![]() The quality of the connection will depend mainly on the nature of objects such as walls and partitions.Ī standard office wall offers little resistance to the crossing of radio waves, however a concrete wall will block them almost totally. Generally, when the Fresnel zone is blocked with more than 20%, it will result in a reduced data rate and a risk of loss of communication intermittently.įor an indoor radio link installation (factory, offices, warehouses …) the radio will operate quite well even if there is no line of sight between the antennas. Nevertheless in case of a partial or complete obstruction it may be possible to compensate the loss of signal with high gain directional antennas (for short distance and if obstacles are trees). Loss in the air (variable depending on the frequency)įor outdoor radio link installation, you will get a strong signal if the visibility is perfect (Clear Line of Sight) between the two antennas and if the Fresnel zone obstruction do not exceed 20%, see drawings below.Losses in the cables and various accessories (connectors, lightning surge protector).The coverage range of a wireless link depends on the following factors:
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