Figure 3 32: Using Split Dots Cursors To Measure Fft Phase - Tektronix 11801C User Manual

Fast Fourier Transforms
Split dots cursors can be used to make phase measurements. With both the
magnitude and the phase of trace in the frequency domain displayed, you
can place one cursor on the FFT magnitude display and the other on the
FFT phase display. By adjusting the cursors horizontally so that the Df
readout is 0.000 Hz, you can easily match the phase readout to the corre
sponding peak in frequency magnitude. See Figure 3 32.

Figure 3 32: Using Split Dots Cursors to Measure FFT Phase

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11801C User Manual