NT910G
User Manual - Telic AG
Pg 26
that the antenna cable is a high-quality, low-loss cable. Minimize the use of extension cables,
connectors and adapters. Each additional cable, connector or adapter causes a loss of signal power.
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.
