The two-way Emergency Responder Radio Antenna System (ERRAS) works by distributing the available outside radio signal over a system of small interior antennas within the building. The interior antennas disperse the radio signal throughout the building to provide distributed coverage.
Many buildings are constructed without a ERRAS system in place, which leads to inspection failures for jurisdictions where reliable radio frequency transmission throughout the building is required by law. Rather than an afterthought, it’s crucial to design and plan the ERRAS system from the start of a project. The first step for general contractors, electrical contractors, and building owners is understanding local code requirements to ensure your building complies and passes the necessary AHJ inspections in issuing a Certificate of Occupancy.