- The density of the materials used in a building’s construction determines the number of walls the RF signal can pass through and still maintain adequate coverage. Concrete and steel walls are particularly difficult for a signal to pass through. These structures will weaken or at times completely prevent wireless signals.
- Electrical interference: Electrical interference comes from devices such as computers, refrigerators, fans, lighting fixtures, or any other motorized devices. The impact that electrical interference has on the signal depends on the proximity of the electrical device to the wireless access point. Advances in wireless technologies and in electrical devices have reduced the impact that these types of devices have on wireless transmissions.
Wireless Obstacles Found Indoors
|
Obstruction |
Obstacle Severity |
Sample Use |
|
Wood/wood paneling |
Low |
Inside a wall or hollow door |
|
Drywall |
Low |
Inside walls |
|
Furniture |
Low |
Couches or office partitions |
|
Clear glass |
Low |
Windows |
|
Tinted glass |
Medium |
Windows |
|
People |
Medium |
High-volume traffic areas that have considerable pedestrian traffic |
|
Ceramic tile |
Medium |
Walls |
|
Concrete blocks |
Medium/high |
Outer wall construction |
|
Mirrors |
High |
Mirror or reflective glass |
|
Metals |
High |
Metal office partitions, doors, metal office furniture |
|
Water |
High |
Aquariums, rain, fountains |