July  2020

Newsletter  Volume:  7 — Issue:  7

BDA — Not a Boost for Your WiFi 

Bi-Directional Amplification (BDA) may be required in your building


There are several new building codes which require newly constructed structures and depending on your location, existing structures as well to meet minimum “Emergency Radio” signal strength.  The purpose of these codes is to ensure that the radios of fire, EMS, and police emergency responders will operate effectively throughout a given facility.

Some new or existing construction may already meet the minimum signal strength requirements based on the facility’s proximity to existing Public Safety Radio Repeater infrastructure and the building’s construction material make up. To determine if a BDA system is required a site survey is conducted by a Federal Communications Commission (FCC) representative and a BDA system certified technician.  If the building meets the minimum signal strength throughout then there is no need to install a BDA system.  However, if some portion of the facility fails to meet minimum signal strength a BDA system will be required. All municipalities have their own specific requirements, so for requirements in your area contact your Authority Having Jurisdiction (AHJ).  Click for Seattle’s requirements or Portland’s requirements (section 510).

Just as with the site survey for signal strength, BDA systems are: designed, installed, certified, and maintained by a FCC and BDA certified technician(s).  Absco Solutions can assist you should your facility require a BDA survey or subsequently a BDA system.

For more on technical information, reference Honeywell BDA system details here. In our next newsletter, we will share a retrofit BDA installation case study.

Erick Slabaugh, Absco Solutions, CEO 

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