1.Click on the link below 'pefrom experiment' and a window showing Amplitude Modulation
will open.
2.Vary the carrier signal’s frequency and amplitude and modulating signal’s frequency and amplitude to
observe the Amplitude Modulated waveform in time domain and frequency domain.
3.Calculate modulation index from m=(Am/Ac) and also from |
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and compare both the values. |
4. Observe the AM wave for different values of the modulation index. (note that usually the index of
modulation m ≤ 1 is used)
5.Also observe the effect setting m>1 which produces overmodulated signal.