RIGOL Chapter 2 Vertical System Setting
2-6 MSO4000/DS4000 User’s Guide
To Specify the Bandwidth Limit
Setting the bandwidth limit can reduce display noise. For example, the signal under
test is a pulse with high-frequency oscillations.
When bandwidth limit is disabled, the high frequency components of the signal
under test can pass the channel.
Enable bandwidth limit and limit the bandwidth to 20 MHz, 100 MHz or 200
MHz
[1]
; the high-frequency components of the signal under test that exceed 20
MHz, 100 MHz or 200 MHz are attenuated.
Press CH1 BW Limit and turn the multi-function knob to select the desired
bandwidth limit state (the default is OFF). You can also press BW Limit continuously
to switch the current state of bandwidth limit. When the bandwidth limit (20 MHz,
100 MHz or 200 MHz) is enabled, the label as shown in the figure below is displayed
in the channel status label at the bottom of the screen and the character “BW” under
CH1 is illuminated.
Note
[1]
:
MSO405X/DS405X/MSO403X/DS403X: support 20 MHz, 100 MHz and 200 MHz bandwidth limits.
MSO402X/DS402X: support 20 MHz and 100 MHz bandwidth limits.
MSO401X/DS401X: only support 20 MHz bandwidth limit.
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