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DAS and BDA Systems

Lack of Mobile Communications Within a Building

Dropped cell phone calls, connectivity dead zones and unreliable radio range are the tell-tale symptoms of a lack of mobile communications within a building.


The issue isn’t just inconvenient for cell phone and two-way radio users for businesses hospitals and campuses, it can affect life-saving communication to first responders and public safety.


It’s enough of an issue that many jurisdictions are setting standards for connectivity, requiring NFP or IFC-compliant public safety and emergency responder coverage as a prerequisite for getting a building occupancy permit.


Lack of mobile communications is more common in certain types of structures or areas, such as:                           

  • Large, older buildings made of reinforced steel or concrete
  • Tunnels, stairways or garages
  • Arenas or airports
  • Secluded, rural or hilly areas
  • Any combination of the above
DAS Better Coverage

Better Coverage

A Distributed Antenna System (DAS) that eliminates dead spots and poor coverage areas.


A distributed antenna system is a network of indoor and outdoor antennas that, along with bi-directional amplifiers, amplifies the strength of radio and commercial carrier signals and frequencies for more reliable in-building communications coverage.

A DAS works by picking up the wireless signals and frequencies and redistributing them to dead zones and hard-to-reach spots.


A distributed antenna system is made up of a few hard-working components:

  • Indoor and outdoor antennas
  • Coaxial or fiber cabling
  • Hybrid couplers
  • Bi-directional amplifiers (BDAs)


As the name suggests, the driver of the DAS is the “distributed antenna system network,” a series of cabling placed throughout a building. The cabling has splitters that divert sections of the distributed antenna system to the areas that are experiencing connectivity issues.       


A typical DAS can effectively boost coverage in 85 to 90 percent of a building or facility, and 100 percent coverage can be achieved at a greater cost.


A DAS ensures that a building or facility is NFPA or IFC compliant and provides dependable communication coverage for first responders when they need it most.


What makes us different...

Our Engineering and Design Qualifications

Chicago Communications doesn’t believe in one-size-fits-all solutions. We create custom turn-key systems for clients designed to address their specific connectivity needs. With our distributed antenna systems, each individual part is professionally engineered and often custom-built.


Our secret to success is a thorough research and custom development process. Our expert team carefully analyzes current radio or commercial carrier systems for each client, including the bands and frequencies, as well as the area of coverage desired. We find a bi-directional amplifier that matches current requirements, then design a DAS to distribute these signals.


We customize each aspect of these dynamic systems to ensure the best quality of RF coverage and the seamless integration of each new system. Our solutions have a proven track record of improving connectivity in areas that have compromised radio or carrier signal coverage for clients large and small, from small retail businesses, to public safety agencies, to large hospital campuses.

Our Depth of Experience

Chicago Communications has designed more than 1,000 DAS solutions for clients ranging from public safety to cellular carriers. Our tailored systems deliver the data, voice calls and information that are critical to our clients’ operations.

Our DAS and BDA solutions:


  • Improve cellular and two-way radio communications within buildings
  • Ensure dependable communication coverage for first responders
  • Enhance business’ productivity
  • Increase value to tenants through enhanced mobile coverage
  • Address all cellular carriers within a building
DAS Service Tech.jpg

Our relationship with clients doesn’t end with installation, and we pride ourselves on being a long-term partner, not just a provider.


Should a problem arise with a DAS solution, or if maintenance is needed, Chicago Communications will have a qualified and professional service provider available to respond.  


We have 20 union technicians and installers with an average tenure of 15 years. Our dedicated technical staff operates 24 hours a day, 365 days a year so that we’re here when clients need us.

Our Customers Say...

When we tried the Motorola TLK 100 radios, they sounded loud and clear and
worked everywhere. We were impressed with the solution and service provided
by Chicago Communications.

Doug Smith, President, Smith Ready Mix

I would recommend Chicago Communications to any business or public safety
agency. We keep coming back because we’re happy.

Delores Temes, Director , Addison Consolidated Dispatch Center

Chicago Communications has proven over nearly two decades to provide a continual

high level of service, sales, and support for our mission critical needs in the ECC

and the agencies we serve.

Jason Kern, Executive Director, Southeast Emergency Communications (SEECOM)

Our Partners

Avetta Member
WBE Certification
Motorola Solutions Channel Partner
Certified Service Center
Safety-Reimagined-Badge Rev

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