Agilent Technologies Infiniium 8000A Programmer's Reference Manual page 778

Command
<lower_limit> Minimum pulse width (time >), from 5 ns to 9.9999999 s.
Query
Returned Format
Trigger Commands
UDTV:PGTHan
UDTV:PGTHan
:TRIGger:ADVanced:TV:UDTV:PGTHan <lower_limit>
The :TRIGger:ADVanced:TV:UDTV:PGTHan (Present Greater THan)
command specifies the minimum pulse width of the waveform used to arm the
trigger used during user-defined trigger mode.
:TRIGger:ADVanced:TV:UDTV:PGTHan?
The query returns the currently selected minimum pulse width.
[:TRIGger:ADVanced:TV:UDTV:PGTHan] <lower_limit><NL>
29-70