Friday, April 17, 2020

The History Of Radio Essays - Broadcast Engineering,

The History of Radio In 1844, Samuel Morse successfully demonstrated an invention known as the telegraph. The telegraph, which Morse invented in 1832, consisted of a current charged wire, location points (A and B), and a current breaker, which could be used to send dashes and dots. These dashes and dots could be successfully understood at the other end of the cable, thus introducing the world to Morse code. Thirty-two years later, a man by the name of Alexander Graham Bell introduced a device that would come to be known as the telephone. With Graham's device, people could actually talk to each other by using a series of connecting lines placed between the sender and receiver. At the time, the United States wanted to use this as a means for communications at sea. The only problem was that there was not a wireless form in existence. In 1897 everything changed. An Italian inventor named Guglielmo Marconi, developed the first ?wireless? system and patented it in Great Britain. In 1899, a steam ship was equipped with Marconi's device and used it to transmit the results of a yacht race back to the shore. The beginning of a new era in mass communications was beginning. As the dreams of transmitting speech and live concerts to secondary locations grew, a man by the name of Reginald Fessenden (?flyboy? Regi F to his peep's?not really but I though that might help break up the monotony of reading twenty papers over the same subject) stepped in with his application of a continuos wave super imposed on another wave created by sound. In 1905, a man by the name of Lee de Forest developed a radio vacuum tube that he called the Audion. The Audion was inspired by the invention of a glass bulb detector that had been created a few years earlier by John Fleming. This enabled the telephone to receive and amplify sound and was a key element in the development of radio broadcasting. In order to gain publicity for his ventures, de Forest spent a night on top of the Eiffel Tower broadcasting music, which was received by people up to 500 miles away. De Forest used radio as a medium to educate and uplift his audience by broadcasting opera's and broadcasting the presidential returns in 1916. By 1917, there were close to nine thousand radio transmitters in the United States. When the U.S. declared war on Germany, transmitters were either shut down, or taken over by the armed forces. With the First World War, came advances in the industry. The Allies convinced all the companies to work together in establishing interchangeable parts. Over the course of the War, the Navy continued to communicate with America's armed forces and in 1918, even broadcast President Wilson's appeal for peace to the citizens of Germany. The Navy became worried by the end of the war that Marconi's British company might be in the position to take over control of world communications. In an effort to pre-empt Marconi, Navy officials and General Electric president Owen Young formed the Radio Corporation of America (RCA) in 1919. The government then turned over all of the American Marconi stations that had been seized by the Navy during the war, to RCA. With the support of AT&T and General Electric, RCA would soon dominate communications in and out of America. By the 1920's, radio had become more than just a means for ship to shore communication. Stations began to pop up all over the country and corporate America, along with the public, began to take notice. Westinghouse began manufacturing and selling radio units. As an incentive to buy the units, programming was developed. AT&T was not pleased. They believed that under the RCA agreement, they were the only one's who could set up radio stations. In their view, radio stations were nothing short of over sized telephone booths that could be used to communicate over long geographical distances. In order to keep people listening in the interim, they began having people on the air to play music or to sing. In 1922, AT&T was approached by a developer who wanted to build Hawthorne Estates. His proposal was to pay AT&T money to talk about the

No comments:

Post a Comment

Note: Only a member of this blog may post a comment.