What is the use of constellation diagram?

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3. Is QAM digital or analog?
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Tags

1. #modulation
2. #constellation
3. #phase
4. #shift
5. #plane
6. #signal
7. #modulated
8. #sampling
9. #diagram
10. #scheme
11. #amplitude
12. #quadrature
13. #scatter
14. #keying
15. #symbol
16. #digital
17. #dimensional
18. #complex
19. #displays
20. #representation
21. #instants