User's Manual

Planning and Installing Wireless LANs
BreezeNET PRO.11 Series 4-14 User’s Guide
Minimal Path Loss
Path loss is determined mainly by several factors:
• Distance between sites
Path loss is lower and system performance better when distances
between sites are shorter.
• 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.
• 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.
4.2.2. Rooftop Installation
Warning: Rooftop antenna installations are extremely dangerous! Incorrect
installation may result in death, serious injury and/or damage. Such
installations should be performed by professional antenna installers
only!
Rooftop installations offer several advantages:
• Increased antenna range.
• Less obstacles in path.
• Improved performance due to greater height.
• Reduced multipath problems.
4.2.3. Antennas for Outdoor Applications
The BreezeNET PRO.11 Series can be used in point-to-point or point-to-
multipoint configurations.