How Does GPS Work?

GPS satellites circle the earth twice a day in a very precise orbit and transmit signal information to earth. GPS receivers take this information and use triangulation to calculate the user's exact location. Essentially, the GPS receiver compares the time a signal was transmitted by a satellite with the time it was received. The time difference tells the GPS receiver how far away the satellite is. Now, with distance measurements from a few more satellites, the receiver can determine the user's position and display it on the unit's electronic map.

What is GPS?

The Global Positioning System (GPS) is a satellite-based navigation system made up of a network of 24 satellites placed into orbit by the U.S. Department of Defense. GPS was originally intended for military applications, but in the 1980s, the government made the system available for civilian use. GPS works in any weather conditions, anywhere in the world, 24 hours a day. There are no subscription fees or setup charges to use GPS.
satellite
Our Ecommerce System offers the most complete secure ecommerce system available, including online store builder, shopping cart, credit card processing, PayPal, inventory management, cross-selling, recurring orders, wish list, gift certificates, gift cards, promo codes, customer address books, customer service, UPS integration, online order tracking and much, much more.  The flexible ecommerce system enables you to accept credit cards, checks, money orders, PayPal, gift certificates and 3rd party payment systems.