Oscilloscopes: How To Use Them, How They Work Link

: DC coupling shows the entire signal (AC + DC offset); AC coupling blocks the DC part, useful for seeing small ripples on a large power supply voltage. Step-by-Step Guide to Use

: A digital oscilloscope uses an Analog-to-Digital Converter (ADC) to take thousands or billions of snapshots ("samples") of the voltage per second. These points are stored in memory and connected to draw the final waveform. Oscilloscopes: how to use them, how they work

Modern digital scopes from manufacturers like Keysight and Tektronix can automatically calculate: Peak-to-Peak Voltage ( Vppcap V sub p p end-sub : DC coupling shows the entire signal (AC

) : The difference between the highest and lowest voltage points. : How many times the wave repeats per second ( AC coupling blocks the DC part