Satnav. How GPS and mapping go together for you to navigate from A to B. How they work together and when they don't work.
Exploring the mysteries of satnav. Mysteries? Well, it seems a fairly common belief that it is the perfect navigation system. It pinpoints you anywhere in the world at any time. I'm afraid not. Understanding what it is and how it works puts things into perspective and removes this and other misconceptions.
The book shows that it is no better than other systems, but, despite that it is a remarkable although complex system that has become a very convenient, mostly reliable and cheap way of getting around. When the limitations are understood, in GPS itself and in the map.
The aim is for gaining a higher understanding of how it works to enable you to get the best out of your system, avoiding confusion and being misled. You may find some of the ways it works surprising. 131 pages.
