Nokia A040 - Manual (Page 5)

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Using this document
The Wireless LAN Adapter is approved to
create a wireless LAN network to send data
and e-mail messages, to browse on the
Internet, and to establish connections with
other computers.
Data connections can be made from most
locations where your Wireless LAN
Adapter operates. However, it is
recommended that you move the Wireless
LAN Adapter 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
Radio interference from electronic
appliances and equipment, as well as from
other wireless devices in areas where
wireless devices are prevalent.
Handover
As the Wireless LAN Adapter user moves
from one network cell to another, the
signal strength of the channel drops and
the network may hand the user over to a
different cell and frequency, where the
signal is stronger. A cell handover may
also occur when the user is stationary due
to varying network traffic loads.
Electrostatic discharge
A discharge of static electricity from a
finger or a conductor may cause erroneous
functions in electric 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) and restart the
unit by powering off and on again.
Dead spots and dropouts
Dead spots are areas where radio signals
cannot be received. Dropouts occur when
the Wireless LAN Adapter user passes
through an area where the radio signal is
blocked or reduced by geographic or
structural obstructions.
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 a network cell
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 Adapter is in a
stationary position.
• Do not place the Wireless LAN
Adapter on a metal surface.