Instrument Function
R&S
®
SMBV100A
311Operating Manual 1176.8016.02 ─ 17
Remote command:
[:SOURce<hw>]:AWGN:BWIDth:NOISe? on page 593
Display Mode - AWGN
Switches between Baseband and RF representation.
This setting influences the way the interfering parameters are displayed, as for exam-
ple the SNR value defined as C/N, or as S/N.
Remote command:
[:SOURce<hw>]:AWGN:DISP:MODE on page 594
Target CW Frequency - AWGN
(CW Interferer mode only)
Sets the desired frequency of the sine in "CW Interferer" mode.
Remote command:
[:SOURce<hw>]:AWGN:FREQuency:TARGet on page 595
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 limi-
ted 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.
Remote command:
[:SOURce<hw>]:AWGN:FREQuency:RESult? on page 595
Noise Power Configuration And Output Results
The interfering signal is configured in the "Noise/Interferer Power Configuration and
Output Results" section.
Set Power via - AWGN
(Additive Noise only)
Selects the mode for setting the noise power.
"C/N ""S/N"
The noise power is set on the basis of the value entered for the car-
rier/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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