Film30 min640×480Subtitles

Basic Principles of Frequency Modulation

U.S. War Department, Army Pictorial Service

Industrial and advertising

Clips are not offered for this film: no licence or public-domain mark is recorded for it.

About

Some good shots to be logged Title: "This film will not be shown to the public without permission of the War Department." CU AM/FM radio dial CU violinist in front of radio microphone VS two-way radio being used in combat Many great chalk talks, diagrams, animation showing technical aspects of radio transmission

Archive
Internet Archive, in Prelinger Archives
Licence or status
The Internet Archive states none for this item.
Credit
U.S. War Department, Army Pictorial Service
Subtitles
Automatic captions
Who can watch
The archive gives no rating. Invisible Network shows it to Teens profiles and older, judged from its collection and subjects. How films are placed