Distributed Antenna Systems
Enhance your coverage indoors for more reliable communication in hard to reach areas.
Properly designed and deployed Distributed Antenna Systems (DAS) can improve wireless communication inside buildings without interfering with signals outside.
What is a Distributed Antenna System?
Distributed Antenna Systems (DAS) are installed in buildings to amplify radio signals. They help provide reliable communication for first responders who perform life saving duties. Sometimes a public safety DAS is called an ERRCS (Emergency Responder Radio Communication System).
Improve radio communications
Boost the signal indoors for communication reliability of any two-way radio system in any frequency band - public safety or private enterprise.
Comply with local mandates
Local jurisdictions may require adequate in-building coverage for public safety two-way radio systems before a building can be occupied.
Lower total cost of ownership
A properly designed DAS can support multiple two-way radio systems, both public safety and private.
Trusted experts in Distributed Antenna Systems
Engineered
designs
We custom design each DAS specifically for your building using floor plans, data sheets and data information from our on-site surveys.
Best-in-class
components
From bi-diectional amplifiers to transmission line to antennas, industry leading components help ensure reliable service over extended periods.
Installation and commissioning
Our certified team will install, test and verify the system for code compliance and ensure no interference with communication outside the building.
Lifecycle
services
Ensuring the DAS continues to perform optimally long after the system is installed with on-site response, repair, replacement and maintenance.
Monitoring
Once your DAS is installed and commissioned, we ensure 24 hour visibility by offering remote monitoring services.
Resources
Sarasota County Schools
Discover how Motorola Solutions technology is extending radio coverage into Sarasota County schools.
DAS FAQs
Comprehensive answers to common questions about DAS systems.
Distributed antenna systems are installed in buildings to amplify radio signals for more reliable communication. Through a network of strategically placed antennas and other components, a DAS amplifies and distributes radio signals throughout a desired area.
The system works by pulling the signal from an external macro network with an exterior antenna into a bidirectional amplifier. The BDA is a signal-boosting device that amplifies incoming and outgoing signals to guarantee clear, dependable two-way communications.
Coaxial cabling carries the amplified signal throughout the facility to indoor antennas to provide reliable in-building communication.
DAS solutions can be designed to enhance both land mobile radio and cellular services within a building.
The cost of a DAS System varies depending on the scope of the project. Project estimates include a site survey, designing the system and cost of the hardware and installation.
To discuss how much a DAS System would cost for your building.
There are two main types of distributed antenna systems (DAS):
Passive DAS: A bi-directional amplifier (BDA) boosts the radio frequency (RF) signal, which a coaxial cable carries to ceiling antennas via unpowered splitters, couplers and attenuators. No active power or electronics are required between the BDA and antennas.
Active DAS: Converts RF signals into optical light to transmit across long distances via fiber-optic or Ethernet cabling. Powered remote radio units convert light back to RF for antennas, requiring dedicated power. This setup is ideal for large enterprises, campuses and stadiums.
Distributed Antenna Systems (DAS) penetrate walls and low-E glass to boost radio signals inside facilities, providing reliable in-building communications for life safety and business operations. They guarantee code compliance, extend coverage for first responders, eliminate dead zones, reduce dropped calls and maintain high-speed connectivity.
Motorola Solutions provides end-to-end distributed antenna system and bidirectional amplifier equipment, design, installation and post-acceptance maintenance.
Distributed Antenna Systems (DAS) are installed across various building types where structural materials, such as low-E glass, concrete or geographic obstacles, block wireless signals.
DAS is essential where mission-critical communications are required at all times, such as public safety and emergency response, high-rise commercial real estate, healthcare facilities, stadiums and entertainment venues, transportation hubs, manufacturing, warehousing and higher education campuses.
Enhanced cellular services within buildings can improve business operations or simply ensure employees and visitors have mobile phone service.
Installation timelines vary depending on building size, layout and system complexity, following a five-step process. It begins with custom design using site walks, signal measurements and propagation studies to map ideal antenna placement without causing RF interference.
Technicians select best-in-class components, then complete installation and commissioning to verify code compliance and secure a certificate of occupancy.
Once the DAS is active, vendors like Motorola Solutions can offer remote monitoring and maintenance. Remote monitoring of the system will alert the Motorola Solutions service team of any equipment alarms that the active DAS triggers.