VOLTCRAFT PC scope module 20 MHz 1-channel 96 null 1 null 8 Bit Digital storage (DSO), Spectrum analyzer : User manual : Page 45

PSO2020

User’s Manual 43

The results of measure display in Information output.

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 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 Slope to “+” which means you select the rising edge.

4) Adjust the Volts/Div and the time base in a proper range for the signal.

5) Drag the trigger level sign on the waveform display screen to proper position. It’s

usually higher a little above the normal level.