Application Examples
Looking at a Noisy Signal
The signal appears noisy and y ou suspect that noise is causing problems
in your circuit. To better analyze the noise, follow these steps:
1. Push th e Acquire Menu button.
2. Push the Mode bottom button.
3. Select the Peak Detect acquisitio n m od e.
4. Increase the Waveform Intensity control to see the noise more
easily.
Peak detect emphasizes noise spikes and glitches in your signal as
narrow as 1 ns, even when the time b ase is set to a slow setting.
The Reference chapter h as more information about peak-detect and the
other acquisition modes. (See page 65.)
Separating the Signal from N oise
Now you want to analyze the signal shape and ignore the noise. To
reduce random noise in the oscilloscope display, follow these steps:
1. Push th e Acquire Menu button.
2. Push the Mode bottom button.
3. Select the Average acquisition mode.
TDS3000C Series O scilloscope User Manual 39
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