Passive DAS utilize an antenna to collect cellular signal sources from outside the building, which are then amplified and redistributed throughout the building using a network of coaxial cables and antennas. As the solution’s name implies, a “passive” DAS distributes these signals without the use of devices that require AC or DC power.
Most passive DAS utilize a bi-directional amplifier (BDA), small cell or base station transceiver (BTS) to supply the outside source signal to a distribution network of coaxial cable, power splitters, couplers, and antennas.
Passive DAS are carrier agnostic, supporting multiple carriers via one solution, ensuring users of various carriers an equal experience. They are ideal in small or medium applications (up to 100,000 square feet) with the appropriate signal source. Passive DAS are less expensive than active DAS solutions, can be installed in less time.