GPS

Question 1

What does GPS stand for?

Answer 1

Global Positioning System

Question 2

What does GNSS stand for?

Answer 2

Global Navigation Satellite System

Question 3

How many satellites are in the system?

Answer 3

24 at 10900 NM

Question 4

How many satellites are in view at any given location on earth?

Answer 4

5

Question 5

How many satellites required for RAIM?

Answer 5

5

Question 6

What is RAIM

Answer 6

Receiver autonomous Integrity monitoring, it double checks the accuracy of signals automatically. Without it GPS data required for IFR approaches is not authorized.

Question 7

Satellites required for 2D position

Answer 7

3

Question 8

Satellites required for 3D position

Answer 8

4