Radio broadcast .. by Unknown

Author:Unknown
Language: eng
Format: epub
Tags: Radio -- Periodicals. [from old catalog]
Publisher: Garden City, N.Y., Doubleday, Page & company [etc.]

HE remote control of different devices by the use of radio waves has frequently brought forth spectacular articles in the press; the explanations given are generally entirely inadequate and worded in such a way that the action is made to appear much more mysterious than it really is. A technical description

of the schemes customarily used in controlling torpedoes, vessels, free automobiles, etc. is well outlined in a short article by F. W. Dun-more of the Bureau of Standards, published in the Proceedings of the spring convention of the American Institute of Electrical Engineers. Circuit diagrams as well as illustrations of actual distant control

relays are given, together with an easily understood explanation of the operation of the apparatus for cases where batteries only are available and when alternating current supply is the source from which the tube circuit must be actuated.

Using just the schemes described here, it would evidently be possible to accomplish almost any reasonable operation by the use of radio waves; the distant control of a warship under way, being used for target fire, or the gyrations of the driverless automobile become easy to understand. Wireless transmission of pictures or simultaneity of several distant and apparently unrelated events are not only possible but are comparatively easy of accomplishment with apparatus such as described in this paper.

J. H. M.

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