT 'DB'")
'Unit 'dB'
CALL InstrWrite (analyzer, "CORR:TRAN:SCAL LIN")
'Linear frequency-axis
CALL InstrWrite (analyzer, "CORR:TRAN:COMM 'Simulated cable correction'")
Remote Control – Programming Examples