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CN1100 Access Point - Installation Guide - G7601 - 3.8
Correct orientation and tilt of the antennas is the most critical part of the installation.
Alignment of the antennas consists of two steps, azimuth orientation (horizontal) and mechanical tilt
adjustment (vertical).
Azimuth is the horizontal orientation of the antenna on the horizon. The antenna is installed in the
desired azimuth direction.
Compass directions are measured in degrees, with North = 0° (or 360°), East = 90°, South = 180°, and
West = 270°, as shown on the compass rose.
Tilt of the antenna is the vertical angle of the antenna in relation to the horizon. It is also referred to
as elevation or inclination of the antenna.
The angle of elevation is measured in positive or negative degrees, with an angle above the horizon
being positive and below the horizon being negative.
Tilt is used when antenna radiation must be redirected to concentrate the energy in a new direction.
Downward tilt (downtilt) is most common. Inclination up, called uptilt, is very rare and only used in
extreme cases.
Antenna tilt is typically adjusted to zero degrees. The site installation plan indicates any deviation
from the normal zero inclination for each antenna.
