■ Video Trigger：Trigger on fields or lines of standard video signals.
Option
Setting
Introduction
Table 2-18 Functional Manu of Video Trigger 1:
Type
Video
When you select the video type, put the couple set
to the AC, then you could trigger the NTSC,PAL
and SECAM video signal.
Source
CH1
CH2
Select the input source to be the trigger signal.
EXT
EXT/5
Ext and Ext/5 use the signal applied to the EXT
TRIG connector as the source.
Polarity
(Normal)
Normal triggers on the negative edge of the
sync pulse.
(Inverted)
Inverted triggers on the positive edge of the
sync pulse.
Sync
Line Num
All lines
Odd field
Even Field
Select appropriate video sync.
Next Page
Page 1/2
Enter the second page of Video trigger menu.
36
Digital
S
torage
O
scilloscope
Digital Storage Oscilloscope
37
Table 2-19 Functional Manu of Video Trigger 2:
Option
Setting
Introduction
Type
Video
When you select the video type, put the couple
set to the AC, then you could trigger the NTSC,
PAL and SECAM video signal.
Standard
NTSC
Pal/Secam
Select the video standard for sync and line
number count.
Mode
Auto
Use this mode to let the acquisition free-run in the
absence of a valid trigger; This mode allows an
untriggered, scanning waveform at 100 ms/div or
slower time base settings.
Normal
Use this mode when you want to see only valid
triggered waveforms; when you use this mode,
the oscilloscope does not display a waveform until
after the first trigger.
Single
when you want the oscilloscope to acquire a
single waveform, press the SINGLE button.
Set up
Enter the Trigger setup menu.
Next Page
Page 2/2
Return the first page of Video Trigger menu.
