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first signal
Guglielmo Marconi sent and recieved the first radio signal -
audion tube
lee de forest created an audion tube (aka amplifier) -
its raining
us weather bureau tries radio to warn about weather changes (storn is coming, etc) -
north pole
robert e peary, arctic explorer, called in saying "i found the pole" -
fm radio
edward howard armstrong invented requncy modulated in 1933 -
transistor
bell labs scientists created a transistor -
transistor radio
the transistor radio was created by a company known as sony (they were a rather small company back then) -
the antenna
the first master fm antenna system was uaed by putting it on the empire state building -
fcc relocation
chanels 70-83 were relocated by the FCC for mobile radio services -
the beginning of the cell phone
the fcc allowed the spread spectrum, causing the advancment towards monern commercial cellular -
digital mobile services
spectrum of 2GHz was reallocated by the fcc for emerging digital mobile services -
qualcomm
qualcomm commerically launched the first cellular system using digital CDMA technology