Rigol DHO800 Series User Manual

Data Type
Select the effective pattern of the data signal in the
Data Type item. It can be set to H
(high level) or L (low level).
Trigger Condition
Set the Setup/Hold trigger condition in the
When item.
• Setup: the oscilloscope triggers when the setup time is smaller than the
specified setup time. After selecting this type, click or tap the input field of
Setup to set the setup time with the pop-up numeric keypad. You can also use
the corresponding multipurpose knob to set the value.
• Hold: the oscilloscope triggers when the hold time is smaller than the specified
hold time. After selecting this type, click or tap the input field of Hold to set the
hold time with the pop-up numeric keypad. You can also use the corresponding
multipurpose knob to set the value.
• Setup/Hold: the oscilloscope triggers when the setup time or hold time smaller
than the specified time value. After selecting this type, click or tap the input field
of
Setup and Hold respectively to set the setup and hold time with the pop-up
numeric keypad. You can also use the corresponding multipurpose knob to set
the values.
Trigger Mode
In
Sweep, select Auto, Normal, or Single as the trigger mode. For details, refer to
descriptions in
Trigger Mode .
Trigger Parameter Setting
You can refer to
Trigger Holdoff and Noise Rejection to set the trigger holdoff and
noise rejection under this trigger type.
Level Selection and Setting
After the trigger condition setting is completed, you need to adjust the trigger level
to correctly trigger the signal and obtain a stable waveform.
Click or tap the
Level A/Level B input field to set the level A/level B with the pop-up
numeric keypad. You can also use the corresponding multipurpose knob to adjust
level A/level B or use the trigger level knob to adjust the level (the focus of the trigger
level knob is the last modified level). For details, refer to descriptions in
Trigger Level .
The current trigger level is displayed in the trigger information label at the top of the
screen.
8.7.12 Nth Edge Trigger
The Nth edge trigger lets you to trigger on the Nth edge that occurs after a specified
idle time. For example, in the waveform as shown in the figure below, the instrument
should trigger on the second rising edge after the specified idle time (the time
Triggering the Oscilloscope
DHO800 User Guide
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Rigol DHO800 Series Specifications

General

Channels	2 or 4 analog channels
Vertical Resolution	12-bit
Vertical Sensitivity	1 mV/div to 10 V/div
Timebase Range	1 ns/div to 1000 s/div
Power Supply	100-240 VAC, 50/60 Hz
Waveform Capture Rate	1, 000, 000 wfm/s
Interfaces	USB Host, USB Device, LAN
Digital Channels	Optional 16-channel MSO
Protocols Decoding	I2C, SPI, UART, CAN, LIN
Input Impedance	1 MΩ
Trigger Types	Edge, Pulse, Video, Slope, Pattern, Duration, Timeout, Runt, Window