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File:ASR-9 Radar Antenna.jpg

ASR-9_Radar_Antenna.jpg ‎(349 × 275 pixels, file size: 67 KB, MIME type: image/jpeg)

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Description
English: The antenna system of an Airport Surveillance Radar-9 with primary radar (parabolic antenna) and secondary radar (rectangular antenna, top). The secondary radar interrogates the transponder on the aircraft, which sends back a coded signal indentifying the craft and giving its altitude.
Source FAA ASR-9/Mode S Service Life Extension Program Photogaller, transfered from English Wikipedia where it was uploaded originally by w:en:User:Dmcdevit
Author Unknown authorUnknown author

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Public domain
This image or file is a work of a Federal Aviation Administration employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain in the United States.

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Original upload log

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date/time username resolution size edit summary
00:53, 4 July 2005 w:en:User:DirectEON 349×275 67 KB Photo of the antenna system of an Airport Surveillance Radar-9 {{PD-USGov-FAA}}
00:50, 4 July 2005 w:en:User:DirectEON 269×195 24 KB Photo of the antenna system of an Airport Surveillance Radar-9 {{PD-USGov-FAA}}

Image description page history

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link date/time username edit summary
http://en.wikipedia.org/w/index.php?title=Image:ASR-9_Radar_Antenna.jpg&redirect=no&oldid=18100669 06:11, 16 September 2007 w:en:User:Dmcdevit
http://en.wikipedia.org/w/index.php?title=Image:ASR-9_Radar_Antenna.jpg&redirect=no&oldid=18100669 00:56, 4 July 2005 w:en:User:DirectEON
http://en.wikipedia.org/w/index.php?title=Image:ASR-9_Radar_Antenna.jpg&redirect=no&oldid=18100359 00:50, 4 July 2005 w:en:User:DirectEON (Photo of the antenna system of an Airport Surveillance Radar-9 {{PD-USGov-FAA}})

File history

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Date/TimeThumbnailDimensionsUserComment
current13:37, 16 September 2007Thumbnail for version as of 13:37, 16 September 2007349 × 275 (67 KB)BetacommandBot (talk | contribs)Transwiki approved by: w:en:User:Dmcdevit This image was copied from wikipedia:en. The original description was: The antenna system of an Airport Surveillance Radar-9 ''Source: FAA ASR-9/Mode S Service Life Extension Program Photogallery'' {{PD-US

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