Ensure Safety & Compliance with a

Bi-Directional Amplifier (BDA) System 

Secure Your Building's Future 

A Bi-Directional Amplifier (BDA) is an Emergency Responder Communication Enhancement System (ERCES), allowing first responders to communicate with one another in buildings where signal would be blocked otherwise. As code requirements and city skylines change, many property owners now need a BDA system, whether they know it or not.  


Working on a new project or own an existing building? CSE Technologies can help you diagnose your BDA needs, get up to code, and keep your tenants safe.  

When every second counts, will you be prepared?

Getting your BDA is Easy

01. On-site Testing

Our in-house, NICET-certified technicians test ERCES coverage throughout your entire property to find where signals are weak.  

02. Design & Installation

We install a custom design that accounts for your building's unique architecture and ensures 100% signal coverage. 

03. Continued Maintenance

Our service experts conduct yearly inspections, similar to fire alarm, to ensure strong ERCES compliance for years to come.  

What is a Bi-directional Amplifier (BDA) System?

Everything you Need to Know:

It’s every property owner’s worst fear: an emergency in the building. Firefighters and paramedics are navigating the halls to keep everyone safe. Thankfully, the building has a Bi-Directional Amplifier keeping emergency radio response channels clear and open. The rescue effort is coordinated, and everyone is evacuated safely.   

During critical moments when every second counts, will you be prepared? A Bi-Directional Amplifier (BDA) keeps your patrons safe, gives you peace of mind, and gives first responders every advantage in an emergency.  

BDA Basics

It’s every property owner’s worst fear: an emergency in the building. Firefighters and paramedics are navigating the halls to keep everyone safe. Thankfully, the building has a Bi-Directional Amplifier keeping emergency radio response channels clear and open. The rescue effort is coordinated, and everyone is evacuated safely.   

During critical moments when every second counts, will you be prepared? A Bi-Directional Amplifier (BDA) keeps your patrons safe, gives you peace of mind, and gives first responders every advantage in an emergency.  

Code Compliance

A BDA System is a Life Safety System. Similar to fire alarm, BDA is a code driven requirement. The BDA system must be monitored by the building’s fire alarm system and annunciate the status of any signal booster(s). The monitoring panel shall provide visual and labeled indication of the following for each signal booster:  

›  Normal AC power

›  Signal booster trouble

›  Loss of normal AC power

›  Failure of battery charger

›  Low-battery capacity

›  Donor antenna trouble

NFPA, IFC, and IBC includes requirements for the installation, performance, and strength of Emergency Radio Communication Enhancement Systems (ERCES) for commercial facilities.  

›  The International Fire Code (IFC - Section 510)

›  NFPA 1221 (2016 Edition), NFPA 72 (2013, 2010 Edition)

›  IBC Section 916 (2015 Edition), IBC Section 915 (2012 Edition)

Within these codes, criteria for Emergency Radio Communication Enhancement Systems address In- building protection for first responders, emergency personnel and the public, and enforce public safety grade qualifiers for the installation and installer. As local jurisdictions continue to adopt these codes, buildings will need to meet the signal strength required by the Authority Having Jurisdiction (AHJ).

BDA and FIBER DAS SYSTEM with NOTIFIER by Honeywell

Specifically designed to meet NFPA and IBC/IFC code compliance with UL2524 2nd Edition listing, our BDA and Fiber DAS solution enhances two-way radio signal strength inside buildings, tunnels and other structures. NOTIFIER BDA and Fiber DAS Solutions offer Digital Class A/B, low to high power (0.5W to 5W) radio signal booster system that can be designed and customized to meet all public safety frequency band ranges -VHF, UHF, 700 MHz, 800 MHz and FirstNet Band 14 support with Single/Dual Band. This state of the art BDA and Fiber DAS System is developed to provide best amplification and coverage performance, but at the same time support reliability of the radio network with no noise. 


  • Single portfolio, offering all components required, to meet any single or multi- building application across US supporting all public safety frequency bands 
  • IFC, IBC and NFPA compliant, FCC certified 
  • UL2524 2nd Edition listing for In-building 2-Way Emergency Radio Communication Enhancement Systems  
  • Channel Selective, software programmable or adjustable bandwidths. Platform wide Downlink Automatic Gain Control (AGC) per channel and time slot 
  • Built-In NOTIFIER addressable monitor module for direct integration to NOTIFIER Fire Alarm Panel for monitoring BDA and Fiber DAS Master / Remote. Dedicated annunciator options with built-in annunciator in BBU (Battery Backup Unit) and remote annunciator  
  • No noise, oscillation prevention and monitoring with programmable performance mitigation actions and automatic uplink power amplifier auto off support for safe operation and non-interference with public safety radio system  
  • Address any application, any jurisdiction with lower total cost of ownership  

The Single-Source Solution 

With the ability to design & install fire alarm, security, access-control, and bi-directional amplifier systems, CSE Technologies is your single-source solution for low-voltage infrastructure. Whether you’re planning your project, undergoing construction, or have an existing building, our special systems experts can equip you with everything you need to boost safety and stay up to code on your property.  

With experience installing and maintaining ERCES since 2019, we are not just a provider; we are partners on your journey to enhanced building safety. 

The Most Trusted Name in BDA Systems 

CSE Technologies exclusively provides BDA digital signal boosters, annunciators, and battery backup units from NOTIFIER by Honeywell, the leading manufacturer of reliable BDA solutions. NOTIFIER’s BDA systems enhance two-way signal strength inside buildings, tunnels, and the most challenging of RF environments.  

Systems of Any Size

ASPIRE PARK CENTRAL
ARIZONA BILTMORE GOLF CLUB
ACOYA SHEA SENIOR LIVING

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