Question: In ________, the phase of the carrier is varied to represent two or more different signal elements. Both peak amplitude and frequency remain constant.
Answer:
MCQ: In ________, the phase of the carrier is varied to represent two or more different signal elements. Both peak amplitude and frequency remain constant.
Correct Answer:
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Related Questions
- 1. A constellation diagram shows us the __________ of a signal element, particularly when we are using two carriers (one in-phase and one quadrature).
- 2. Quadrature amplitude modulation (QAM) is a combination of ___________
- 3. ________ uses two carriers, one in-phase and the other quadrature
- 4. ________ conversion is the representation of analog information by an analog signal.
- 5. Analog-to-analog conversion is needed if the available bandwidth is _______
- 6. Which of the following is not an analog-to-analog conversion?
- 7. In _____ transmission, the carrier signal is modulated so that its amplitude varies with the changing amplitudes of the modulating signal.
- 8. 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.
- 9. In _____ transmission, the phase of the carrier signal is modulated to follow the changing voltage level (amplitude) of the modulating signal.
- 10. In _______, the peak amplitude of one signal level is 0; the other is the same as the amplitude of the carrier frequency
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