A graph showing a message and carrier signal for an FM transmission. The signals are given respectively as:

xm(t)=0.65[0.2sin⁡(t)+0.5cos⁡(2t)+cos⁡(4.5t)]{\displaystyle x_{m}(t)=0.65\left[0.2\sin(t)+0.5\cos(2t)+\cos(4.5t)\right]\,}
xc(t)=Acos⁡(2πfc){\displaystyle x_{c}(t)=A\cos(2\pi f_{c})\,}where

A=2{\displaystyle A=2\,}
fc=3{\displaystyle f_{c}=3\,}
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