Fujitsu LIFEBOOK T734 Operating Manual page 155

How to Handle This Device
The WLAN device is an optional device that may come pre-installed in your mobile
computer. Under normal circumstances, it should not be necessary for you to
remove or re-install it. The Operating System that your mobile computer comes
with has been pre-configured to support the WLAN device.
• Integrated Intel Centrino wireless LAN devices support IEEE802.11a,
IEEE802.11b, IEEE802.11g, and IEEE802.11n.
• The WLAN device operates in the 2.4 GHz ISM band and the 5 GHz lower,
middle, and upper UNII bands.
• Microwave ovens may interfere with the operation of WLAN devices since
they operate in the same 2.4 GHz frequency range as IEEE802.11b/g/n
devices. Interference by microwaves does not occur with IEEE802.11a radio
which operates in the 5 GHz RF band.
• Wireless devices that transmit in the 2.4 GHz range may interfere with
operation of WLAN devices in IEEE802.11b/g/n modes. Symptoms of
interference include reduced throughput, intermittent disconnects, and
many frame errors. It is HIGHLY recommended that these interfering devices
be powered off to ensure proper operation of the WLAN device.
Deactivating/Disconnecting the WLAN Device
Disconnecting the WLAN device may be desired in certain circumstances (to extend
battery life) or where certain environments require it (i.e. hospitals, clinics,
airplanes, etc.). The WLAN device can be deactivated by using the Wireless Device
On/Off Switch, and it can be disconnected in Windows using the WLAN icon in the
system tray (Note that disconnecting via the icon in the system tray does not turn
off the radio; it continues to transmit and receive even though it's not connected.)
Appendix 153