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ZXC10 CBTS O1 Hardware Installation Manual
Antenna
Antenna support and tower are properly installed.
Antenna model is according to networking planning design.
Actual hanging height of an antenna is according to network planning
design.
RF and GPS antennas are included in the protection area of a lightning
arrester (area within 45
Azimuth of antenna is according to network planning. Azimuth error of
directional antenna is no more than 5
Actual mechanical down tilt of an antenna is according to network
planning and two uni-polarization antennas have same down tilts.
Actual electrically controlled down tilt of an antenna is according to
network planning and two uni-polarization antennas have consistent
down tilt.
All antenna poles are firmly installed and properly grounded. Vertical
error is less than 2
Receive/transmit horizontal interval of an omni-directional antenna is
not less than 137.79 inch (3.5 m).
An omni-directional antenna is at least 59.05 inch (1.5 m) away from
the tower while a directional antenna is at least 39.37 inch (1 m) away
from the tower.
While installing an omni-directional antenna on a roof, horizontal
interval between omni-directional antenna and antenna lightning
arrester is not less than 98.42 inch (2.5 m).
An omni-directional antenna installed on a roof avoids blind area.
Main diversity antennas match each other within the sectors and the
set top jumpers on the rack.
Diversity distance is 137.79 inch (3.5 m) for 800 MHz system, 59.05
inch for 1.9G system, and 263.77 inch (6.7 m) for 450 MHz system.
Vertical interval between directional antennas within different sectors,
installed on same antenna support is more than 23.62 inch (0.6 m).
GPS spatial angle is more than 90
While installing GPS antenna on building top, it is equipped with an
independent lightning arrester.
Feeder SWR
SWR is measured after antennas and all feeders are installed.
Indoor 1/2" jumper terminal is connected with an SWR tester for
testing. SWR should be less than 1.5.
Related Voltage Standing Wave Ratio (VSWR) value is specified, and a
VSWR test diagram is available.
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Confidential and Proprietary Information of ZTE CORPORATION
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down tilt from lightning arrester).
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. All antennas must be vertical to ground.
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