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Source Selection
Click or tap the drop-down button of Source to select CH1-CH4. For details, refer to
descriptions in
Trigger Source
. The current trigger source is displayed in the trigger
information 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.
Protocol Version
In Version, select the protocol version that matches the signal under test. The
available versions include 1.X, 2.X and Both.
Baud Rate
Click or tap the drop-down button of Baud to select the preset baud rate. The
available baud rates include 1.2 kbps, 2.4 kbps, 4.8 kbps, 9.6 kbps, 19.2 kbps, and etc.
You can also self-define the baud rate.
Sample Position
Sample position is a point within a bit's time. The oscilloscope samples the bit level at
this point. The sample position is represented by the proportion of "the time from the
start of the bit to the sample position" to the "bit time", as shown in the figure below.
Figure 8.37 Sample Position
Click or tap the input field of Sample Position to set it by using the pop-up numeric
keypad. You can also use the corresponding multipurpose knob to set the value. The
settable range is from 10% to 90%.
Triggering the Oscilloscope
Copyright ©RIGOL TECHNOLOGIES CO., LTD. All rights reserved.
DHO1000 User Guide
113
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