Location Of The Ultraconnect Wireless Antennas - Lenovo ThinkPad L420 User Manual

Due to the fact that integrated wireless cards operate within the guidelines found in radio frequency safety
standards and recommendations, Lenovo believes they are safe for use by consumers. These standards and
recommendations reflect the consensus of the scientific community and result from deliberations of panels
and committees of scientists who continually review and interpret the extensive research literature.
In some situation or environment, the use of integrated wireless cards may be restricted by the proprietor
of the building or responsible representatives of the organization. These situations and areas may for
example include:
• Using the integrated wireless cards on board of airplanes, in hospitals or near petrol stations, blasting
areas (with electro-explosive devices), medical implants or body-worn electronic medical devices, e.g.
pace makers.
• In any other environment where the risk of interference to other devices or services is perceived or
identified as harmful.
If you are uncertain of the policy that applies on the use of wireless devices in a specific organization (e.g.,
airport or hospital), you are encouraged to ask for authorization to use Wireless LAN PCI Express Mini Card,
Wireless WAN PCI Express Mini Card or Bluetooth device prior to turning on the computer.

Location of the UltraConnect wireless antennas

ThinkPad models feature an integrated diversity antenna system built into the display for optimal reception,
enabling wireless communication wherever you are.
The following shows the location of each built-in wireless antenna.
1 Wireless LAN and WiMAX combo antenna (Auxiliary)
The auxiliary antenna connected to the wireless LAN or WiMAX feature is located at the top left corner of
the computer display.
2 Wireless WAN antenna (Auxiliary)
If your computer comes with a wireless WAN feature, its auxiliary transmitter antenna is located at the
top left side of the computer display.
3 Wireless WAN antenna (Main)
192
User Guide