GW Instek GDS-122 User Manual - Manual (Page 25)

Using the Oscilloscope
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Viewing noisy signals
Overview Using the Average acquisition mode, you can
smooth out the displayed waveform by averaging
multiple data samples. The number of averaging is
selectable from 4, 16, 64, and 128.
Note • In order for the average mode to work in the
best way, the waveform must be repetitive.
• As the number of averaging increases, the
slower the waveform update becomes.
Panel operations 1. Press the MENU key and use the Up/Down
keys to select ACQU MODE menu.
2. Press F3 (Average) to activate the average
mode.
3. Press F4 (Averages) repeatedly to select the
number of averaging.
MENU ACQU MODE Average
16
Averages
4
128
64
F3 F4
For other acquisition settings details, see page
174H
30.
Example
Average off Average 16
GDS-122 User Manual
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Viewing variations in a signal
Overview Using the persistence display function, you can
define sets how long the old waveforms remain in
the display, allowing observation of waveform
variations. You can select the persistence time
from 1, 2, and 5 sec. When choosing the Infinite
mode, the GDS‐122 keeps all past traces of the
displayed waveform.
Panel operations 1. Press the MENU key and use the Up/Down
keys to select DISP SET menu.
2. Press F2 (Persist) repeatedly to select the
persistence time.
MENU DISP SET
OFF
Persist
Infinite
1/2/5 sec
F2
For other display settings details, see page
175H
36.
Example
Persistence off Persistence infinite