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Fig.6-4 Waveform of the Signal Containing Noises
Separate Noises from the Signal
When analyze the waveform of a signal, you should remove the noise in it. For the
reduction of the random noise in the oscilloscope display, please operate the
instrument according to the following steps:
(1) Press the Acquire button to display the Acquire menu.
(2) Press the H1 button to display ACQU Mode menu.
(3) Press the F3 button, turn the M knob and observe the waveform obtained from
averaging the waveforms of different average number.
After the averaging, the random noise is reduced and the detail of the signal is easier
to be observed. Shown as follows, after the noise is removed, the burrs on the rising
and falling edges appear (see Fig.6-5).
User Manual of Smart Digital Storage Oscilloscope
76
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