Instrument Function
R&S
®
SMU200A
303Operating Manual 1007.9845.32 ─ 15
Selects the display of output results for the analog (DACIF) or the digital (BBOUT) signal
path.
Note: This selection field is only available with the option R&S SMU-B18, Baseband
Digital I/Q Out. If the instrument is not equipped with this option the parameters of the
analog signal path are displayed.
"Analog Output"
The parameters of the analog signal path are displayed.
"Digital Output"
The parameters of the digital signal path are displayed.
SCPI command:
[:SOURce<hw>]:AWGN:DISP:ORESults on page 572
Target CW Frequency - AWGN
(CW Interferer mode only)
Sets the desired frequency of the sine in "CW Interferer" mode.
SCPI command:
[:SOURce<hw>]:AWGN:FREQuency:TARGet on page 573
Resulting CW Frequency - AWGN
(CW Interferer mode only)
Indication of the actual CW frequency of the sinusoidal signal in "CW Interferer" mode.
The actual frequency may differ from the desired frequency, since the resolution is limited
to 0.7 Hz.
Tip: The desired frequency constellation can be precisely set with an accuracy of up to
0.01 Hz by selecting a suitable frequency offset of the baseband source (e.g. Custom
Dig Mod) and by correcting the RF frequency by the difference between Resulting and
Target CW Frequency.
SCPI command:
[:SOURce<hw>]:AWGN:FREQuency:RESult on page 573
Noise/Interferer Level Configuration And Output Results
The interfering signal is configured in the "Noise/Interferer Level Configuration and Out-
put Results" section.
Set Noise Level via - AWGN
(Additive Noise only)
Selects the mode for setting the noise level
"C/N ""S/N"
The noise level is set on the basis of the value entered for the carrier/
noise or signal/noise ratio.
Whether a selection of C/N or S/N is enabled, depends on the selected
"Display Mode".
With digital modulation, the associated E
b
/N
0
value is determined and
displayed.
Impairment of Digital I/Q Signal and Noise Generator - AWGN/IMP Block
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