Salt Lake Telegram | 1934-05-23 | Page 3 | Signal Device Aid to Fliers

SIGNAL DEVICE AID TO FLIERS Visual Interpretations of Range Beacons Given by Instrument WASHINGTON UP UP-A UP A device for visually interpreting signals of aeronautical radio range beacons has been developed by W. W E. E Jackson and L. L M. M Harding radio engineers of the commerce departments department's aeronautics aeronautics tics branch according t to Rex Martin Martin Mar Mar- tin assistant director of aeronautics Signals Martin Marlin explained are received received re reo re- re through headphones by airmen airmen air air- men who reply upon them for guidance guidance guid guide ance during periods of or poor visibility The device features an in indicator cator which fitted in the instrument panel is similar to the contrivance used for blind landings It is open-faced open and has hns two needles one needles one vertical and andone andone andone one horizontal The vertical needle Martin explained explained explained ex ex- ex- ex is chief indicator and when a plane leaves the course defined by bya a radio beacon this needle will move accordingly However he added if the plane is io exactly on course the vertical pointer will remain in center of the dial The horizontal indicator the cial revealed shows the volume of received signals which the pilot may adjust as ashe he sees fit