User's Manual

Using Assisted GPS (A-GPS)

To enable and disable A-GPS, tap / Settings / System / GPS

and tap the arrow over the A-GPS tab. If the GPS has been used in

the prior 72 hours, A-GPS will retain a memory of the satellite

paths. The A-GPS satellite data is stored in memory for the

satellites visible in your current position. Therefore the unit can

lock on the satellites quickly, in less than 20 seconds in an open

sky. The expiration of the A-GPS data is also shown in this menu

and on the Home screen. Using A-GPS may reduce accuracy in

some situations.

If you are unable to connect to the GPS using the default GPS

settings, you can restore it to factory default settings by performing

a shutdown, and leaving it shut down for approximately 5 minutes.

See Power key features on page 13.

SatViewer

(Optional on certain device offerings; may not be installed.)

If your unit has the built-in GPS, it may have SatViewer™

installed. External GPS receivers, Bluetooth GPS receivers or other

external GPS devices (including other SiRF II or SiRF III GPS

receivers) are not supported and may not work correctly with

SatViewer. See Appendix A for more instructions on using

SatViewer.

Exiting GPS applications

Any time you exit a GPS application (such as SatViewer) it is

advisable to close the port gracefully, e.g. tap Disconnect from

GPS and exit the application. Failure to do so may leave the port

open and hinder the next GPS operation