Signal Generator Settings
R&S
®
SGT100A
130
User Manual 1176.8674.02 ─ 07
●
For "Reference Mode > Carrier ", this entry determines the
noise power
and hence
the power of the output signal, i.e. the c noise signal. It does not affect the
power of the useful signal, i.e. the carrier power is kept constant.
●
For "Reference Mode > Noise ", this entry determines the
power of the useful sig-
nal
, i.e. the carrier power. The noise power is kept constant.
●
The power of the noise signal is derived from the selected E
b
/N
0
and displayed with
the parameter "Noise Power" in the units of the useful signal.
●
The power of the useful signal is displayed with the parameter
. This indication corresponds to the "Level" value in the "Status bar".
●
The power of the output signal is displayed under
Noise Power (System Bandwidth) / C Interferer Power / Interferer
Power
.
Remote command:
Carrier Power / Signal Power
Available only for "Mode > Additive Noise" and "Mode > CW Interferer".
The name of this parameter depends on the selected output
●
For "Reference Mode > Carrier ", this parameter sets the carrier power. This indi-
cation corresponds to the "Level" value in the "Status bar".
The power of the noise signal is derived from the selected C/N or S/N value and
displayed with the parameter "Noise Power" in the units of the useful signal.
●
For "Reference Mode > Noise ", this parameter indicates the carrier power as
derived from the entered C/N or S/N value. This indication corresponds to the
"Level" value in the "Status bar".
The noise power can be set under "Noise Power".
Note:
The peak envelope power (PEP) displayed in the "Status bar" corresponds to
the PEP value of the carrier. The parameter "Noise (PEP)" indicates the PEP
value of the overall signal.
Remote command:
[:SOURce<hw>]:AWGN:POWer:CARRier
Noise Power (System Bandwidth) / Interferer Power
Available only for "Mode > Additive Noise" and "Mode > CW Interferer".
Displays the power of the noise signal in the system respectively to the total band-
width.
●
"Noise Only" mode
Sets the power of the noise signal. This indication corresponds to the "Level" value
in the "Status bar".
●
"Additive Noise" mode
–
"Reference Mode > Noise"
Sets the power of the noise signal. The power of the carrier is derived from the
entered C/N or S/N or Eb/N0 value.
–
"Reference Mode > Carrier "
Displays the power of the noise signal in the system bandwidth. The power of
the noise signal is derived from the entered C/N or S/N or Eb/N0 value. The
carrier power is selected with "Carrier Power"; respectively the signal power is
displayed by "Signal Power".
Additive White Gaussian Noise (AWGN) - Noise Generator
