Whether a high-rise building or a low structure, radio signs are weakened by concrete, metal and other building materials, as well as low-energy glass, below ground structures and other obstructions.

BDA systems protect against poor in-building radio signal coverage and “dead spots” that threaten safe rescue operations. Ensuring the proper BDA system and maintenance program is established and compliant with current codes protects and aids emergency responders when called to saving lives and property.