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  2. Radio repeater - Wikipedia

    en.wikipedia.org/wiki/Radio_repeater

    A radio repeater is a combination of a radio receiver and a radio transmitter that receives a signal and retransmits it, so that two-way radio signals can cover longer distances. A repeater sited at a high elevation can allow two mobile stations, otherwise out of line-of-sight propagation range of each other, to communicate. [ 1 ]

  3. Emergency Broadcast System - Wikipedia

    en.wikipedia.org/wiki/Emergency_Broadcast_System

    WHEN radio in Syracuse, New York and WGR radio in Buffalo, New York both had a sung version of the most common script. [32] There was also a version done by Los Angeles-based Cheap Radio Thrills, as well as another by the comedy team of Bob and Ray. The FCC declared it illegal to sing the test message, or read it as a joke.

  4. Radio Emergency Associated Communication Teams - Wikipedia

    en.wikipedia.org/wiki/Radio_Emergency_Associated...

    (a) To develop the use of personal radio services as an additional source of communications for emergencies, disasters, and as an emergency aid to individuals; [1] (b) To establish 24-hour volunteer monitoring of emergency calls, particularly over officially designated emergency frequencies, from personal radio service operators, and report such calls to appropriate emergency authorities; [1]

  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. American Forces Network - Wikipedia

    en.wikipedia.org/wiki/American_Forces_Network

    Its radio frequency throughout Afghanistan was 94.1 and 97.1 in Manas and produced live local shows. Its first radio transmission was at 06 o'clock 30 min on Friday, 21 July 2006. Beyond radio, AFN Afghanistan also had television news. It produced a daily five-minute newscast called Freedom Watch Afghanistan, which also aired on the Pentagon ...

  7. Combat-net radio - Wikipedia

    en.wikipedia.org/wiki/Combat-net_radio

    CNRs are primarily used for push-to-talk-operated radio nets for command and control of combat, combat support, and combat service support operations among military ground, sea, and air forces. In the United States, two military standards govern the use of combat net radios and the host applications that communicate over the network: MIL-STD ...

  8. Citizens band radio - Wikipedia

    en.wikipedia.org/wiki/Citizens_band_radio

    Citizens band radio (CB radio) is a land mobile radio system, a system allowing short-distance one-to-many bidirectional voice communication among individuals, using two-way radios operating near 27 MHz (or the 11-m wavelength) in the high frequency or shortwave band.

  9. Distress signal - Wikipedia

    en.wikipedia.org/wiki/Distress_signal

    A distress signal, also known as a distress call, is an internationally recognized means for obtaining help.Distress signals are communicated by transmitting radio signals, displaying a visually observable item or illumination, or making a sound audible from a distance.

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