File:SCR-271-D-600.jpg

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Original file ‎(2,141 × 2,648 pixels, file size: 2.13 MB, MIME type: image/jpeg)

Captions

English

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Description

English: Original Caption: Radio set SR-271-D at Evans Signal laboratory show shelter for components and operating personnel, 100 foot tower, and antennae modified for PPI display. IFF antenna is shown top center on radar antenna.

This is the non portable version of the SR-270 which was otherwise identical in capabilities and equipment to the SR-270.

alteration- this version has a border cropped which credits the photo to Lieutenant Zahl. Original at the above location.
This photo is credited to First Lieutenant Harold Zahl, who pioneered Radar use by the Army air corps. The photo appears in a paper by him from the period.
these photos would not have been saved were it not for Dr. Howard W. Andrews, who had the foresight to preserve them along with Lieutenant (Dr.) Zahl's papers for posterity. Credit and thanks to H.W. Andrews for preseving these photos.

Source

http://www.monmouth.army.mil/historian/photolist.php?fname=Radio%2FSCR+270+and+271

Author

Harold Zahl

Permission
(Reusing this file)

This file is a work of a U.S. Army soldier or employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, it is in the public domain in the United States.

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File history

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	Date/Time	Dimensions	User	Comment
current	18:25, 27 November 2012	2,141 × 2,648 (2.13 MB)	Hohum (talk \| contribs)	Cropped border, cleanup, levels
	02:31, 9 September 2006	2,148 × 2,648 (1.16 MB)	Makthorpe (talk \| contribs)
	09:54, 8 September 2006	2,148 × 2,648 (1.13 MB)	Makthorpe (talk \| contribs)	{{en\| Original Caption: Radio set SR-271-D at Evans Signal laboratory show shelter for components and operating personnel, 100 foot tower, and antennae modified for PPI display. IFF antenna is shown top center on radar antenna. *This is the non portable