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  2. Telegraph sounder - Wikipedia

    en.wikipedia.org/wiki/Telegraph_sounder

    A telegraph operator would translate the sounds into characters representing the telegraph message. Telegraph networks, used from the 1850s to the 1970s to transmit text messages long distances, transmitted information by pulses of current of two different lengths, called "dots" and "dashes" which spelled out text messages in Morse code .

  3. Morse code - Wikipedia

    en.wikipedia.org/wiki/Morse_code

    Chart of the Morse code 26 letters and 10 numerals [1]. 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.

  4. Telegraph code - Wikipedia

    en.wikipedia.org/wiki/Telegraph_code

    A telegraph code is one of the character encodings used to transmit information by telegraphy. Morse code is the best-known such code.Telegraphy usually refers to the electrical telegraph, but telegraph systems using the optical telegraph were in use before that.

  5. Wireless telegraphy - Wikipedia

    en.wikipedia.org/wiki/Wireless_telegraphy

    At the receiving location, Morse code is audible in the receiver's earphone or speaker as a sequence of buzzes or beeps, which is translated back to text by an operator who knows Morse code. With automatic radiotelegraphy teleprinters at both ends use a code such as the International Telegraph Alphabet No. 2 and produced typed text.

  6. Morse code abbreviations - Wikipedia

    en.wikipedia.org/wiki/Morse_code_abbreviations

    Morse code abbreviations are not the same as prosigns.Morse abbreviations are composed of (normal) textual alpha-numeric character symbols with normal Morse code inter-character spacing; the character symbols in abbreviations, unlike the delineated character groups representing Morse code prosigns, are not "run together" or concatenated in the way most prosigns are formed.

  7. Friedrich Clemens Gerke - Wikipedia

    en.wikipedia.org/wiki/Friedrich_Clemens_Gerke

    Friedrich Clemens Gerke (22 January 1801 – 21 May 1888) was a German writer, journalist, musician and pioneer of telegraphy who revised the Morse code in 1848. It is Gerke's version of the original (American) Morse code now known as the International Morse code and standardized by the ITU (International Telecommunication Union) which is used ...

  8. QSA and QRK radio signal reports - Wikipedia

    en.wikipedia.org/wiki/QSA_and_QRK_radio_signal...

    The QSA code and QRK code are interrelated and complementary signal reporting codes for use in wireless telegraphy . An enhanced format, SINPO code , was published in the ITU Radio Regulations, Geneva, 1959, [ 1 ] but is longer and unwieldy for use in the fast pace of Morse code communications.

  9. The CW Operators' Club - Wikipedia

    en.wikipedia.org/wiki/The_CW_Operators'_Club

    The CW Operators' Club, commonly known as CWops, is an international organization, in membership and management, for amateur radio operators who enjoy communicating using Morse Code. Its mission is to foster the use of CW , whether for contesting , DXing , traffic handling , or engaging in conversations. [ 1 ]

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