Radio History

  • Hertz discovers radio waves

    Hertz discovers radio waves
    Hertz did a series of experimeants to prove radio waves. he proved it existed mathmatically, He discoverd many radio properties and is very much credited for the making of the radio.
  • Marconi

    Marconi
    Marconi was the first who supposedly invented the radio. He sent a radio signal of 2.4 kilometers. He was awarded the nobel prize.
  • Titanic

    Titanic
    The radio was used on ocean vessles and ships and became more widespread. When the titanic sunk the transmissions save alot of lives. Radio had then become more popular.
  • AM (Amplitude Modulation)

    AM (Amplitude Modulation)
    Ever seen AM on your radio before? Well it stands for amplitude modulation and it changes the height of radio waves. This is only used for talking cause FM has better sound quality.
  • First Radio Station

    First Radio Station
    8XK was the first ever radio sation created. The name was later changed to be KDKA, and it is still used in pennsylvania. Frank Conrad was the creator.
  • Uncle charlies

    Uncle charlies
    Another named used for independent radio stations. anyone with the money and equipment for a station could create one. Broadcasting became a problem later on in time.
  • Federal Radio Comission

    Federal Radio Comission
    This was a governmeant body created due to alot of personal radio stations. advertisers complained because personal radio stations were taking over thier frequencies. They were spending money for nothing.
  • FM Frequency Modulation

    FM Frequency Modulation
    Frequecy modulation is thp other station on your radio thatyo always wonder about. FM is the process of extending and collapsing the distance of the radio. This frequency is only used for music cause of its clarity.
  • Music

    Music
    as Major Edwin Armstrong made the FM radio, Music beacme the savior of radio. Radio began to play music on FM radio waves. Music became essential for the survival of radio.
  • Transistor

    Transistor
    The transistor was a powerful tool used to amplify frequencies as well as change them. This invention changed televistion and radio forever. John Bardeen, Walter Brattain, and William Shockley all participated in the creation of the transistor.