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4.10.3.2 Install Directional Antenna on Tower
Following are guidelines for installing a directional antenna at the cell site.
First, assemble the antenna and the upper and lower racks, as shown in Figure 4-18.
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Follow standard transport procedures to hoist the antenna to the target location.
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Using expansion screws, fix the support pole vertically to the ground (or concrete
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pillars on a rooftop), and fasten it with steel wires.
Mount the antenna assembly onto the pole using the installation racks.
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Figure 4-18: Assemble Directional Antenna
Once the antenna and eNB are installed securely in the proper position, verify grounding and
lightning protection. Apply waterproofing as explained in
4.10.3.3 Install Directional Antenna on Rooftop
When installing a directional antenna on a rooftop, it is easier to install if the antenna andeNB
are first attached to a mounting pole that will then be installed on the roof. Begin by wiring
the lightning arrester on the top of the mounting pole. Next, install the directional antenna
and eNB on the mounting pole with the provided supports. Ensure the directional antenna is
vertically plumb with the proper down tilt for desired antenna propagation, as specified in the
operator's network design plan.
In situations where there is a wainscot on the roof and it is taller than 3.9 feet (1.2 meters),
attach the fixed mounting pole and antenna on the wall with expansion screws. If the wainscot
is less than 3.9 feet (1.2 meters) tall, fix the mounting pole to the wall with expansion screws
and attach the base of the mounting pole to an adequate base support frame to stabilize the
mounting pole.
section 4.10.6
31
of this document.
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