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<iframe src="https://www.nfb.ca/film/directivity/embed/player/" width="(( width ))" height="(( height ))" frameborder="0" allowfullscreen="true" webkitallowfullscreen="true" mozallowfullscreen="true"></iframe><p style="width:(( width ))px"><a href="https://www.nfb.ca/film/directivity/" target="_blank"><em>Directivity</em></a><span>, </span><a href="https://www.nfb.ca/directors/rene-jodoin/" title="more films by " target="_blank"><span>René Jodoin</span></a><span>, </span><a href="https://www.nfb.ca" target="_blank">provided by the National Film Board of Canada</a></p>

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Directivity

René Jodoin

1960 12 min

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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.

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Details

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.

See also

Technology

Media and Communication

All subjects

Credits

• director
  René Jodoin
  
• producer
  Frank Spiller
  
• executive producer
  Peter Jones
  
• photography
  Douglas Poulter
  
• animation
  Austin Campbell
  
• narrator
  Bill Walker
  

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