What Is a Distributed Antenna System (DAS), and Should You Get One?

Distributed antenna system

A distributed antenna system (DAS) uses multiple antennas for wireless coverage. This system boosts wireless coverage in areas where there is little or no signal. It also amplifies radio signals, playing a key role in emergency communications. 

Getting a DAS for your facility may prove to be a wise investment. To help you understand why, we’re answering some of the biggest questions surrounding distributed antenna systems and why you should get one. 

What Is a Distributed Antenna System Exactly?

A distributed antenna system is made up of several antennas linked to one source. These provide wireless services to various facilities, such as:

  • Airports
  • Businesses
  • Hospitals
  • Hotels
  • Schools

Meanwhile, a DAS gives you access to a wide range of wireless services, including:

  • Cellular
  • Emergency services
  • PCS
  • Wi-Fi

How Does a Distributed Antenna System Work?

Generally, an antenna emits radio-frequency (RF) signals that travel in one direction. This isn’t ideal for a large facility where signals have to travel a long distance. If there are obstructions in the way, these signals can’t reach their final destination. 

To address this problem, a distributed antenna system uses many antennas spread out over a space. These are typically linked together via a coaxial or fiber cable. Consider the following example to get a better idea of how antennas work together in a DAS. 

A college serves thousands of students, faculty, and staff. It has many buildings spread across acres of land. This school needs continuous wireless coverage, and a single antenna is simply not enough. 

Thanks to a DAS, this college can maintain consistent wireless coverage. The system’s antennas ensure that cellular and Wi-Fi are consistently available. Plus, if an emergency arises, police and other first responders can be notified right away. 

woman working in office using cell phone and computer

What Types of Distributed Antenna Systems Are Available?

Choose between active and passive systems. Active systems feature base station repeaters, which amplify and distribute signals from a cellular base station. Alternatively, passive systems use fiber optic and coaxial cables, which distribute signals from a cellular base station. 

Before you implement a DAS, consider how you will use it. Single-carrier DAS systems support one carrier frequency. Multi-carrier options are available if you need multiple carrier frequencies. 

Take a look at wideband and narrowband DAS system options. As their respective names indicate, the former uses a wide band of frequencies, and the latter uses a narrow band of frequencies.  

Deploy a DAS on its own. Or, use it with your other wireless technologies, including cell phone signal boosters that will amplify cellular signals to smartphones, tablets, and other mobile devices across your facility. 

What Are the Benefits of a Distributed Antenna System?

When considering whether or not a Distributed Antenna System would be good for your facility, consider the following benefits:

  • Enhanced Wireless Coverage: Improve wireless coverage at large facilities and those located in remote areas. 
  • Less Interference: Prevent interference from devices on a frequency band.
  • More Flexibility: Add or remove antennas from your system whenever you choose. 
  • Increased Capacity: Use antennas and smart algorithms to schedule transmissions on different channels.

Distributed antenna system companies, like Delco Solutions, can help you determine if now is the right time to get a DAS. If you go with one, your DAS company can make sure you can use your system in conjunction with audio visual services and many others. 

Ready to Get a Distributed Antenna System?

Delco Solutions is the premier audio visual and security solutions company in the Greater Philadelphia area. We will teach you everything you need to know about distributed antenna systems. Our technicians prioritize safety and efficiency, helping you select a DAS that improves security and productivity at your facility.

Contact Delco Solutions for a distributed antenna system for your facility.

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