Cover of Volume 2, No

Cover of Volume 2, No. 6, of the Army Air Forces Weather Service Bulletin. Tracking a pilot balloon with a bedspring radio direction finder SCR-658 used for determining winds aloft. The observer is able to follow a free balloon-trans mitter very accurately by adjusting the azimuth and elevation of the “bedspring antennae.

Photo Date: 1944 December

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Author: Headquarters Weather Wing Army Air Forces; Courtesy of the family of Nels Johnson, United States Weather Bureau (dec.)/ NOAA

License: Public Domain Mark 1.0 (Public domain)

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