R&S FSQ Signal Analyzer - Rohde & Schwarz

R&S FSQ Remote Control – Programming Examples
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.
More Complex Programming Examples
REM ************************************************************************
Public Sub TransducerFactor()
'--------- Define transducer factor ------------------------status
= viWrite(analyzer, "CORR:TRAN:SEL 'TRANSTEST'", 25, retCnt)
'Define "Transtest" transducer factor
status = viWrite(analyzer, "CORR:TRAN:UNIT 'DB'", 19, retCnt)
'Unit 'dB'
status = viWrite(analyzer, "CORR:TRAN:SCAL LIN", 18, retCnt)
'Linear frequency axis
status = viWrite(analyzer, "CORR:TRAN:COMM 'Simulated cable correction'", 43,
retCnt)
cmd$ = "CORR:TRAN:DATA "
'Enter frequency and level
cmd$ = cmd$ + "10MHz, 0,"
'values. Level values without unit!
cmd$ = cmd$ + "100MHz, 3,"
cmd$ = cmd$ + "1GHz, 7,"
cmd$ = cmd$ + "3GHz, 10"
status = viWrite(analyzer, cmd$, 50, retCnt)
'Enter frequency and level values
'--------- Activate transducer -----------------------------status
= viWrite(analyzer, "CORR:TRAN:STAT ON", 17, retCnt)
'Activate transducer factor
END SUB
REM ************************************************************************
7.3.9 Measuring the Magnitude and Phase of a Signal
(I/Q Data Acquisition)
Due to the R&S FSQ's internal architecture, it is capable of measuring and outputting
the magnitude and phase of a signal in addition to its power values. This opens
up a variety of possibilities for more in-depth analysis (FFT, demodulation, etc.).
For details on signal processing and the relation between sampling rate and maximum
bandwidth refer to chapter 6, section “TRACe:IQ Subsystem” on page 6.243.
The following maximum bandwidths are possible in this measurement depending on
the selected sampling rate:
The following example shows the steps necessary to collect data at a predefined
sampling rate and read it from the I/Q memory.
Data is output in the form of voltage values referring to the analyzer input.
7.24 Operating Manual 1313.9681.12 - 01