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 68 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
:D TYSM

frankwu0507

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Did you know?

More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Paternity Determination by Blood Type Paternity Determination by Blood Type
Voltmeter hook-ups for voltage-drop testing of a GM-type cranking circuit. Voltmeter hook-ups for voltage-drop testing of a GM-type cranking circuit.
Induration measurement in a tuberculin skin test, a type IV hypersensitivity. Induration measurement in a tuberculin skin test, a type IV hypersensitivity.
The types of topological interconversions catalyzed by type II topoisomerases The types of topological interconversions catalyzed by type II topoisomerases
A GWAS study for Type 2 diabetes revealed 386,371 genetic markers, clustered here by chromosome numb A GWAS study for Type 2 diabetes revealed 386,371 genetic markers, clustered here by chromosome numb
Wild-type flowers of Arabidopsis Wild-type flowers of Arabidopsis
Video: Attention Deficit Disorder (ADD)

For a complete list of videos, visit our video library