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G
S
ETTING
TARTED
Trigger level is specified in volts and remains unchanged when you change the
vertical gain settings or offset.
The amplitude and range of the trigger level are limited as follows:
± 4.1 screen divisions with a channel as the trigger source
± 0.5 V with EXT as the trigger source
± 5 V with EXT/10 as the trigger source
None with LINE as the trigger source (zero crossing is used).
Edge Trigger Set Up
1.
Touch the trigger descriptor label at the bottom right of the display.
2.
Or, touch Trigger Trigger Setup on the menu bar.
3.
Either way, the following dialog appears at the bottom of the display.
4.
Touch inside the Source field in the Setup section and select an input from
the pop-up menu:
5.
Select a trigger coupling from the Coupling section. Coupling refers to the
type of signal coupling at the input of the trigger circuit. You can choose from
these coupling types:
45
M
ANUAL
C1 through C4 are abbreviations for Channel 1 through
Channel 4.
Ext and Ext/10 allow triggering on the External Input of
the oscilloscope. Ext input is +/-0.5V. Ext/10 input is+/-
5.0V.
Line is for triggering on the Positive or Negative
excursion of the AC power line (not available when using
battery or DC input power).
WSMXs-B-GSM-E Rev A
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