ZTE Corporation ZXMBW-RA25 用户手册
Chapter 6 Main Antenna Feeder System Installation
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Antenna Installation
Antennas of different models must be installed in different ways.
The installation supervisor should operate according to the
engineering design document and the safety instructions
provided with the antenna.
The installation supervisor should operate according to the
engineering design document and the safety instructions
provided with the antenna.
Caution:
Take precaution for personal and equipment safety during
the whole antenna installation process;
When adjusting the antenna that is already in operation, take
appropriate measures (for example, wear radiation-shielding clothing)
to avoid the direct radiation from the antenna to human body
to avoid the direct radiation from the antenna to human body
.
Technical Parameters
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Mounting height of the antenna
It is determined by network planning.
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Azimuth of the antenna
It is determined by network planning.
It is determined by network planning.
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Pitch angle of the antenna
It is determined by network planning, usually 0° ~ 10°,
adjustable.
It is determined by network planning, usually 0° ~ 10°,
adjustable.
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Antenna direction
It is determined by the azimuth of the antenna. Two
antennas in the same sector must point to the same
direction.
antennas in the same sector must point to the same
direction.
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Distance between diversity antennas
When diversity antennas are used (that is, the two antennas
in the same sector serve as mutual diversity reception
antenna, and the two antennas have the same vertical
height), the horizontal distance (d) between two antennas
must be as large as possible, with the following requirement:
d=10?~20? (or H/d=11)
Where, where d is the horizontal distance between the
diversity antennas, and H is the vertical height from the
antenna to the ground, ? is the carrier wavelength in meters.
For example, when the carrier is 2.5 GHz, the diversity
distance must be greater than 1.2 m.
in the same sector serve as mutual diversity reception
antenna, and the two antennas have the same vertical
height), the horizontal distance (d) between two antennas
must be as large as possible, with the following requirement:
d=10?~20? (or H/d=11)
Where, where d is the horizontal distance between the
diversity antennas, and H is the vertical height from the
antenna to the ground, ? is the carrier wavelength in meters.
For example, when the carrier is 2.5 GHz, the diversity
distance must be greater than 1.2 m.