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Chapter 3 Demo Waveforms
Demo 2: Phase Modulation Analysis (BPSK)
Using the cursor and clicking on each peak in the spectrum, the
characteristic odd harmonics of the square wave phase modulation can be
seen. Note that this is not the same view as a spectrum analyzer would
display (spectrum of the modulated carrier), but a direct view of the
spectral content of the modulation.
2
Select View>Phase Power Spectral Density.
This plot is very similar to the FFT. Since it is normalized, the units are in
dBc/Hz. Note that the top line of the display shows the noise bandwidth.
This completes Demo 2.
Getting Started Guide
3-19
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