User's Manual Chapter 13

Chapter 6: Internal Photographs
AT&T Wireless Services
6-51
FCC Type Acceptance Application
10991 Rev. 1.0 7/6/99
The Global Positioning System/Synchronization card contains a GPS
receiver, and, along with its accompanying antenna, provides various
GPS-referenced, high-stability time and frequency reference signals for
the operation of the Base Station and the airlink.
Figure 6.11—Global Positioning Synchronization Card (Sync)