NYC Emergency Responders may lose communications when in-building radio signals are weakened by structures such as concrete, windows and metal. The Auxiliary Radio Communication System (ARCS) Solution is a signal-boosting solution designed to enhance in-building radio frequency (RF) signal coverage for New York public safety radios. These two-way radio signal boosters are used to bring facilities into compliance with both local code and Emergency Responder Radio Coverage (ERRC) code.