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  2. Emergency Broadcast System - Wikipedia

    en.wikipedia.org/wiki/Emergency_Broadcast_System

    The Emergency Broadcast System (EBS), sometimes called the Emergency Action Notification System (EANS), was an emergency warning system used in the United States. It was the most commonly used, along with the Emergency Override system .

  3. Emergency Alert System - Wikipedia

    en.wikipedia.org/wiki/Emergency_Alert_System

    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.

  4. National Emergency Message - Wikipedia

    en.wikipedia.org/wiki/National_Emergency_Message

    The term "Emergency Action Notification" was created when the Emergency Broadcast System went into place in 1963. Before the mid-1970s, this was the only non-test activation permitted (the same rule also applied to the earlier CONELRAD system). The EAN signifies a national emergency, as the wording shows.

  5. Did your cell phone make a screeching noise today? Here’s why

    www.aol.com/america-national-emergency-alert...

    Essentially, what this means is that hundreds of millions of cell phones around the country made a screeching alert noise at approximately the same time today, beginning around 2:20 pm ET.

  6. That blaring noise you heard? It was a test of the federal ...

    www.aol.com/news/know-emergency-alert-test...

    The Emergency Alert System is a national public warning system that's designed to allow the president to speak to t That blaring noise you heard? It was a test of the federal government's ...

  7. Digital Emergency Alert System - Wikipedia

    en.wikipedia.org/wiki/Digital_Emergency_Alert_System

    Although the Emergency Alert System and its predecessor, the Emergency Broadcast System and an even earlier predecessor CONELRAD, have always allowed the transmission of both video and audio, there have been limitations that would be eliminated by the DEAS. For example, the DEAS allowed the ability to broadcast "bottomless" audio messages (i.e ...

  8. Specific Area Message Encoding - Wikipedia

    en.wikipedia.org/wiki/Specific_Area_Message_Encoding

    Specific Area Message Encoding (SAME) is a protocol used for framing and classification of broadcasting emergency warning messages. It was developed by the United States National Weather Service for use on its NOAA Weather Radio (NWR) network, and was later adopted by the Federal Communications Commission for the Emergency Alert System, then subsequently by Environment Canada for use on its ...

  9. Emergency override system - Wikipedia

    en.wikipedia.org/wiki/Emergency_override_system

    A limitation of the Local Access Alert system is that operators have to dial out to end transmission. Simply hanging up the phone connected to the system after an emergency broadcast does not work, and viewers may hear other phone noises – such as off-hook tones or dial tones – before cable programming resumes.