DAS: Distributed Antenna System
The term DAS refers to a system of antennas that improves coverage and capacity of cellular and other frequencies. There are generally two types of DAS iDAS (Indoor) and oDAS (outdoor). Most DAS installations are indoors (in-building) or venue specific. DAS systems can be active or passive and are implemented by small businesses and organizations to boost cellular signal strength in their buildings thus maintaining workplace productivity.