Rigol DHO900 User Manual page 96

Triggering the Oscilloscope
Source Selection
Click or tap the Source drop-down button to select CH1-CH4. For details, refer to
Trigger Source
label at the top of the screen.
Only when you select the channel that has signal inputs as the trigger source, can you
obtain a stable trigger.
Edge Type
In Slope item, select the edge type from which the input signal passes through the
trigger level.
• Rising: starts timing when the rising edge of the input signal passes through the
trigger level.
• Falling: starts timing when the falling edge of the input signal passes through
the trigger level.
• Either: starts timing when either edge of the input signal passes through the
trigger level.
Timeout Value
Timeout value represents the maximum time that the signal remains idle before the
signal passes through the trigger level. Click or tap the input field of Timeout, and
then use the pop-up numeric keypad to set the timeout value of Timeout trigger. You
can also use the corresponding multipurpose knob to set the value.
Trigger Mode
In Sweep, select Auto, Normal, or Single as the trigger mode. For details, refer to
descriptions in
Trigger Parameter Setting
You can refer to
Trigger Level
Click or tap the Level input field to set the trigger level with the pop-up numeric
keypad. You can also use the front-panel trigger level knob or the corresponding
multipurpose knob to set the trigger level. For details, refer to descriptions in
Level
. The current trigger level is displayed in the trigger information label at the top
of the screen.
DHO800 User Guide
82
. The selected trigger source is indicated in the trigger information
Trigger Mode
.
Noise Rejection
to set the noise rejection under this trigger type.
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Trigger