Distributed Antenna Systems (DAS)

Motorola Solutions Center of Excellence

Distributed Antenna Systems (DAS)

Now and for the future protecting both the Public and First Responders

Indoor coverage has always been a problem and is getting worse. Building are more dense and made with steel interiors. Data networks are much more demanding than analog. End-users are more demanding and expect excellence.

An estimated 80% of all wireless calls originate or terminate inside buildings! More and more people demand that their handheld radio or cell phone works everywhere!

Have you ever walked into a building and noticed you have “no bars” on your cell phone? Radio and Cellular signals are greatly reduced when passed through dense building materials such as concrete and metal. During 9/11, this problem was prevalent in the World Trade Center towers when first responders were not able to effectively communicate inside. Since 2009, the International Code Council and the National Fire Protection Association have added first responder radio coverage requirements to their book of fire codes.  Currently, this is NFPA-1221. Many states and municipalities have begun enforcing these codes.

The Motorola Solutions DAS Center of Excellence takes these issues seriously. We offer “turn-key” solutions that provide Design, Engineering, Supply, Implementation, and Commissioning of Indoor Enhancement products. Motorola can provide solutions for private repeaters, SMR trunking, P-25 Public Safety, and any or all of the cellular carriers.

Indoor enhancement systems come in a two basic designs:
Passive DAS – Coax used to distribute RF signals
  • Only active component – BDA/Repeater
  • Ideal solution for smaller venues <150K sq/ft
  • Limited growth or expansion capability
Active DAS – Adds RF conversion, fiber, and distributed amplifiers
  • Scalable – Single to multi-band/operator installations
  • Cost effective multi carrier coverage over 150,000 sq/ft
  • Flexible for growth and expansion
  • One system for both Cellular Carriers and 700/800/900 Public Safety

* Designs that requires compliance to the NFPA-1221 codes for Public Safety becomes very stringent in the equipment and installation processes as the equipment must meet certain survivability requirements.

Contact us for more information.