Morse code radiotelegraphy is popularly known as CW (continuous wave), or CW Radiotelegraphy. However, Morse code transmission over the radio, despite its early genesis, due to its sheer simplicity and requirement of minimal equipment complexity continues to remain the most robust mode of radio communication to date. With the advancement in technology, many different modes of information modulation over the radio were developed over the centuries. All other modulation modes like radiotelephony etc came into existence much later. The transmission of Morse code over the radio waves thereafter became the standard method of radio communication. ![]() Marconi used the Morse code to conduct the historic maiden radio contact. The structure of the code has been intelligently designed to provide high efficiency by assigning shorter code sequences to the alphabets that were more frequently used in the formation of English language words and sentences. After some refinements, Morse code could be used to communicate through uppercase alphabets, numerals, and several punctuation marks. ![]() CW Radiotelegraphy is an adaptation of the cable telegraphy based on the Morse code signalling method for text communication devised by Samuel Morse way back in the year 1837. CW Radiotelegraphy is the oldest mode of radio communication and yet perhaps the most robust mode available to mankind to date.
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