Teledyne T3DSO1000, Руководство пользователя, Страница: 86 / 227

68 User Manual
The table below takes Of Lines as 800 as an example to explain the relation between
Of Lines , Of Fields , Interlace , Trigger Line and Trigger Field .
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
5. Press the Sync softkey to select Any or Select trigger mode.
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Any : trigger on any of the horizontal sync pulses
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Select : trigger on the appointed line and field you have set. Press the Line or
Field softkey; then turn the Universal Knob to set the value.
The following table lists the line numbers per field for each video standard.
Standard Field 1 Field 2
NTSC 1 to 262 1 to 263
PAL 1 to 312 1 to 313
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 562 1 to 563
The following are exercises to familiarize you with video triggering.
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To trigger on a specific line of video
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To use Custom video trigger
To Trigger 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 set to trigger on field 2, line 124 using the NTSC video standard.
1. Press the Setup button on the front panel to enter the TRIGGER system function
menu.
2. Press the Type softkey; then use the Universal Knob to select Video and push down
the knob to confirm.
3. Press the Source softkey; turn the Universal Knob to select CH1 as the trigger source,
and press the knob to confirm.
4. Press the Standard softkey; turn the Universal Knob to select NTSC, and press the
knob to confirm.
5. Press the Sync softkey and set the option to Select ; press the Line softkey and then
turn the universal to select 022 and push the knob to confirm; press the Field softkey
and then turn the Universal Knob to select 1 and push the knob to confirm.