In-Building Coverage to Keep Your People Safe

What is BDA/DAS?

A Bi-Directional Amplifier (“BDA”) or Distributed Antenna System (“DAS”) amplifies and distributes voice communication in buildings to ensure first responders can communicate in every part of your building. Often referred to as an Emergency Responder Radio Communication System (“ERRCS”) for public safety, BDA/DAS ensure clear, reliable communication in large facilities during emergency situations.

Stronger Indoor Radio Coverage
Ensures uninterrupted communication for public safety and private two-way radio systems across any frequency band.

Compliance with Local Safety Mandates
Many jurisdictions require adequate in-building radio coverage for public safety networks before granting occupancy approval.

Cellular (LTE) Solutions
Aerowave offers BDA/DAS solutions to boost your LTE cellular solution for all the major carriers, ensuring your team always stays connected.

Why do you need BDA/DAS?

In an emergency, clear, uninterrupted communication can mean the difference between life and death. During the Uvalde school shooting, first responders faced radio failures inside the building, delaying coordination and response efforts. Situations like these underscore a critical flaw in many buildings—weak or non-existent radio and cellular signals that prevent emergency teams from communicating effectively when seconds matter most.

BDA (Bi-Directional Amplifier) and DAS (Distributed Antenna System) solutions eliminate dead zones by boosting and distributing signals throughout schools, hospitals, high-rises, stadiums, and other large facilities. Many public safety agencies and local jurisdictions now require BDA/DAS installations to ensure first responders can maintain radio contact inside buildings, even in basements, stairwells, and thick-walled structures.

Beyond emergency response, BDA/DAS improves everyday operations, ensuring seamless communication for security teams, facility managers, and staff. Whether it’s a coordinated lockdown in a school, real-time alerts in a hospital, or mission-critical communication in an industrial facility, Aerowave’s BDA/DAS solutions keep teams connected when it matters most.

Michael Hoffman - Director of Safety & Security, Keller ISD

“Aerowave installed a BDA at one of our schools. We actually made a change from our normal vendor to Aerowave because they were considerably more responsive. In the end, Aerowave was not only more responsive but we received better customer service and a better price. We have been pleased with the change to the point we now only utilize Aerowave for our radio system needs.”

Aerowave’s BDA/DAS Services

  • BDA Grid Tests

    Identify your buildings ERRC radio dead spots and ensure you will receive your Certificate of Occupancy (“COI”).

  • First Responder ("ERRC") BDA/DAS

    Aerowave ensures first responder radio coverage in every portion of your facility, allowing police and fire to respond in an emergency.

  • Cellular ("LTE") BDA/DAS

    Allow your people to stay connected with LTE coverage throughout your building, improving productivity and safety.