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How to...152

8.2

How to use rulers to measure a signal

Using a single ruler for signal-to-ground measurements

Look at the Channels toolbar to find the color code for the channel you wish to

measure:

Find the ruler handle (the small colored square in the top-left or top-right corner of

the scope view or spectrum view) of this color:

Drag the ruler handle downwards. A signal ruler (horizontal broken line) will appear

across the view. Release the ruler handle when the ruler is where you want it.

Look at the ruler legend (the small table that appears on the view). It should have

a row marked by a small colored square matching the color of your ruler handle.

The first column shows the signal level of the ruler.

Using two rulers for differential measurements

Follow the steps above for "using a single ruler".

Drag the second ruler handle of the same color downwards until its ruler is at the

signal level to be measured.

Look at the ruler legend again. The second column now shows the signal level of

the second ruler, and the third column shows the difference between the two rulers.