User's Guide

Spotwave Wireless Inc. 31
 check with your vendor that your SpotCell product is
compatible with your cell phone service.
6. Status: The coverage area around the CU suddenly shrinks after a
long period of reliable operation.
Action: This is most likely due to man made environmental
influences such as a large building being erected somewhere in
between the DU and the location the DU is receiving a signal from.
Repeating the install procedure with the DU in its current position
may improve system performance (i.e. Putting the CU switch into
‘Install’ and spinning the DU around twice, aligning it in the
direction indicated by the green LED on the second spin.). If this
does not help, the DU may have to be physically repositioned at a
different location; going through the install procedure starting at
page 17 is necessary at this point.
7. Information: Remote installation SpotCell characteristics.
In order for the SpotCell system to function, there are two basic
parameters that must be met. The DU must receive a minimum
amount of wireless signal, and a physical environment that blocks
wireless signals must be in between the DU and CU (i.e. a wall).
If the DU is not receiving an adequate signal, the system will not
work, or, it will work but provide a very limited area around the CU
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 wireless providers advertised coverage area. Improved
performance will typically only be attained by moving the DU to a
higher location.