How Does Navigation Work - TomTom RIDER User Manual

Chapter 18

How does navigation work?

How does navigation work?
Global Positioning System (GPS)
In order to navigate you to your destination, your TomTom RIDER must know
where you are now. To find your current position, your TomTom RIDER 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 RIDER has a built-in GPS receiver. Using the GPS signal, your
TomTom RIDER 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 RIDER 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
Maps
Once your RIDER 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.
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