The telegraph was invented by the American Samuel Finley Breese Morse, who in addition to inventing the telegraph, guided and prepared the relevant code, which also bore his name. The Morse code until now known, used and spread around the world, are short signals ( points) and long (dashes ) combined to match the numbers and letters of the alphabet, thus producing different sounds, each letter, number or punctuation has its characteristic sound, making it unmistakable.

But the wireless telegraph was definitely invented by Italian engineer Gugliemo Marconi, who in the year 1895 began the transmission and reception of signals via electromagnetic waves, wireless, using the telegraph by Samuel Morse. Marconi consolidated several discoveries of the time, achieving total success in transmitting and receiving Morse code signals by radio over wireless telegraphy, and shall be accorded the device patent in the year 1896 in England.

The radio and amateur radio emerged almost simultaneously because of the great interest in researching all electromagnetic phenomena. Despite the dizzying technological development of today, artisanal assembly equipment gained a connotation of substantial challenge that remains in the practices of amateurs as well as the extensive research field around antennas, propagation of radio electric signals carried by electromagnetic waves and Technological Research.

The telegraph was invented by Samuel Finley Breese Morse, born April 27, 1791 in Charlestown, Massachusetts - United States, he studied at Yale College, where he became interested in electricity. In 1832, during a boat trip, he participated in a debate on the electromagnet, still little known device. In 1835 it built its first functional prototype telegraph whose research and developments extended until mid-year 1838 when, finally, was a really functional signs of code called Morse code. In 1843 he managed funds for his invention through the US Congress, and in 1844 was completed the first telegraph line linking Baltimore to Washington, DC. In his first official broadcast the message was: "What hath God wrought !

Samuel Morse died on April 2, 1872, in New York.

The telegraph is still widely used by global communications. Since the Second World War came to be used in parallel with other modes of transmission such as SSB Single Side Band, currently uses up the radio package for encrypted communications but Morse code is still being used in various applications of terrestrial communications and air and maritime navigation. Also some satellites use the Morse code for its identification signal location and telemetry .

Since the dawn of civilization, because the need for communication at distance, man created numerous systems that would enable the transmission of your messages. This transmission originally performed by means of sound or light signals in place and being translated in other common code. Among the telegraph systems the world's leading listed the Samuel Morse (USA), Wheatstone (England) and the Steinhail (Germany). The Morse system was the one that presented more fully, keeping its basic lines to this day. In very recent times it was created the Advisory Committee Inter -national Telegraph, in order to standardize telegraph transmissions, adopting standardized coding and frequencies.

In November 1997 there was the World Radio Conference ( CRM -97 ) ITU ( International Telecommunication Union ), which is the international body responsible for standardizing all telecommunications on our planet. This Conference was presented and approved the official pronouncement ITU / IARU regarding the use of telegraphy in the world. Nothing affected the amateur radio service, and decisions about possible changes in the requirements of the tests MORSE CODE, were postponed to a later date.

References to the immediate termination of the CW, is the result of misinformation and confusion. It turns out that the services using the Morse code by Marine from various countries has been closed, and that, fortunately HAS no relation to the amateur radio service.