The past ten years have presented some drastic changes within the 2-way industry. The advancement of digital radio portfolios such as Motorola’s MotoTRBO, Kenwood’s NexEdge, and other DMR vendors have given added value to radio users in commercial and industrial organizations. These integrated solutions and applications for voice and data while increasing capacity and providing digital clarity.

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About 22 million people a year are exposed to potentially hazardous noise levels on the job. That attention-getting statistic was reported in an April 2013 article in The Hearing Journal. OSHA's concern in this area got one Texas limestone fabricator's attention. On September 11, 2014, OSHA laid some heavy fines because the employer failed to list the warning signs emitted by the noisy machinery on their shop floor.

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There are many risks facing those who work in the mining industry, not necessarily the least of these being hearing loss. Working constantly next to heavy, loud equipment like conveying systems, drills, and other machinery should be enough to motivate mine workers to wear hearing-protective gear. But, many workers do not, and subsequently suffer some form of hearing loss. 

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Workplace hearing protection programs typically focus on individuals with normal hearing. But what about workers who already suffer from some level of hearing loss?  Even in quiet environments, workers with hearing loss face a number of challenges, including difficulty communicating with colleagues and problems with differentiating important sounds above background noises.

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The concept that loud machines cause hearing damage with prolonged exposure is not a new concept. However, it’s rare to find a situation nowadays where the effects of machinery in a given activity or function are seen affecting a population without any protection involved. One such study was done in Brazil and published in 2014.

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