User's Manual Part 1

Local GPS (RF–GPS) Antenna Cabling
MAY 2004
1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU
PRELIMINARY
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Objective
The objective of this procedure is to install the Radio Frequency Global
Positioning System receiver (RF–GPS) antenna cabling. More
commonly referred to as Local GPS.
Cable labels
The cable designations referenced to Table 3-1 in the “Overall Cabling
and Descriptions” area.
Cabling diagram
Figure 4-48 shows the Local GPS antenna connections.
Equipment needed
Table 3-7 contains a detailed description of the Local GPS Cabling.
Table 1-4 lists the tools needed.
Table 3-7: Cabling for Local GPS
Cable Qty. Part Number Description
J* 1
Supplied in Kit
SGRG4030
RF–GPS Cable,
1
/
2
–inch coaxial, length = 50 ft. Two male N–type
connectors, one end loose.
If lengths greater than 50 ft. are required, cable style and length should
be determined by site configurations. Maximum loss <4.5 dB @ 1575
MHz for all cabling and connections between the Local GPS antenna
and the frame.
*An SMA to N adapter is required; otherwise, a smaller diameter cable must be made with an SMA connector
on one end, with a maximum loss of <4.5 dB.
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