User’s Manual of
OWON
Colour Digital Storage Oscilloscope
Fig. 56
Wave Form of the Signal Containing Noises
Separate Noises from the Signal
When analyze the wave form of a signal, you should remove the noise contained in it.
For the reduction of the random noise in the oscilloscope display, please operate the
instrument according to the following step:
1.
Press the
ACQUIRE
button to show the
ACQU MODE
menu.
2.
Press the
F3
menu selection button and choose
Average
.
3.
Press the
F4
menu selection button and observe the wave form obtained from
averaging the wave forms 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. 57).
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