Made during WWII by the War Department, this official training film describes what frequency modulation (FM) is and how to use it in reference to radio communications. It also provides the comparison between FM and AM radio as far as what advantages FM has over AM. Originally restricted, the film was released for public educational use in 1949. It opens with U.S. soldiers playing ping pong while listening to AM radio (:28). When one of the men begins to use an electric razor, the radio gets...
Topics: 1944, US War Department, Frequency Modulation, FM Radio, Stock Footage, Periscope FIlm