BDA Systems

What is a Bi-Directional Amplifier (BDA) System?

A Bi-Directional (BDA) System, or Emergency Radio Responder System (ERRS), ensure that buildings provide radio signal reception throughout their entire structures, including basements, stairwells, and “dead” areas that may be critical to first responders during a public emergency. A BDA System is also frequently referred to as a Distributed Antenna System (DAS).

Emergency Radio Communication Enhancement Systems (ERCES) were first introduced in the 2009 International Building Code. The ERCES requirement was established to address the performance of emergency responders’ portable radios inside buildings because building construction, building size, construction features, and other elements can absorb or block radio communications. If a building does not meet the required signal strength (-95dBm), the only effective solution is the installation of a signal booster called a Bi-Directional Amplifier (BDA) system.

This diagram illustrates the basic functionality that a BDS system (ERRS) provides to a structure that has “dead” or weak radio reception areas.

BDA Systems (ERRS) by Optimum Fire and Security

Optimum Fire & Security - a Certified & Licensed BDA Systems Provider

Today’s codes, like the IBC 2015 Section 916, IFC 2018 Section 510, NFPA 72 2010, NFPA 1221 2016, and UL2524, require all buildings to have approved radio coverage for emergency responders within the building, based on the existing coverage levels of the public safety communication systems of the jurisdiction, at the exterior of the building.

In order to install a public safety BDA (Bi-Directional Amplifier) system, the installation company must possess a GROL (General Radio Operator License from the FCC) and manufacturer training for the system being installed. Optimum Fire & Security maintains both prerequisites required to perform the RF surveys and installations of BDA systems.


BDA System Services from Optimum Fire & Security

BDA Systems (ERRS) by Optimum Fire and Security

We Offer Optimum Protection & Compliance Services:

  • Site Surveys
  • Design
  • Installation
  • Inspections
  • Maintenance & Service
  • Project Management
  • Post-Installation Analysis
  • Testing and Certification

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