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Marconi
Marconi is knwn to be the first person to ever send out a radio signal. This may not be true, but its the first one recorded. He didnt send out a voice or music he only sent out a litttle beep. -
Transalantic
Marconi conducts the first transatlantic radio communication -
Ship
This was the day he first ship to shore broadcast was achieved! This was achieved in Ohio. -
The Audion Tube was created
Created by Lee De Forest. The Audion Tube allowed signals to go farther by amplifying them. We still use this basically but its more advanced. -
Reginald Fessenden
He sent out a program of music and speech! He also developed the first sphisticated radio transmitter. It made radio sound way better. -
Airplane
The first transmission from the ground to an airplane was achieved.This was a very important for the future. -
KDKA
1st Radio Station Created! IT was created by Frank Conrad. The station is still airing! -
Commercial
WEAF aired the first 10 minute commercial for an apartment complex. It costed only $50! Now commercials cost up to millions! -
Number of Broadcasts
The number of personal radio broadcasts soared from 30 in 1922 to 556!! That was later put to rest by the FRC -
FRC
FRC (Federal Radio Commision) was established to control radio airwaves and etc. It later went on to be named the FCC -
Frequency Modulation
Edwin Howard Armstrong created FM, improving audio frequency! Now it is played with music tobenefit the sound, -
Amplitude Modulation
Amplitude Modulation is also known as AM. IT changes the length of the wave! Talk radio is on AM -
Transistor
Regency introduces the pocket ransistor radio!