Lenovo ThinkPad S540 User Manual page 49

• If you use the wireless feature (the 802.11 standards) of your computer simultaneously with a Bluetooth
option, the data transmission speed can be delayed and the performance of the wireless feature can be
degraded.
Checking the wireless-LAN connection status
You can check the wireless-LAN connection status through the wireless-network-connection-status icon in
the Windows notification area. The more bars encompassed, the better the signal is.
For the Windows 7 operating system, you also can check the Access Connections gauge, the Access
Connections status icon, or the Access Connections wireless status icon in the Windows notification area.
Access Connections gauge:
• Power to the wireless radio is off or no signal.
• Power to the wireless radio is on. The signal strength of the wireless connection is poor. To
improve signal strength, move your computer closer to the wireless access point.
• Power to the wireless radio is on. The signal strength of the wireless connection
is marginal.
• Power to the wireless radio is on. The signal strength of the wireless connection
is excellent.
Access Connections status icon:
• No location profile is active or none exists.
• Current location profile is disconnected.
• Current location profile is connected.
Access Connections wireless status icon
• Power to the wireless radio is off.
• Power to the wireless radio is on. No association.
• Power to the wireless radio is on. No signal.
• Power to the wireless radio is on. The signal strength of the wireless connection is excellent.
• Power to the wireless radio is on. The signal strength of the wireless connection is marginal.
• Power to the wireless radio is on. The signal strength of the wireless connection is poor. To improve
signal strength, move your computer closer to the wireless access point.
Using the wireless WAN connection
Wireless Wide Area Network (wireless WAN) which uses cellular networks for data transmission, enables
you to establish wireless connections over remote public or private networks. These connections can be
maintained over a large geographical area, such as a city or an entire country, by use of multiple antenna
sites or satellite systems maintained by wireless service providers.
Some ThinkPad notebook computers come with a built-in wireless WAN card integrated with some wireless
WAN technologies, such as 1xEV-DO, HSPA, 3G, GPRS, or LTE. By using the built-in wireless WAN card and
the configuration utility that comes with your computer, you can establish wireless WAN connections and
monitor the connection status.
Note: The wireless WAN service is provided by authorized service providers in some countries.
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Chapter 2 Using your computer
33