Radar_antennas_on_USS_Theodore_Roosevelt_SPS-64.jpg (533 × 562 pixels, file size: 157 KB, MIME type: image/jpeg)

Summary

Description
English: AN/SPS-46(V)9 radar antenna on the USS Theodore Roosevelt aircraft carrier. This is an X-band (8-12 GHz) marine navigational radar similar to types on civilian ships, used to detect other ships in the vicinity. It has a peak power of 7 kW, a range of somewhere around 35 nautical miles. This type of antenna is called a slot antenna and radiates a narrow vertical fan-shaped beam of microwaves, about 15° high and 2.2° wide. A motor in the housing below rotates the bar-shaped antenna to scan the beam around the horizon.
Source http://www.navy.mil/view_photos_top.asp
Author U.S. Navy

Licensing

Public domain
This file is a work of a sailor or employee of the U.S. Navy, 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.
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.

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AN/SPS-64

copyright status

public domain

applies to jurisdiction: United States
determination method or standard: work of the federal government of the United States

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current11:23, 30 December 2007Thumbnail for version as of 11:23, 30 December 2007533 × 562 (157 KB)Nova13{{Information |Description=AN/SPS-46(V)9 Radar |Source=http://www.navy.mil/view_photos_top.asp |Date= |Author= |Permission= |other_versions= }}

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