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4.Advanced User Guidebook
26
Choose video trigger to trigger on fields or lines of NTSC, PAL or SECAM standard
video signals.
Push the Trigger Menu button to display the Trigger menu on the right. Select Type as
Single in the right menu. Select Single as Video in the right menu.
In Video Trigger mode, the trigger setting information is displayed on bottom right of the
screen, for example, ，indicates that trigger type is Video, trigger source is
CH1, and Sync type is Even.
Video Trigger menu list:
MENU
SETTING
INSTRUCTION
Type
Single
Set vertical channel trigger type as single trigger.
Single
Video
Set vertical channel single trigger type as video trigger.
Source
CH1
CH2
Select CH1 as the trigger source
Select CH2 as the trigger source
Modu
NTSC
PAL
SECAM
Select video modulation
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Sync
Line
Field
Odd
Even
Line NO.
Synchronic trigger in video line
Synchronic trigger in video field
Synchronic trigger in video odd filed
Synchronic trigger in video even field
Synchronic trigger in designed video line. Press Line
NO. menu item, turn the M knob to set the line number.
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Alternate Trigger (Trigger mode: Edge)
Trigger signal comes from two vertical channels when alternate trigger is on. This mode is
used to observe two unrelated signals. Trigger mode is edge trigger.
Alternate trigger (Trigger Type: Edge) menu list:
Menu
Settings
Instruction
Type
ALT
Set vertical channel trigger type as alternate trigger.
Source
CH1
CH2
Channel 1 as trigger signal.
Channel 2 as trigger signal.
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Coupling
AC
DC
Block the direct current component.
Allow all component pass.
Slope
Trigger on rising edge
Trigger on falling edge
Holdoff
100 ns - 10 s, turn the M knob to set time interval
before another trigger occur.
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