Rigol DHO924 DHO900 series user manual

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5.4 To Specify Channel Coupling

You can remove unwanted signals by setting the coupling mode. For example, the

signal under test is a square waveform with DC offset.

Click or tap the channel status label at the bottom of the screen, and then the

Vertical menu is displayed. Click or tap the Coupling drop-down button to select the

coupling mode.

• When the coupling mode is "DC", both the DC and AC components of the signal

under test can pass the channel.

• When the coupling mode is "AC", the DC components of the signal under test

are blocked

• When the coupling mode is "GND", the DC and AC components of the signal

under test are blocked.

After a coupling mode is selected, it is indicated in the channel status label at the

bottom of the screen, as shown in the figure below.

GND

5.5 To Specify Bandwidth Limit

This oscilloscope supports the bandwidth limit function. Setting the bandwidth limit

can reduce the noises in the displayed waveforms. For example, the signal under test

is a pulse with high frequency oscillation.

• When the bandwidth limit is turned off, the high frequency components of the

signal under test can pass the channel.

• When the bandwidth limit is turned on, the high frequency components found in

the signal under test that are greater than the limit are attenuated. This series

supports 20 MHz bandwidth limit.

Click or tap the channel status label at the bottom of the screen, and then the

Vertical menu is displayed. Click or tap the BW Limit drop-down button to select the

specified bandwidth. When the bandwidth limit is enabled, the specific bandwidth

Vertical System

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Rigol DHO924 oscilloscope