Question: 4 . In an amplitude modulation system, the message signal is given by Fig below and the carrier freauencv is 1 kHz . The modulator

4. In an amplitude modulation system, the message signal is given by Fig below and the carrier freauencv is 1 kHz . The modulator outbut-is
(b) If \( b=1\), determine the modulation index and the modulation power efficiency
(c) Sketch the modulated signal in the time domain.
4 . In an amplitude modulation system, the

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