Planet Technology 802.11g Wireless PCI Adapter WL-8317 - Manual (Page 7)

1.5 Installation Considerations
Beware of the walls and ceilings. Each wall or ceiling can reduce your wireless cover range
form 3-90 feet. Properly position your Access Points, Residential Gateways, and computers so
that the number of walls or ceilings residing between Access Points and clients is minimized.
Building materials make a difference – A solid metal door or aluminum studs may have a
negative effect on signal coverage range. Try to properly position Access Points and computers
with wireless adapters so that there would be less obstacles existing between them.
Keep your wireless LAN devices away from microwaves, cordless phones and child incubators.
It is likely that the latter will cause interferences to the operation of your wireless LAN devices.
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