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Location:Home >> Application >> Antenna Knowledge

Antenna Knowledge
What is a Distributed Antenna System (DAS)?
Author:Dawn Communication Co., Ltd.     Release time:2016-03-05     Clicks:411

A Distributed Antenna System (DAS) involves the use of several antennas as opposed to one antenna to provide wireless coverage to the same area but with reduced total power and additional reliability. Often times a DAS uses RF directional couplers and/or wireless amplifiers to split and amplify the wireless signal from the source out to the distributed antennas. In many cases a DAS will use a combination of low loss coaxial cabling as well as fiber optic cabling supporting radio over fiber (RoF) technology to distribute the wireless signals to the antennas. A Distributed Antenna System can be designed for use indoors or outdoors and can be used to provide wireless coverage to hotels, subways, airports, hospitals, businesses, roadway tunnels etc. The wireless services typically provided by a DAS include PCS, cellular, Wi-Fi, police, fire, and emergency services.

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