Radio History

By LejlaC
  • 1st Detection of Radio Waves

    Heinrich Hertz was a german physicist. He detected and produced radio waves. He made the development of radio possible.
  • 1st Radio Signal

    Marconi sent and received the first radio signal. He may not have been the first but had good public relations so he was widely accepted as the first. He was an inventor from Italy.
  • 1st International Radio Connection

    Marconi was an italian inventor. He established the first radio link between England and France.
  • 1st Transmission of Human Speech

    American scientist R.A. Fessenden transmists human speech via radiowaves. He was also a canadian inventor. He performed pioneering experiments in radio.
  • 1st Audion Tube

    Lee de Forest was accepted as the creator of the 1st audion tube. This is a vacuum tube that amplifies signals. It helped make signals stronger and go farther.
  • 1st Radio Program

    P.A. Fessenden created the first radio program of voice and music broadcast in the U.S. This was a very important step in the progression of radio. It also opened doors for other broadcasters.
  • New Step in Generation of High Frequencies

    Fessenden invents a high-frequency electric generator. This produces radio waves with a frequency of 100 kHz. Led the way to improving radio technology.
  • 1st Radio Station

    The first radio station was named 8KX but now it is called KDKA. Frank Conrad was the owner and operator. The station is still out today and broadcasts out of Pittsburg, Pennsylvania.
  • 1st Music onRadio

    A canadian scientist decided one night around Christmas to put a phonograph in front of the mike. This is how we learned that music could be played over the radio. He called this a "wireless concert".
  • 1st Commercial on Radio

    The first commercial aired on WEAF. It was a ten minute commercial, or toll broadcast, for an apartment complex. This was how radios began to profit.
  • 1st Radio Organization

    Uncle Charlie's (radio stations operated by people from home) became too popular and made the radio to cluttered so they established the FRC. This organized the licensing of transmitters and assigned radio station frequencies, call letters, and power limits. Later became the FCC.
  • Golden Era

    The Golden Era of radio was when radio was used and enjoyed by eveyone. This era was in the 30's and 40's. At the time there was the Great Depression and a war going on so radio provided an escape for people. Families enjoyed the radio together.
  • Music Lessons on the Radio

    The UM School of Music pursues the idea of radio as education. It taught school band lessons via radio. Wanted to teach music to many people at once.
  • 1st FM Transmitter

    Major Edwin Armstrong invented this device for the military. it produced a stronger signal and higher quality sound. Listeners had to buy new radio sets, but the quality was better which is why music is played on FM and talk is on AM.
  • Music Appeared

    TV made an appearance in the late 30's and advertisers went there. Radio lost money so they went to music. Because music was so hard to come by so it filled a void or people and radio stayed alive.