« previous next »

Author Question: What is the purpose of a PLL? A) stabilize IF gain B) regulate voltage in audio amplifiers C) ... (Read 89 times)

Diane

  • Hero Member
  • *****
  • Posts: 576
on: Jul 28, 2018
What is the purpose of a PLL?
 
  A) stabilize IF gain B) regulate voltage in audio amplifiers
  C) modulate or demodulate an incoming signal D) synchronize a VCO with an incoming signal

Question 2

The range of frequencies between 200 Hz and 20 KHz is
 
  A) the audio range B) demodulated FM
  C) the lowest end of the radio frequency spectrum D) demodulated AM


morrie123456

  • Sr. Member
  • ****
  • Posts: 314
Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

A DC voltage is applied across the spark plug gap after the plug fires and the circuit can determine ... A DC voltage is applied across the spark plug gap after the plug fires and the circuit can determine ...
Negative reading oxygen sensor voltage can be caused by several problems. Negative reading oxygen sensor voltage can be caused by several problems.
Hormones Help the Body Regulate Glucose Hormones Help the Body Regulate Glucose
The average weight gain between Thanksgiving and New Year's Day is about a pound The average weight gain between Thanksgiving and New Year's Day is about a pound
Healthy Eating Behaviors and Weight Gain Are Important Considerations during the Third Trimester Healthy Eating Behaviors and Weight Gain Are Important Considerations during the Third Trimester
Bacterial small noncoding RNAs regulate gene expression Bacterial small noncoding RNAs regulate gene expression
Video: Homologous chromosomes during prophase I - Animation

For a complete list of videos, visit our video library