4. Need for Modulation

Try these first

1. 1.

   What is modulation?

   Hint

   Think about how signals are altered for transmission.

2. 2.

   What does AM stand for?

   Hint

   Focus on the term amplitude.

3. 3.

   What is a primary benefit of modulation?

   • A) Reduces the need for transmission
   • B) Allows multiple signals to share the same medium
   • C) Increases the cost of transmission

   Hint

   Think about how modulation works in a communication system.

4. 4.

   AM is less effective than FM in what context?

   • True
   • False

   Hint

   Recall the noise immunity characteristics.

5. 5.

   A broadcast company is considering whether to use AM or FM for a new radio station. They want clarity and hope to maintain sound quality over long distances despite interference. Which should they choose and why?

   Hint

   Think about the characteristics of each modulation type.

6. 6.

   Describe an instance where you would prefer using AM over FM in practice. What factors would lead to this preference?

   Hint

   Consider the strengths and weaknesses of each modulation method.