Modulation

What is the process where one of the properties of a carrier signal is changed according to the baseband signal?

• Demodulation

• Amplification

• Modulation

• Filtering

What is a primary reason for using modulation in wireless communication?

• To increase the power of the signal

• To reduce the size of the antenna

• To decrease the signal's frequency

• To amplify the baseband signal directly

What are the two main types of modulation based on the nature of the message signal?

• Amplitude Modulation and Frequency Modulation

• Continuous Wave Modulation and Pulse Modulation

• Analog Modulation and Digital Modulation

• Wired Modulation and Wireless Modulation

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In Amplitude Modulation, what characteristic of the carrier wave changes according to the message signal?

• Amplitude

• Frequency

• Phase

• Duration

In Pulse Width Modulation, which characteristic of the pulse changes according to the message signal?

• Height

• Width

• Position

• Frequency