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GW Instek GDS-2000A series User Manual User Manual

Page 149

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CONFIGURATION

149

Event

Sets the number of events (1 ~ 65535)
passed after the trigger event, until the
real trigger timing.

Set to
Minimum

Sets the source trigger to the minimum
time.

When
(Pulse Width)

Sets the pulse width (10ns ~ 10s) and the triggering
condition.

>

Longer than =

Equal to

<

Shorter than ≠

Not equal to

Threshold
(Pulse Width)

Sets the amplitude threshold level for the pulse
widths.

Threshold

–XXV ~ +XXV, user-set level

Set to TTL

1.4V

Set to ECL

-1.3V

Set to 50%

Sets the threshold to 50%

Standard
(Video)

NTSC

National Television System
Committee

PAL

Phase Alternate by Line

SECAM

SEquential Couleur A Memoire

Polarity
(Pulse Width,
Video)

Positive polarity (triggered on the high
to low transition)

Negative polarity (triggered on the
low to high transition)

Polarity
(Pulse Runt)

Positive polarity (positive runt)

Negative polarity (negative runt)

Either (either negative or positive
runt)

Trigger On

Selects the trigger point in the video signal.