Through the TomTom HOME application, TomTom has added a new feature for TomTom 510 and TomTom 910 owners, QuickGPSfix. This feature allows your GPS to more quickly acquire a GPS signal. How does it work?
In order to locate your position, a GPS device needs to listen for the GPS satellites. In order to listen to the satellites, your GPS device needs to guess where to listen. When you you use QuickGPSfix, the TomTom HOME application will estimate where the satellites are going to be for the next seven days and tell your GPS device those locations.
Then so long as you use your GPS device within the next seven days it will have a better idea of where to start listening for satellites.