A public safety distributed antenna system (DAS) is a specialized radio network that first responders use to communicate with various parties during an emergency. You can find these types of systems in offices, commercial buildings, parking garages, and schools to keep these areas safe.

However, there are a few myths associated with this type of technology. In this guide, you will learn about some common myths about public safety distributed antenna systems.

Myth #1: These Systems Don’t Work in All Areas of a Building

Although you might not be able to see them, public safety DAS equipment components can send radio signals to virtually any location within a building. This is because the National Fire Protection Agency (NFPA) mandates that 99% of critical areas such as stairways and basements receive coverage.

In addition, they require general use areas such as offices and break rooms to receive 90% coverage. What this means is that no matter where you are in a building, a public safety DAS will allow first responders to reach you and communicate with help outside the building.

Myth #2: Public Safety DAS Won’t Work if the Power Goes Out

Another common myth about public safety distributed antenna systems is that they won’t work if the power goes out, rendering the entire system obsolete. However, first responders plan for this by installing a battery backup to power the system for a minimum of 24 hours after the power goes out. The NFPA requires public safety DAS to have a battery backup because communication during an emergency is crucial for saving lives.

Myth #3: Wi-Fi Is Just as Good as a Public Safety Distributed Antenna System

In the event of an emergency, Wi-Fi won’t cut it because if the power goes out, the system goes down. Public safety DAS can penetrate tough building materials such as concrete and steel that Wi-Fi cannot.

If you have Wi-Fi at home, there has probably been at least one occasion when you lost Wi-Fi signal after going outside or entering a different room. This type of signal loss would not happen with a public safety DAS.

Overall, there are numerous misconceptions about public safety DAS, but as long as you educate yourself, you can easily separate fact from fiction. If you want to learn more about emergency responder radio coverage, there are many resources available online.