GW Instek GDS-2000 series Uer manual - Manual (Page 106)

GDS-2000 Series User Manual
106
Trigger
Trigger configures the condition GDS-2000 captures the incoming
signal.
Trigger type overview
Edge (+Delay) Triggers when the signal crosses an amplitude
threshold in either positive or negative slope.
(for 2CH models only) The advanced Delay trigger
works in tandem with the edge trigger, by waiting
for a specified time or number of event before the
edge trigger starts. This method allows
pinpointing a location in a long series of trigger
events.
Note: when using the delay trigger, trigger source
is limited to Channel 1 or 2.
Delay trigger example (by event)
1 2 3
A
B
C
D
A Ext. trigger input
B Source (CH1 or 2)
C Delay event count (3)
D First triggering point
Delay trigger example (by time)
A
B
C
D
A Ext. trigger input
B Source (CH1 or 2)
C Delay time length
D First triggering point
Video Extracts a sync pulse from a video format signal,
and triggers on a specific line or field.
Pulse Triggers when the pulse width of the signal is too
narrow or too wide compared to the setting.