联邦政府提前通告:明天若手机收到此短信莫惊慌
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全美所有电视台、电台和手机网络,将于东部时间明天(4日)下午2点20分进行紧急警报测试。联邦紧急事务管理署(FEMA)表示,“全国紧急警报测试”(Nationwide
Emergency Alert
Test,简称NEAT)是用来确保在出现紧急情况时,警报系统能够正常运作,此次是2011年以来的第7次测试。
综合《今日美国》和CBS新闻的报道,NEAT每3年进行一次。除了会让装置发出警报声外,还会显示讯息。NEAT将测试紧急警报系统(EAS)和无线紧急警报(WEA),WEA针对所有手机,而EAS将针对所有电台和电视广播公司、有线系统、卫星广播和电视供应商,以及有线视频供应商,换言之,几乎到处都能听到和看到这个资讯。东部时间明天下午2点20分至2点50分,全美电视和广播节目将被中断,伴随着由FEMA发出的紧急讯息,告知民众不需采取任何行动,手机则会收到提示音、振动和短讯,不过较旧型号的装置未必会收到通知。警报将持续约一分钟,并只会发出一次。因时区有差异,因此民众应查看当地测试时间。假如出现情况导致无法测试,将顺延至11日进行。
是次测试由FEMA
和联邦通信委员会(FCC)共同进行。只有打开手机才会收到通知,如果手机设置为Wi-Fi或飞航模式,将无法收到警报,因为警报是从蜂巢式广播系统发出的。警报音量将类似安珀警报(Amber
Alert)或国家气象局在恶劣天气下发布的警报。FEMA表示,发送至手机的WEA警报将伴随着独特音调和振动模式,以确保包括残疾人士在内所有民众都能收到。受测试的警报用作于自然灾害、袭击和事故发生时发出通知。由于警报仅在重要关头才用,因此法律严禁在未经授权下播放或录下紧急警报。
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