User's Manual

Axell D-SBR 3709S Repeater
PRODUCT DESCRIPTION AND USER’S MANUAL
6 Doc PN 00038UMCD Rev. 1.6 © Axell Wireless Ltd
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WARNING!!!
• 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 – indoors only
• Service area type and size
• Antenna type 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:
• The 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 35 cm
from any personnel within the area.