Guidelines For Positioning The Odu - Alvarion BreezeMAX PRO-S CPE Product Manual

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2.1.2

Guidelines for Positioning the ODU

This section provides key guidelines for selecting the optimal installation locations
for the ODU.
CAUTION
ONLY experienced installation professionals who are familiar with local building and safety codes
and, wherever applicable, are licensed by the appropriate government regulatory authorities should
install outdoor units and antennas.
Failure to do so may void the BreezeMAX product warranty and may expose the end user or
Service Provider to legal and financial liabilities. Alvarion and its resellers or distributors are not
liable for injury, damage or regulation violations associated with the installation of Outdoor Units or
antennas.
Select the optimal locations for the equipment using the following guidelines:
The ODU should be mounted on a 1"-4" pole. Its location should enable easy
access to the unit and its connectors for installation and testing.
The higher the placement of the antenna, the better the achievable link
quality.
The antenna should be installed to provide a direct, or near line of sight with
the Base Station antenna. The antenna should be aligned to face the general
direction of the Base Station.
In some cases it might be necessary to up/down-tilt the antenna. An optional
Tilt accessory for the ODU providing a tilt range of +/-15° is available from
Alvarion. The tilt option might be necessary to either improve the link
conditions or, if the SU is too close to the Base Station, to reduce the receive
signals strength. As a rule of thumb, if the SU is located at a distance of less
than 300 meters from the Base Station, it is recommended to up-tilt the
antenna by approximately 10° to 15° (especially in line-of-sight conditions) to
avoid saturation of the receivers by too strong signals.
Outdoor units with a connection to an external antenna should be installed as
close as possible to the antenna.
BreezeMAX CPEs Product Manual
Installing the ODU of the PRO-S CPE
21