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Marconi send 1st radio signal
Italian inventor, sent and recieved the first radio signal in 1895 -
R.A Fessenden
American scientist R.A. Fessenden transmists human speech via radiowaves -
Marconi
Marconi invents the directional radio antennae. -
electric generator
Fessenden invents a high-frequency electric generator that produces radio waves with a frequency of 100 kHz. -
cascade-turning radio reciever
The cascade-tuning radio receiver and the heterodyne receiver are introduced. -
KDKA
KDKA broadcasts the first regular licensed radio broadcast out of Pittsburgh, PA. -
television shows
A radio statio in NYC, WRNY begins to broadcast television shows. -
FM radio
FM radio is born, but only in mono. -
The Tv
Television is born. FM is moved from its original home of 42-50 Mhz to 88-108 Mhz to make room for TV -
music station
There are six TV stations in the nation. -
advertising on WCBN-AM
Advertising is accepted on WCBN-AM. -
Warner Bros
Warner bros music group was founded -
radio stations
United States radio stations begin broadcasting in stereophonic sound -
record labels
1017 brick squad recored label was introduce -
IheartRadio
iheart radio was invented
