User's Manual
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different mobile operators or various mobile systems.
Connect the outdoor antenna to the booster connector marked OUTDOOR with 10
meters 3D-FB Coaxial cable with N male connector
Important : Outdoor antenna installation ---Notes:
In order to avoid interference, please note that the outdoor antenna should be far
away from the following objects of metal, high-voltage line, RF antenna and
high-voltage transformer.
Booster is a two-way signal Booster. So proper isolation between outdoor antenna
and indoor antenna is necessary in order to avoid self-oscillation.
The minimum distance between outdoor antenna and indoor antenna shall be more
than 10 meters; again the direction of outdoor and indoor antennas shall be opposite.
As shown in the below illustration, the booster the downlink signal
r
from the tower
and send to the indoor antenna hereafter. If the distance between outdoor antenna
and indoor antenna is less than the required distance, the amplified signal
R
will go
back from indoor antenna to outdoor antenna. So it will lead to self-oscillation and
reduce the coverage area, also the bad calling quality could happen at the same time,
and the worse is that the mobile network could be influenced badly and the operators
will finally come to shut off the booster system.
If isolation can’t be achieved by the limited distance, the roof of the building or any
other barriers can be used in between to increase isolation.