The Emergency Alert System (EAS) is a national warning system in the United States designed to allow authorized officials to broadcast emergency alerts and warning messages to the public via cable, satellite and broadcast television and AM, FM and satellite radio.

紧急警报系统（Emergency Alert System ，缩写：EAS）是美国的一套警报系统，正式启用于1997年1月，取代了原用以代替电磁发射管制系统的紧急广播系统 （Emergency Broadcast System）。

There have been many screens that the EAS used ever since its debut in 1997. These screens are shown on television by specifically produced EAS encoders, or compatible character generators. This article shows most of the screens used by the EAS.

This video shows one EAS alert from every year since its beginning.

2022年6月25日 · This is a collection of most of the EAS alerts from 1997 to 2010 that I found.Years: 0:00 19973:00 19989:03 199914:52 200020:21 200128:08 200236:06 200346:24...

Each broadcast station and cable system has an EAS designation which defines its role in the EAS structure. These designations are found in EAS state and local plans or state mapbooks that can be obtained from the FCC. Find your station or system on the list for your EAS Local Area.

2014年12月31日 · This is a copy of the original Emergency Alert System operating handbook distributed to AM and FM radio stations.

2022年10月18日 · The Emergency Alert System (EAS) is a national warning system in the United States put into place in January 1, 1997, superseding the Emergency Broadcast System (EBS) and the CONELRAD System. EAS has become part of IPAWS - the Integrated Public Alert and Warning System, a program of the Federal Emergency Management Agency (FEMA).

1997年1月1日 · The Emergency Alert System (EAS) national warning system was approved by the FCC in November 1994, and it officially replaced its predecessor, the Emergency Broadcast System (EBS), on January 1, 1997. It is jointly coordinated by FEMA, the FCC and NOAA.

紧急广播系统 1997年该系统被紧急报警系统 (Emergency Alert System,EAS)取代。 紧急 公共广播系统 是安防系统的重要组成部分。 1、系统应在主电源或备用电源接通10秒内可以进行广播。 2、具有24V或220V应急备用电源，主备电源切换时间不大于1s.;应急备用电源至少能支持15分钟的紧急广播。 如果电池被当作备用电源使用，它们应配有自动充电装置。 3、突发公共事件紧急广播用 功率放大器 的额定功率不小于其所驱动的所有扬声器功率总和的1.5倍。 突发公共事件紧急广 …