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Brief Introduction to Remote Control
R&S
®
FSVA/FSV
158
Quick Start Guide 1321.3066.02 ─ 05
CALL InstrWrite(analyzer,"SWEEP:TIME:AUTO ON")
'Couple sweep time
CALL InstrWrite(analyzer,"INP:ATT:AUTO ON")
'Select more sensitive level setting
CALL InstrWrite(analyzer,"DISP:WIND:TRAC:Y:RLEV -50dBm")
CALL InstrWrite(analyzer,"INIT;*WAI") 'Perform sweep with sync
CALL InstrWrite(analyzer,"CALC:DELT:MAX;X:REL?;Y?")
'Read delta marker
result$ = Space$(100)
CALL InstrRead(analyzer, result$, 100, retCount)
'Read frequency and level
Debug.Print "Deltamarker 1: "; result$
END SUB
REM ***********************************************************************
7.2.2.4
Measuring Noise and Phase Noise
When phase noise is measured, the noise power related to a bandwidth of 1 Hz is
set in relation to the power of an adjacent carrier signal. A commonly used offset
between the measured frequency and the carrier frequency is 10 kHz.
When noise is measured, the measured absolute level is related to a bandwidth
of 1 Hz.
The following example is also based on a signal at 100 MHz with a level of -30
dBm. Two markers are used to determine both the noise and the phase noise at a
10 kHz offset from the carrier signal.
REM ************************************************************************
Public Sub Noise()
Dim retCount as Long
'--------- Default setting of the R&S FSV --------------------------------
CALL SetupStatusReg 'Configure status register
CALL InstrWrite(analyzer,"*RST") 'Reset instrument
CALL InstrWrite(analyzer,"INIT:CONT OFF")
'Single sweep mode
'--------- Setting the frequency ------------------------------------------
CALL InstrWrite(analyzer,"FREQUENCY:CENTER 100MHz")
'Center frequency
CALL InstrWrite(analyzer,"FREQ:SPAN 100 kHz")
'Span
'--------- Setting the level ----------------------------------------------
CALL InstrWrite(analyzer,"DISP:WIND:TRAC:Y:RLEV -20dBm")
'Reference level
CALL InstrWrite(analyzer,"INIT;*WAI") 'Perform sweep with sync
'--------- Setting the reference point ------------------------------------
Detailed Programming Examples
Summary of Contents for R&S FSV
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