Rohde & Schwarz CMU 300 - AF Generator (Afgenerator)

CMU Audio Generator and Analyzer (with Option CMU-B41)
1100.4903.12 6.73 E-10
Subsystem AFANalyzer... (Measured Values)
The subsystem AFANalyzer... starts the audio analysis and returns the results.
READ[:SCALar]:AFANalyzer[:PRIMary]? Scalar Results
READ[:SCALar]:AFANalyzer:SECondary? Start single shot meas. and return results
FETCh[:SCALar]:AFANalyzer[:PRIMary]?
FETCh[:SCALar]:AFANalyzer:SECondary? Read out meas. results (unsynchronized)
SAMPle[:SCALar]:AFANalyzer[:PRIMary]?
SAMPle[:SCALar]:AFANalyzer:SECondary? Read out meas. results (synchron.)
Return
Description of parameters Def. value Def. unit FW vers.
PeakVoltage1
RMSVoltage1
DCVoltage
Distortion
PeakVoltage2
RMSVoltage2
Frequency
0 V to 42.4 V
0 V to 30 V
–30 V to 30 V
0% to 100%
0 V to 42.4 V
0 V to 30 V
10 Hz to 204.8 kHz
NAN
NAN
NAN
NAN
NAN
NAN
NAN
V
V
V
%
V
V
Hz
V2.10
V2.12
(last 3
output
values)
Description of command
These commands are always queries. They start a measurement and output all scalar measurement results (see
also Fig. 6-1). These are:
• Peak1 and RMS1 value of AC voltage after first band pass and the weighting filter
• DC voltage
• Total harmonic distortion
• Peak2 and RMS2 value of AC voltage after first band pass and second band pass (variable band
pass)
• Frequency counter
AF Generator (AFGenerator)
The subsystem AFGenerator configures and controls the AF generator. It corresponds to the meas-
urement softkey Generator in the measurement menu Audio Analyzer/Generator and the associated
input fields.
INITiate:AFGenerator[:PRIMary] AF Generator Control
INITiate:AFGenerator:SECondary Start AF generator, reserve resources ⇒ RUN
ABORt:AFGenerator:[PRIMary]
ABORt:AFGenerator:SECondary Switch off AF generator, release resources ⇒ OFF
Description of command FW vers.
These commands have no query form. They start and stop the AF generator, setting it to the status
given in the top right column.
Note: A running multitone measurement must be aborted before the single tone AF generator is
switched on. See note in section Audio Generator and Analyzer (with Option CMU-B41)
on page 6.64.
V2.10