History radio

History of Radio

By janaymos
  • Marconi

    Marconi

    Marconi was an Italian inventor. He sent and recieved the frist radio signal. In 1995 he was the first person or belived to be to use the radio.
  • Audion Tube

    Audion Tube

    Belived to have been created by Lee De Forest. Is a vacuum tube that that amiplifies signals. Rumored to have been invented by Reginal Fessenden.
  • The Titanic

    The Titanic

    On the titanic, theere was no communication on water. They used marine type signal to depict their location.
  • Call Letters

    Call Letters

    Call letters, also known as call signs, are unique designated for a transmitting station. W was for east of the Mississippi River, K was for the east.
  • Radio Stations

    Radio Stations

    KDKA was the first radio station. It was known as 8XK, later and was later renamed KDKA. Still around today in Pittsbur, Pennsylvania.
  • Uncle Charlie

    Uncle Charlie

    Was another term for a personal radio station. You could listen if you had your own radio.
  • Dawn of Advertising

    Dawn of Advertising

    In 1922 WEAF broadcasted a 10 minute commercial about an apartment that charged $50. This is how radio made money.
  • AM Waves

    AM Waves

    Also known as Amplitude Modulation. Consisted of 535 KHz to 160 KHz
  • FM Waves

    FM Waves

    Stands for Frequency Modulation. Consists of 88 KHz to 108 KHz
  • FRC

    FRC

    Uncle Charlie was extremely popular, so the Federal Radio Commission was born. It organzed the licensing of transmitters
  • The Golden Era

    The Golden Era

    Was in the 1930's and 40's. Was in the Middle of the Great Depression. Was the time where people where extremely desperate for money.
  • Radio's Demise

    Radio's Demise

    This is the point in which the TV makes an appeareance. TV became extremely popular and advertisers went into the teleision business, making Radio lose money. "TV will do to Radio what the car did to the horses."
  • Mary Lou Williams

    Mary Lou Williams

    Was a jazz pianist, singer, and composer. She was extremely popular in the Harlem Renassiance. Her music impacted the radio business.
  • Radio's Success and Elvis

    Radio's Success and Elvis

    Radio made a comeback by using music. Music allowed people to use radios to listen to music. Elvis created an oppotunity for radio. His music was extremely popular giving radio the chance to broadcast his music to all of those willing to listen.
  • The Righteous Brothers

    The Righteous Brothers

    The Righteous Brothers were a duo of Bill Medley and Hatfield. The created beautiful music from 1965 to 1973 and continued to perfrom until Bobby Hatfield's death in 2003.