Agilent N5181A/82A MXG Signal Generators SCPI Command Reference 135
Analog Modulation Commands
Pulse Modulation Subsystem–Option UNU and UNW([:SOURce])
If the entered value for the pulse width is equal to or greater than the value for the pulse period, the
pulse width changes to a value that is less than the pulse period. For more information, refer to the
command “:PULM:INTernal[1]:PERiod” on page 133.
Use PWIDTH1 with the DOUBlet parameter and PWIDTH1 and PWIDTH2 with the ADOublet
parameter (refer to “:PULM:Source:INTernal” on page 135).
NOTE A power search is recommended for signals with pulse widths less than one microsecond.
Refer to “:ALC:SEARch” on page 50.
Example
:PULM:INT:PWIDth 100MS
The preceding example sets the pulse width to 100 milliseconds.
*RST +2.00000000E−006
Range 20nS to (pulse period - 10 nS)
Key Entry Pulse Width
:PULM:SOURce
Supported All with Option UNU
[:SOURce]:PULM:SOURce?
This query returns the source of pulse modulation.
The INTernal selection accesses one of the six internally generated modulation inputs while EXTernal
selects an external pulse (Ext Pulse) input. To select an internally generated modulation input, refer
to “:PULM:Source:INTernal” on page 135.
:PULM:Source:INTernal
Supported All with Option UNU and UNW
[:SOURce]:PULM:SOURce:INTernal SQUare|FRUN|TRIGgered|ADOublet|DOUBlet|GATEd
[:SOURce]:PULM:SOURce:INTernal?
This command selects one of the six internally generated modulation inputs. There is one external
source: Ext Pulse selected by “:PULM:SOURce” on page 135.
User Delay[1] with the DOUBlet parameter and Delay1 and Delay2 with the ADOublet parameter.
Example
:PULM:SOUR:INT SQU
The preceding example selects the internally–generated square wave pulse modulation format.
*RST FRUN (Int Free–Run)
Key Entry Square Free-Run Triggered Adjustable Doublet
Trigger Doublet Gated
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