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User’s Manual 4-34
Operating Basics
Worldwide operation
The Bluetooth
TM
radio transmitter and receiver operates in the 2.45 GHz
band, which is license-free and compatible with radio systems in most
countries in the world.
Radio links
You can easily establish links between two or more devices. The link is
maintained even if the devices are not within line of sight.
Security
Two advanced security mechanisms ensure a high level of security:
■ Authentication prevents access to critical data and makes it impossible
to falsify the origin of a message.
■ Encryption prevents eavesdropping and maintains link privacy.
Wireless communication
You can enable or disable RF transmission(Wireless LAN and Bluetooth)
functions on and off, with hot keys. No transmissions are sent or received
when the hot keys don’t work.
Turn the computer off when you enter an airplane and check the carrier’s
regulations before you use a computer on board.
Wireless communication indicator
The wireless communication indicator indicates the status of the wireless
communication functions.
If you used the Task Bar to disable Wireless LAN, restart the computer or
follow the procedures below to enable the system to recognize Wireless
LAN. Click Start -> Control Panel -> System and Security -> System ->
Device Manager -> Network adapters, and right click the wireless device
then choose Enable.
It may not be possible to make a network connection to a specified network
name using the ad hoc network function.
If this occurs, the new network(*) will have to be configured for all
computers connected to the same network in order to re-enable network
connections.
* Please be sure to use new network name.
Set the function to off in airplanes and hospitals. Check the indicator. It will
stop glowing when the wireless communication function is off.
Indicator status Indication
Indicator off
Wireless communication hot key is set to off.
Indicator glows
Wireless communication hot key is on.
Wireless LAN or Bluetooth is turned on by an
application.