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QAM is a type of amplitude modulation in which signals from two different information sources modulate the same carrier frequency at the same time without interfering with each other. After the carrier has been divided into two carrier signals that are 90 degrees out of phase with each other, the information sources modify the same carrier. Which one of the following assertions is TRUE? Select your answer. The information from the I-channel will be 90 degrees shifted and modulated by a balanced modulator. For retrieving the I-channel information, the carrier recovery signal will be 90 degrees shifted and demodulated by a balanced demodulator. In the QAM modulator, the carrier signal will be 90-degree shifted before being modulated by a Q balanced modulator. For extracting the Q-channel information, the QAM signal will be demodulated by a balanced demodulator.

QAM is a type of amplitude modulation in which signals from two different information sources modulate the same carrier frequency at the same time without interfering with each other. After the carrier has been divided into two carrier signals that are 90 degrees out of phase with each other, the information sources modify the same carrier. Which one of the following assertions is TRUE? Select your answer. The information from the I-channel will be 90 degrees shifted and modulated by a balanced modulator. For retrieving the I-channel information, the carrier recovery signal will be 90 degrees shifted and demodulated by a balanced demodulator. In the QAM modulator, the carrier signal will be 90-degree shifted before being modulated by a Q balanced modulator. For extracting the Q-channel information, the QAM signal will be demodulated by a balanced demodulator.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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QAM is a type of amplitude modulation in which signals from two different information sources modulate the same carrier frequency at the same time without interfering with each other. After the carrier has been divided into two carrier signals that are 90 degrees out of phase with each other, the information sources modify the same carrier. Which one of the following assertions is TRUE? Select your answer. The information from the I-channel will be 90 degrees shifted and modulated by a balanced modulator. For retrieving the I-channel information, the carrier recovery signal will be 90 degrees shifted and demodulated by a balanced demodulator. In the QAM modulator, the carrier signal will be 90-degree shifted before being modulated by a Q balanced modulator. For extracting the Q-channel information, the QAM signal will be demodulated by a balanced demodulator.
Transcribed Image Text:QAM is a type of amplitude modulation in which signals from two different information sources modulate the same carrier frequency at the same time without interfering with each other. After the carrier has been divided into two carrier signals that are 90 degrees out of phase with each other, the information sources modify the same carrier. Which one of the following assertions is TRUE? Select your answer. The information from the I-channel will be 90 degrees shifted and modulated by a balanced modulator. For retrieving the I-channel information, the carrier recovery signal will be 90 degrees shifted and demodulated by a balanced demodulator. In the QAM modulator, the carrier signal will be 90-degree shifted before being modulated by a Q balanced modulator. For extracting the Q-channel information, the QAM signal will be demodulated by a balanced demodulator.
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