Wireless communications, Wireless lan, Wireless communications -21 – Toshiba Qosmio G20 (PQG20) User Manual

Page 93: Wireless lan -21

User’s Manual

4-21

Operating Basics

Wireless communications

The computer’s wireless communication function supports both Wireless

LAN and Bluetooth devices.
Bluetooth is provided with some models.

Wireless LAN

The Wireless LAN is compatible with other LAN systems based on Direct

Sequence Spread Spectrum/Orthogonal Frequency Division Multiplexing

radio technology that complies with IEEE802.11 Wireless LAN standard

(Revision A, B or G) and Turbo Mode.
Supported features. It supports the following features:

■

Theoretical maximum speed: 54Mbps (IEEE802.11a, 802.11g)

■

Theoretical maximum speed: 11Mbps (IEEE802.11b)

■

Theoretical maximum speed:

108Mbps (Turbo Mode; Atheros module type)

■

Frequency Channel Selection

(Revision A/Turbo Mode:5 GHz, Revision B/G: 2.4 GHz)

■

Roaming over multiple channels

■

Card Power Management

■

Atheros Super G

or Super AG

technology (Atheros module type).

■

Wired Equivalent Privacy (WEP) data encryption, based on the

152 bit encryption algorithm (Atheros module type).

■

Wired Equivalent Privacy (WEP) data encryption, based on the

128 bit encryption algorithm (Intel module type).

■

Advanced Encryption Standard (AES) data encryption, based on

256 bit encryption algorithm (Atheros module type).

■

Wi-Fi Protected Access (WPA).

■

The numerical values for display are the theoretical maximums for

Wireless LAN standards. The actual values may differ.

■

The transmission speed over the wireless LAN and the distance over

which wireless LAN can reach may vary depending on surrounding

electromagnetic environment, obstacles, access point design and

configuration, and client design and software/hardware configurations.

The Transmit Rate (at X Mbit/s) is the theoretical maximum speed

under the IEEE802.11 (a/b/g) standard. The actual transmission speed

will be lower than the theoretical maximum speed. To use the Atheros
SuperAG

function, your client and access point must support the

corresponding feature. Performance of these functions may vary

depending on the format of data transmitted.