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SLC Mark VI on.jpg

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Summary

Description
English: Members of the 58th Searchlight Battery work on the SLC Mark VI radar on the 150 cm searchlight. The radar worked by sending a signal out of the antenna at the very top (being held) and received on the four antennas below it. By delaying the signals from the four receivers, the sensitive direction of the array as a whole could be directed off-center and then rotated. By watching the return signals as the beam rotated, the direction of the target could be determined. The Mark VI refers to the mounting, not the radar itself, which had several other Marks depending on what it was attached to.

Original description:

EAST PARKLANDS, SA. 1944-09-15. MEMBERS OF THE 58TH SEARCHLIGHT BATTERY CHECK ON ANTI-AIRCRAFT NO. 2 MK 6 RADAR SEARCHLIGHT CONTROL MACHINE. IDENTIFIED PERSONNEL ARE:- SX25566 CAPTAIN A.J. QUALMANN, COMMANDING OFFICER (1); S33219 LIEUTENANT E.K. OMOND, ADJUTANT (2); NX102180 LIEUTENANT F.W. THORNHILL (3); VX106740 SERGEANT C.A. ANDERSON (4).
Date
Source https://www.awm.gov.au/collection/C80049
Author Unknown Austrailian Army photographer

Licensing

Public domain
This image or other work is of Australian origin and is now in the public domain because its term of copyright has expired. According to the Australian Copyright Council (ACC), ACC Information Sheet G023v19 (Duration of copyright) (January 2019).1
Type of materialCopyright has expired if …
 A Photographs or other works published anonymously, under a pseudonym or the creator is unknown: taken or published prior to 1 January 1955
BPhotographs (except A): taken prior to 1 January 1955
CArtistic works (except A & B): the creator died before 1 January 1955
DPublished editions2 (except A & B): first published more than 25 years ago (prior to 1 January 2000)
ECommonwealth, State or Territory owned3 photographs and engravings: taken or published more than 50 years ago (prior to 1 January 1975)
1 Copyright Amendment (Disability Access and Other Measures) Bill 2017 (Australian Government)
2 means the typographical arrangement and layout of a published work. eg. newsprint.
3 owned means where a government is the copyright owner as well as would have owned copyright but reached some other agreement with the creator.
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 Note that a few countries have copyright terms longer than 70 years: Mexico has 100 years, Jamaica has 95 years, Colombia has 80 years, and Guatemala and Samoa have 75 years. This image may not be in the public domain in these countries, which moreover do not implement the rule of the shorter term. Honduras has a general copyright term of 75 years, but it does implement the rule of the shorter term. Copyright may extend on works created by French who died for France in World War II (more information), Russians who served in the Eastern Front of World War II (known as the Great Patriotic War in Russia) and posthumously rehabilitated victims of Soviet repressions (more information).

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15 September 1944

data size

183,170 byte

height

638 pixel

width

477 pixel

media type

image/jpeg

checksum

487cde6a23cffa10af9cdc9502d27242da16e0c0

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Date/TimeThumbnailDimensionsUserComment
current17:28, 19 December 2017Thumbnail for version as of 17:28, 19 December 2017477 × 638 (179 KB)wikimediacommons>Maury MarkowitzUser created page with UploadWizard

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