File:Detail of the underground wire net mat and cable at the base of a 94' low-band reflector screen pole, view facing north - U.S. Naval Base, Pearl Harbor, Naval Radio Station, AF-FRD-10 HABS HI-522-B-15.tif

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Summary

Photographer
Franzen, David
Title
Detail of the underground wire net mat and cable at the base of a 94' low-band reflector screen pole, view facing north - U.S. Naval Base, Pearl Harbor, Naval Radio Station, AF-FRD-10 Circularly Disposed Antenna Array, Wahiawa, Honolulu County, HI
Depicted place Hawaii; Honolulu County; Wahiawa
Date 2006
Dimensions 4 x 5 in.
Current location
Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA http://hdl.loc.gov/loc.pnp/pp.print
Accession number
HABS HI-522-B-15
Credit line
This file comes from the Historic American Buildings Survey (HABS), Historic American Engineering Record (HAER) or Historic American Landscapes Survey (HALS). These are programs of the National Park Service established for the purpose of documenting historic places. Records consist of measured drawings, archival photographs, and written reports.

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.

Notes
  • Significance: The AN/FRD-10 Circularly Disposed Antenna Array (CDAA) at NCTAMS (Facility 314) was a part of the US' Cold War efforts to gather foreign intelligence information. Along with fourteen other FRD-10 CDAAs worldwide, it was part of the Naval Security Group's Classic collection and transmitter locating. This CDAA technology, designed by the Naval Research Laboratory and deployed as the FRD-10, was a radical improvement in the performance of high-frequency direction finding. Its design is the Navy's adaptation of an antenna system using monpole and dipole elements uniformly spaced outside the rings of reflector screens. This, the system is able to intercept and detect the direction of high-frequency radio transmissions covering 360 degrees.
  • Unprocessed Field note material exists for this structure: N1123
  • Survey number: HABS HI-522-B
  • Building/structure dates: 1962 Initial Construction
Source https://www.loc.gov/pictures/item/hi0821.photos.225734p
Permission
(Reusing this file)
Public domain This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information.
Object location21° 30′ 10.01″ N, 158° 01′ 25″ W Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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coordinates of the point of view

21°30'10.01"N, 158°1'25.00"W

coordinates of depicted place

21°30'10.01"N, 158°1'25.00"W

File history

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Date/TimeThumbnailDimensionsUserComment
current01:16, 13 July 2014Thumbnail for version as of 01:16, 13 July 20145,508 × 4,346 (22.83 MB)FæGWToolset: Creating mediafile for Fæ. HABS 11 July 2014 (1001:1200)
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