Amplitude Modulation and Spectrum

Cuthbert Nyack

NETLIST


The netlist is shown opposite. A polynomial source is used to produce an AM signal with 1kHz carrier, 200Hz modulation and 80% modulation.

TRANSIENT RESPONSE WITH PROBE


The time behaviour of the signal is shown opposite with the signal amplitude varying between 0.2V and 1.8V.
The Frequency Spectrum shows 3 lines, one of amplitude 1V at tne carrier frequency and 2 sidebands at ±200Hz with amplitude 0.4V.


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COPYRIGHT © 1999 Cuthbert A. Nyack.