User's Manual

GeoExplorer 2005 Series Getting Started Guide 51
Using the Bluetooth Radio 12
The GeoExplorer 2005 series handheld has an integrated Bluetooth
radio that you can use to establish a wireless connection to other
Bluetooth devices that are within range.
Using a Bluetooth connection, you can communicate with devices
such as mobile phones, desktop computers, handhelds, and digital
cameras. You can also communicate with peripheral devices that use
Bluetooth adaptors instead of serial or USB connections.
This section provides information on:
• Bluetooth hosts and clients (see page 51)
• deactivating the Bluetooth radio (see page 52)
• enabling Bluetooth wireless connections (see page 53)
• bonding with other Bluetooth devices (see page 54)
• connecting to a Bluetooth service as a client (see page 57)
• providing Bluetooth services as a host (see page 60)
Bluetooth hosts and clients
The handheld can be used as a client or as a host, and can act as both
at the same time.
To communicate using a Bluetooth connection, a client device scans
the Bluetooth radio frequency to “discover” other Bluetooth devices.
Once it has discovered a host, the client selects the service that it will
use. A service defines what type of information can be transferred to
or from the host, and how. A client can connect to a number of
different services provided by different hosts. The network created by
all of a client’s connections to hosts is called a piconet. A client can
connect to up to seven other devices, but the number of connections
affects the speed of the connections.