history of radio

By roblesdeangelo1

  • first radio signal

    the first radio signal was received in 1895 . It was received by an Italian inventor named Marconi .He also sent the first radio signal . The first radio signals were attempted to be sent across the Atlantic Ocean .

  • AM waves

    Amplitude modulation / Am . 535 KHz - 1605 Khz .

  • Audion tube

    In 1906 , Lee Dee Forest created the Audion tube . Its believed that a Canadian inventor named Reginald Fesseden came up with the idea . Fesseden never made the product though.

  • call letters

    W is east of the Mississippi river . K is west of the Mississippi river . Most television shows and radio stations are given a call letter. The letters " N " and " A " were given to military stations . The United States were given the letter's " K " , " W " , " N" , 'A"

  • radio's impact on the Titanic

    If the titanic didn't have a radio they wouldn't have been able to inform the people on land that they were sinking and far more lives would have been lost . The sailor was able to inform people that they were sinking so they were able to go over there and save anybody they could .

  • radio stations

    first station was named 8xk later named KDKA .Still exists today in Pittsburgh , Pennsylvania .

  • The dawn of Advertising

    In 1922 WEAF aired a 10 minute commercial or toll broadcast for an Apartment complex charging 50$ . Radio station's make most of their money for commercials as well as television shows .

  • establishment of FRC

    The station Uncle Charlie became too popular so they established the FRC . The FRC organizes the licensing of the transmitters . Assigning radio signals call letters and power limits .

  • Golden Era

    The 30's and 40's . Middle of The Great Depression . People wanted entertainment .

  • FM waves

    Frequently Modulation . 88-108 MHz .

  • Radio's Demise

    TV makes appearance in the late 30's . As popularity grew advertisers went to television . Radio stations lost money and jumped ship .

  • Music

    At this time you had very few options to listen to . For example jukeboxes , records , live concerts . Music on the radio filled a void .

  • Radios progression

    Major Edwin Armstrong invented the Fm transmitter , which made for stronger signal and higher quality sound .Talk on Am . Music on Fm.

  • Family medium

    Big band music / story hour / situational comedies / dramas . The Family Medium was a radio broadcast that was aired for the whole family .

  • radio vs ,music apps now

    radio does need WiFi or cellular data but it does require a cellular tower . Music apps now for insistence Pandora can stream far more music and stations than the radio can . Also the radio choses the music but the apps now allow the user to choose the music they listen too