Copyright© 2008. All Rights Reserved by ATP Electronics Inc.
4
What is GPS?
GPS (Global Positioning System) is a global navigation satellite system that calculates position from a
network orbiting satellites and essentially allows you to track down your exact location on Earth. This network
of GPS satellites consists of 24 total satellites in six orbits, with four satellites in each orbit. These 24
satellites are about 20,000 kilometers (about 12,400 miles) above us and using at least three of them a GPS
receiver can receive radio signals and triangulate your exact position via a series of calculations. This is
called “tracking” and a GPS receiver logs your location by latitude, longitude, and elevation numbers. The
ATP GPS Photo Finder utilizes an internal GPS receiver and stores your location data for use in photos taken
with your digital camera.