11.Wireless Technologies

Wireless networks rely on radio transmissions to communicate instead of the network cabling used for normal computer networks. Radio frequencies create Electromagnetic (EM) fields, which become the medium to transfer signals from one computer to another. As you go away from the hub, or from the main equipment generating the wireless network’s radio transmissions, the strength of the EM field reduces and the signal becomes weak. EM fields are also prone to interference, which can be introduced by walls, reflected radio waves, and the presence of other EM fields. The presence of wireless telephones, microwave ovens, television sets, and a number of other devices can potentially interfere and reduce the signal strength of wireless devices.