Back in the day the GPS- Global Positioning System was only existing in the realm of science fiction. But later on, it became in common technology used in our daily lives.
Moreover, the very first GPS tracking devices were used by the US military in the early 1980’s. Nowadays we can see that the best GPS tracking devices are supported by at least 24 satellites orbiting the Earth. All in all, as the statistic says there are 31 operational satellites in the GPS constellation.
Thereupon, the GPS tracking device is working thanks to the satellites which are transmitting signals. It is good for you to know that the signals that the GPS tracking device is sending are free to access for anyone that has the technological wherewithal.
These days the GPS tracking devices are mainly used for the aim to increase the productivity, to prevent loss as well as to keep time.
Henceforth, the signal that the GPS satellites are sending is being measured by an atomic clock. Yet, the GPS device is picking up the signal from the satellites, which later on through the process of trilateration is transmitting the precise information that the user is in need of.