User's Guide

TROUBLE SHOOTING INFORMATION
30 SpotCell
3. Status: My cell phone does not work around the location I would
like to install the SpotCell DU.
Action: Try positioning the DU externally as high as possible.
4. Status: While optimizing the DU for installation, you found that
the LED turned green in multiple locations, indicating each had
adequate signal strength. How do you determine which location is
optimal for the DU?
Action: Look at the signal level indicated on the display on the
bottom of the CU each time the green light appears on the DU
during alignment. Mount the DU in the location as indicated
having the highest signal level. Figure 6.1:“Displayed signal
strength.” below shows an example of the signal strength display.
Figure 6.1: Displayed signal strength.
5.
Status: The DU and CU are installed properly, but your cell phone
only works in close proximity to the CU.
Action: There are three factors that may be affecting coverage as
described below:
 Visually inspect the area around the CU. Ensure that there are
not any large metallic objects directly between the CU and the
area where cell phone coverage is not adequate. Remount the
CU so that it is out in the open.
 If the signal the DU is receiving is very weak (although still
strong enough to allow operation), the area around the CU
within which a cell phone can function will be relatively small.
An effort can be made to improve system performance by
raising or otherwise repositioning the DU in an effort to obtain
a stronger signal. In Install mode, signal strength is shown on
the CU display.