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  1. Morse code - Wikipedia

    en.wikipedia.org/wiki/Morse_code

    This Morse key was originally used by Gotthard railway, later by a shortwave radio amateur [2] Morse code is a telecommunications method which encodes text characters as standardized sequences of two different signal durations, called dots and dashes, or dits and dahs. [3][4] Morse code is named after Samuel Morse, one of the early developers ...

  2. Theme from Mission: Impossible - Wikipedia

    en.wikipedia.org/wiki/Theme_from_Mission:_Impossible

    The theme is written in a 5 4 time signature, which Schifrin has jokingly explained as being for mutant people with five legs. [1]The Morse code for M.I. is two dashes followed by two dots ; if a dot is one beat and a dash is one and a half beats, then this gives a bar of five beats, exactly matching the theme's underlying rhythm. [2]

  3. Morse code mnemonics - Wikipedia

    en.wikipedia.org/wiki/Morse_code_mnemonics

    Morse code mnemonics are systems to represent the sound of Morse characters in a way intended to be easy to remember. Since every one of these mnemonics requires a two-step mental translation between sound and character, none of these systems are useful for using manual Morse at practical speeds. Amateur radio clubs can provide resources to ...

  4. SOS - Wikipedia

    en.wikipedia.org/wiki/SOS

    SOS is a Morse code distress signal ( ), used internationally, originally established for maritime use.In formal notation SOS is written with an overscore line (SOS), to indicate that the Morse code equivalents for the individual letters of "SOS" are transmitted as an unbroken sequence of three dots / three dashes / three dots, with no spaces between the letters. [1]

  5. American Morse code - Wikipedia

    en.wikipedia.org/wiki/American_Morse_code

    American Morse Code — also known as Railroad Morse—is the latter-day name for the original version of the Morse Code developed in the mid-1840s, by Samuel Morse and Alfred Vail for their electric telegraph. The "American" qualifier was added because, after most of the rest of the world adopted " International Morse Code," the companies that ...

  6. International Code of Signals - Wikipedia

    en.wikipedia.org/wiki/International_Code_of_Signals

    One simply raises the Kilo flag (see diagram at the top), or sends the Morse Code equivalent (dash-dot-dash) by flashing light; this has the assigned message of "I wish to communicate with you." One practical application of the ICS is that all of the standardized messages come in nine languages (English, French, Italian, German, Japanese ...

  7. Prosigns for Morse code - Wikipedia

    en.wikipedia.org/wiki/Prosigns_for_Morse_code

    The procedure signs below are compiled from the official specification for Morse Code, ITU-R M.1677, International Morse Code, [1] while others are defined the International Radio Regulations for Mobile Maritime Service, including ITU-R M.1170, [8] ITU-R M.1172, [4] and the Maritime International Code of Signals, [5] with a few details of their ...

  8. Telegraphy - Wikipedia

    en.wikipedia.org/wiki/Telegraphy

    According to Morse, telegraph dates only from 1832 when Pavel Schilling invented one of the earliest electrical telegraphs. [3] A telegraph message sent by an electrical telegraph operator or telegrapher using Morse code (or a printing telegraph operator using plain text) was known as a telegram.