Determine the highest frequency component

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Reference no: EM131203537

Frequency-division multiplexing, as shown in Fig. 9.19, is used to separate messages in the frequency domain and assign a distinct frequency slot to each message. Four messages, each with a bandwidth B of 4 kHz, are to be multiplexed by amplitude modulation (AM). For proper demultiplexing a guard band of 3 kHz is needed.

(a) If a low-pass filter with steeper cutoff characteristics could be used in demultiplexing, would the guard band have to be smaller or larger?

(b) Determine the lowest carrier frequencies to accomplish frequency-division multiplexing

Reference no: EM131203537

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