PeakTech 1190 Bedienungsanleitung Seite 203

Fig. 107 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. 108).
Fig. 108 Wave Form of the Noise-Removed Signal
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