User Manual

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2. video trigger
Select the video mode to trigger on video fields or video lines of NTSC, PAL or SECAM standard video
signals. In video trigger mode, the setting information is displayed at the bottom right of the screen, e.g.:
indicates that video trigger on CH1 and sync type "even" has been selected.
Video trigger menu:
Menu
Setting
Description
Trigger Mode
Video
Set vertical trigger type as video triggering
Source
CH1
CH2
EXT
EXT/5
Channel 1 as trigger signal.
Channel 2 as trigger signal.
External trigger as trigger signal.
1/5 of the external trigger as trigger signal.
Modu
NTSC
PAL
SECAM
Select video modulation
Sync
Line
Field
Odd
Even
Line NO.
Synchronous trigger in video line
Synchronous trigger in video field
Synchronous trigger in odd video field.
Synchronous trigger in straight video field.
Synchronous trigger in created video line; set the line number
using the knob.
Fashion
Holdoff
Car
Capture waveform even if no trigger occurs.
3. slope trigger (slope)
Slope mode allows the oscilloscope to trigger on the rising/falling edge of a signal within a specified time
period. In slope trigger mode, the setting information is displayed at the bottom right of the screen, e.g.:
indicates that slope trigger is selected on CH1, slope rising and the difference between
the up-level and low-level threshold is 0.00mV.
Slope Trigger Menu:
Menu
Setting
Description
Trigger mode
Slope
Set vertical trigger type as slope triggering
Source
CH1
CH2
Channel 1 as trigger signal.
Channel 2 as trigger signal.
When
slope
Set flank
Set the slope condition; set the time using the Multi ( )
knob.
Threshold
&Slew Rate
High level
Low level
Slew Rate
Adjust the high level using the G knob.
Adjust the low level using the G knob.
Rise rate = (High level - Low level)/ settings
Fashion
Holdoff
Car
Normal
Single
Holdoff
Reset
Capture waveform even if no trigger occurs
Capture waveform when a trigger occurs.
When trigger occurs capture a wave and then stop it
100ns~10s, use the Multi ( ) knob to set the time interval
before another trigger occurs.
Set the holdoff time as 100ns.