Maintenance
R&S
®
SMBV100B
938User Manual 1178.4460.02 ─ 03
Access:
► Select "System Config > Setup > Maintenance > Selftest > DAC".
The "DAC" dialog contains the parameters for testing the IQ signal source.
The remote commands required to define these settings are described in Chap-
ter 12.19, "TEST Subsystem", on page 917.
State
Starts the test generator.
Remote command:
:TEST:BB:GENerator:STATe on page 921
IQ Source
Selects the test signal source.
"Sine"
Generates a sine waveform with frequency as set with the parameter
Frequency.
"Constant I/Q"
Uses a constant I/Q test signal.
For more details, see Chapter 3.6.3.4, "Constant IQ Test Signal",
on page 158.
"ARB"
Selects a signal generated by the ARB. Select the waveform file with
the parameter Select ARB File.
Remote command:
:TEST:BB:GENerator:SOURce on page 921
Gain
Sets the gain for a sine or a constant I/Q test signal.
Remote command:
:TEST:BB:GENerator:GAIN on page 920
Frequency
If "IQ Source = Sine", sets the frequency of the test signal.
Remote command:
:TEST:BB:GENerator:FREQuency on page 920
Performing Maintenance Tasks
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