Q. In QAM, both ________ of a carrier frequency are varied.

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Q. If the baud rate is 400 for a QPSK signal, the bit rate is ________ bps.

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Q. If the bit rate for an ASK signal is 1200 bps, the baud rate is ________.

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Q. If the bit rate for an FSK signal is 1200 bps, the baud rate is ________.

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Q. If the bit rate for a 16-QAM signal is 4000 bps, what is the baud rate?

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Q. If the baud rate for a 64-QAM signal is 2000, what is the bit rate?

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Q. Given an AM radio signal with a bandwidth of 10 KHz and the highest-frequency component at 705 KHz, what is the frequency of the carrier signal?

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Q. _______ conversion is the process of changing one of the characteristics of an analog signal based on the information in the digital data.

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Q. Which of the following is not a digital-to-analog conversion?

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Q. In ________, the amplitude of the carrier signal is varied to create signal elements. Both frequency and phase remain constant.

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Q. In _________, the frequency of the carrier signal is varied to represent data. Both peak amplitude and phase remain constant.

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Q. In ________, the phase of the carrier is varied to represent two or more different signal elements. Both peak amplitude and frequency remain constant.

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Q. A constellation diagram shows us the __________ of a signal element, particularly when we are using two carriers (one in-phase and one quadrature).

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Q. Quadrature amplitude modulation (QAM) is a combination of ___________.

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Q. ________ uses two carriers, one in-phase and the other quadrature.

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Q. _________ conversion is the representation of analog information by an analog signal.

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Q. Analog-to-analog conversion is needed if the available bandwidth is _______.

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Q. Which of the following is not an analog-to-analog conversion?

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Q. In _____ transmission, the carrier signal is modulated so that its amplitude varies with the changing amplitudes of the modulating signal.

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Q. In _____ transmission, the frequency of the carrier signal is modulated to follow the changing voltage level (amplitude) of the modulating signal. The peak amplitude and phase of the carrier signal remain constant, but as the amplitude of the information signal changes, the frequency of the carrier changes correspondingly.

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