xG Technology CN1100 Installation Manual page 33

When multiple antennas are installed on the tower, mast, or other support structure, each antenna is
installed at the same height (vertical level), using standard installation practice. On a tower structure,
mount the antennas on a vertical or horizontal member.
Most towers have only three tower legs. When installing four antennas, consider the required degree
separation for the desired coverage. Determine which tower leg will best accommodate two of the
antennas that will not interfere mechanically with the two antennas mounted on the other two tower
legs.
Mount the antenna in the desired azimuth direction, as shown in the site plan.
Use a magnetic compass to determine the optimum mounting location, and then mount the antenna
into place. If a physical compass is not available, a free smart phone compass app can also be used.
After mounting, again use the compass to ensure that the antenna azimuth is correct. Do not fully
tighten the mount until completing the mechanical tilt adjustment.
Before fully tightening the mounting bolts, measure and adjust the tilt of the antenna with an
inclinometer positioned against the back of the antenna.
After installing the cable, each antenna is then installed and oriented as required by the network site
plan. The rest of the equipment is then installed and connected.
The steps in this example, for 360° coverage, assume that four antennas, at 90° angles, are to be
installed.
1. Install antenna #1 at the Northern most mounting location.
2. Adjust the azimuth (horizontal orientation) of the antenna to a compass reading of 0° (degrees)
magnetic.
3. Measure and adjust the tilt of the antenna to 0° with an inclinometer positioned against the back
of the antenna. Securely tighten all mounting bolts.
4. Install antenna #2 at the Eastern most mounting location.
5. Adjust the azimuth (horizontal orientation) of the antenna to a compass reading of 90° magnetic.
6. Measure and adjust the tilt of the antenna to 0° with an inclinometer positioned against the back
of the antenna. Securely tighten all mounting bolts.
7. Install antenna #3 at the Southern most mounting location.
8. Adjust the azimuth (horizontal orientation) of the antenna to a compass reading of 180° magnetic.
CN1100 Access Point - Installation Guide - G7601 - 3.8
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