Factors that influence choice of carrier frequency, Electrical Engineering

1. Why must a modem be used to transmit binary data through a PSTN?

(1) Use sketches and additional text to describe the following modulation methods.

(a) Amplitude shift keying

(b) Frequency shift keying

(2) Discuss the factors that in?uence the choice of carrier frequency and the bandwidth used by the demodulator section of a modem.

Posted Date: 3/22/2013 3:40:19 AM | Location : United States

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