Radio repeater system

摘要

A system and/or method for facilitating wireless communication in an area where it is difficult to transmit and receive signals may use a preexisting wired emergency communication infrastructure to transmit signals between elements of a radio repeater system. Optionally, the system may include synchronization of retransmissions. Analog and/or digital signals and/or data may optionally be transferred over the preexisting network. Data and/or signals may optionally include audio and/or video signals, digital data, telemetry data, and/or synchronization data. The system may optionally include multiple wireless receivers and/or a voter to select a version of a signal from at least one of the receivers. A network for concurrent repeating of a direct mode simplex wireless signal may optionally include multiple receivers and/or a voter. The simplex network may optionally include a coloring circuit. The power of retransmission and/or the insulation between a receiver and a transmitter may optionally be adjusted.

主权项

1. A method of retrofitting an emergency communication system comprising:
supplying a building having a hard wired preexistent system for emergency communication, the preexistent system conforming to a historical fire code standard, the preexistent system including one or more of pairs of fire resistant wires connecting a plurality of access nodes to a central panel; coupling one or more adapters to one or more pairs of wires of the one or more pairs of fire resistant wires; installing at least two receivers of emergency band wireless signals into said building; each of said at least two receivers communicating with at least one of said one or more adapters such said signals received by receivers are relayed by said one or more adapters onto said one or more pairs of fire resistant wires; connecting a communication interface to said one or more pairs of fire resistant wires such that said communication interface receives said signals relayed over said one or more pairs of fire resistant wires; receiving multiple versions of one signal by said communication interface outputting a single version of said one signal; further connecting said communication interface to a first network transmitter; transmitting by said first network transmitter of said single version of said one signal over an emergency wireless band; also connecting said communication interface to a second network transmitter; synchronizing said second network transmitter with said first network transmitter; and simultaneous transmitting by said second network transmitter said single version of said one signal over said emergency wireless band, simultaneous to said transmitting of said first network transmitter.