Command Description R&S SMB
1407.0806.32 6.42 E-2
SOURce:LFOutput Subsystem
This subsystem contains the commands for setting the LF signal source in CW and Sweep mode as
well as for analog modulations.
An LF sweep is set in several steps which are shown in the following example:
1. Set the sweep range.
LFOutput:FREQuency:STARt 4 kHz
LFOutput:FREQuency:STOP 10 kHz
2. Select linear or logarithmic sweep spacing.
LFOutput:SWEep[:FREQuency]:SPACing LIN
3. Set the step width and dwell time.
LFOutput:SWEep[:FREQuency]:STEP[:LINear] 100 Hz
LFOutput:SWEep[:FREQuency]:DWELl 20 ms
4. Determine the sweep mode.
LFOutput:SWEep:MODE AUTO
5. Determine the trigger.
TRIGger0:SOURce SINGle
6. Activate the sweep.
LFOutput:FREQuency:MODE SWEep
7. Trigger the sweep (depending on the mode).
LFOutput:SWEep:EXECute
The keyword SOURce is optional and can be omitted.
Command Parameters Default
unit
Remark
[SOURce:]LFOutput:FREQuency Min … max Hz See data
sheet
[SOURce:]LFOutput:FREQuency:MANual 0.1 Hz ... 1 MHz Hz
[SOURce:]LFOutput:FREQuency:MODE CW | FIXed | SWEep
[SOURce:]LFOutput:FREQuency:STARt 0.1 Hz ... 1 MHz Hz
[SOURce:]LFOutput:FREQuency:STOP 0.1 Hz ... 1 MHz Hz
[SOURce:]LFOutput:SHAPe SINE | SQUare
[SOURce:]LFOutput[:STATe] ON | OFF
[SOURce:]LFOutput:SWEep[:FREQuency]:DWELl 2 ms ... 10 s s
[SOURce:]LFOutput:SWEep[:FREQuency]:EXECute -
[SOURce:]LFOutput:SWEep[:FREQuency]:MODE AUTO | MANual | STEP
[SOURce:]LFOutput:SWEep[:FREQuency]:POINts <numeric_value>
[SOURce:]LFOutput:SWEep[:FREQuency]:SOURce LF1 | LF2
[SOURce:]LFOutput:SWEep[:FREQuency]:SPACing LINear | LOGarithmic
[SOURce:]LFOutput:SWEep[:FREQuency]:STEP[:LINear] 0 ... (STOP - STARt) Hz
[SOURce:]LFOutput:SWEep[:FREQuency]:STEP:LOGarithmic 0.01 ... 50 PCT PCT
[SOURce:]LFOutput:VOLTage 0 V ... 4 V V
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