User Manual

CHAPTER 2. Installation
2-74 © SAMSUNG Electronics Co., Ltd.
The method of posting the omni antenna is as follows:
y The transmitting antenna should be installed much higher than the receiving antenna in
order to increase the separation between the antennas.
y The lag distance between the antennas should be set according to the antenna posting
standard.
The lag-distance when the antenna is installed is shown in the table below:
Table 2.4 Antenna Lag-Distance
Category Distance(m) Note
Transmission(Tx)-Transmission
Reception(Rx)-Reception
Transmission-Reception
(between neighboring sectors)
Transmission-Reception
(Perpendicular)
Iron Tower-Antenna
Over 1.8
Over 3.6
Over 1.8
Over 1.8
Installed considering the
beam angle of the sector
Between two ends of antenna
Figure 2.55 Antenna Posting Method
1800 mm
Main Radiation Direction
Plane Figure
Rx
Tx/Rx
Rx
Tx/Rx
Tx/Rx
Rx
1800 mm
Sector Antenna
Tx/Rx
Rx
Tx/Rx and Rx antennas should be
installed at the same height.
Omni Antenna
Tx/Rx
Rx
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