![]() ![]() In this regard, here is a brilliant statement: Generations of Marconists have spent their lives beating on the telegraph key enough to take the morse code as a second language. Morse code has been widely used for almost a century and a half. Through telegraphy we were told our story, with new technologies tell our future. The last telegraph plant to be officially dismantled dates back to 1985, it was at a small office in the Province of Rome. The telegraph key will be the protagonist of Morse communication for all subsequent generations of Marconi radio to this day. ![]() the first radio-phonic programs are carried out. In 1904 the highest quality was achieved with the advent of the Diode, the thermionic valve with which it was possible to transmit and receive the human voice ĭE FOREST later invents the triode, which allowed modulation and demodulation of the signal and the ability to generate persistent radio waves at any frequency and high power. It was thought, indeed, that go beyond the horizon it was not possible because the electromagnetic waves travel in a straight line. In 1900 it was established a radio-telephone connection to the 300 km distance between Cornwall and the Isle of Wight, southern England, demonstrating what science considered impossible: Thus he created an antenna for receiving and transmitting systems. In the first experiments Marconi used a primitive radio-telegraphy system that was based on the basic principles of Herz's scientific experiments. Guglielmo Marconi, called "Father of radio communications", was the first to use radio waves to transmit messages remotely without needing a physical connection (with wires) between a transmitting station and a receiver. In 1895 the invention of radio opens up new perspectives: the Morse signals began to be propagated through the airwaves (electromagnetic waves) and the name was changed to radio-telegraphy. In 1851, aying of the first submarine cable between France and England, international communications began. They could transmit up to ten words per minute with a telegraph key operated by hand, and these signs were then to be deciphered and transcribed by hand. Such a sequence of dots and dashes represented (in Morse code) various letters, punctuation marks of the transmitted message. In the ceiving station it was placed an electromagnet provided with stirrer which was combined with a writing tip tracing on a strip of more or less long stretches card (lines or dots). The first schematically constituted by a switch (telegraph key) which allow or interrupt the passage of electric current along the wire connecting the transmitting station to the receiver. To achieve this signaling system, Morse invented an alphabet of signs that could be transmitted with his electric telegraph, patented in America in 1838.įrom this moment begins the era of modern communications: In 1832, during an Atlantic crossing aboard a tall ship, Samuel Morse listened casually on the electromagnet a conversation, this event inspired him to study a particular signaling system based on electricity. ![]()
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