User’s Manual for CR-SIW21WB-20
www.cerevotech.com
2.3 Accessories Selection
STANDARD PACKAGE, WHICH INCLUDE:
1.
CR-SI series in-building repeater
2.
9V DC plug-in power supply
3.
Installation Tools
ADDITIONAL EQUIPMENTS REQUIRED FOR INSTALLATION
：
：
：
：
1.
Donor Antennas
2.
Service Antennas
3.
Coaxial Cables
4.
Power Splitters or Couplers (Necessary for multi-antennas or multi-spots
coverage)
Donor Antennas Selection
Donor antennas are applied for obtaining signals from cell tower on DL, and
retransmitting the amplified signals to cell tower on UL. It requires high directional
capability and narrow beam width. Cerevo recommend you use Yagi Antenna as a
Donor Antenna:
Yagi Antennas
Service Antennas Selection
Service antennas are used for retransmitting the amplified signals to the coverage
areas on DL, and obtaining the signals from cell phones on UL. The selection of
service antennas depends on the actual applications. For example, if if the target
coverage areas need Omni-directional coverage, then omni-directional antennas,
such as ceiling antennas or card antennas, which will be the best application.
Ceiling antennas installed on the ceiling is often used inside personal houses,
offices, restaurants or shopping malls. Card antennas, with lower gain and smaller
