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Bi-Directional Amplifiers, also known as BDAs, are signal boosters that support two-way radio and cellular communications throughout a facility – improving challenging areas that might not otherwise receive signal. BDAs are amplifiers/repeaters that boost and distribute a signal covering various frequencies. BDAs can be part of a Distributed Antenna System (DAS), which is a network of separate antenna nodes connected to a common transport medium. Collectively, BDA/DAS equipment is often referred to as wireless In-Building Solutions.

Many businesses are finding themselves in need of bi-directional amplifiers because municipalities are now implementing a building code that requires BDAs called Emergency Responder Radio Coverage (ERRC) code. These codes mainly affect new occupancies, but also businesses looking for permits to renovate existing buildings to be compliant. Under these new codes, it is also required that your new BDA/DAS must be inspected and tested annually in order to guarantee functionality during critical times. ERRC codes are put into place to ensure first responders’ safety and communication in the case of an emergency inside of structures that they could otherwise lose signal in.

ComSource provides a variety of bi-directional amplifiers and distributed antenna systems from companies such as Cobham, Tessco, and Westell to extend your coverage and range, as well as fit your individual budget and needs. Nearly every BDA solution is custom-designed for each unique environment and expertly installed by our certified technicians. Variables such as building materials, dead spots, and signal interference offer specific challenges and ComSource has extensive experience deploying in-building wireless systems to meet nearly any operating condition.


  • Customized
  • Code compliant
  • Expertly installed
  • Routinely Serviced
  • Annually Tested

Installing BDAs is not only beneficial for first responders in emergency situations, they improve productivity and safety for work teams such as maintenance, engineering, operations, and security. To explore the right BDA/DAS systems to get your facility compliant and fully operational, please contact us today for your FREE consultation.