Example Exercises; To Trigger On A Specific Line Of Video - Agilent Technologies 6000 Series User Manual

Example exercises

To trigger on a specific line of video

6000 Series Oscilloscope User's Guide
Table 8 Line (or count for Generic) numbers per field for each
non-HDTV/EDTV video standard
Video standard Field 1
NTSC 1 to 263
PAL 1 to 313
PAL-M 1 to 263
SECAM 1 to 313
Generic 1 to 1024
Line Number Represents Count
In Generic mode, the line number represents the number of a count instead of a
real line number. This is reflected in the label in the softkey changing from Line to
Count. In the Mode softkey selections, Line:Field 1, Line:Field 2 and
Count:Vertical are used to indicate where the counting starts. For an interlaced
video signal, the counting starts from the rising edge of the first vertical serration
pulse of Field 1 and/or Field 2. For a non-interlaced video signal, the counting
starts after the rising edge of the vertical sync pulse.
Table 9 Line numbers for each EDTV/HDTV video standard
EDTV 480p/60 1 to 525
HDTV 720p/60 1 to 750
HDTV 1080p/24 1 to 1125
HDTV 1080p/25 1 to 1125
HDTV 1080i/50 1 to 1125
HDTV 1080i/60 1 to 1125
The following are exercises to familiarize you with TV
triggering. These exercises use the NTSC video standard.
TV triggering requires greater than 1/2 division of sync
amplitude with any analog channel as the trigger source.
Turning the trigger Level knob in TV trigger does not change the
trigger level because the trigger level is automatically set to the
sync pulse tips.
Triggering the Oscilloscope
Field 2 Alt Field
1 to 262 1 to 262
314 to 625 1 to 312
264 to 525 1 to 262
314 to 625 1 to 312
1 to 1024 1 to 1024 (vertical)
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