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Agilent X-Series Signal Generators SCPI Command Reference 237

Analog Modulation Commands

Pulse Modulation Subsystem–Option UNU and UNW and Option 320 ([:SOURce])

:PULM:EXTernal:POLarity

Supported All with Option UNW

[:SOURce]:PULM:EXTernal:POLarity NORMal|INVerted

[:SOURce]:PULM:EXTernal:POLarity?

This command selects the polarity of the TTL input signal at the TRIG IN rear panel connector. The

signal generator can respond to either a normal (a TTL high) or an inverted (TTL low) signal.

Example

:PULM:EXT:POL NORM

The preceding example selects normal (TTL high) polarity.

*RST Normal

Key Entry Ext Polarity Normal Invert

:PULM:INTernal:DELay:STEP

Supported All with Option UNW

[:SOURce]:PULM:INTernal:DELay:STEP <value><unit>

[:SOURce]:PULM:INTernal:DELay:STEP?

This command sets the step increment for the pulse delay.

The step value, set by this command, is used with the UP and DOWN choices in the

:PULM:INTernal:DELay[1]|2 command.

The step value set with this command is not affected by a signal generator power- on, preset, or *RST

command.

Example

:PULM:INT:DEL:STEP 10NS

The preceding example sets the pulse delay step value to 10 nanoseconds.

Range 10nS to (pulse period – 20 nS)

Key Entry Incr Set

:PULM:INTernal:DELay[1]|2

Supported All with Option UNW

[:SOURce]:PULM:INTernal:DELay[1]|2 <value><unit>|UP|DOWN

[:SOURce]:PULM:INTernal:DELay[1]|2

This command sets the pulse delay for the internally- generated pulse modulation using the variable

<value><unit>. The command, used with the UP|DOWN parameters, will change the delay by a

user- defined step value. Refer to the :PULM:INTernal:DELay:STEP command for setting the value

associated with the UP and DOWN choices.

Agilent Technologies N5171B User Manual

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