Public Safety Band Bi-Directional Amplifiers for Mission Critical Applications

Understanding the Differences Between Cellular Amplifiers and Public Safety Band Amplifiers.

All bi-directional amplifiers (BDA) boost a signal but there are major differences between cellular and Public Safety BDAs. BDAs that enhance cell phone signals are more commonly known as cellular signal boosters. Public Safety BDAs strengthen signals to two-way radios for first responders.

There are different solutions available for each group. Cellular signal boosters can reduce dropped calls in cars, homes and large buildings while public safety boosters insure seamless mission critical communications for firefighters and police during emergencies.

The Differences in How They Work:

Cellular Signal Boosters

Cell phone boosters take “dead zones” and enhance cellular signals by locating a wireless signal, amplifying it and rebroadcasting it through the coverage area. Hospitals, hotels, universities and companies employ cellular signal boosters to increase productivity and add value to tenants and visitors for all carriers.

Public Safety Bi-Directional Amplifiers

Public safety BDAs also provide a boost to signals but in this case it’s for the two-way radios that are a lifeline for police and firefighters. These BDAs extend the range of the radios in buildings and facilities where reception is poor. They’re also designed to withstand conditions such as high heat and a lack of electricity. These BDAs must transmit across public safety-only bands and frequencies.

The need to provide reliable radio coverage for first responders is continuing to grow around the world. As of 2009, the International Code Council and the National Fire Protection Association have added first responder radio coverage requirements to their fire codes. These codes mandate certain minimum levels of performance, reliability and quality. Many states and municipalities also require public safety BDAs in all new and renovated buildings.

In-Building Technology for Public Safety

The challenge is in finding a way to bring public safety band signals in from the outside of a building and enabling those signals to be sent from within the building. Most applications can solve this problem through the use of a BDA along with distributed antennas. It is extremely important that the BDA you choose is FCC certified. Products that don’t meet FCC specifications are illegal. SureCall’s Guardian3 QR is an FCC certified, NFPA compliant public safety BDA, designed to withstand the extreme conditions that are commonplace during times of emergencies. To learn more about the Guardian3 QR or SureCall’s full line of signal boosters please visit

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