D-Link Air DWL-520 Manual page 6

Wireless Basics
1. Keep the number of walls and ceilings between the access point and your
receiving device to a minimum - Each wall or ceiling can reduce your D-
Link Air Wireless product's range from 3-90 feet. For some business or
large residential home deployment, I may be more beneficial to have
more than one access point with overlapping coverage.
2. Be aware of the direct line between Access Points, Residential Gateways,
and Computers - A wall that is 1.5 feet thick, at a 45 degree angle
appears to be almost 3 feet thick. At a 2 degree angle it looks over 42
feet thick! Try to make sure that the AP and Adapters are positioned so
that the signal will travel straight through a wall or ceiling for better
reception.
3. Building Materials make a difference - A solid metal door or aluminum
studs may have a negative effect on range. Again, try to position Access
Points, Residential Gateways, and Computers so that the signal passes
through drywall or open doorways and not other materials.
4. Make sure that the antenna is positioned for best reception by using the
software signal strength tools included with your product.
5. Keep your product away (at least 3 -6 feet) from electrical devices that
generate RF noise, like microwaves, monitors, electric motors, etc.
For the average residence, range should not be a problem.
experience low or no signal strength in areas of your home that you wish
to access, consider positioning the Access Point in a location directly
between the Residential Gateways and/or Computers that will be
connected. Additional Access Points can be connected to provide better
coverage in rooms where the signal does not appear as strong as desired.
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6
If you