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  2. Emergency Alert System - Wikipedia

    en.wikipedia.org/wiki/Emergency_Alert_System

    On January 13, 2018 at approximately 8:07 a.m. HST, the Hawaii Emergency Management Agency (HI-EMA) mistakenly issued an emergency alert warning of a ballistic missile inbound threatening the region, which was claimed to be not a drill. 38 minutes later, it was announced by HI-EMA and the Honolulu Police Department that the alert was a false alarm.

  3. Emergency alert test – live: Government reveals why phone ...

    www.aol.com/emergency-alert-test-live-millions...

    Text messages were sent to millions of 4G and 5G mobile phones at 3pm on Sunday, prompting an alert to appear on the screen and an alarm to sound, in a trial intended to be used to warn people of ...

  4. Siren (alarm) - Wikipedia

    en.wikipedia.org/wiki/Siren_(alarm)

    Sound sample ⓘ An 1860s-era siren. [2] A siren is a loud noise-making device. There are two general types: mechanical and electronic. Civil defense sirens are mounted in fixed locations and used to warn of natural disasters or attacks. Sirens are used on emergency service vehicles such as ambulances, police cars, and fire engines.

  5. 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 ...

  6. Fire alarm notification appliance - Wikipedia

    en.wikipedia.org/wiki/Fire_alarm_notification...

    Voice evacuation alarms typically are not as loud as horns or bells (although generally standards require the same minimum sound pressure levels), and usually sound an alarm tone (typically a slow whoop, code-3, or chime tone, although this depends on the country and particular application) and a voice message warning that an emergency has been ...

  7. PASS device - Wikipedia

    en.wikipedia.org/wiki/PASS_device

    The PASS device sounds a loud (95 decibel) [1] audible alert to notify others in the area that the firefighter is in distress. On a fireground, the sound of an activated PASS device indicates a true emergency and results in an immediate response to rescue the firefighters in distress.

  8. List of sirens built by Alerting Communicators of America

    en.wikipedia.org/wiki/List_of_sirens_built_by...

    Sound Output and Type Notes BN52 - BN54 Gas-Mechanical 25 8 1942–1953 Rotating 125 dB at 100 ft. The first version of the Mobil Directo which used a 25HP Wisconsin air-cooled engine. BN44E Electro-Mechanical 10 8, 10/12 1948–1967 Rotating 124 dB at 100 ft. The second version of the Mobil Directo which used a 10HP electric motor.

  9. ESPN faces proposed FCC fine of $147K for using emergency ...

    www.aol.com/sports/espn-faces-proposed-fcc-fine...

    ESPN faces a proposed FCC fine for using an emergency alert tone in a promo ad. Using this tone is out of bounds - it's a public safety hazard to confuse or desensitize viewers to actual emergency ...