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Abstract

A multi-functional underwater device for use by scuba divers for communicating with and tracking the relative direction of one or more other divers. The device is configured to monitor and communicate with multiple other devices simultaneously and includes a transmitter and receiver assembly for transmitting location signals to and receiving location signals from other communication devices on frequencies defined by a communication channel setting for the device. A processor processes signals to determine separation distance between the devices and to compare separation distances to a safety distance. A display assembly indicates communication channel and safety distance for the communication device and indicates when the separation distance is exceeded. The display assembly includes an input portion operable to set the safety distance and/or the communication channel. The transmitter and receiver assembly transmits and receives communication signals, such as check diver and emergency signals, at frequencies defined by the communication channel.

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First Claim