Rohde & Schwarz R&S SMW200A - Page 554

Configuring the RF Signal
R&S
®
SMW200A
554User Manual 1175.6632.02 ─ 30
You can use the internal LF signal as modulation signal source for any of the ana-
log modulations. The LF signal applies to all modulations which use the internal
modulation signal. Therefore, any modification of the LF signal influences immedi-
ately all currently active modulations.
Settings
State (LF frequency sweep)........................................................................................554
Shape..........................................................................................................................554
Frequency................................................................................................................... 554
Period..........................................................................................................................554
Pulse Width.................................................................................................................555
Pulse Duty Cycle.........................................................................................................555
Triangle Rise............................................................................................................... 555
Trapezoid Rise / Fall................................................................................................... 555
Trapezoid High............................................................................................................555
State (LF frequency sweep)
Status of the LF frequency sweep signal.
You find this parameter in two dialogs:
●
"LF Frequency Sweep" turns on/off the signal generation.
See Sweep Mode Settings for access.
●
"Analog Modulation Sources" displays the current state (read-only). If it is turned
on, this dialog provides the varying sweep frequency, see Current Frequency.
Note: Active RF frequency, RF level or RF combined sweep modes deactivate the LF
sweep or List mode and vice versa.
Remote command:
[:SOURce<hw>]:LFOutput:FREQuency:MODE on page 1156
Shape
Selects the waveform shape of the LF generator signal.
The "Triangle" and "Trapezoid" waveforms require option R&S SMW-K24.
Remote command:
[:SOURce<hw>]:LFOutput<ch>:SHAPe on page 1158
Frequency
Sets the frequency of the LF generator for sine signals.
Set the signal shape with the parameter Shape.
Remote command:
[:SOURce<hw>]:LFOutput<ch>:FREQuency on page 1155
Period
Sets the repetition rate of the generated LF signal for triangle, trapezoid or pulse
shapes, see Shape.
The period of sine signals is calculated from the selected Frequency
Analog Modulations