User Manual

Axell BSR 3308-PS NFPA
Product Description and User’s Manual
8 Doc PN 4000004131 Rev. 2.7 © Axell Wireless Ltd
2.2 Service Antenna Requirements
.
WARNINGS!!!
• The installer is held accountable for implementing the rules required for
deployment.
• Good engineering practice must be used to avoid interference.
• Output power should be reduced to solve any IMD interference issues.
2.2.1 Required Antenna Information
The following antenna requirements, specifications and site considerations should be
met:
• Type of installation – indoor only
• Service area type and size and characteristics
• Height
• Length and type of coaxial cable required for connecting the antenna to the Repeater
and the attenuation.
2.2.2 Recommended Antennas
The following describes the requirements for an omni-directional mobile used for indoor
applications.
Specifications:
• One or a combination of the following antennas can be used: Ceiling Mount Patch
antenna, Wall Mount Patch antenna, Corner Reflector.
• Choose an antenna with high side lobe attenuation which enables maximum isolation
from the service/ mobile antenna.
• Maximum Antenna Gain = 37 – (33dbi – # of antennas in dbi – cable losses in dbi).
2.2.3 Installation Criteria
Determine the antenna installation configuration, according to the transmission
requirements and the installation site conditions.
Installation requirements:
• An indoor antenna should be installed at a convenient location. It should be free of
metallic obstruction.
• Install the Service Antenna at the designated height and tune it roughly toward the
Service coverage area.
• Installation of this antenna must provide a minimum separation distance of 30 cm
from any personnel within the area..