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.
2.3.3Rooftop Installation
Rooftop installations offer several advantages:
??Fewer obstacles in the path.
??Improved performance due to greater height.
2.3.4Antennas for Outdoor Applications
The
Point-to-Point
The
Point-to-Multipoint
Setting up a
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