120 Agilent N5181A/82A MXG Signal Generators SCPI Command Reference
Analog Modulation Commands
Amplitude Modulation Subsystem–Option UNT ([:SOURce])
Amplitude Modulation Subsystem–Option UNT ([:SOURce])
:AM:EXTernal:COUPling
Supported All Models with Option UNT
[:SOURce]:AM:EXTernal:COUPling AC|DC
[:SOURce]:AM:EXTernal:COUPling?
This command sets the coupling for the amplitude modulation source through the selected external
input connector.
AC This choice will only pass ac signal components.
DC This choice will pass both ac and dc signal components.
*RST DC
Key Entry Ext Coupling DC AC
Remarks The command does not change the currently active source or switch the current
modulation on or off. The modulating signal may be the sum of several signals,
either internal or external sources.
:AM:INTernal:FREQuency
Supported All Models with Option UNT
[:SOURce]:AM:INTernal:FREQuency <value><unit>|UP|DOWN
[:SOURce]:AM:INTernal:FREQuency?
This command sets the internal amplitude modulation rate for the following applications:
• the start frequency for a swept- sine waveform
• the frequency rate for all other waveforms
*RST +4.00000000E+002
:AM:INTernal:FREQuency:STEP[:INCRement]
Supported All Models with Option UNT
[:SOURce]:AM:INTernal:FREQuency:STEP[:INCRement] <num>
[:SOURce]:AM:INTernal:FREQuency:STEP[:INCRement]?
This command sets the step increment for the amplitude modulation internal frequency.
The variable <num> is expressed in units of Hertz.
Range 0.5–1E6
Key Entry Incr Set
Range Swept- Sine & Sine: 0.1 Hz–20 MHz
Key Entry AM Rate