Oscilloscope Runt Search

We have shared with you several methods of capturing runt waveforms. The ZDS2022 oscilloscope provides you with 11 basic triggers and 21 protocol trigger modes as standard, which is very versatile. In fact, for runt waveforms, the ZDS2022 oscilloscope has another way to play, which is the runt search function!

　　We input a mixed runt signal into the ZDS2022 oscilloscope, press the [Horiz] key, set the storage depth to 112Mpts, turn the horizontal time base knob to set the horizontal time base to 5ms/div, press the [Stop] key, and continue to increase the horizontal time base. Now the question is how to find the runt waveform from this 112Mpts waveform? With such a large amount of data, where should we start?

　　Figure 1 Runt search

　　Now let's take a look at the search function of the ZDS2022 oscilloscope. Since it uses full hardware search, the search speed is very fast! Without further ado, let's try it. Press the [Measure] key, turn on the search enable in the search settings, select the correct source, set the search mode to runt, and set the search type to positive runt. The qualifier is used to further set the width of the runt waveform to make your search conditions more specific. We set the qualifier to none here. Press the [Single] key, and we will see the search results in the upper left corner of the screen. One-click [Zoom] to zoom in, press the navigation key, and reduce the horizontal time base. In the magnified area, we can see the searched runt waveform, the positioning is very accurate, and the waveform is not distorted after magnification. The storage depth of 112Mpts can still guarantee a high sampling rate when it can record waveform storage for a long time!