Modern building materials — reinforced concrete, steel framing, and energy-efficient glazing — block radio frequency signals. A BDA system addresses this by using external antennas to capture signal from outside the building and an internal Distributed Antenna System (DAS) to redistribute that signal throughout the interior. BDAs are required by fire and building codes in many U.S. jurisdictions for new commercial construction and significant renovations, ensuring that radio communications function throughout the building. Beyond regulatory compliance, enterprise organizations use BDAs to ensure their own two-way radio operations function reliably across their entire facility — not just near windows or building perimeters.
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