Rohde & Schwarz R&S SMB100B - Page 106

Analog modulations
R&S
®
SMB100B
106User Manual 1178.3711.02 ─ 08
In the "LF Output" tab, you can configure the signal at the LF outputs, determine
the output voltage or add a DC offset. Activate both paths to output the sum signal
of the two sources.
Settings:
State............................................................................................................................106
Source.........................................................................................................................106
Show Connector..........................................................................................................106
Output Voltage............................................................................................................ 106
DC-Offset.................................................................................................................... 107
Source Impedance......................................................................................................107
Load Impedance......................................................................................................... 107
Noise Level................................................................................................................. 107
└ Noise Density................................................................................................107
└ Noise Level................................................................................................... 108
State
Activates the output of the LF signal.
Remote command:
[:SOURce]:LFOutput<ch>[:STATe] on page 466
Source
Select the sources for the signal output at the LF connector. If you activate path 1 and
2, those sources are added.
Use the "Show Connector" function to find out where this connector is located.
"LF Generator 1/2"
Selects one of internally generated LF signals.
"AM"
Option: R&S SMBB-K720
Selects the AM signal.
"FM/PhiM"
Option: R&S SMBB-K720
Selects the signal also used by the frequency or phase modulations.
"Noise Generator"
Selects the internally generated noise signal.
"External"
Selects an externally supplied LF signal.
Remote command:
[:SOURce]:LFOutput<ch>:SOURce on page 467
Show Connector
Accesses a dialog that displays the physical location of the selected connector on the
front/rear panel of the instrument.
Output Voltage
Sets the peak to peak voltage of the selected LF output source.
This value, e.g. +1 V to -1 V refers to 50 Ohm at the RF output with high termination
impedance at the LF output.
Modulation settings