FIRE PROTECTION
Bi-Directional Amplifier (BDA)
In-Building Two-Way Communication
During an emergency, clear radio transmissions are critical. Reliable communication between first responders inside a building as well as emergency personnel outside the building is a necessity. Because of this, Emergency Radio Communication Enhancement Systems (ERCES) were first introduced in the 2009 International Building Code. The implementation of the ERCES requirement was initiated to address the performance issues faced by emergency responders’ portable radios when used inside buildings because building construction, building size, construction features, and other elements can absorb or block radio communications. Additionally, 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.
Frequently Asked Questions
What is a BDA / DAS?
Equally the same, a Bi-Directional Amplifier (BDA) and a Distributed Antenna System (DAS) are 2-way radio signal boosters that play a crucial role. The reason they are so important is because of their purpose, to enhance the communication equipment of first responders inside structures where regular communication may face challenges and struggle to operate effectively without the assistance of amplification.
How often do I need a BDA / DAS inspection?
Because BDA / DAS systems are crucial to first responder communication, a licensed Silco technicians will perform inspections on existing BDA and DAS systems annually to ensure compliance and proper functioning.
How often do I need to have a survey performed to determine the need for a BDA or DAS system?
During new construction or building modifications, local authorities may require a survey to determine if a BDA or DAS system is necessary.
Does my building need a BDA or DAS?
Conducting a comprehensive site survey, including a radio strength survey, on your building or property is essential to determine whether a BDA or DAS system is necessary.
BDA & DAS Systems.
How Do They Work?
BDA & DAS Systems Explained
If you’ve ever wondered about the purpose and function of a BDA or DAS system, this video elaborates on their significance, detailing why having one installed in your building is essential and when you might need one.
