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3.4 Detailed information analysis of the signal
The detailed information of a noise signal is to be known when the noise signal is
displayed on the oscilloscope, and the signal may contain much information that
cannot be observed on the display screen.
3.4.1 Observe the noise signal
When the signal is displayed as a noise, the noise is suspected to cause a problem of
the circuit, and the following steps can be carried out for analyzing the noise better:
1. Press [ACQUIRE] to display the “ACQUIRE” menu.
2. Press the “ACQUIRE MODE” key or revolve the [UNIVERSAL] knob to select “PEAK
VALUE DETECTION”.
3.4.2 Separate the signal from the noise
Carry out the following steps to reduce random noise in the display screen:
1. Press [ACQUIRE] to display the “ACQUIRE” menu.
2. Press the “ACQUIRE MODE” option key or revolve the [UNIVERSAL] knob to select
“AVERAGE VALUE”.
3. Press the “AVERATE TIME ” option key to check the influence caused to the
waveform by changing the frequency of operating average operation, wherein the
average operation can reduce the random noise and make the detailed information
of the signal be easily checked.
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