Two baseband signals m, (t) and m₂(t) are to be multiplexed through the system shown below. Sketch signal spectra at points R, S, T, U, V, W and Y. M₁ (f) -3k 0 3k M₂(f) -5k 0 5k m, (t) m₂(t) LPF f=2kHz R S Carrier =15kHz HPF U V f=3kHz HPF f=15kHz LPF f=15kHz T W →Y

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Frequency Modulation

Frequency modulation is a method or process of encoding the data of a specific signal (analog or digital) by modulating the carrier wave frequency according to the frequency of the modulated signal. Modulated signals are nothing more than information or data that should be conveyed after being converted into electronic signals.