Agilent Technologies 81101A Reference Manual page 64

To program the pulse width by means of the delay parameters:
:PULS:DEL 500NS
:PULS:DEL:HOLD TIME
:PULS:TDEL 750NS
:PULS:TRAN[1]:HOLD
[:SOURce]:PULSe:TRANsition[1]:HOLD
Set & Query
TIME | WRATio
TIME
Use this command to set the coupling between transition times and the
pulse width:
TIME
WRATio
To set the coupling between transition times and the pulse width:
:PULS:TRAN:HOLD TIME
:PULS:TRAN:HOLD WRAT
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Set OUTPUT delay to 500 ns
Hold OUTPUT delay constant with
varying period
Set OUTPUT trailing delay to 750 ns
The absolute transition times are held when the
pulse width is varied.
The ratio of transition time to pulse width is held
when the pulse width is varied.
Hold OUTPUT transitions fixed when
pulse width varies
Hold OUTPUT transition width ratio
when pulse width varies