Collection search - Aural Null : Automatic Radio Compass
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Record information – Brief 
Aural Null : Automatic Radio Compass
Series title:Radio NavigationHierarchical level:Item (Accession level)Date:1957Item number (ISN):42490Type of material:Moving imagesFound in:Archives / Film, Video and Sound -
Record information – Details Fonds/collection:NATIONAL FILM BOARD OF CANADA / OFFICE NATIONAL DU FILM DU CANADA: 1987Accession:1987-0050Media:FilmProduction date:1957Production company:National Film BoardProduction credit:director, Michael Birch; director/animation, René Jodoin; producer, Frank Spiller; executive producer, David Bairstow; photography, John Spotton; Douglas Roberts; sound, Clarke Daprato; animation, Dino RigoloCountry of production:cnSponsor:The Royal Canadian Air ForceDescription:A service training film reviewing the basic theory of the automatic radio compass and showing how adverse atmospheric conditions affect its operation. The use of the aural null procedure permits the pilot to navigate with the aid of radio facilities in the presence of severe electrical interference and makes for safer passage through stormbound areas. <27mn>Language:EnglishNotes:Detailed holdings information: -
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