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Data connections can be made from most locations where your wireless LAN card
operates. However, it is recommended that you move the wireless LAN card to a
location where the strongest possible network signal can be obtained. When the
signal is strong, data transmission is efficient.
The following factors may impair wireless connections:
Noise
Electronic appliances and equipment can cause radio interference. Also in areas
where wireless LAN cards are prevalent, other wireless LAN cards can impair the
wireless connection.
Roaming
As the wireless LAN card user moves from one access point coverage area to
another, the signal strength of the channel drops. As a consequence, the network
may hand the user over to a coverage area and frequency where the signal is
stronger. Due to varying network traffic loads, roaming may also occur when the
user is stationary.
Electrostatic discharge
A discharge of static electricity from a finger or a conductor may cause erroneous
functions in electrical devices. The discharge may result in unstable software
operation. Network connections may become unreliable, data may be corrupted,
and the transmission halted. In this case, end the existing connection (if any), stop
the wireless LAN card, and remove it from the PC card slot. Then re-insert the
wireless LAN card into the PC card slot and try connecting again.
Dead spots and dropouts
Dead spots are areas where radio signals cannot be received. Dropouts occur when
the wireless LAN card user passes through an area where the radio signal is
blocked or reduced by geographical or structural obstructions, such as concrete
walls.
Signal impairment
Distance and obstacles can cause out-of-phase reflected signals that result in a loss
of signal strength.
Low signal strength
Due to either distance or obstacles, the radio signal strength from an access point
may not be strong or stable enough to provide a reliable wireless connection for
communication. Therefore, to ensure the best possible communication,
remember to consider the following points:
• Data connection works best when the wireless LAN card is in a stationary
position.
• Do not place the wireless LAN card on a metal surface.
