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who invented rodio?
radio is used since 1895 -Today
marconi invented radio -
audion tube
in 1906 lee di forest created audio tube.the audio tube vacum tube that amplified signal.it is widly belived that a Canadian inventor, fessenden actually came up with this idea but fessenden did't seem to make in into the history bookd for that invention. -
radio station
first it was called 8xk, later renamed KDKAfrank conrad invented radio stationradio station was used for communication and giving people the news. -
uncle charlie
uncle charlie had his own radio station.back then you did't need license to buy radio if you had money you could buy radio.the proble was every one wanted the own radio station. -
how did radio station make money?
they make advertising and the sell them for an apartment complex they charged $50.back then they charge 5 dollar a min now for a superball game they charge obout 3 or 4 million for 30 sec. -
FRC
uncle charlie was too popular.people near uncle charlie paid for another station but uncle charlie signal was interfering so the have FRC.federal communication commission -
AM waves
535 KHz - 1605 KHzamplitude modulation -
golden era's
family meduumthe entire family can enjoy it togetherpeople would buy radio -
family medium
famos shows of the golden era super man
gun smoke
64 dollar question -
call letters
W is East o the Mississippi river
K is west of the mississippi river -
radio's demise
tv makes appearance inthe lare 30's
as popularity grew, Advertisers wnet to tv
radio lost money, radio shows jumped ship -
radio VS .....
pandora
youtube
i tune
spotify
