Installation Manual – Antenna & Feeder System Installation
BTS3802C & RRU
Chapter 3
Installing GPS Antenna & Feeder System
3-6
3.5.2 Introduction to Antenna Stand installing on Roof
Figure 3-5 illustrates the antenna stand installed on building roof. The diameter of the
metal base of the GPS antenna stand is 300 mm and that of the stand mounting hole
is 11 mm. This kind of stand can be installed both on cement base and parapet on
roof. If it is installed on the parapet, the metal base of the stand should be
disassembled first, and then fasten the stand on the parapet using fixed clamp.
(3)
(1)
(2)
(4)
(1)
(3)
(2)
Top
view
(1) M2 bolt holes (2) M3 bolt (3) M1 bolt (4) B1 bolt
Figure 3-5 Structure of GPS antenna support
3.5.3 Installation Procedures
When install the stand on cement base on roof, the installation procedure is as follows.
1) Place the metal base of the antenna support on the cement base, align the
centers of the two bases and record the position for installation hole with a
project pen.
2) Drill holes according to the marks using the drill bit with the diameter of Y12.
3) Install expansion bolts to fasten the base. In order to keep the antenna pole
erected vertically, further to reach the well receiving performance, try to keep the
metal base leveled with the amending of washers.
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