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Radio Created
An Italian inventor, Marconi, sent and received 1st radio signal. Marconi built his own wave generating equipment. the italian government was not interested in his work so he took it to London where they gave intrest -
Audion Tube Created
Lee Dee Forest created (borrowed the idea) / originally Reginald Fessende's idea) the audion tube, an amplifier which created better sounding radio. It also made use for a detecor of radio signals and oscillator for transmitting -
1st Radio Station
though it got its license in October, they played in November, KDKA was created by Frank Conrad. It was created in Pittsburg, Pennsylvania. It did not broadcast daily until 1921, but it still plays today. -
"Uncle Charlie"
"Uncle Charlies" were personalized radio stations. This caused problems for radio by messing up the radio signals. for example if you wanted to listen to one station another might get in the way -
First Radio Advertisement
WEAF aired a 10 minute 'comercial' for an apartment. the broadcast cost $50 compared to the $500 per week today. this helped radio make money. -
FRC Established
The Federal Radio Commission was created to organize the listening of transmitters , assign radio station frequency, and call letters. This stopped "Uncle Charlies'" (random radio stations everywhere). This allowed for convenience of the listeners . -
TV Makes Appearance
TV was created which made for tension in the radio business. this made radio stains lose listeners and made them have to improvise on what to do next -
Modulation Waves
Modulation waves is the process of varying one or more properties of a periodic waveform. AM waves had 535-1605KHz wave. FM had 88-108MHz waves -
Call Letters Established
Call Letters allowed for organization of radio stations. If a radio station was East of the Mississippi they received a 'W'. If a station was West of the Mississippi they received a 'K'. -
Radio and the Great Depression
Durring the Great Depression the country was at a low point but radio helped. radio allowed for families to become close and have a comfort. Radio also provided an escape for them -
Radio and Shows
Radio played shows about many things. These shows were usually family friendly and brought families closer together -
FM Transmitter Created
Major Edwin Armstrong created the FM Transmitter. The FM transmitter created a stronger signal and high quality sound, creating FM radio -
Radio Plays Music
Since the creation of TVs radio turned to music. this created a difference for FM radio and AM radio. FM played music while AM had talk. -
Music
Once the 1st music app came out it became a competition. Once the first music app came out (Napster) Radio had to figure something out quick -
Radio Today
Radio today consists of mostly music and advertisements. Although they mostly do that they still report news, weather, and traffic reports as well. All this helps keep radio alive today.
