CN13 Modulation

The ____ of electromagnetic energy determines how the energy propagates.

• amplitude
• number
• frequency
• phase

Which term is used to refer to changes made in the carrier according to the information being sent?

• modulation
• modem
• noise-to-signal ratio
• signal

Which of the following is NOT one of the modulation techniques?

• Amplitude modulation
• Phase shift modulation
• Frequency modulation
• Time shift modulation

In frequency modulation, the amplitude of the carrier remains ______.

• unknown
• variable
• fixed
• known

Phase modulation is a special form of _______ modulation.

• time
• frequency
• none of the options
• amplitude