Installation Manual – Antenna & Feeder System Installation
BTS3802C & RRU 
Chapter 2 
Installing RF Antenna & Feeder System
 
2-5 
 
(1) Bolt M12×220  (2) Connecting plate  (3) Bolt M12×45  (4) Expansion link 
(5) Fixed link  (6) Dwang  (7) Stiffener   
Figure 2-4 Structure of the antenna support on tower (unit: mm) 
2.4.2  Installation Requirements 
z  The installation plane of the antenna support shall be perpendicular to the level 
plane. 
z  The mast for the tower lightning rod shall be installed separately, satisfying the 
requirements for the lightning protection of all antennas. When the antenna 
support hangs over the tower platform, make sure that the antenna on the 
support is in the effective lightning protection coverage, as shown in Figure 2-5.