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SDS800X HD Series User Manual
78 in t .si g le n t .c o m
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
Interlace
Of Fields
Trigger Line
Trigger Field
800
1:1
1
800
1
800
2:1
1/2/4/8
400
1/1~2/1~4/1~8
800
4:1
1/2/4/8
200
1/1~2/1~4/1~8
800
8:1
1/2/4/8
100
1/1~2/1~4/1~8
Set the video trigger for a video signal
Touch Sync for trigger mode selection, video trigger mode has "Any" and "Select" options. In "Any"
mode, the video signal can be triggered on any line that meets the conditions. In the "Select" mode,
the signal can be triggered by a specified field and a specified line.
For progressive scanning signals (e.g. 720p/50, 720p/60, 1080p/50, 1080p/60), only the specified line
can be selected to trigger when the synchronization mode is “Select”.
For interlaced scanning signals (such as NTSC, PAL, 1080i/50, 1080i/60, Custom), when the
synchronization mode is "Select", the specified line and the specified field can be selected to trigger.
The following table shows the corresponding relations between line and field for all video standards
(except for Custom)
Standard
Field 1
Field 2
NTSC
1 to 263
1 to 262
PAL
1 to 313
1 to 312
HDTV 720P/50 , 720P/60
1 to 750
HDTV 1080P/50 , 1080P/60
1 to 1125
HDTV 1080i/50 , 1080i/60
1 to 563
1 to 562
To gain familiarization with the video trigger, try these two examples:
Trigger on a specific line of video (NTSC standard)
Use “Custom” to trigger video signals
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