Does GPS use true north or magnetic north?

Related questions

1. Does Google Maps use True North?
2. How do you keep North up on Google Earth?
3. How do I rotate Google Earth?
4. Can I rotate a Google map?
5. How do I see a picture of the house on Google Maps?
6. How do I get True North on Google Maps?
7. How often does Google Maps get updated?
8. Does Google Maps have a compass?
9. How do you see someones house on Google Maps?
10. Can I enter multiple addresses in Google Maps?

Tags

1. #their
2. #poles
3. #points
4. #needle
5. #location
6. #floating
7. #itself
8. #current
9. #between
10. #magnetic
11. #compass
12. #calculate
13. #position
14. #angular
15. #field
16. #north
17. #declination
18. #difference
19. #given
20. #align
21. #receivers