Antenna - Alvarion BreezeMAX 3500 System Manual

Chapter 3 - Commissioning
Aligning the Subscriber Unit Antenna
The LINK QUALITY bar display is located on the bottom panel of the
outdoor unit. LED 1 (WLNK) indicates that the wireless link is active,
and is turned on once the SU completed the Network Entry process.
LEDs 2 to 9 indicate the quality of the received signal. The higher the
number of LEDs that are on, the better the quality of the received
signal.
The link quality can be estimated more accurately using the Link
Quality Display option in the SU Installer Monitor program. Refer to
Start Link Quality Display
This section describes how to align the Subscriber Unit antenna using
the LINK QUALITY bar display or the Start Link Quality Display option
of the Monitor program.
To align the Subscriber Unit antenna:
1. Point the antenna towards the general direction of the Base Station.
2. Verify that the power indication of the unit is on.
3. Verify that at least one LED (LED 2) of the LINK QUALITY bar
display is on, indicated that the unit is synchronized with the AU. If
the SU is not synchronized with the AU, ensure that all parameters
are configured properly. If the unit is still not synchronized with the
AU, improve the quality of the link by changing the direction of the
antenna or by placing the antenna at a higher or alternate location.
4. Rotate the antenna until the maximum Link Quality reading is
achieved. If you encounter prolonged difficulty in achieving the
expected link quality, try to improve the reception quality by placing
the antenna at a higher point or in an alternate location.
NOTE
Ensure that the front of the antenna is always facing the Base Station. However, in
certain conditions, such as when the line of site to the Base Station is hampered, better
reception may be achieved using a reflected signal. In this case, the antenna is not
necessarily directed toward the Base Station.
5. Secure the unit firmly to the pole.
3-12
on page B-19 for more details on this option.
BreezeMAX System Manual