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Knowledge
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is modulation?
💡 Hint: Think about how signals adapt to carry information.
Question 2
Easy
Define carrier wave.
💡 Hint: What carries the signal over distances?
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does modulation do to a carrier wave?
- Changes its frequency
- Changes its amplitude
- Both A and B
💡 Hint: Think about how we encode data on signals.
Question 2
True or False: Frequency Modulation (FM) transmits information by varying the amplitude of the carrier wave.
- True
- False
💡 Hint: Recall the definition of FM.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
How would you calculate the effective bandwidth of an FM signal with a frequency deviation of 100 kHz and a maximum modulating frequency of 20 kHz?
💡 Hint: Remember to account for both the deviation and maximum frequency.
Question 2
Given a digital signal using PSK with 4 states, calculate the amount of information transmitted per symbol.
💡 Hint: Think about the binary logarithm for states to find bits.
Challenge and get performance evaluation