User's Manual

Installation
BreezeNET BU-DS.11/RB-DS.11 2-7 User’s Guide
Physical Obstacles
Any physical object in the path between two bridges can cause signal attenuation.
Common obstructions are buildings and trees. Any buildings or other physical
structure such as trees, mountains or other natural geographic features higher than the
antenna and situated in the path between the two sites can constitute obstructions.
Install outdoor antennas high enough to avoid any obstacles, which may block the
signal.
Minimal Path Loss
Path loss is determined mainly by several factors:
•4 Distance between sites – Path loss is lower and system performance better when
distances between sites are shorter.
•5 Clearance – Path loss is minimized when there exists a clear line of sight. The
number, location, size, and makeup of obstacles determine their contribution to
path loss.
•6 Antenna height – Path loss is lower when antennas are positioned higher. Antenna
height is the distance from the imaginary line connecting the antennas at the two
sites to “ground” level. “Ground” level in an open area is the actual ground. In
dense urban areas, “ground” level is the average height of the buildings between
the antenna sites.