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Bi-Directional Amplifier (BDA)


Reliable Emergency Communication—Where It Matters Most

Reliable communication is critical during an emergency—but inside many buildings, radio signals don’t always reach where they’re needed.

BDA (Bi-Directional Amplifier) and ERCES (Emergency Responder Communication Enhancement Systems) are designed to support clear, consistent communication for fire, police, and EMS personnel throughout a building—even in areas where signal would otherwise drop off. 

As codes continue to evolve, these systems are becoming a standard requirement across a wide range of property types.

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Why It Matters:

Construction materials, building size, and location can all impact radio signal strength, creating gaps that can disrupt emergency communication.

BDA/ERCES systems help address these challenges by:

  • Supporting reliable in-building radio coverage
  • Helps meet applicable fire and safety code requirements
  • Reducing risk during inspections and occupancy approvals

A Code-Driven Requirement

Across many jurisdictions, in-building emergency communication is no longer optional.

Codes such as IFC and NFPA standards outline minimum expectations for radio coverage, with enforcement increasing across both new and existing buildings. 

In many cases:

  • Buildings are evaluated for signal strength
  • Gaps in coverage must be addressed
  • Systems may be required to achieve compliance
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Where These Systems Are Used:

BDA solutions are commonly implemented in buildings where signal challenges are more likely, including:

  • Commercial and office environments
  • Residential and mixed-use developments
  • Industrial and warehouse facilities
  • Healthcare, education, and hospitality

Project requirements vary depending on building size, construction type, and local authority expectations.
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WHAT OUR CLIENTS ARE SAYING

Since August of 2014, ACT has delivered a variety of new self-storage property installations for our organization. They provide us with exceptional customer service experiences. Most importantly, their vast knowledge of the self-storage industry directly helps us to make informed decisions on appropriate technologies to invest in to support our client’s current and future growth objectives.
Nicci Dillon
Nicci DillonRegional Manager Liberty Investment Properties
We have worked with Scott and his team for over 25 years, during this period, my staff and I have always been treated professionally and attentively. ACT has always delivered our projects on-time and on-budget. I would wholeheartedly recommend Scott and the entire Access Control Technologies team to any commercial business owner or operator. Their ongoing customer service after the initial sale is what keeps me going back to Scott and his team at ACT.
David Dixon
David DixonChief Operating Officer Universal Storage Group
I highly recommend Access Control Technologies for quality design and installation services of commercial building access control solutions. ACT has provided us with outstanding customer service, they pride themselves on quality communication, and they share the same interest in establishing long-lasting working relationships in the same manner as we strive to do here at Liberty Investment Properties.
Jennifer Bollhofer
Jennifer BollhoferAsset Manager Liberty Investment Properties
Having an access control business partner who understands your goals and works with you to make those goals a reality is invaluable. We look to Access Control Technologies when it comes to adding new technology, servicing our stores’ current systems, and of course, keeping up with the latest trends in our unique industry. We gladly endorse the use and services provided by the Access Control Technologies team.
Anne Ballard
Anne BallardPresident Marketing, Training & Development Universal Storage Group

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