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Hans
In the year 1820 Hans Christian discovered that there was a relationship between electricity and magnetism. He conducted an experiment with a wirethat carried a current was able to deflect a magnetized compass needle -
titanic
The titanic used a radio. If they hadnt then all of the people would have died. Luckily not all did. -
Use of radio
All U.S. radio stations not needed by the government are closed as WWI begins. Sometimes the enemy could pick up a signal from the use of a radio -
The Dawn Of advertising
Radio made is money by having broadcast aired for apartments for $50. -
FRC
Was Established in 1927 and it organized licensing of transmittors and assigned radio stations frequencies, call letters and power limits -
Golden Era
By the 1930s the golden era had become the turn of the century. Mickey Mouse was first drawn and radios had become very popular -
Cellular Radio
Cellular radio telephony, with call handoff and frequency reuse, was conceived at Bell Laboratories. -
Fcc
The FCC reallocated TV channels 70-83 for mobile radio services. Which Happened to play a big role in the involvment of technology -
Music Event 1
By the 1980s the record; also known as gramophone, had been a method used to listen to music on. -
FCC Strikes again!
The FCC permitted spread spectrum, the technology of choice for many of today’s digital, commercial cellular and PCS services. -
Music Event 2
In 1996 The USA patent issued Mp3 players. -
AM WAVES
Am waves measure the amplitude modulation -
Fm Waves
Fm Waves measure the Frequency Modulation -
Family Medium
the entire family can enjoy a radio. -
Musical Event 3
iPhones Were made with a radio. They can use hundreds of different stations to isten to any kind of music
