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the beginning
Guglielmo Marconi was experimenting with electrical signals in 1895 when he successfully sent the first signal over one and a half miles. in 1896, he was granted a patent for his invention. Marconi gave a succesful demonstration of his device by sending signals a distance of 12 miles, and later, allowed communication between England and France. In 1901, the first over-seas radio transmission was made. -
audio tube
The audio tube was created by Lee De Forest in 1906. The audio tube was built on the invention of a light bulb (Created by Thomas Edison) and the Fleming valve (by John Fleming). The invention is mainly used to detect/receive codes/voice messages. -
Call Letters
A call sign is something that seperates one radio frequency from the rest. In America, they're used to name radio stations. -
Radio's Effect On The Titanic
Many people don't take the radio's impact on the titanic into consideration. Many people's lives were saved, because the radio broadcasts successfully transmitted S.O.S. signals to other cruise lines. If the radio had not been something on the infamous ship, it would have been nearly impossible to give distress signals and grab the attention of other ships. -
Radio Stations
The first radio station was established by Frank Conrad (an electrical engineer and pioneer broaadcaster) in 1920 under the title 8xK. Frank is widely known as 'The Father Of Radio'.
The station was later renamed KDKA(1020), and broadcasts in Pennsylvania. -
AM + FM waves
AM (standing for amplitude modulation) ways are another way to track the frequency of a wave/how quickly they are passing. in the 1920's, AM waves were used for ameature broadcasters, but today, in many countries, AM frequencies are used to air news broadcasts and FM frequencies play music. -
Uncle Charlie Radio
'Uncle Charlie Radio' is a term used to reference the times when radio had been new, and widely popular. people soon discovered it was a simple process of setting up a station in their basement to put their voice on air. the idea grew to be so popular, one person could broadcast, and suddenly be drowned out by someone on the same frequency. the people soon discovered that by putting more power into their equipment, their frequencies would be more difficult to take over, causing a power struggle. -
Radio Advertising
John McDonough paid the New York radio station WEAF to promote the Hawthorne Court Apartments in Jackson Height. The commercial lasted a total of 10 minutes. -
Golden Era
When the United States was struck with (what we call today) The Great Depression, Radio stations couldn't claim to know any of it. This was The Golden Era of radio. While family's struggled at home with money, or lack there of, they could switch on the radio and enjoy a special family gathering rather than worrying about their dip into poverty. -
Radio Take Down
In the late 1930's, TeleVision became the new swingin' thing. Family's could gateher around and listen to their favorite shows, while having pictures moving across the screen. Advertisers caught onto this as well, and started taking their business to the tube.
