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Guglielmo Macroni
Guglielmo Marconi, an italian sent and received the first radio signal in 1895 -
Audion Tube
1906 Lee de forest, created the audion tube a vacum that amplified signals -
First Radio station
in 1920, 8xk later named Kdka.Frank conrad first broadcasted licensed in pittsburg, Pennsylvania -
Uncle Charlie
Personal radio stations making money off advertising. Aired 10 minute commercial charging $50 -
Call letters
Call Letters were issued to radio stations. W is east of the mississippi river and K is wet of the Mississippi river identify stations why we use call letters. -
FRC ( now known as FCC)
Uncle charlie was to popular -
FCC
Frc was established in 1927, organized licensing of transmitters -
FM waves
Fm was invented by Edwin Armstrong, Frequency Modulation is the change in frequency. -
musical events
Your Hit Parade is broadcast for the first time on radio -
Radio' s being sold
22 american homes had radios and cars sold with radios -
The Golden Era
Everybody listened to the radio and radio provided an escape to people. -
Radio Reporting
pearl harbor attack is reported by radio -
broadcast radio
Music variety show Uncle Walter's Doghouse is broadcast for the last time on NBC radi -
Shows of the Golden Era
Amos n Andy, Gunsmoke, The Shadow -
early 1960s
All talk radio programming become popular
