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Why buy an AIS unit?

机译:为什么要购买AIS装置?

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For free text messaging, maybe, but most messages are banned. Will falling prices sell these things? Automatic Identification Systems -- electronic units that monitor a vessel's movements and transmit that information to other vessels and shore-basedstations via VHF signals -- have been heralded as the best new safety gadget since radar. But so far, confusion about their use has been their most notable characteristic. In July, the U.S. Coast Guard published an interim rule indicating commercial vessels greater than 65 feet must have AIS units, especially those transiting vessel traffic service (VTS) areas, metropolitan port areas such as San Francisco, Puget Sound, Prince William Sound and Los Angeles. After much opposition, the Coast Guard dropped the carriage requirement for fishing vessels when it published the final rule in November.
机译:可能是免费的短信功能,但大多数信息均被禁止。价格下跌会卖掉这些东西吗?自动识别系统-监视船只运动并将其信息通过VHF信号传输到其他船只和岸基站点的电子装置-被誉为自雷达以来最好的新型安全工具。但是到目前为止,对其使用的困惑一直是其最显着的特征。 7月,美国海岸警卫队发布了一项临时规则,规定65英尺以上的商船必须装有AIS装置,尤其是那些过境船舶交通服务(VTS)区域,大城市港口区域,如旧金山,普吉特海湾,威廉王子湾和洛斯安吉利斯经过多次反对,海岸警卫队在11月发布最终规则时取消了对渔船的运输要求。

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