Anglų skaidrės. GPS. Basic. Exact location. Altitude, distance. Appliance. Five ways, GPS is used for. TEXT FOR 1-st slide. How do satellites measure altitude and distance to a receiver? It’s pretty easy. Satellites send microwaves to a receiver, and when receiver “catch” it, sends it back to satellite. Satellite calculates the distance with by a formula S=V*t (Distance=Velosity*time).