File:IFF display on A-scope.jpg

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DescriptionIFF display on A-scope.jpg	English: This image shows two sample displays from a typical radar or the WWII era. The top image shows a normal radar return, with the range extended to the right. The leftover signal from the transmitter on the left side blanks out any local signals, and in this example there are two strong returns from more distant aircraft. The lower image shows the same returns but with the addition of an IFF Mark III on the closer of the two aircraft. This signal is received separately from the radar return, amplified, inverted, and then mixed with the radar signal. The result is that the "blip" goes below zero for those aircraft displaying IFF.
Date	1943
Source	TM 11-1133, Technical Manual, Radio Equipment RC-192-A, 1943
Author	US Army Air Force

	This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
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	Date/Time	Thumbnail	Dimensions	User	Comment
current	01:57, 28 December 2017		600 × 326 (34 KB)	Maury Markowitz (talk \| contribs)	User created page with UploadWizard

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