Triggers
10
Keysight InfiniiVision 3000 X-Series Oscilloscopes User's Guide
165
1
Press the
Time >
softkey; then, turn the Entry knob to set the time to
greater-than the sync-pulse width so that the oscilloscope synchronizes to the
vertical sync.
2
Press the
Edge #
softkey; then, turn the Entry knob to select the Nth edge after
after vertical sync to trigger on.
3
To enable or disable the horizontal sync control, press the first
Horiz Sync
softkey.
•
For interleaved video, enabling the
Horiz Sync
control and setting the
Horiz Sync
adjustment to the sync time of the probed video signal allows the
Edge #
function to count only lines and not double count during equalization.
Additionally, the
Field Holdoff
can be adjusted so that the oscilloscope
triggers once per frame.
•
Similarly, for progressive video with a tri-level sync, enabling the
Horiz Sync
control and setting the
Horiz Sync
adjustment to the sync time of the probed
video signal allows the
Edge #
function to count only lines and not double
count during vertical sync.
When the horizontal sync control is enabled, press the second
Horiz Sync
softkey; then, turn the Entry knob to set the minimum time the horizontal sync
pulse must be present to be considered valid.
To trigger on a specific line of video
Video triggering requires greater than 1/2 division of sync amplitude with any
analog channel as the trigger source. Turning the trigger
Level
knob in Video
trigger does not change the trigger level because the trigger level is automatically
set to the sync pulse tips.
One example of triggering on a specific line of video is looking at the vertical
interval test signals (VITS), which are typically in line 18. Another example is
closed captioning, which is typically in line 21.
1
Press the
[Trigger]
key.
2
In the Trigger Menu, press the
Trigger
softkey; then, turn the Entry knob to
select
Video
.
3
Press the
Settings
softkey, then press the
Standard
softkey to select the
appropriate TV standard (NTSC).
Содержание InfiniiVision 3000 X Series
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Страница 48: ...48 Keysight InfiniiVision 3000 X Series Oscilloscopes User s Guide 1 Getting Started...
Страница 62: ...62 Keysight InfiniiVision 3000 X Series Oscilloscopes User s Guide 2 Horizontal Controls...
Страница 72: ...72 Keysight InfiniiVision 3000 X Series Oscilloscopes User s Guide 3 Vertical Controls...
Страница 122: ...122 Keysight InfiniiVision 3000 X Series Oscilloscopes User s Guide 6 Digital Channels...
Страница 128: ...128 Keysight InfiniiVision 3000 X Series Oscilloscopes User s Guide 7 Serial Decode...
Страница 134: ...134 Keysight InfiniiVision 3000 X Series Oscilloscopes User s Guide 8 Display Settings...
Страница 182: ...182 Keysight InfiniiVision 3000 X Series Oscilloscopes User s Guide 11 Trigger Mode Coupling...
Страница 200: ...200 Keysight InfiniiVision 3000 X Series Oscilloscopes User s Guide 12 Acquisition Control...
Страница 210: ...210 Keysight InfiniiVision 3000 X Series Oscilloscopes User s Guide 13 Cursors...
Страница 252: ...252 Keysight InfiniiVision 3000 X Series Oscilloscopes User s Guide 15 Mask Testing...
Страница 256: ...256 Keysight InfiniiVision 3000 X Series Oscilloscopes User s Guide 16 Digital Voltmeter...
Страница 290: ...290 Keysight InfiniiVision 3000 X Series Oscilloscopes User s Guide 19 Print Screens...
Страница 324: ...324 Keysight InfiniiVision 3000 X Series Oscilloscopes User s Guide 21 Web Interface...
Страница 344: ...344 Keysight InfiniiVision 3000 X Series Oscilloscopes User s Guide 22 Reference...
Страница 370: ...370 Keysight InfiniiVision 3000 X Series Oscilloscopes User s Guide 24 FlexRay Triggering and Serial Decode...
Страница 424: ...424 Keysight InfiniiVision 3000 X Series Oscilloscopes User s Guide 28 UART RS232 Triggering and Serial Decode...