Rigol DHO804 User Manual

For example, to get a stable trigger on the repetitive pulse burst as shown in the
figure below, set the holdoff time to be greater than t1 but less than t2.
Figure 8.2 Trigger Holdoff
Click or tap the trigger information label (as shown in the figure below) at the top of
the screen or press the front-panel
key to open the "Trigger" menu. Click or
tap the input field of
Holdoff to set the holdoff time (the holdoff to this time when
the waveforms are stably triggered) with the pop-up numeric keypad. You can also
use the corresponding multipurpose knob to set the value. The adjustable range of
the holdoff time is from 8 ns (default) to 10 s.
8.6 Noise Rejection
Noise rejection can reject the high frequency noise in the signal and reduce the
possibility of triggering the oscilloscope by mistake.
Click or tap the trigger information label (as shown in the figure below) or press the
front-panel
key to open the "Trigger" menu. Click or tap the Noise Reject
on/off switch to enable or disable the noise rejection function.
8.7 Trigger Type
This series oscilloscope provides the following trigger types.
Triggering the Oscilloscope
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Rigol DHO804 Specifications

General

Bandwidth	70 MHz
Channels	4
Waveform Capture Rate	1, 000, 000 wfms/s
Vertical Sensitivity	1 mV/div to 10 V/div
Vertical Resolution	12 bits
Interfaces	USB, LAN, HDMI
Input Impedance	1 MΩ ± 1%
Max Input Voltage	300 Vrms CAT I
Trigger Types	Edge, Pulse, Slope, Video, Pattern, Duration, Timeout, Runt, Window, Delay, Setup/Hold, Nth Edge, Logic
Protocol Decoding	I2C, SPI, UART, CAN, LIN, FlexRay, I2S
USB Ports	USB Host, USB Device
LAN Port	1