User's Manual

T
ROUBLE
S
HOOTING
I
NFORMATION
26
SpotCell 100, Release 1.0
9.
Information: Remote installation SpotCell 100 characteristics.
Action: In order for the SpotCell 100 system to function, there are
two basic parameters that must be met. The DDU must receive a
minimum amount of cellular signal, and a physical environment
that blocks cellular signals must be in between the DDU and SCU
(i.e. a wall).
If the DDU is not receiving an adequate signal, the system will not
work, or, it will work but provide a very limited area around the
SCU in which a cell phone will function. In this instance, it may be
possible that only one cell phone will be capable of using the system
at a time. This is typical of applications that are on the fringe, or
outside of a Cellular providers advertised coverage area. Improved
performance will typically only be attained by moving the DDU to
a higher location.
10.
Information: Residential (or building) installations that do not
provide for brick, concrete, metal, or other dense material between
the DDU and SCU.
Action: In this situation it is possible that the signal emitted by the
DDU will be received by the SCU. This will result in the system
lowering the power of the signal it is emitting; and therefore the area
around the SCU in which a cell phone will function will become
smaller. To improve performance in this scenario, it is important to:

Maximize the height of the DDU

Separate the DDU and SCU horizontally as much as possible

Mount the DDU and SCU in a back-to-back manner as
illustrated below.

It is recommended to use 50 meters of cable in between the
DDU and SCU if possible in an effort to vertically and
horizontally separate the system units.
Put a picture here showing back to back.