| Mobile GPS devices are becoming more and more | | | | the GPS device requires a radio emitter and a |
| popular each day, for they allow great | | | | clock to work. The emitter sends the time of |
| portability. Most consumer GPS devices can be | | | | the clock to the satellite overhead. The |
| easily fit into the palm and are not that | | | | satellite then calculates the amount of time |
| heavy as well. It can also be clip to a pet's | | | | it took for the radio signal to reach them |
| collar or fit into a cell phone. The basic | | | | and then figures the distance from that. |
| concept behind GPS unit is quite simple. It | | | | Three or four satellites compare their |
| includes a radio emitter that works with a | | | | location and the time involved. They then |
| clock, and together they work with Satellite | | | | show the location within about six inches |
| that are located in the space. And now with | | | | depending on the accuracy of the unit's |
| the booming of technology, we have GPS device | | | | clock. |
| installed in many laptops computers, cars and | | | | |
| even at seat back television screen of | | | | Portable GPS device can be of many use. |
| airplanes. | | | | Besides plotting navigation or tracking |
| | | | objects and living things, it can use the |
| While the GPS technology does not really need | | | | data as information in applications. |
| a lot of space, the software that adds the | | | | |
| functionalities expected by the consumer, | | | | Many mobile devices are GPS enabled, in the |
| actually does. The software once created, | | | | present times. One of the most talked about, |
| gets improved by getting smaller. The fact | | | | is the GPS navigation system of Nokia N95 |
| that not all GPS features are required by the | | | | and the Nokia 6110 navigator. The GPS of |
| customers, allows for smaller GPS devices. | | | | these devices are very user-friendly, and |
| | | | designed to meet the requirements of the |
| How does a GPS device work? As already said, | | | | modern users. |