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P-2602HWNLI Support Notes
metals and substances with a high water content do not allow radio waves to pass through. Metals reflect
radio waves and concrete attenuates radio waves. The amount of attenuation suffered in passing through
concrete will be a function of its thickness and amount of metal re-enforcement used.
What are potential factors that may causes interference among WLAN products ?
Factors of interference:
1. Obstacles: walls, ceilings, furniture... etc.
2. Building Materials: metal door, aluminum studs.
3. Electrical devices: microwaves, monitors, electric motors.
Solution :
1.Minimizing the number of walls and ceilings
2.Antenna is positioned for best reception
3.Keep WLAN products away from electrical devices, eg: microwaves, monitors, electric motors,..., etc.
4. Add additional APs if necessary.
What's the difference between a WLAN and a WWAN ?
WLANs are generally privately owned, wireless systems that are deployed in a corporation, warehouse,
hospital, or educational campus setting. Data rates are high and there are no per-packet charges for data
transmission.
WWANs are generally publicly shared data networks designed to provide coverage in metropolitan areas
and along traffic corridors. WWANs are owned by a service provider or carrier. Data rates are low and
charges are based on usage. Specialized applications are characteristically designed around short, burst
messaging.
What is Ad Hoc mode ?
A wireless network consists of a number of stations without access points. Without using an access point
or any connection to a wired network.
What is Infrastructure mode ?
Infrastructure mode implies connectivity to a wired communications infrastructure. If such connectivity is
required the Access Points must be used to connected to the wired LAN backbone. Wireless clients have
their configurations set for "infrastructure mode" in order to utilise access points relaying.
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