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Figure 3-18: Assemble Directional Antenna
3.7.5 Install Directional Antenna on Rooftop
When installing a directional antenna on a rooftop, it is easier to install if the antenna and eNB
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.
If the roof does not have a wainscot, use expansion screws to fix the antenna mount on an
adequate base support frame, such as concrete, or properly weight the frame to eliminate
wind movement. Use guy wires to further stabilize the mounting pole.
Once the antenna and eNB are installed securely in the proper position, complete
weatherproofing and verify grounding and lightning protection are satisfactory.
3.8 Recheck eNB Status in Software
After the eNB has been installed on the outdoor tower or wall, return to the GUI to ensure the
eNB status is still reported as active and it is connected to the backhaul network. Refer to
section 3.6.
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