Rigol DHO900 User Manual page 91

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.
Pattern Setting
The following five patterns are available:
• 1: sets the pattern of the channel selected to "1", i.e. the voltage level is higher
than the trigger level of the channel.
• 0: sets the pattern of the channel selected to "0", i.e. the voltage level is lower
than the trigger level of the channel.
• X: sets the pattern of the channel selected to "X", i.e. this channel is not used as a
part of the pattern. When all channels in the pattern are set to "X", the
oscilloscope will not trigger.
•
•
The Left/Right arrow key indicates moving left/right to switch the channel pattern.
"All" indicates all bits. Select a pattern for a channel and then click or tap All. The
patterns of all the other channels will be set to the currently selected pattern.
Only one edge (rising or falling edge) can be specified in the pattern. If one edge item
is currently defined and then another edge item is defined in another channel in the
pattern, then a prompt message "Invalid input" is displayed.
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
noise rejection under this trigger type.
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.
Copyright ©RIGOL TECHNOLOGIES CO., LTD. All rights reserved.
. The selected trigger source is indicated in the trigger information
: sets the pattern to the rising edge of the channel selected.
: sets the pattern to the falling edge of the channel selected.
Trigger Mode
.
Trigger Holdoff
and
Triggering the Oscilloscope
Noise Rejection
to set the trigger holdoff and
Trigger
DHO800 User Guide
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