Trigger
60
In the custom video trigger type, the corresponding "Of Fields" varies with the selection of the “Interlace” ratio.
Therefore, the number of fields selected and the number of lines corresponding to each field can also be varied. If
the "Of Lines" is set to 800, the correct relationship between them is as follows:
Of Lines
Of Fields
Interlace
Trigger Line
Trigger Field
800
1
1:1
800
1
800
1, 2, 4 or 8
2:1
400
1, 1~2, 1~4, 1~8
800
1, 2, 4 or 8
4:1
200
1, 1~2, 1~4, 1~8
800
1, 2, 4 or 8
8:1
100
1, 1~2, 1~4, 1~8
Table 9.4
Parameters Relations
5.
Press the
Sync
softkey to select
Any
or
Select
trigger mode.
•
Any
: Trigger on any of the horizontal pulses.
•
Select
: Trigger on the appointed line and field you have set.
–
Press the
Line
or
Field
softkey.
–
to set the value.
list the line numbers per field for each video standard.
Standard
Field 1
Filed 2
NTSC
1 to 263
1 to 262
PAL
1 to 313
1 to 312
HDTV 720P/50, HDTV 720P/60
1 to 750
HDTV 1080P/50, HDTV 1080P/60
1 to 1125
HDTV 1080iP/50, HDTV 1080i/60
1 to 563
1 to 562
Table 9.5
Line Numbers Per Field
Triggering 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.
The example below is set to trigger on field 2, line 124 using the NTSC video standard.
1.
Press the Setup key or use the touchscreen controls to enter the
Trigger Menu
.
2.
Use the touchscreen to select
Type
.
3.
Press the
Source
option, then use the touchscreen to select
CH 1
as the trigger source.
4.
Press the
Standard
option, then select
NTSC
as the trigger source.
5.
Press the
Select
option under
Sync
; set the Line to 22.
6.
Set the
Field
to
1
.