UTD1000 User Manual
Illustration 4 : Reducing random noise of
signals
If the signal being measured is stacked with random
noise, you can adjust the setups of your Oscilloscope to
filter or reduce the noise, so it will not cause interference
to the signal during measurement. (Waveform is shown
below)
waveform. See the previous illustration for operation
instruction. See the previous chapter for guidance on
adjusting the horizontal time base and vertical range.
3.Improving trigger by setting trigger coupling.
ķ
Press [TRIGGER] to display the trigger setup menu.
ĸ
Press [F3] to set trigger coupling in the trigger setup
menu to low frequency suppression or high frequency
suppression. By selecting low frequency suppression a
high-pass filter is set up. It filters low frequency signal
quantities under 80kHz and allows high frequency signal
quantities to pass through. If you select high frequency
suppression a low-pass filter is set up. It filters high
frequency signal quantities higher than 80kHz and
allows low frequency signal quantities to pass through.
By setting low frequency suppression or high frequency
suppression, you can suppress low frequency or high
frequency noise respectively and achieve a stable
trigger.
4.Reducing display noise by setting the acquisition
mode.
If the signal being measured is stacked with random
noise and the waveform is too coarse as a result, you
Figure 3-4 Reducing random noise of signals
Steps :
1.As in the previous illustration, set the attenuation
factor of the probe and Channel A.
2.Connect the signal to ensure stable display of
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