Bi-Directional Amplifier Systems

Critical Comms for First Responders

We design and certify Public Safety DAS (Distributed Antenna Systems) that eliminate dead zones and ensure your building meets code for emergency radio coverage.

Reliable Communication for First Responders

Thick concrete, Low-E glass, and underground parking structures are great for efficiency but terrible for radio frequency (RF) signals. If police and fire radios go silent inside your building, you face a major safety liability—and you likely won't receive your Certificate of Occupancy. DSC navigates the complexity of RF engineering to deliver BDA solutions that satisfy the Fire Marshal and ensure clear communication when it matters most.

DSC also offers Cellular DAS as an add-on to your public safety BDA system — using the same installed infrastructure to extend carrier cell signal throughout your building for occupants, staff, and visitors. If you're already investing in first responder coverage, it's a practical next step toward making your building fully connected.

fire wire in ceiling on commercial job site

New Construction

The "CO" Requirement

In many jurisdictions, passing a radio coverage test is now mandatory before a building can open. We work with General Contractors during the rough-in phase to install the necessary conduit and infrastructure, preventing costly retrofits and schedule delays at the end of the project.

engineer creates plans for fire safety design in a building

High-Rise & Dense Structures

Penetrating Concrete & Glass

Modern energy-efficient buildings effectively block RF signals. We design Distributed Antenna Systems (DAS) that bypass these barriers, piping clear signals into stairwells, elevator lobbies, and core areas where first responders stage their operations.

Subterranean Levels

Basements & Parking Garages

Underground levels are notorious for radio silence. We deploy specialized antennas to flood these below-grade areas with signal, ensuring that EMS and Police maintain connectivity even in the deepest parts of your facility.

Donor Antennas

Capturing the Network

It starts on the roof. We install high-gain directional antennas aligned specifically with the nearest public safety radio towers. Our technicians use spectrum analyzers to tune these antennas precisely, ensuring we capture a clean signal from the emergency network without introducing noise or interference.

The BDA Unit

Matched to Your Panel

The head end arrives from the manufacturer as a pre-enclosed unit, ready for installation. We match the amplifier to the fire alarm system it serves—a Farenhyt BDA with a Farenhyt panel, Edwards with Edwards. Code does not require it, but keeping one manufacturer across both systems keeps parts, service, and support on a single path.

The DAS Network

Internal Coverage

Once the signal is boosted, it must be distributed. We install a network of coaxial cable, splitters, and low-profile indoor antennas disguised to blend into your ceiling. This "Distributed Antenna System" (DAS) ensures that a firefighter in the stairwell has the same radio strength as one standing on the street.

The Cellular Layer

Converged Coverage

Your public safety BDA handles first responder radio — but the cabling, conduit, and antennas already in place can do more. DSC adds a Cellular DAS layer to your BDA infrastructure, distributing AT&T, Verizon, T-Mobile, and other carrier signals throughout the building without a separate installation. Whether you're building new or upgrading an existing system, the cellular layer integrates into your current BDA backbone

Compliance & Testing

BDA systems are strictly regulated by the FCC. An improperly calibrated booster can crash an entire city's public safety radio network. We ensure that never happens.

A Trusted Partner for Life Safety and Security.

For more than four decades, DSC has supported contractors, property managers, and facility leaders across Texas with dependable fire and security systems. Founded in Houston in 1978, our reputation is built on certified expertise, reliable performance, and long-term relationships.

Established Experience – Serving commercial and industrial facilities since 1978.
Certified Expertise – Certified, licensed, and factory-trained professionals.
End-to-End Support – Design, installation, inspections, monitoring, and service.
Trusted Relationships – Proven partnerships with contractors, manufacturers, and end users.

Pass Your Inspection on the First Try.

Don't let a failed radio test hold up your Certificate of Occupancy. Trust DSC to engineer a BDA solution that meets code, respects your budget, and keeps first responders connected.

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