MAR_radar_concept_sketch.jpg
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Summary
| Description |
English:
Bell Labs described the new Multi-function Array Radar in a 1962 edition of their internal journal. The image shows a system with two "faces", each providing coverage over about 150 degrees in azimuth. The smaller domes are the transmitters, while the receivers shared the central dome. The image appears to show construction on two additional faces underway, or ongoing construction on the underground building that hosted the enormous computer systems and power generators needed to run it.
The original testbed system, sometimes known as MAR-I, was built in almost exactly this form at White Sands Missile Range in New Mexico. MAR-I was built for two faces, as in this image, but only one was installed. The only major differences between this image and MAR-I was built is that the transmitter domes are smaller, moved closer to the main receiver dome, and moved in relationship to the receiver. In this image if one stands in front of the receiver facing outward, the transmitter is on the right. MAR-I moved the transmitter to the left.
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| Date | |
| Source | https://www.flickr.com/photos/internetarchivebookimages/14569329089/in/photolist-ocrA4D-otWa1V-ocrBX8/ |
| Author | Bell Labs |
Licensing
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This work is in the
public domain
in the United States because it was
published
in the United States between 1929 and 1977, inclusive,
without a
copyright notice
. For further explanation, see
Commons:Hirtle chart
as well as a
detailed definition
of "publication" for public art. Note that it may still be copyrighted in jurisdictions that do not apply the
rule of the shorter term
for US works (depending on the date of the author's death), such as Canada (50
p.m.a.
), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.
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