Where the acquisition of the phone plug | Beijing acquisition of the phone plug | Obo Electronics

Hertz by flashing sparks, first confirmed the existence of electromagnetic waves, but he categorically denied the possibility of using electromagnetic waves of mobile phones. In his view, to use electromagnetic waves mobile phones, the need for a considerable area of ??the European continent giant mirror, obviously this is not possible. Hertz discovered electromagnetic waves news spread, to Russia are engaged in a lamp Popov promotion of youth there, he excitedly said: 'With my life energy to install lights on the vast Russia, but according to bright little corner, if I can buy a lot of command electromagnetic phone plug cable, you can overflew the whole world! 'In 1894, Popov improved radio receiver and add an additional antenna to greatly improve sensitivity. 1896 buying the phone plug cable, Popov successfully used radio to transmit Morse code at a distance of 250 meters, the message reads: Haiyinlisi 'Hertz. In the May 18, 1897, another study of young Marconi radio, improved radio transmitting and receiving equipment, in the Bristol Channel radio phone success, the dissemination of information by 12 kilometers. In 1898, Britain held a yacht race, the end is located 20 miles offshore at sea. "Dublin Express" distinguished Marconi as information officers. He used his invention at the end of the race of the wireless telegraph shore viewers timely information about the outcome of the game, causing a great sensation. This is considered to be the first practical radio phone applications. Then, Marconi in Britain to establish the world's first radio equipment company Marconi ^ England. In 1901, the British radio report can be sent across the Atlantic, but then the antenna is made of metal wire holding the kite. 1902 between the United Kingdom and Canada formally launched the transatlantic wireless telegraphy phone circuit acquisitions phone plug, make international phone telegraph people jump into a new stage. In China, the first application of the telegram is guilty of 0 years 1 July Chunghwa Post offered postal telegraph business. Christmas Eve December 24, 1906, around 20:00, the shuttle near the coast of New England vessels, some of got used to the 'Didi blah' Morse code sound radio operator who suddenly heard headphones came someone is reading the Bible story, someone took the violin, but also the styles of Handel's "soothing music" radio operator who Zhengzhu, they loudly shouting the name of fellow professional acquisition of the phone plug cable, have The headset is passed to the companion to listen, really, we all clearly heard the sound of voices and music, and finally heard the sound kind of blessing, a few minutes later, it was rumored that the headphones used to listen to the sound code. In fact, this is not a miracle occurs. Instead hosted by the American physicist organizations Fessenden and radio broadcast for the first time in human history. The broadcast equipment by Fessenden spent four years out of the design, including special high-frequency AC wave radio transmitters and amplitude modulation system can, from this point onwards, carrying the sound waves can begin fly a. Before There are also countless people have made achievements in research on radio, which is the father of the most famous radio broadcast of one American Banat, 史特波斐德, he began research in 1886, after ten years unremitting efforts and achieved success, in 1902, he was in the city of Murray, Kentucky, he conducted the first radio broadcast. They put away the microphone at Murray Plaza. '史特波斐德 son in front of the microphone to speak from the Banat, playing harmonica, he placed five crystal radio in the nearby woods, able to speak and hear clearly harmonica sound, the test was a success. And later it was broadcast in Philadelphia and received a patent. Now, in the Murray State University campus trees still have 'the father of one radio Banat' 史特波斐德 'monument. At the same time radio phone gradually for war. In the first and second world war, it has played a lot of power, so that it was the Second World War called "radio war 'where the acquisition of the phone plug | Beijing acquisition of the phone plug | Obo electrons from Shenzhen City Aobo Electronic Technology Limited. Shenzhen City Aobo Electronic Technology Co. (www.aobodz.com) strong, credible, in other industries in Shenzhen, Guangdong has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Obo electronics into the brilliant and you work for a better future!