This topic contains a solution. Click here to go to the answer

Author Question: What type of transmissions represented the first type of digital communications? A. Digital ... (Read 70 times)

biggirl4568

  • Hero Member
  • *****
  • Posts: 551
What type of transmissions represented the first type of digital communications?
 
  A. Digital signal processing
  B. Amplitude-shift keying
  C. Morse code
  D. On-off keying

Question 2

Which of the following is a key characteristic of orthogonal frequency-division multiplexing?
 
  A. Amplitude modulation
  B. Noise performance
  C. Digital modulation
  D. Spectral efficiency



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ErinKing

  • Sr. Member
  • ****
  • Posts: 362
Answer to Question 1

C

Answer to Question 2

D




biggirl4568

  • Member
  • Posts: 551
Reply 2 on: Jul 28, 2018
:D TYSM


fatboyy09

  • Member
  • Posts: 358
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

For a complete list of videos, visit our video library