Facts about cellular data transmission
The Nokia 9110i Communicator employs the data transmission capabilities of
the GSM network to send faxes, short messages and e-mail, and to establish
connections with remote computers.
Cellular data connections can be made from most locations where your
wireless phone operates. However, it is recommended that you move the
communicator to a location where the strongest possible cellular signal can
be obtained. When the signal is strong, data transmission is efficient. In
general, you should not expect the same performance from cellular data
communications as from landline communications due to the inherent
characteristics of the cellular environment. The following factors may impair
cellular connections:
Noise
Radio interference from electronic appliances and equipment, as well as from
other wireless phones in metropolitan areas where wireless phones are
prevalent.
Handover
As the wireless phone user moves from one network cell to another, the signal
strength of the channel drops and the cellular telephone exchange 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
cellular traffic loads. Such handovers may cause slight delays.
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 “garbled”
display and unstable software operation. Cellular connections may become
unreliable, data may be corrupted, and the transmission halted. In this case
you need to end the existing call (if any), switch off the phone (if on) and
remove the battery. Then replace the battery and establish a new cellular
connection.
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©2000 Nokia Mobile Phones. All rights reserved.
Dead spots and dropouts
Dead spots are areas where radio signals cannot be received. Dropouts occur
when the wireless phone 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 cell site
may not be strong or stable enough to provide a reliable cellular connection
for communication. Therefore, to ensure the best possible communication,
remember to consider the following points:
The data connection works best when the communicator is in a stationary
position. Attempting cellular communication while in a moving vehicle is not
recommended. Fax transmission is more easily impaired than data or short
message transmission.
Do not place the communicator on a metal surface.
Check that the cellular signal strength on the communicator displays is
sufficient. See ”Communicator display” on page 10 and ”To make a call” on
page 135. Moving the communicator within a room especially towards a
window, may result in a stronger signal. If the cellular signals are not strong
enough to support a voice call, data connection should not be attempted until
you can find a location with better signal reception.
Note: When the
antenna is up, the
signal is stronger.
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©2000 Nokia Mobile Phones. All rights reserved.