2. Introduction to Boosters
2.1 System Introduction
A booster is a device that receives the RF signal, amplifies and then retransmits
it to the weak or blind area. Boosters overcome the attenuation caused by
propagation loss and obstacles.
Booster solutions are used in many different applications, such as basements,
apartments, parking lots and highway, mountain areas etc, where mobile phone
signals cannot penetrate.
Extending radio coverage into these dead zones, using the booster, allows
mobile phones to establish a connection.
2.2 General Installation Layout
Figure 1 Outdoor Application
Above provides a typical installation layout of an outdoor project. The booster is connected via
coaxial cables to donor and service antennas. The donor antenna is placed on one side of the
mountain, pointing to the donor BTS to receive the signals. The service antenna is placed on
the other side, pointing to the coverage area to make the coverage. By taking advantage of the
mountain between them, the isolation requirement can be met. Mobile signals may then
transmit via the service antenna, booster and donor antenna to the donor BTS