Instrument Function
R&S
®
SMBV100A
260Operating Manual 1407.6062.32 ─ 08
Noise Bandwidth - AWGN
(Additive Noise and Noise Only)
Indicates the real noise bandwidth. The value is only indicated for "State On".
Note: The noise signal is not generated arbitrarily for a particular bandwidth, but instead
it is generated in steps. Noise therefore also occurs outside the set system bandwidth.
SCPI command:
[:SOURce<hw>]:AWGN:BWIDth:NOISe on page 497
Display Mode - AWGN
Sets the display mode to Baseband or RF.
SCPI command:
[:SOURce<hw>]:AWGN:DISP:MODE on page 498
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 499
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 499
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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