The NFB is committed to respecting your privacy

We use cookies to ensure that our site works efficiently, as well as for advertising purposes.

If you do not wish to have your information used in this way, you can modify your browser settings before continuing your visit.

Learn more
Skip to content Accessibility

Radio Technology and Radar (3)

  • Bandwidth
    Bandwidth
    René Jodoin 1960 11 min
    This film combines colour, animation and sound to clarify principles of radio wave transmission. It illustrates how antennas propagate radio waves and how they may be adapted to increase the bandwidth of transmissions. (The film was released for general use as a public service by the Royal Canadian Air Force.)
  • Directivity
    Directivity
    René Jodoin 1960 12 min
    Combining colour, animation and sound to clarify principles of radio-wave transmission, this film illustrates how antennas propagate radio waves and how they may be adapted to increase the directivity of transmissions. The theoretical concepts are emphasized.
  • Propagation
    Propagation
    René Jodoin 1960 13 min
    Combining colour, animation and sound to clarify principles of radio-wave transmission, this film illustrate how antennas propagate radio waves.