Outdoor Installation Considerations; Site-Selection Factors - Black Box LW0050A Manual

Closed Indoor Areas
A floor divided into individual offices by concrete, masonry, or sheet-rock walls. A
house is also a closed indoor area.
The suggested maximum distance between a standard Access Point and a
workstation is 150 ft. (50 m).

5.3 Outdoor Installation Considerations

This section describes various considerations to take into account when planning
an outdoor installation, including site selection, antenna alignment, antenna
diversity, antenna polarization, antenna seal, and cell size.
5.3.1 S -S
ITE ELECTION
When selecting a location for external antennas, remember to take into
consideration the following guidelines:
• Minimum distance between sites
• Maximum height above the ground
• Maximum line-of-sight clearance
• Maximum separation between antennas (diversity option)
Path of Clearest Propagation
A propagation path is the path that signals traverse between the antennas of any
two bridges. The "line" between two antenna sites is an imaginary straight line
which may be drawn between the two antennas. Any obstacles in the path of the
"line" degrade the propagation path. The best propagation path is, therefore, a
clear line of sight with good clearance between the "line" and any physical
obstacle.
Physical Obstacles
Any physical object in the path between two bridges can cause signal attenuation.
Common obstructions are buildings and trees. If a bridge's antenna is installed
indoors, the walls and/or windows between the two sites are physical obstructions.
If the antenna is positioned outdoors, any buildings or other physical structures
such as trees, mountains, or other natural geographic features higher than the
antenna and situated in the path between the two sites can be obstructions.
Install indoor antennas as close as possible to a window (or wall if a window is not
accessible) facing the required direction. Avoid metal obstacles such as metal
CHAPTER 5: Planning and Installing Wireless LANs
F
ACTORS
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