Distributed Antenna System in Illinois

Distributed Antenna System guidance for Illinois building owners, technicians, and integrators. State-specific ERRCS requirements, AHJ expectations, and next steps.

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Distributed Antenna System support in Illinois

A DAS (Distributed Antenna System) is the network of antennas and cabling that distributes radio signals throughout a building. In ERRCS applications, the DAS connects to bi-directional amplifiers (BDAs) and extends enhanced public safety signals to all areas of the building. The DAS typically includes donor antennas that capture outdoor signals, coaxial or fiber cabling, and indoor coverage antennas strategically placed throughout the structure.

BDA Systems supports owners, contractors, and technical teams throughout Illinois. We align project scope with local AHJ expectations, adopted code language, and the practical realities of getting from failed testing to final approval.

Key Compliance Questions

  • What is the difference between DAS and BDA?
  • Can a commercial DAS serve as ERRCS?
  • How many antennas does a DAS need?

Move the project forward

Speak with the team handling Illinois projects, code interpretation, and field coordination.

Illinois code snapshot

  • Adopted code: IFC 2021
  • AHJ: State Fire Marshal / Local AHJ

Distributed Antenna System in Illinois

Get a project-specific plan for Illinois with fast routing to the right technical or compliance team.