Programming instructions

Installation
2-7
Alvarion
Cell Size/Link Distance
In a multipoint environment, cell size is determined by the maximum
possible distance between the BU-DS.5800 and a RB-DS.5800 unit. For
open outdoor areas with an unobstructed line of sight between the BU-
DS.5800 and the RB-DS.5800 units, the suggested maximum distance
is up to 11 miles (18 km), using the 90
° sector antenna available from
Alvarion and the integrated 21dBi antenna.
Available Antennas
The following table lists several antennas suitable for BreezeNET
DS.5800 units.
Outdoor installations must have a clear line-of-sight between antennas.
Solid obstacles such as buildings or hills can prevent the establishment
of a link while partial obstacles such as trees or traffic can reduce
range. Extended coaxial cables can cause an increase in signal loss and
a reduction in range.
Table 2-1: Available Antennas
NOTE:
Cable length should be minimized in order to gain maximum link budget
Model Ant.
Gain
Ideal for: Dispersion Dimensions
H x W x D
OMNI-8-5.8 8 dBi Establishing 360°
coverage for
outdoor multipoint
links.
360°H/13° V 14" x 5/8"
Tubular
SEC5-17V-90-5.8 17
dBi
Medium to long
range Covering ¼
of a cell (90 degree
sector antenna). Tx
power must be
reduced to 18dBm.
90°H/8° V 26" x 9" x 8"
UNI-28-5.8 28.5
dBi
Long range
outdoor point-to-
point links.
6°H/6° V 24" parabolic