« previous next »

Author Question: Why must modulated signals be demodulated? A. To recover the original intelligence B. To improve ... (Read 58 times)

joblessjake

  • Hero Member
  • *****
  • Posts: 555
on: Jul 28, 2018
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
Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

Did you know?

Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

A typical accelerator pedal position (APP) sensor, showing two different output voltage signals ... A typical accelerator pedal position (APP) sensor, showing two different output voltage signals ...
The EGR valve pintle is pulse-width modulated and a three-wire potentiometer provides ... The EGR valve pintle is pulse-width modulated and a three-wire potentiometer provides ...
DNA replication. As the two strands of the original DNA molecule unwind, the nucleotide bases on ... DNA replication. As the two strands of the original DNA molecule unwind, the nucleotide bases on ...
Short, Upbeat Massage Sessions can Improve Mental Alertness. Short, Upbeat Massage Sessions can Improve Mental Alertness.
Hand signals are an effective emergency backup to ra- dio communication systems. Shown are several ... Hand signals are an effective emergency backup to ra- dio communication systems. Shown are several ...
Using FITT to Improve Fitness Using FITT to Improve Fitness
Video: Forming urine ( influencing factors), Forming dilute urine & Forming concentrated urine

For a complete list of videos, visit our video library