Invention of Radio Technology

Radio technology began as wireless telegraphy. This invention didn’t happen all of a sudden. The discovery of radio waves actually set the platform for the invention of radio. It all started with the discovery of radio waves- electromagnetic waves that have the capacity to transmit music, speech, pictures, and other data invisibly through the air.
Radio wasn’t invented by any single person but instead was a combination of several scientists research each of whom pioneered a different area of electromagnetic radiation and radio waves during the late 1800s and early 1900s. Among these men are well known researchers that took part in the Invention of radio Technology such as Heinrich Rudolf Hertz, James Clerk Maxwell, David E. Hughes, Thomas Edison, and Nikola Tesha and much more others took a part in this invention.
In 1800s, a physicist from Scotland had predicted radio waves then after this another physicist from Germany actually proved the existence of radio waves. He showed that waves are same as light or heat waves. Then, the invention of telegraphy with wireless technology took place.
In 1860s James Clerk Maxwell predicted the existence of radio waves, Heinrich Hertz demonstrated the rapid variations of electric current could be projected into space in the form of radio waves similar to light and heat. In 1866 Mahlon Loomis an American dentist successfully demonstrated wireless telegraphy Loomis was able to make a meter connect to a kite and make another to move would be wireless aerial communication.
Guglielmo Marconu an Italian inventor sent and received his first radio signal in Italy in 1895, by 1899 he flashed the first wireless signal across the English Channel and 2 years later received the letter S telegraphed from England to Newfoundland this was the first successful transatlantic radio telegraph message in 1902.
Lee-Deforest invented space telegraphy, the triode amplifiers and the Audion, Lee-Deforest provided that detector. It made it possible to amplify the radio frequency signal picked up by the antenna before application to the receiver detector. De-Forest was also the person who first used the word “radio”. As a result Lee-Deforest work was the invention of amplitude- modulated or AM radio that allowed for a multitude of radio stations which the earlier spark gap transmitters didn’t allow.
Edwin Howard Armstrong invented frequency-modulated or FM radio by controlling the noise static caused by electrical equipment and the earths atmosphere. Until 1936, all American transatlantic telephone communication had to be routed through England. In that year a direct radio telephone circuit was opened to Paris. Telephone connection by radio and cable is now accessible with 187 foreign points. Radio Technology has grown significantly since its early development. In 1954, a small Japanese company called Sony introduced the transistor radio.
In 1965 the first Master FM Antenna system in the world designed to allow individual FM stations to broadcast simultaneously from one source was created on the Empire State Building in NYC.
Walkie talkies, also known as handheld radios are, as the name suggests, a portable two-way radio transceiver. The technology was developed in the Second World War and can still be found today throughout businesses and emergency services. Old military radios are collectors items for many military memorabilia fanatics. A popular older model of military radio is the AN/PRC-77 portable radio. This radio was a popular, highly dependable man-pack and vehicle-mounted radio that was used by the U.S. military in 1968 during the height of the Vietnam war. The AN/PRC-77 replaced the earlier model AN/PRC-25 and since then has been replaced due to the advent of digital technology with the radio system known as SINCGARS (Single Channel Ground and Air Radio System). The AN/PRC-77 is a very simple radio to put together and use for most VHF FM channels.
The word radio itself for many portray the images of the 'wireless' world that we have now. Radio is still in use today, but with less popularity than in its primetime, with all the other forms of media that are now so predominant. Originally all broadcasts came via and AM. AM is Amplitude modulation. Later broadcasts developed into FM which had a higher level of fidelity and was not susceptible to the same levels of static, or interference. Radio is also used in other extents that many people might not think of. Examples of this would be in surgery where people can find radio being used to seal blood vessels using diathermy equipment. It's also used to heat up food and drinks in a microwave oven. A household telephone and more recently cordless telephones use a radio signal from the base to the handset to transmit data from incoming calls. Cordless phones have an advantage over mobile phones when used in the home because they will remain charged (provided that the handset is returned to the base when needed) and will not lose signal since they are directly connected to your landline.

The Invention of radio technology is definitely a great milestone in the history of America. This invention enabled us to listen to the news was conveyed on the radio was completely different from that printed in the daily newspaper. Radio was a huge step in the field of technology; the sound that you hear coming out your radio speakers is mainly due to the transmission of radio signals, this invention made it easy for a common person to hear the world news. This is a significant invention that had an impact on the world that was used by the military, TV companies, government, radio stations, telephone companies, everyday peoples and much more. By inventing a technology such as this our nation will stay up to date on all things.

Sources:
Inventors.about.com/od/rstartinventions/a/radio.htm
Earlyradiohistory.us
En.wikipedia.org.wiki/history_of_radio