2.7 Connection of 2.4 GHz Portable StationsInstallation Manual 912.7.3 Site PlanningChoosing the best site for the CS requires careful planning and testing of essential areas. Thebest location may not always be convenient for installation. Read the following informationbefore installing the unit.Understanding the Radio WavesCharacteristics of Radio WavesThe transmission of radio waves and the CS coverage area depend on the structure andmaterials of the building.Office equipment, such as computers and fax machines, can interfere with radio waves. Suchequipment may create noise or interfere with the performance of the PS.The illustration below shows the special transmitting patterns of radio waves.1. Radio waves are reflected by objects such as those made of metal.2. Radio waves are diffracted by objects such as metallic columns.3. Radio waves penetrate objects such as those made of glass.Relationships Between Radio Waves and Building Structure and Materials• The CS coverage area is affected more by the building materials and their thickness thanthe number of obstacles.• Radio waves tend to be reflected or diffracted by conductive objects and rarely penetratethem.• Radio waves tend to penetrate insulated objects and are rarely reflected by them.• Radio waves penetrate thin objects more than thick objects.• The table below shows the transmission tendency of radio waves when they reach objectsmade from various materials.CSColumn3. Penetration2. Diffraction1. Reflection
