radio history

By Braaay._

  • Marconi

    Marconi
    He was a Italian inventor
    He sent and received the first radio signal.

  • Audion tube

    Audion tube
    In 1906 Lee De Forest created the Audion tube which was a vacuum tube that amplified signals.

  • Cascade

    Cascade
    In 1913 the cascade tuning radio receiver and heterodyne receiver was introduced.

  • Short wave

    Short wave
    In 1919 the shortwave radio was developed, and the RCA was founded.

  • Shows

    Shows
    In 1928 a radio station in New York city, WRNY begin to broadcast television shows.

  • FM

    FM
    in 1935 fm radio was born, but only in mono.

  • Sounds

    Sounds
    In 1962 the United States radio stations started broadcasting in stereophonic sound.

  • GROW

    GROW
    In 1984 Watts was forced to grow because the FCC would not protect stations under 100 watts anymore.

  • Bash

    In 1986: benefit bash footage was created

  • SHUT-down

    SHUT-down
    In 1987 WJJX was shut down

  • BACK-up

    BACK-up
    In 1988 the WJJX was put back on the radio also RealAudio sports broadcasts, Streaming audio, and productions and concerts had started.

  • fm transmitter

    fm transmitter
    1992: In Paris an experimental digital FM transmitter begins operation.

  • RDS

    RDS
    1993: In the US, FM radio stations begin to use the RDS already in place in Europe.