R3132 Series Spectrum Analyzer Operation Manual
3.3.29 TRIG Key (Trigger)
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3.3.29 TRIG Key (Trigger)
This section describes the menu displayed when the TRIG key is pressed.
Trig Source
Displays the Trig Source menu which is used to set trigger condi-
tions.
Free Run
Sweep is repeated automatically.
Line
Sweep is executed synchronously with AC power supply.
TV-V
Sweep is executed synchronously with vertical synchronous sig-
nals of TV signals.
TV-H
Sweep is executed synchronously with horizontal synchronous
signals of TV signals.
Video Trig
Sweep is executed synchronously with video signals.
Ext Trig
Sweep is executed synchronously with external trigger signals.
Trigger level: 0 to + 5V
•
When the OPT73, FM Demodulation function, is turned on, pressing the TRIG key displays the Trig-
ger menu.
Free Run
Sweep is repeated automatically.
Line
Sweep is executed synchronously with AC power supply.
Video Trig
Sweep is executed synchronously with video signals.
Ext Trig
Sweep is executed synchronously with external trigger signals.
Trigger level: 0 to + 5V
Slope +/-
Switches b and - of the polarity for the trigger slope.
Trig Delay
Sets the delay time in reference to the trigger point or sets the pre-
trigger time.
This is available only when the zero span is selected.
Slope (TV Polarity) +/-
Switches polarities b and - for the trigger slope or video
modulation of TV signals.
+:
Sweep is started at the rise of a trigger. In the TV trigger
mode, sweep is started synchronously with a video
modulation signal of + polarity.
-:
Sweep is started at the fall of a trigger. In the TV trigger
mode, sweep is started synchronously with a video
modulation signal of - polarity.