Ecomm / Public Safety 911 DAS Systems

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A DAS is a network of antennas that sends and receives radio signals on a carrier’s licensed frequencies, thereby improving voice and data connectivity for end users. In its most simplified form, a DAS has two basic components:

A signal source

A Distributed Antenna System, as the name implies, “distributes” signal. But it generally doesn’t generate the radio signal itself. A DAS needs to be fed signal from somewhere. There are four typical signal sources: off-air (via an antenna on the roof), an on-site BTS (Base Transceiver Station), and finally the newest approach: small cells.

Distribution system

Once received, the radios signal must be distributed throughout the building. Using a series of antennas interconnected to give the coverage required.