Slope Trigger - UNI-T UPO3000E Series User Manual

Video Trigger Menu
Source:
Press the source button to select the trigger source, you can select CH1,
CH2, CH3, CH4, EXT, and EXT/5. The currently selected source is displayed
at the upper right corner of the screen.
Note: Only selecting the channel with connected signals as a trigger source
can obtain a steady trigger.
Video Format:
Press the video format button to select PAL
(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, 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).
Tip: In order to observe the waveform details more clearly in the video signal,
you can set the memory depth a little bigger. The UPO3000E series utilize
the UNI-T original digital three-dimensional 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.
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， NTSC, and SECAM.

5.5 Slope Trigger

When slope trigger is selected, trigger occurs when the rise or fall slope
value matches the value in settings.
Press TRIG MENU type, and select slope by the Multipurpose knob.
You can also switch the trigger type by consecutively pressing the type key,
then press the Multipurpose knob to confirm.
At this time, the trigger setting information
the upper right corner of the screen, the trigger type is slope, the trigger
source is CH1, and the threshold high level or low level is 0.00V.
Slope Trigger Menu
Source:
Press the source button to select the trigger source, you can select CH1,
CH2, CH3, and CH4. The currently selected source is displayed at the upper
right corner of the screen.
Note: Only selecting the channel with connected signals as a trigger source
can obtain a steady trigger.
Trigger Setting:
Please refer to the Trigger Setting in the "Edge Trigger" section for more
details.
Slope Setting:
Press the slope setting button to enter the slope setting menu.
Slope:
Press the slope button to select the slope trigger edge: rising edge and falling
edge.
(1) Rising edge: Performs slope trigger by using the rising edge of the trigger
signal.
(2) Falling edge: Performs slope trigger by using the falling edge of the trigger
signal.
is displayed at