Why modulation and demodulation is required?

Related questions

1. What is modulation techniques?
2. How does QAM modulation work?
3. What is the need of frequency modulation?
4. What is Oqpsk modulation?
5. What is DPSK modulation?
6. Why do we need modulation and demodulation?
7. What are types of modulation?
8. What does modulation mean?
9. What is the difference between shift keying and modulation?
10. What is the difference between QPSK and QAM?

Tags

1. #larger
2. #distances
3. #station
4. #detection
5. #modulation
6. #transmit
7. #audio
8. #recovering
9. #demodulation
10. #process
11. #signal
12. #modulated
13. #original
14. #radio
15. #receiver
16. #accomplished
17. #called
18. #broadcasting
19. #known