4 Triggering
140 InfiniiVision 7000B Series Oscilloscopes User’s Guide
3 Press the sync polarity softkey to set the TV trigger to either positive
( ) or negative ( ) sync polarity.
4 Press the Standard softkey to set the TV standard.
The oscilloscope supports triggering on the following television (TV) and
video standards.
5 Press the Mode softkey to select the portion of the video signal that you
would like to trigger on.
The TV 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 (not available in Generic mode).
• All Lines — Trigger on all horizontal sync pulses.
• Line — Trigger on the selected line # (EDTV and HDTV standards
only).
Provide Correct Matching
Many TV signals are produced from 75 sources. To provide correct matching to these
sources, a 75 terminator (such as an Agilent 11094B) should be connected to the
oscilloscope input.
Standard Type Sync Pulse
NTSC Interlaced Bi-level
PAL Interlaced Bi-level
PAL-M Interlaced Bi-level
SECAM Interlaced Bi-level
Generic Interlaced/Progressive Bi-level/Tri-level
EDTV 480p/60 Progressive Bi-level
HDTV 720p/60 Progressive Tri-level
HDTV 1080p/24 Progressive Tri-level
HDTV 1080p/25 Progressive Tri-level
HDTV 1080p/50 Progressive Tri-level
HDTV 1080p/60 Progressive Tri-level
HDTV 1080i/50 Interlaced Tri-level
HDTV 1080i/60 Interlaced Tri-level
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