Bandwidth Limit; Probe Ratio - Rigol MSQ7054 User Manual

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Bandwidth Limit

MSO/DS7000 series 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 disabled, the high frequency components of the

signal under test can pass the channel.
When you enable the bandwidth limit and limit it to 20 MHz or 250 MHz, the high

frequency components found in the signal under test that are greater than 20
MHz or 250 MHz are attenuated.
Press 1 to open the setting menu of CH1.Then, press BW Limit continuously or
rotate the multifunction knob
the knob to select it. By default, it is OFF. When the bandwidth limit is enabled, the
character "B" will be displayed in the channel status label at the bottom of the screen,
as shown in the figure below. You can also enable the touch screen, and then tap the
CH1 setting menu to select the desired bandwidth limit.
The bandwidth limit that you select is based on the bandwidth of your oscilloscope
model, as shown in Table 2-1.
Table 2-1 Bandwidth Limit
Bandwidth of the Oscilloscope
Model
100 M (MSO7014/DS7014)
200 M (MSO7024/DS7024)
350 M and 500 M
(MSO7034/MSO7054/DS7034/DS7054)
Note: Bandwidth limit can not only reduce the noise, but also can attenuate or
eliminate the high frequency components of the signal.

Probe Ratio

MSO/DS7000 series allows you to set the probe attenuation manually. To obtain the
correct measurement results, you must set the probe ratio properly. By default, the
probe ratio is 1X.
Press 1 to open the setting menu of CH1.Then, press Attenuation continuously or
rotate the multifunction knob
enable the touch screen, and then touch the CH1 setting menu to select the desired
2-6
Chapter 2 To Set the Vertical System
to select the desired bandwidth limit. Press down
Available Bandwidth Limit
20 M
20 M
20 M, 250 M
to select the desired probe ratio. You can also
MSO7000/DS7000 User Guide