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4. Turn the “LEVEL” knob to adjust the trigger level

5. Press the “SINGLE” button to start capturing. (Make sure Run/Stop button is green) When the trigger

conditions are met, data appears on the display representing the data points that the oscilloscope obtained

with one acquisition. Pressing the RUN/STOP button again rearms the trigger circuit and erases the

display.

4.4 Analyzing signal details

Scenario: You have a noisy signal displayed on the oscilloscope and you need to learn more about it. You

suspect that the signal contains more details than you can now see on the display.

4.4.1 Looking at a Noisy Signal

The signal appears noisy and you suspect that noise is causing problems in your circuit. To better analyze

the noise, follow these steps ：

Press the “ACQUIRE button to see the acquire menu.

Press the “Peak Detect” option button.

If necessary, press the “DISPLAY” button to see the display menu 。 Adjust the contrast for better

visibility of the noisy signal.

Note: Peak detect emphasizes noise spikes and glitches in your signal, especially when the time base is set

to a slow setting.

4.4.2 Separating the Signal from the Noise

To reduce random noise in the oscilloscope display, follow these steps:

1. Press the “ ACQUIRE ” button to display the acquire menu.

2. Press the Average button 。

3. Press the Averages button and vary the number and monitor the effect on the waveform.

Averaging reduces random noise and makes it easier to see detail in a signal.

4.5 Triggering on a Video Signal

Scenario: Observe the video circuit in an analog TV set. Use the video trigger to obtain a stable display.

4.5. 1Triggering on a Video Field

To trigger on the video field, follow these steps:

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