Author Question: Why must modulated signals be demodulated? A. To recover the original intelligence B. To improve ... (Read 21 times)

joblessjake

  • Hero Member
  • *****
  • Posts: 555
Why must modulated signals be demodulated?
 
  A. To recover the original intelligence
  B. To improve the spectral efficiency of digital transmissions
  C. To enable implementation of advanced features
  D. To produce one or more significant sideband pairs

Question 2

When a carrier is conveying intelligence by simply turning it on or off according to a prearranged code, this type of transmission is called ____________.
 
  A. continuous wave
  B. sine wave
  C. square wave
  D. cosine wave



BAOCHAU2803

  • Sr. Member
  • ****
  • Posts: 316
Answer to Question 1

A

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

Did you know?

The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

For a complete list of videos, visit our video library