The binary sequence 11100101 is applied to and ASK modulator. The bit duration is 1s and the

The binary sequence 11100101 is applied to and ASK modulator. The bit duration is 1μs and the sinusoidal carrier wave used to represent symbol 1 has a frequency equal to 7MHz.

a. Find the transmission bandwidth of the transmitted signal.

b. Plot the waveform of the transmitted ASK signal.

Assume that the line encoder and the carrier-wave oscillator are controlled by a common clock.

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