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6.3.5
Possible communications disturbances
Possible communication disturbances include the following
:
Noise
can be caused by electronic devices and radio transmitters.
Path-loss
occurs as the strength of the received signal steadily decreases in proportion to the distance from
the transmitter.
Shadowing
is a form of environmental attenuation of radio signals caused by hills, buildings, trees or even
vehicles. This can be a particular problem inside buildings, especially if the walls are thick and reinforced.
Multi-path fading
is a sudden decrease or increase in the signal strength. This is the result of interference
caused when direct and reflected signals reach the antenna simultaneously. Surfaces such as buildings,
streets, vehicles, etc., can reflect signals.
Hand-over
occurs as you move from one cell to another in the GSM network. Your mobile application call is
transferred from one cell to the next. Hand-over can briefly interfere with communication and may cause a
delay, or at worst, a disruption.
