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Marconi
Sent and received the first radio signal -
First Audion Tube
Created by Lee De Forest the Audion tube can amplify radio signals -
First Radio Station
Created By Frank Conrad Its Was called 8xk then later renamed KDKA -
The Dawn Of Advertising
the First commercial was 10 min long and costed $50 -
The Establishment of FRC
Started when Uncle Charlie stations started getting popular -
Golden Era
Middle Of the Great Depression -
Call Letters
W is East of the Missisippi River
K is West of the Missippi river -
AM Waves
Amplitude Modulation
535KHz-1605KHz -
FM Frecuency Modulation
88-108MHz
