TomTom GO 510 User Guide - Page 67

Chapter 20 How does navigation work? Hwoowrk?does navigation Global Positioning System (GPS) In order to navigate you to your destination, your TomTom GO must know where you are now. To find your current position, your TomTom GO uses the Global Positioning System (GPS). GPS is available for free and without subscription. The GPS uses satellites to transmit signals to GPS receivers. Your TomTom GO has a built-in GPS receiver. Using the GPS signal, your TomTom GO can work out where you are and how fast you are going. GPS signals work in all weather, anywhere in the world. Note: Your TomTom GO does not transmit your position, so others cannot use it to track you while you are driving. You can however send your position to TomTom Buddies. For more information, visit www.tomtom.com/plus Finding your position faster If you use your TomTom GO in combination with TomTom HOME, your GO will download information about where the GPS satellites are going to be for the next 24 hours. With this information, your GO will be able to find your current position very quickly when it is first switched on. Maps Once your GO knows where you are and you have told it where you want to go, it uses the digital map on the memory card or hard disk to work out the best route to your destination. 67