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146 Using GPS
8.2 Downloading Satellite Data via QuickGPS
Before you start to use your device for GPS navigation, open the QuickGPS
program first to download Ephemeris data (current satellite position and
timing information) onto your device. This data is needed to determine the
GPS position of your current location.
QuickGPS downloads Ephemeris data from a Web server, instead of from
the satellites, using the Internet connection on your device, which can
be via ActiveSync, Wi-Fi, or GPRS. This significantly speeds up the time for
determining your GPS position.
To open QuickGPS
• Tap the QuickGPS icon ( ) on the Today screen; or
• Tap Start > Programs > QuickGPS.
To download data
• Tap Download on the QuickGPS screen.
On the screen, initially, you will see the Valid time of the downloaded
data to be 3 days. As days and time pass, the remaining days and time
of validity will be shown.
To speed up GPS positioning, download the latest Ephemeris data
when the validity of the data expires.