Trigger Setting:
Please refer to the Triggle Setting in the Edge Trigger section.
5.4 Video Trigger
The video signal may contain the image information and the time sequence information, and it has a variety of standards
and formats. The UPO2000E can be triggered on the field or line of the NTSC (National Television Standards Committee),
PAL (Phase Alternating Line), SECAM (Sequential Couleur A Memoire) standard video signals.
Press the TRIG MENU → type , and select video with the Multipurpose knob. User can also switch trigger type by
continuously pressing the type button, and then press the Multipurpose knob to confirm.
At this time, the trigger setting is displayed at the upper right corner of the sreen, the trigger type is video, the trigger
source is CH1.
The Video Trigger Menu
Source:
Press the source button to select any of CH1, CH2, CH3, CH4, EXT, and EXT/5. Thr selected source will be displayed
on the upper right corner of the screen.
Note: only selecting the channel with connected signals as the trigger source can obtain a stable trigger.
Video Format:
Press the video format button to select PAL, NTAC and SECAM.
(1) PAL: The frame frequency is 25 frames per second, the TV scan line is 625 lines, the odd field is in the front and the
even field is in the rear.
(2) NTSC: The field frequency is 60 fields per second, and the frame frequency is 30 frames per second. The TV scan line
is 525 lines. The even field is in the front and the odd field is in the rear.
(3) SECAM: The frame frequency is 25 frames per second, the TV scan line is 625 lines, interlaced scanning.
Video Synchronization
Press the video synchronization button to select the even field, odd field, all lines and specified lines.
(1) Even field: Set to trigger and synchronize on the even field of the video signal.
(2) Odd field: Set to trigger and synchronize on the odd field of the video signal.
(3) All lines: Set to trigger and synchronize on the line signal of the video signal.
(4) Specified lines: Set to trigger and synchronize on the specified video lines. You can use the Multipurpose knob to
specify the line number, and its setting range is from 1 to 625 (PAL/SECAM), or from 1 to 525 (NTSC).
Note: In order to observe the waveform details in the video signal, you can set the memory depth a little bigger.
The UPO2000E series utilize the UNI-T original digital 3D technology, it uses a multi-level grayscale display function so
that different brightness can reflect the frequency of different parts of the signal. Experienced users can quickly judge the
signal quality during the debugging process and find the unusual conditions.
5.5 Slope Trigger
When slope trigger is selected, trigger occurs when the rise/fall slope value matches the set value.
Step: Press the TRIG MENU → type , select slope with the Multipurpose knob. User can also switch the trigger type by
continuously pressing the type button, and then press the Multipurpose knob to confirm.
At this time, the trigger setting is displayed at the upper right corner of the sreen, the trigger type is
slope, the trigger source is CH1, and the trigger level is 0.00V.
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