PORTABLE ANTENNA SYSTEM FOR IMPROVING RADIO COVERAGE

An In-Building Communications system is disclosed which permits communication in tunnels, underground parking garages, tall buildings such as skyscrapers, buildings having thick walls of concrete or metal, and/or any building which has communication dead zones. The invention includes a portable bi-directional amplifier (BDA) system, an outdoor antenna system attached to the building or independently mountable, an indoor antenna system attached to the building or independently mountable inside the building, and a standardized, In-Building Communications Interface Box (IBCIB) affixed preferably to the exterior of the building. The IBCIB communicates with antenna systems attached to the building. Emergency response personnel carry portable outdoor and indoor antenna systems and a portable, battery-powered, BDA system which may be independently deployed or connected to the IBCIB during an event such as a fire, earthquake, an act of terrorism, or whenever radio coverage enhancement is required.