Time Per Division VS. Frequency Chart

Chart For Determining Time Base Setting, Based On Signal Frequency:

PURPOSE OF THIS CHART: To assist in choosing time per division settings on the Digital Storage Oscilloscope (DSO) based on the signal's frequency, or to estimate the frequency of a signal on the DSO display.

HOW TO USE THIS CHART: Determine the frequency (Hz) of the signal by using the DMM function of the DSO. Take the frequency reading from the DMM, and round off to the closest number in the left column. Choose how many cycles of the signal you want to see on the DSO display at the same time and go over to that column. That is a good time base to begin with.

Additionally, you can estimate the frequency of the signal on your DSO by counting the number of cycles on the display (1 through 5), going to that column in the chart, and going down the column to find your current time base setting. The left column will estimate the frequency.