User's Guide

TROUBLE SHOOTING INFORMATION
32 SpotCell
8. Information: Residential (or building) installations that do not
provide for brick, concrete, metal, or other dense material between
the DU and CU.
Action: In this situation it is possible that the signal emitted by the
DU will be received by the CU. This will result in the system
lowering the power of the signal it is emitting; and therefore the area
around the CU 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 DU
 Separate the DU and CU horizontally as much as possible
 Mount the DU and CU in a back-to-back manner.
 It is recommended to use 50 meters of cable in between the DU
and CU if possible in an effort to vertically and horizontally
separate the system units.
9. Information: Proper alignment rotation
Action: Make sure the DU is rotated once completely within the
area available for rotation, and then move through the same rotation
again. DU alignment is based on optimizing the direction the DU is
facing after initially establishing the range of signal available by
rotating the DU in a circle. Once the DU has been rotated in a
circle and established the level of signal available, it now sets a
threshold based on the surroundings to determine when the LED
will illuminate green. If the DU is not pointing in a direction that is
within a certain range of the highest signal it encountered since
being in ‘Install’ mode, the LED will not turn green. Additionally,
the LED will not illuminate green if a minimum signal level is not
achieved during the initial rotation.