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Marconi
Sent out the first radio signal in 1895. -
Audion Tube
Makes speekers sound better by sending a signal to them. -
Dawn Of advertising
The WEAF aired a 10 minute commercial or tall broadcast -
Fist Radio Stastion
AXK later named KDKA in 1920, the first station to receive a advetising licence -
Uncle Charlie
Personal radio station established FRC in 1927 -
Call Letters
W is east of the Mississippi River
K is west of the Mississippi River
is used to reach and identify them
