Wireless Installation Considerations - D-Link DSM-312 User Manual

Section 1 - Product Overview

Wireless Installation Considerations

The DSM-312 allows you access to your network using a wireless connection from virtually anywhere within the operating
range of your wireless router or access point. Keep in mind, however, that the number, thickness and location of walls, ceilings,
or other objects that the wireless signals must pass through, may limit the range. Typical ranges vary depending on the types
of materials and background RF (radio frequency) noise in your home or business. The key to maximizing wireless range is to
follow these basic guidelines:
1. Keep the number of walls and ceilings between the wireless router/AP and other network devices to a minimum
- each wall or ceiling can reduce your adapter's range from 3-90 feet (1-30 meters.) Position your devices so
that the number of walls or ceilings is minimized.
2. Be aware of the direct line between network devices. A wall that is 1.5 feet thick (.5 meters), at a
45-degree angle appears to be almost 3 feet (1 meter) thick. At a 2-degree angle it looks over 42 feet (14 meters)
thick! Position devices so that the signal will travel straight through a wall or ceiling (instead of at an angle) for
better reception.
3. Building Materials make a difference. A solid metal door or aluminum studs may have a negative effect on
range. Try to position access points, wireless routers, and computers so that the signal passes through drywall
or open doorways. Materials and objects such as glass, steel, metal, walls with insulation, water (fish tanks),
mirrors, file cabinets, brick, and concrete will degrade your wireless signal.
4. Keep your product away (at least 3-6 feet or 1-2 meters) from electrical devices or appliances that generate RF
noise.
5. If you are using 2.4GHz cordless phones your wireless connection may degrade dramatically or drop completely.
Make sure your 2.4GHz phone base is as far away from your wireless devices as possible. The base transmits a
signal even if the phone in not in use.
D-Link DSM-312 User Manual 6