Keysight DSOX3012T, User Manual

Page: 194 / 530

194 Keysight InfiniiVision 3000T X-Series Oscilloscopes User's Guide
11
Triggers
The Generic selection lets you trigger on custom bi-level and tri-level sync video
standards. See “To set up Generic video triggers" on page 195.
7 Press the Auto Setup softkey to automatically set up the oscilloscope for the
selected Source and Standard :
• Source channel vertical scaling is set to 140 mV/div.
• Source channel offset is set to 245 mV.
• Source channel is turned on.
• Trigger type is set to Video .
• Video trigger mode is set to All Lines (but left unchanged if Standard is
Generic ).
• Display Grid type is set to IRE (when Standard is NTSC ) or mV (see “To select
the grid type" on page 158).
• Horizontal time/division is set to 10 µs/div for NTSC/PAL/SECAM standards
or 4 µs/div for EDTV or HDTV standards (unchanged for Generic ).
• Horizontal delay is set so that trigger is at first horizontal division from the
left (unchanged for Generic ).
You can also press [Analyze]> Features and then select Video to quickly access the
video triggering automatic set up and display options.
8 Press the Mode softkey to select the portion of the video signal that you would
like to trigger on.
The Video trigger modes available are:
• Field1 and Field2 — Trigger on the rising edge of the first serration pulse of
field 1 or field 2 (interlaced standards only).
• All Fields — Trigger on the rising edge of the first pulse in the vertical sync
interval.
• All Lines — Trigger on all horizontal sync pulses.
• Line — Trigger on the selected line number (EDTV and HDTV standards only).
• Line: Field1 and Line:Field2 — Trigger on the selected line # in field 1 or field 2
(interlaced standards only).
• Line: Alternate — Alternately trigger on the selected line # in field 1 and field 2
(NTSC, PAL, PAL-M, and SECAM only).
9 If you select a line # mode, press the Line # softkey, then rotate the Entry knob
to select the line number on which you want to trigger.