Bandwidth Limit; Probe Ratio - Rigol DS1000Z-E Series User Manual

Chapter 2 To Set the Vertical System

Bandwidth Limit

DS1000Z-E supports the bandwidth limit function which can reduce the display noise.
For example, the signal under test is a pulse with high frequency oscillation.


Press CH1, then press BW Limit continuously to switch the bandwidth limit state
(the default 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.
Note:
high frequency components of the signal.

Probe Ratio

DS1000Z-E allows user to set the probe attenuation ratio manually. Press CH1 
Probe and use
are as shown in the table below.
Table 2-1 Probe Ratio
Menu
0.01X
0.02X
0.05X
0.1X
0.2X
0.5X
1X
2X
5X
10X (the default value)
20X
50X
100X
200X
500X
1000X
DS1000Z-E User Guide
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When the bandwidth limit is disabled, the high frequency components of the
signal under test can pass the channel.
When limiting the bandwidth to 20 MHz, the high frequency components of the
signal under test that exceed 20 MHz are attenuated.
Bandwidth limit can reduce the noise as well as attenuate or eliminate the
to select the desired probe ratio. The probe ratio values available
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Attenuation Ratio
(display amplitude of the signal : actual
amplitude of the signal)
0.01:1
0.02:1
0.05:1
0.1:1
0.2:1
0.5:1
1:1
2:1
5:1
10:1
20:1
50:1
100:1
200:1
500:1
1000:1
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