User manual
96
Trigger
The Trigger function congures the conditions by which the oscilloscope captures the incoming
signals.
Trigger type
Edge Triggers when the signal crosses an amplitude threshold in either positive or
negative slope.
Video Extracts a sync pulse from a video format signal and triggers on a specic line
or eld.
Pulse Triggers when the pulse width of the signal matches the trigger settings.
Indicators Edge / Pulse Video
(CH1, Edge, Rising edge,
DC coupling)
(CH1, Video, Positive polarity, NTSC
standard)
Trigger parameter
Trigger source CH1, 2 Channel 1, 2 input signals
Line AC mains signal
Ext External trigger input
signal
EXT TRIG
Trigger mode Auto The oscilloscope updates the input signal regardless of the
trigger conditions (if there is no trigger event, the oscilloscope
generates an internal trigger). Select this mode especially
when viewing rolling waveforms at a slow timebase.