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Marconi
Italian inventor, that sent and recieved first radio signal. -
Radio's 1st Broadcast provides to ships
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Audion tube
Lee De forest created or ('borrowed") the idea for audion tube. -
Reginald Fessenden sent out a program of music and speech
He also developed the first sphisticated radio transmitter -
Airplane
1st transmission from an Airplane -
KDKA
1st Radio Station Created by Frank Conrad, still around today! -
Commercial
WEAF aired the first 10 minute commercial for an apartment complex at the cos of $50 -
stations
there were 28 stations in operation; by 1924, there were 1,400. -
Number of broadcasts
The number of personal radio broadcasts soared from 30 in 1922 to 556 -
FRC
FRC (Federal Radio Commision) was established to control radio airwaves and etc. -
Frequency Modulation
Edwin Howard Armstrong created FM, improving audio frequency -
Amplitude Modulation
Shorter version is AM -
Elvis Presley
the birthday of him -
Demi lovato
birthday -
Austin mahone
the day austin mahone was born
