164 Agilent InfiniiVision 3000 X-Series Oscilloscopes User's Guide
10 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 166.
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 132).
• 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).
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