SonicWall SonicWave Deployment Guide
Wireless Access Point Placement Considerations
50
RF Interference
RF interference from home, office, and medical equipment is a common challenge in wireless deployments.
When considering RF interference sources, remember that most cell/wireless phones and Bluetooth devices
only utilize the 2.4 GHz frequency. As such, they should not cause significant interference with wireless
networks operating in the 5 GHz frequency.
Common RF Barrier Types
Barrier Type RF Signal Blocking
Open air Very Low
Glass, wood, drywall, cube partitions Low
Floors and outer walls, aquariums
(brick/marble/granite/water)
Medium
Concrete, security glass, wire mesh,
stacked books/paper
High
Metal partitions, desks, reinforced
concrete
Very High
Common Sources of RF Interference
Interference
Source
Possible Range Bands Affected
2.4 GHz phones 100 feet 2.4 GHz
(802.11 b/g/n)
Bluetooth devices 30 feet 2.4 GHz
(802.11 b/g/n)
Microwave oven 10-20 feet 2.4 and 5 GHz,
depending on
shielding
Scientific and
medical
equipment
Short distance,
varies
2.4 and 5 GHz,
depending on
shielding
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