GW Instek GBS-1000 Series User Manual - Manual (Page 125)

CONFIGURATION
125
Single GBS-1000 acquires a
waveform once when a
trigger event occurs, then
stops acquiring. Press the
Run/Stop key to acquire a
waveform again.
Run/Stop
Auto level When turning this function ON, GBS-1000
automatically adjusts the trigger level to the center
amplitude of the waveform.
Holdoff The holdoff function defines the waiting period
before GBS-1000 starts triggering again after a
trigger point. The Holdoff function ensures a
stable display.
Video standard
(video trigger) NTSC National Television System Committee
PAL Phase Alternative by Line
SECAM SEquential Couleur A Memoire
Sync polarity
(video trigger)
Positive polarity
Negative polarity
Video line
(video trigger) Selects the trigger point in the video signal.
field 1 or 2
line 1~263 for NTSC, 1~313 for PAL/SECAM
Pulse condition
(pulse trigger) Sets the pulse width (20ns ~ 10s) and the triggering
condition.
> Longer than = Equal to
< Shorter than ≠ Not equal to
Trigger slope Triggers on the rising edge.
Triggers on the falling edge.