Руководство Пользователя для Sony VPCSA290X

Using the Wireless LAN

The Wireless LAN (WLAN) allows your computer to connect to a network through a wireless connection.

The WLAN uses the following IEEE 802.11a/b/g/n standard, which specifies the type of technology used.
See the specifications to find out about the configuration of your computer.

You cannot access wireless networks if you disable the wireless LAN function in the BIOS setup screen. To enable the function, follow the steps in 
Disabling Built-in Devices 

IEEE 802.11a 

5 GHz

Available only on models compliant with the IEEE 802.11a/b/g/n standard.

IEEE 802.11b/g

2.4 GHz

The IEEE 802.11g standard provides higher-speed communications than the IEEE 802.11b 
standard.

IEEE 802.11n

5 GHz/2.4 GHz

On models compliant with the IEEE 802.11b/g/n standard, only the 2.4 GHz band can be used.