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4-4-5. Limiting the waveform bandwidth
Background
Bandwidth limitation puts the input signal into a
20MHz (−3dB) low-pass filter. This function is
useful for cutting off high frequency noise to see
the clear waveform shape.
Procedure
1. Press the Channel key.
CH 1
2. Press
BW Limit
to turn on or
off the limitation. When
turned on, the BW indicator
appears next to the Channel
indicator in the display.
BW Limit
Off
Example
BW Limit Off
BW Limit On
4-4-6. Probe attenuation level and type
Background
A signal probe has an attenuation switch to lower
the original DUT signal level to the oscilloscope
input range, if necessary. The probe attenuation
selection adjusts the vertical scale so that the
voltage level on the display reflects the real value,
not the attenuated level.
Procedure
1. Press the Channel key.
CH 1
2. Press Probe repeatedly to
select the attenuation level.
Probe
x1
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