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4.10.3 Install eNB and RF Antenna
Keep the RF cable length between the eNB and antenna as short as possible to minimize signal
attenuation. Typically, the eNB will be located within a few feet/meters from the antenna.
Only one antenna may be connected to a single Nova-243 eNB.
Operators can use an omnidirectional ("omni") antenna or a directional antenna with the
Baicells eNB. An omni antenna covers a full 360 degrees, while a directional antenna radiates
in a specific direction based on angle (e.g., 45°, 90°, etc).
Note: Baicells does not manufacture antenna components; please refer to the list of
distributors on the Baicells website: https://na.Baicells.com/where-to-buy/. Make
sure to match the frequency range of the antenna with the eNB, and consult the
regulatory rules concerning output power specific to your location.
This section explains how to install an omni or directional antenna on an outdoor structure.
For an omni installation refer to
to
section 4.10.3.2
provided in
section 4.10.3.3
4.10.3.1 Install Omnidirectional Antenna
Following are guidelines for installing an omnidirectional antenna at the cell site.
The mounting pole diameter must be between 1.4 inches to 2 inches (35 to 50 millimeters).
•
Typically, operators use a 2-inch/50-mm round, steel-made pole.
The top of the pole and the clamp beneath the antenna should be at the same level once
•
the omni is installed on the pole.
For optimal performance, ensure the omni antenna is precisely vertical.
•
•
The top of the antenna should fall within the 45-degrees safety angle towards the
lightning rod.
•
There should be no metal objects within 3.3 feet (1 meter) of the omni antenna. Use an
independent lightning rod that is high enough to keep all antennas under its protection
cover.
•
Ensure the antenna is high enough to meet the coverage requirements specified in the
operator's network design plan.
If it is not possible to install an independent lightning rod due to environmental limitations,
ensure that the pole supporting the lightning rod is at least 3.3 feet (1 meter) away from the
omni antenna. Follow standard transport procedures to hoist the antenna to the target
location.
Once the antenna and eNB unit are installed securely in the proper position, verify grounding
and lightning protection. Apply waterproofing as explained in
section
4.10.3.1. For a directional antenna installation, refer
(tower, pole). Additional information concerning roof installations is
(roof).
section 4.10.6
30
of this document.
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