The SOURce:LFOutput subsystem contains the commands for setting the LF signal source in CW and Sweep mode and for analog modulation.
An LF generator is always available in the instrument. A second LF generator is optional.
The suffix for LFOutput<ch> denotes the selected LF generator. The source for the LF sweep (LF generator 1 or 2) is selected with command SOURce:LFOutput:SWEep:FREQuency:SOURce.
The following example shows how to set an LF sweep.
Set the sweep range.
LFOutput:FREQuency:STARt 4 kHz
LFOutput:FREQuency:STOP 10 kHz
Select linear or logarithmic sweep spacing.
LFOutput:SWEep[:FREQuency]:SPACing LIN
Set the step width and dwell time.
LFOutput:SWEep[:FREQuency]:STEP[:LINear] 100 Hz
LFOutput:SWEep[:FREQuency]:DWELl 20 ms
Determine the sweep mode.
LFOutput:SWEep:MODE AUTO
Determine the trigger.
TRIGger0:SOURce SINGle
Activate the sweep.
LFOutput:FREQuency:MODE SWEep
Trigger the sweep (depending on the mode).
LFOutput:SWEep:EXECute
[:SOURce<hw>]:LFOutput:FREQuency:MANual
[:SOURce<hw>]:LFOutput:FREQuency:MODE
[:SOURce<hw>]:LFOutput:FREQuency:STARt
[:SOURce<hw>]:LFOutput:FREQuency:STOP
[:SOURce]:LFOutput<ch>:INTernal:VOLTage
[:SOURce]:LFOutput:OFFSet
[:SOURce]:LFOutput:SOURce
[:SOURce]:LFOutput[:STATe]
[:SOURce<hw>]:LFOutput:SWEep[:FREQuency]:DWELl
[:SOURce<hw>]:LFOutput:SWEep[:FREQuency]:EXECute
[:SOURce]:LFOutput:SWEep[:FREQuency]:LFSource
[:SOURce<hw>]:LFOutput:SWEep[:FREQuency]:MODE
[:SOURce<hw>]:LFOutput:SWEep[:FREQuency]:POINts
[:SOURce<hw>]:LFOutput:SWEep[:FREQuency]:RETRace
[:SOURce<hw>]:LFOutput:SWEep[:FREQuency]:RUNNing?
[:SOURce<hw>]:LFOutput:SWEep[:FREQuency]:SHAPe
[:SOURce<hw>]:LFOutput:SWEep[:FREQuency]:SPACing
[:SOURce<hw>]:LFOutput:SWEep[:FREQuency]:STEP[:LINear]
[:SOURce<hw>]:LFOutput:SWEep[:FREQuency]:STEP:LOGarithmic
[:SOURce<hw>]:LFOutput<ch>:SHAPe
[:SOURce<hw>]:LFOutput<ch>:SHAPe:TRAPeze:FALL
[:SOURce<hw>]:LFOutput<ch>:SHAPe:TRAPeze:HIGH
[:SOURce]:LFOutput<ch>:SHAPe:TRAPeze:LOW
[:SOURce<hw>]:LFOutput<ch>:SHAPe:TRAPeze:RISE
[:SOURce]:LFOutput:VOLTage
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