Emergency Responder Communication Enhancement Systems (ERCES)

Eliminate Communication Deadzones

In emergency situations, reliable in-building communication is crucial for first responders to maintain uninterrupted radio and cell phone coverage. Empower first responders with timely, code-compliant radio coverage through our cutting-edge ERCES solutions.

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Code Compliant

Why Sciens?

With FCC-licensed engineers, Sciens offers industry-specific guidance on regulations for ERCES system design, testing, installation, and maintenance, including the required annual certifications. Our streamlined processes ensure compliance with local, state, and national requirements, guaranteeing the effectiveness of your ERCES system.

We’ve got you covered

With tools like Bi-Directional Amplifiers (BDA) and Fiber DAS, Sciens’ ERCES solutions ensure reliable in-building radio signals for first responders, overcoming obstacles like concrete and metal. This guarantees the essential code-required radio frequency coverage for the safety and connectivity of first responders in critical situations.

How it works

Key Features

We offer comprehensive service encompassing the design, installation, and maintenance of your ERCES, aiming to ensure complete, code-compliant communication coverage throughout your building or complex.


Building walkthrough, survey and testing.


Floor plan, system recommendations, and scope.


Code-compliant installation and testing.


Annual inspection, maintenance, and updates.

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Frequently asked questions

Explore tailored emergency communication solutions with Sciens. Our FAQ section provides insights into ERCES, helping you make informed decisions. For custom solutions, contact us – we’re here to ensure your safety needs are met.

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Simply put, an ERCES system provides reliable two-way communication coverage for emergency responders in a building or structure during an emergency. The ERCES boosts radio frequencies using radio repeaters and/or bi-directional amplifiers (BDA). The radio frequencies of emergency services from outside a building are re-transmitted inside the building via a distributed antenna system (DAS). This ensures reliable two-way communications between firefighters, police and emergency medical personnel throughout the entire location of an emergency – in-building, outside the building, on the roof, and at the dispatch or command center. 

Today, ERCES systems are required for all new construction and most existing commercial buildings and are included in the International Fire Code (IFC) Section 510 and the National Fire Protection Agency (NFPA) and are enforced by the Authority Having Jurisdiction (AHJ). They also adhere to the UL 2524 communication standard.

Sciens installs and maintains all the hardware required for an ERCES. This includes, but isn’t limited to, the following:

  • Repeaters
  • Transmitters
  • Receivers
  • Signal boosters
  • Distributed antenna system
  • Cell booster
  • Power dividers/couplers
  • Bi-directional amplifier
  • Annunciators
  • Operational control panels 
  • Power supply and back-up battery systems

The Sciens team completes a thorough walkthrough of your building(s) to evaluate the existing RF coverage in all critical areas and the general area overall. Using the RF Grid Testing method, as recommended by the NFPA and IFC, we provide a pass/fail report by channel and grid. This report determines if an ERCES is needed or requires updating.

If you have a newly constructed building, you’re required by local, state, and federal laws to have an ERCES in place. But consider that the purpose of an ERCES is to save lives. In a crisis, emergency responders are entering a dangerous environment they’ve never been in before. Reliable two-way communication is vital to their ability to perform their jobs in a hectic, confusing, potentially deadly situation.

Properly installed and maintained, an ERCES is 100% reliable. An ERCES boosts and re-transmits existing radio communications from first responders.

Almost any structural material can impair or block radio communications, including RF interference, below ground areas of a structure, and obstructions like elevator shafts and stairwells. And the advancements and modernization in architecture and construction have further contributed to the challenges of maintaining two-way communications during an emergency, such as low emissivity (Low E) glass, metal doors and walls, and even foliage can weaken or block RF signals. This increases the need for every building to have an ERCES installed.

An ERCES comes with a code-required panel that displays status and potential trouble conditions, such as a low battery or issues with the signal booster. Should a building lose power during an emergency, a battery charging system provides backup power. 

No. ERCESs are designed to work with existing emergency radio communication systems and simply boost whatever radio signals are transmitted. All emergency personnel can use their current handheld devices and equipment, ensuring seamless operation with our ERCES system. 

All new buildings require an ERCES, while existing buildings have varying timelines for compliance. Sciens has the expertise to guide you through the rules and regulations that apply to your industry and facility. 

We ensure that our designs and installations meet all local, state and national requirements, so that your systems are effective and compliant.

Our service begins with a comprehensive, top-to-bottom review of your space, including testing for all critical areas for public safety. Our surveys use the RF Grid Testing method as recommended by the NFPA and IFC. Based upon the survey results, we create a recommendation for an ERCES that is code-compliant, ensures uninterrupted communications and eliminates dead zones for first responders during an emergency event. 

During 9/11, first responders were unable to properly communicate inside the World Trade Center. This tragedy led to the creation of Emergency Responder Communication Enhancement Systems.  Installing an ERCES is a crucial responsibility of a business or building owner, commercial real estate developer, or facility manager to provide as safe an environment as possible during an emergency event. 

Sciens is a trusted provider of fire protection, security, communications, and electrical solutions with thousands of systems installed and decades of experience. From small structures to massive high rises, our integrated emergency responder systems provide safe, compliant solutions. Our services and products include ERCES systems as well as data & sound communications, security systems, fire and life safety systems, and more.