Is WAAS ground based?

Related questions

1. What is Glonass sensor?
2. How does a WAAS work?
3. Does Russia have a GPS system?
4. Is GPS always accurate?
5. What is LPV approach?
6. What is a GNSS sensor?
7. What is the difference between GPS?
8. What is GNSS approach?
9. What is the difference between DH and DA?
10. Does GPS work in cloudy weather?

Tags

1. #system
2. #accuracy
3. #airspace
4. #enhance
5. #receivers
6. #integrity
7. #navigation
8. #position
9. #national
10. #across
11. #provides
12. #traditional
13. #ground
14. #services
15. #based
16. #augmentation
17. #estimates
18. #information
19. #unlike