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BDA is an acronym for Bi-Directional Amplifier, also known as ERRCS (Emergency Responder Radio Communication System), DAS (Distributed Antenna System).
A BDA system is a signal booster that takes First Responder radio signals from the transmission tower via an antenna on the roof of a building and augments the weak signal areas in buildings. This allows all responders to maintain communication with their team and central dispatch during an Emergency situation.
The short answer is NO! However, BDA Requirements revolve around NFPA Codes that have signal strength requirements. It is necessary to have a Signal Strength Survey preformed by a FCC Licensed Technician to determine if the property will require a system to be installed.
Signal Strength Surveys are required to be completed after the "Dry-In" of a building has been completed to determine is a system will be required. (it is always recommended to install pathways to support the cabling infrastructure for a BDA system during construction to mitigate some of the cost should a system be necessary).
Yes! it is possible to estimate the overall cost of a system install and engineer antenna placement based on the plans and proposed construction materials being used. (We feel it is always prudent/cost effective to budget for a system. If it is deemed not needed, the infrastructure is in place to future proof the property from expensive retrofits in the future).