Reference
Video Trigger
Options
Settings
Comments
Video
With Video highlighted, triggering
occurs on an NTSC, PAL, or SECAM
standard video signal
Trigger coupling is preset to AC
Source
Ch1, Ch2, Ext, Ext/5
Selects the input source as the trigger
signal; Ext and Ext/5 selections use
the signal applied to the Ext Trig
connector
Polarity
Normal, Inverted
Normal triggers on the negative edge
of the sync pulse; Inverted triggers on
the positive edge of the sync pulse
Sync
All Lines, Line Number,
Odd Field, Even Field, All
Fields
Select an appropriate video sync
Use the multipurpose knob to specify
a line number when you select Line
Number for the Sync option
Standard
NTSC, PAL/SECAM
Select the video standard for sync
and line number count
Key Points
Sync Pulses.
When you choose Normal Polarity, the trigger always occurs on
negative-going sync pulses. If your video signal has positive-going sync pulses,
use the Inverted Polarity selection.
Pulse Width Trigger
Use Pulse Width triggering to trigger on normal or aberrant pulses.
Options
Settings
Comments
Pulse
With Pulse highlighted, triggering
occurs on pulses that meet the trigger
condition de
fi
ned by the Source,
When, and Set Pulse Width options
Source
Ch1, Ch2, Ext, Ext/5
Select the input source as the trigger
signal
When
=,
≠
, <, >
Select how to compare the trigger
pulse relative to the value selected in
the Pulse Width option
Pulse Width
33 ns to 10.0 sec
Use the multipurpose knob to set a
width
Polarity
Positive, Negative
Select to trigger on positive or
negative pulses
Mode
Auto, Normal
Select the type of triggering; Normal
mode is best for most Pulse Width
trigger applications
w w w . e k t
2
. c o m
Electronics
Katrangi
Trading