In this paper, we present the Firefighter Communication System --a system designed to enhance and improve firefighter communication during a crisis situation such as a structural fire. The system we present is a half-duplex communication system with an audio horizon for officers and a full-duplex system for standard firefighters. We also address the design for the company commander who simultaneously participates in both systems. These initial designs are the result of ethnographic-style investigations into firefighting practice combined with iterative design.
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