User`s guide

102 5000 Series Oscilloscope User’s Guide
3 Triggering the Oscilloscope
You can select oscilloscope channel 1 or 2, Ext, or Line as the
trigger source on any Agilent InfiniiVision 5000 Series
oscilloscope. The trigger source can also be set to channel 3
and 4 on 4-channel oscilloscopes. You can choose a channel
that is turned off (not displayed) as the source for the edge
trigger.
The selected trigger source is indicated in the upper-right
corner of the display next to the slope symbol:
1 through 4 = oscilloscope channels
E = External trigger
L = Line trigger
Trigger level adjustment
You can adjust the trigger level for a selected oscilloscope
channel by turning the Trigger Level knob. The position of the
trigger level for the channel is indicated by the trigger level icon
(if the channel is on) at the far left side of the display when
DC coupling is selected. The value of the oscilloscope channel
trigger level is displayed in the upper-right corner of the
display.
When Ext (External Trigger) is selected, its level can be adjusted
using the Level knob in the Trigger section of the front panel.
The trigger level is displayed in the upper right corner of the
display.
The line trigger level is not adjustable. This trigger is
synchronized with the power line supplied to the oscilloscope.
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