# Public Safety

BDA/DAS Solutions Public Safety In-Building Safety Communications

Bi-Directional Amplifiers (BDA) and Distributed Antenna Systems (DAS) are crucial to extend coverage and range for first responder communications during critical emergencies. Eliminating dead spots for cellular and radio communication is paramount in these situations. 

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First responder communications call for signal boosting BDA-DAS solutions.

If a building's floors fail to have a strong enough radio signal for first responder communication during emergencies Bi-Directional Amplifiers (BDA) and Distributed Antenna Systems (DAS) are required to enhance wireless signal coverage.


We collaborate with fire marshals, general contractors, and other stakeholders to deploy BDA-DAS signal boosters that comply with local NC codes and guarantee successful radio signals and building inspections.

Benefits of Public Safety BDA/DAS Solutions

A Public Safety BDA/DAS in your facility helps ensure that first responders remain in contact with each other during an emergency

Boosting In-Building Radio Signals

In the world of emergency response, maintaining effective communication is paramount. However, the challenge arises when in-building radio signals are obstructed by structures like concrete, windows, and metal. This is where the Bi-Directional Amplifier (BDA) System, also referred to as the Distributed Antenna System (DAS) in certain markets, comes into play. This ingenious solution is designed to bolster in-building radio frequency (RF) signal coverage for public safety radios. Let's delve deeper into the significance and applications of BDA Systems.

Conducting In-Building Surveys

As an integral component of a comprehensive solution, the BDA/DAS ERRCS is designed to receive external Public Safety radio signals and retransmit them within the building. This ensures signal penetration across all areas, encompassing spaces like stairwells, elevators, basements, and heavily shielded regions.

Understanding BDA Systems

The Bi-Directional Amplifier (BDA) System serves as a crucial tool to counteract the signal loss caused by structural barriers within buildings. Often known as the Distributed Antenna System (DAS) in specific markets, this technology is engineered to amplify radio signals, ensuring robust coverage for emergency responders. BDA Systems are particularly instrumental in adhering to both local and Emergency Responder Radio Coverage (ERRC) codes.

Implementing BDA Solutions

For numerous buildings striving to meet these stringent code prerequisites and eliminate communication dead zones, the installation of bi-directional amplifiers emerges as a practical solution. Our accredited alarm system installation company, equipped with factory-certified experts, specializes in installing these life-saving technologies. Discover more about the significance of this technology and whether your building necessitates its integration.

Who Benefits from BDA Systems?

A noteworthy development is the recent changes in codes that mandate all new buildings to achieve a minimum signal strength level (-95 dBm) for fire, police, and EMS radio signals. Compliance requires signal levels to be assessed and recorded within designated zone sizes on each floor by an FCC licensed and factory-certified professional.

These measurements must then be documented and submitted for approval to the AHJ (Authority Having Jurisdiction). In cases where any floor falls below the minimum signal threshold, the installation of a BDA system (also known as ERCES) becomes mandatory. These systems can exclusively be implemented by installers licensed by the FCC, such as Maximum Fire and Security.

Furthermore, the code stipulates that these systems undergo annual re-inspections or when significant renovations take place within the building. Emergency Radio Communication Enhancement Systems (ERCES), or BDAs, were initially introduced in the 2009 International Building Code. Contemporary codes, including IBC 2015 Section 916 and the 2018 International Fire Code (ICC IFC-2018) Section 510, NFPA 72 2010, NFPA 1221 2016, and UL2524, now demand that all new constructions provide approved radio coverage for emergency responders within the premises.

For instance, in North Carolina, Section 510 of the 2018 N.C. Fire Prevention Code necessitates a final signal strength assessment for Emergency Responder Radio Coverage in all new construction projects. The role of ERCES (BDAs) is pivotal in ensuring comprehensive radio signal reception throughout the building, encompassing crucial areas like basements, stairwells, and other critical zones. This unimpeded communication network is essential for the effective coordination of first responders during emergencies.

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