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5.Advanced User Guidebook
37
Holdoff
Reset
100 ns – 10 s, turn the M knob to set time interval
before another trigger occur.
Set Holdoff time as default value (100 ns).
2. Video Trigger
Choose video trigger to trigger on fields or lines of NTSC, PAL or SECAM standard
video signals.
Trig menu refer to Figure 5-19.
Figure 5-19 Video trigger menu
Video menu list:
MENU
SETTING
INSTRUCTION
Single Mode
Video
Set vertical channel trigger type as video trigger
Source
CH1
CH2
EXT
EXT/5
Select CH1 as the trigger source
Select CH2 as the trigger source
The external trigger input
1/5 of the external trigger source for increasing range
of level
Modu
NTSC
PAL
SECAM
Select video modulation
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, turn the M
knob to set the line number
Mode
Holdoff
Auto
Holdoff
Reset
Acquire waveform even no trigger occurred
100 ns – 10 s, adjust the M knob to set time interval
before another trigger occur
Set Holdoff time as 100 ns
3. Slope Trigger
Slope trigger sets the oscilloscope as the positive/negative slope trigger within the
specified time.
The Slope Trigger Menu is shown as Figure 5-20.
Figure 5-20 Slope trigger menu
Slope trigger menu list:
MENU
SETTING
INSTRUCTION
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