Sat navs are easy to install – and many are equally useful away from the car, guiding you even if you're on foot. Here's a list of some terms used.
|21 Euro||Common map found in sat nav, covering 21 European countries.|
|2D/3D||The sat nav can display maps in both 'flat' 2D form and 3D, keeping the view more true to life.|
|Bluetooth||A wireless link between your sat nav and mobile phone (or other equipment). Useful for transferring information or using your sat nav as a hands-free kit without wires.|
|GPS||Global Positioning System. The network of satellites orbitting Earth that sat nav systems use to locate your position.|
|Position Plus||A feature that prevents your sat nav 'losing its way' when you pass through a tunnel or a heavily built-up area where GPS reception may be poor.|
|Sat Nav||Satellite navigation. The general term for all types of equipment that locate you and help you plan routes using the GPS system.|
|TMC||Traffic Message Channel. Updates your sat nav with real-time traffic information over the radio network.|