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Foxwell OS100 Digital Oscilloscope User’s Guide_English Version_V1.00
4.2 Capturing a Single-Shot Signal
To capture a single event, it needs to gather some pre-test knowledge of the signal in order to set
up the trigger level and slope correctly. For example, if the event is derived from 3.3V COMS logic,
a trigger level of 1.2 or higher Volts should work on a rising edge. Do these steps as follows:
1. Set the probe and the channel attenuations to X 10.
2. Set up the trigger in the Trigger Menu, or in the Trigger Setting window.
1) Adjust the Trigger Mode to Edge.
2) Set the Trigger Sweep to Single.
3) Set the Trigger Source to CH1.
4) Set the Trigger Slope to
“
+
”
which means you select the rising edge.
5) Adjust the Volts/Div and the time base in a proper range for the signal.
6) Drag the trigger level sign on the waveform display screen to proper position. It ally higher a
little above the normal level.
7) Click
START
button to start capturing. When the trigger conditions are met, data appears on
the display representing the data points that the oscilloscope obtained with one acquisition.
This function helps to capture the signal occurrence easily, such as the noise with large amplitude;
set the trigger level higher a little above the normal level and press and wait. When noise occurs,
the instrument will record the waveform before and after the trigger.
4.3 The Application of the X-Y Operation
X-Y
Plot acts to analyze correlation of data of two channels. Lissajous diagram is displayed in the
