Profile: iTRAK Corporation designs, develops, implements and supports GPS tracking systems for commercial fleet management in a broad range of industries. We provide GPS vehicle tracking. The global positioning system(GPS) is a constellation of 24 active satellites and 3 additional backup satellites. The GPS satellites constantly send signals down to the earth, which are received and processed by the GPS receiver. It extracts latitude, longitude, altitude, direction of travel, instantaneous speed, time of day and a list of the satellite signals received.