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marconi
italain inventor. sent and received 1st radio signal in 1895. people are not sure if he was the 1st or it was a good case of pr -
lee de forest
lee de forest created the audion tube. atube that amplified signal
a canadian man also made it but did not make history with it -
the radio on ships
the radio made it was on to ships later on. it helps shipd out because at sea there are no lines they could use to talk. it helpec out people on the titanic because without it every one would have died -
radio stations
radio stations were made in 1920. 8xk was changed to kdka. it is still on now in pittsburg, pennsylvania -
the dawn of advertising
radio stations make money by playing commercials. in 1922 weaf aired a 10min commercial for $50 -
frc
frc orgainized the licensing of transmitters assigning radio station frquencies, call letters, and power limits. was because ''uncle charlie'' was too popular -
call letters
w is east of the mississippi river. k is west of the mississppi river -
am waves
amplitude modulation 535 khz- 1605 khz -
fm waves
frequency modulation 88- 108 mhz -
family medium
the whole family can enjoy together. they came listen to music. they came listen to comdies and dramas -
golden era
the 30s and 40s middle of the great depression - people were needing money -
famous shows of the golden era
some of the great shows were gunsmoke.superman was a good one .and last the shadow -
elvis presley
elvis presly is the king of rock and roll.alot of people listened to him. people gave himthe name the king -
edgefest
edge fest is an event in dallas that plays music. this event takes place in dallas. they play all types of music -
i heart radio
i heart radio plays all types of music. they can
