October 2014
Page
43
3.3.1
Single Trigger
Single trigger has four modes: edge trigger, video trigger, pulse trigger and
slope trigger
Edge Trigger
: It happens when the trigger input passes through a given
level along the set direction.
Video Trigger
: Carry out field or line video trigger on the standard video
signal.
Pulse Trigger
: Use this trigger type to catch pulses with certain pulse
width.
Slope Trigger
: The oscilloscope begins to trigger according to the signal
rising or falling speed.
The four trigger modes in Single Trigger are described respectively as follows:
►
Edge Trigger
Under the Edge Trigger mode, a trigger happens in the trigger threshold
value of the input signal edge. When the Edge Trigger is selected, a trigger
will occur in the rising or falling edge of the input signal.
The Edge Trigger Menu is shown as Fig. 39.
Figure 39.
Edge trigger menu.
