This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: What type of transmissions represented the first type of digital communications? A. Digital ... (Read 71 times)

biggirl4568

  • Hero Member
  • *****
  • Posts: 551
on: Jul 28, 2018
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
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

D


biggirl4568

  • Member
  • Posts: 551
Reply 2 on: Jul 28, 2018
Great answer, keep it coming :)

Missbam101

  • Member
  • Posts: 341
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Digital rectal exam (DRE). The physician’s index finger is inserted into the rectum and pressed agai Digital rectal exam (DRE). The physician’s index finger is inserted into the rectum and pressed agai
Kitagawa Utamaro, The Fickle Type, from the series Ten Physiognomies of Women. Kitagawa Utamaro, The Fickle Type, from the series Ten Physiognomies of Women.
In a gear-type oil pump, the oil flows through the pump around the outside of each gear. This is an ... In a gear-type oil pump, the oil flows through the pump around the outside of each gear. This is an ...
A mini clamp-on digital multimeter can be used to measure alternator output and unwanted AC current ... A mini clamp-on digital multimeter can be used to measure alternator output and unwanted AC current ...
Type of rocks Type of rocks
Rock Type Influences Weathering Rock Type Influences Weathering
Video: Diversity of Living Creatures - Charles Darwin & the Beagle's Voyage

For a complete list of videos, visit our video library