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Math equation editor (Spectral tab)

From the Math menu, select Equation Editor; then open the Spectral tab.

To use. Click a control to insert spectral analysis functions into the math expression.

1. Click one of the Predefined Functions to insert a Spectral function into the math expression.

Spectral functions

Mag Real Phase Imaginary

2. Select one of the defined waveforms as an argument using the Channels Selector.

Behavior. You can use any of the channels as arguments for the function. Create nested functions by inserting a function into

the argument portion of another.

What do you want to do next?

Learn about the Spectral Setup controls.

Learn about using math functions with math waveforms.

Learn about using the Measurement list with math waveforms.

Magnitude

Inserts the text SpectralMag( into the math expression. Select one of the waveforms as an argument to the function. This function

creates an FFT magnitude waveform.

Real number

Inserts the text SpectralReal( into the math expression. Select one of the waveforms as an argument to the function. This

function creates a waveform that displays only the real part of the FFT.

Phase

This timing measurement is the amount of time that one waveform leads or lags another waveform. The measurement is

expressed in degrees where 360° comprise one waveform cycle.

Imaginary number

Inserts the text SpectralImag( into the math expression. Select one of the waveforms as an argument to the function. This

function creates a waveform that displays only the imaginary part of the FFT.

Math setups

DPO70000SX, MSO/DPO70000DX, MSO/DPO70000C, DPO7000C, and MSO/DPO5000B Series 265

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