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  2. Plectron - Wikipedia

    en.wikipedia.org/wiki/Plectron

    A Plectron is a specialized VHF/UHF single-channel, emergency alerting radio receiver, used to activate emergency response personnel, and disaster warning systems. Manufactured from the late 1950s, through the late 1990s, by the now defunct Plectron Corporation in Overton, Nebraska , hundreds of thousands of these radios were placed in homes of ...

  3. Emergency service response codes - Wikipedia

    en.wikipedia.org/wiki/Emergency_service_response...

    Country Fire Authority There are two types of response for the Country Fire Authority which cover the outer Melbourne Area. These are similar to those used by Ambulance Victoria, minus the use of Code 2. Code 1: A time critical event with response requiring lights and siren. This usually is a known and going fire or a rescue incident.

  4. 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.

  5. Emergency radio - Wikipedia

    en.wikipedia.org/wiki/Emergency_radio

    Some emergency radios can also be powered by an attached solar panel. One element that separates some emergency radios from other types of radios, is the ability to broadcast alerts via the Emergency Alert System, even when the radio sound is turned off. This is especially useful in areas where sudden storms, tornadoes, tsunamis or other fast ...

  6. International distress frequency - Wikipedia

    en.wikipedia.org/wiki/International_distress...

    GMRS: 462.675 MHz is a UHF mobile distress and road information calling frequency allocated to the General Mobile Radio Service and used throughout Alaska and Canada for emergency communications; sometimes referred to as "Orange Dot" by some transceiver manufacturers who associated a frequency with a color-code for ease of channel coordination ...

  7. Ten-code - Wikipedia

    en.wikipedia.org/wiki/Ten-code

    Fire under Control Emergency Traffic Only Radio users will confine all radio transmissions to an emergency in progress or a new incident. Radio traffic which includes status information such as responding, reports on conditions, at scene and available will not be authorized during this period. Emergency Traffic