BDA (Bi-Directional Antenna) Systems
We design, install, test, and maintain Bi-Directional Antenna systems that help first responders communicate clearly throughout your property when it matters most.
Coverage Survey & System Design
We evaluate signal strength throughout the property, identify weak coverage areas, and design a BDA/DAS solution that supports code requirements, building conditions, and first responder radio use.
Code-Ready Installation
Our technicians install donor antennas, amplifiers, cable runs, splitters, and in-building antennas with careful coordination around property access, inspections, and AHJ expectations.
Testing, Service & Maintenance
We help keep BDA systems reliable with acceptance testing support, annual inspections, troubleshooting, repairs, battery checks, and upgrades as property needs or local requirements change.
Request a BDA evaluation
Need first responder radio coverage for a property? Tell us about the building, inspection need, or coverage issue and we’ll help you plan the next step.
BDA systems for real properties
From high-rise buildings and parking garages to schools, medical facilities, hotels, warehouses, and commercial campuses, BDA systems help solve the areas where radio signals drop out. Alarm & Electronics works with property owners, managers, contractors, and local authorities to plan practical coverage solutions that support emergency response communication throughout the building.
Upgrades, troubleshooting, and compliance support
If your property has failed a radio coverage test, has an aging amplifier, or needs documentation for inspection, we can help evaluate the system and recommend the right next step. Our team can service existing BDA equipment, replace failing components, improve antenna layouts, and prepare the system for dependable long-term operation.