Which modulation technique is most commonly used in digital communication system

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Question: Which modulation technique is most commonly used in digital communication systems?

Options:

Correct Answer: Quadrature Amplitude Modulation (QAM)

Solution:

Quadrature Amplitude Modulation (QAM) is widely used in digital communication systems due to its efficiency in transmitting data.

Which modulation technique is most commonly used in digital communication systems?

Which modulation technique is most commonly used in digital communication systems?

Correct Answer: Quadrature Amplitude Modulation (QAM)

Step 1: Understand what modulation means. Modulation is a technique used to encode information onto a carrier signal for transmission.
Step 2: Learn about different modulation techniques. There are several types, including Amplitude Modulation (AM), Frequency Modulation (FM), Phase Shift Keying (PSK), and Quadrature Amplitude Modulation (QAM).
Step 3: Identify the purpose of digital communication systems. These systems need to transmit data efficiently and reliably.
Step 4: Recognize that QAM combines both amplitude and phase variations to transmit data, making it efficient for digital communication.
Step 5: Conclude that QAM is the most commonly used modulation technique in digital communication systems because it can carry more information compared to other methods.

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