User's Manual

Access P oint Hardw are Installation Local GPS (RF GPS) Cable
Local GPS (RF GPS) Cable
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Objective
This section contains general information on the R adio Frequency Global P ositioning System
receiver (RF GPS) antenna cabling. More commonly referred to as Local GPS . Refer to
Procedure 4 -10 for installation information.
Cable Label
Refer to T able 3 -1 for the labels used to identify the cables that will be shown in illustrations
throughout this chapter .
Table 3 -7 Local GPS Cable Description and P art Numbers
Cable Qty
Part Number Description
D
1 Receiver SGRG4030
Assembly , GPS , RF Module
1 CGDSGPSKITF4NM50
Assembly , Receiver , RF GPS with 50
ft. cable
Surge Protection
Local GPS antenna requires lightning protection.
Mounting Considerations
Refer to T able 3 -8 for Local GPS mounting considerations.
Table 3 -8 Local GPS Antenna Mounting Consider ations
Description
1
The mounting pipe for the Local GPS Head should be mounted vertically with less
than five (5) degrees of tilt.
2
The Local GPS Head requires a clear view of the sky , preferably to within ten (10)
degrees of the horizon in all directions. The more sky that is observed increases
the number of potential satellites that can be tracked, resulting in better Local
GPS performance.
3
During normal operation, the Local GPS Head continuously tracks a minimum of
four (4) GPS satellites. However , it is theoretically possible to operate the BTS by
Continued
68P09277A59 -8 3 -13
PRELIMINARY - UNDER DEVELOPMENT MA Y 2007