User's Manual

Siting CCUs/Repeaters
CCU 100 and Repeater 100 Installation Guide 11
Proprietary and Confidential
Grounding the Antenna System
To minimize the potential for a lightning event, it is essential that remote/external antenna
systems be properly grounded. Proper grounding prevents the accumulation of static
charges on the antenna system and also provides a direct discharge to ground for any
acquired charges.
All grounding materials and procedures must meet or exceed local codes. Use coaxial
grounding kits recommended by the coaxial cable manufacturer.
Warning Under no circumstances should the antenna grounding wires be run
inside a building. Always install ground bars and grounding material on the
exterior of buildings.
The recommended procedure for grounding an antenna system is as follows:
• Mount a copper ground bar near the antenna. This is the top ground bar.
• Mount a second copper ground bar near the CCU/Repeater. This is the bottom ground
bar.
• Connect the two ground bars with a #6 gauge green jacketed stranded wire or a #2
solid copper wire.
• Ground the antenna mount and the top coaxial ground kit to the top ground bar.
• Ground the bottom coaxial ground kit and the lightning arrestor to the bottom ground
bar.
• Connect the bottom ground bar to one or more earth ground rods.
• All ground wires should be connected straight to ground, with no right angle turns or
sharp bends in the wires.
• Install ground leads on coaxial grounding kits without loops or bends and install
grounding kits in the proper orientation per the manufacturer's specifications.