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Morse code is a method used in telecommunication to encode 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 of the system adopted for electrical telegraphy .
Visual mnemonic charts have been devised over the ages. Baden-Powell included one in the Girl Guides handbook in 1918. A contemporary Morse code chart. Here is a more up-to-date version, ca. 1988: Other visual mnemonic systems have been created for Morse code, mapping the elements of the Morse code characters onto pictures for easy memorization.
Comparison of historical versions of Morse code with the current standard. Original version by Morse (American Morse Code or Railroad Code), version by Gerke (Continental Morse Code) and the ITU standard. Source Self created using Inkscape Date 12th September 2010 Author Sp in ni ng Spark. Permission (Reusing this file) See below.
Diagram of a telegraph key used to send messages in Morse code. Procedural signs or prosigns are shorthand signals used in Morse code telegraphy, for the purpose of simplifying and standardizing procedural protocols for landline and radio communication. The procedural signs are distinct from conventional Morse code abbreviations, which consist ...
Morse-Code.svg. File. File history. File usage. Size of this PNG preview of this SVG file: 360 × 495 pixels. Other resolutions: 174 × 240 pixels | 349 × 480 pixels | 558 × 768 pixels | 745 × 1,024 pixels | 1,489 × 2,048 pixels. Original file (SVG file, nominally 360 × 495 pixels, file size: 123 KB) The source code of this SVG is valid.
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Contents. File:Morse Code Mnemonic chart from Girl Guides handbook 1916.jpg. Size of this preview: 800 × 573 pixels. Other resolutions: 320 × 229 pixels | 640 × 458 pixels | 932 × 667 pixels. Original file (932 × 667 pixels, file size: 115 KB, MIME type: image/jpeg)
16-line message format. 16-line message format, or Basic Message Format, is the standard military radiogram format (in NATO allied nations) for the manner in which a paper message form is transcribed through voice, Morse code, or TTY transmission formats. The overall structure of the message has three parts: HEADING (which can use as many as 10 ...