File:Anthorn comms masts - geograph.org.uk - 125140.jpg

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Anthorn comms masts

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Description
English: Anthorn VLF antenna masts. A view looking south towards the transmitter building and the masts supporting the huge wire triatic antenna of the very low frequency (VLF) naval radio transmitter at Anthorn Radio Station, Anthorn, UK, used by the British Navy to communicate with submerged submarines. This facility was actually under the command of NATO, and in a nuclear war would be used to transmit missile launch orders to ballistic missile submarines. It transmits on 19.6 kHz with a callsign of GQD with output power of hundreds of kilowatts. The antenna consists of 6 vertical wire radiators surrounding the central mast (the second of the 3 masts visible in center), attached to 6 half-mile long rhombic-shaped horizontal multiwire toploads. These extend at angles of 60° from the central mast, supported by 12 surrounding masts, giving the antenna the shape of a snowflake when viewed from above. The entire antenna is more than a mile in diameter.
Date
Source From geograph.org.uk
Author Phil Williams
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Phil Williams / Anthorn comms masts / 
Phil Williams / Anthorn comms masts
Camera location54° 54′ 40″ N, 3° 17′ 38″ W  Heading=90° Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo
Object location54° 54′ 44″ N, 3° 16′ 41″ W  Heading=90° Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

Licensing

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w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.
Attribution: Phil Williams
You are free:
  • to share – to copy, distribute and transmit the work
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Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

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Date/TimeThumbnailDimensionsUserComment
current19:13, 24 December 2011Thumbnail for version as of 19:13, 24 December 2011480 × 640 (65 KB)Rotatebot (talk | contribs)Bot: Reset EXIF-specified Orientation of image (EXIF-Orientation set from 6 to 1, rotated 0°)
02:12, 31 January 2010Thumbnail for version as of 02:12, 31 January 2010640 × 480 (65 KB)GeographBot (talk | contribs)== {{int:filedesc}} == {{Information |description={{en|1=Anthorn comms masts. A view looking south towards the transmitter building and the masts supporting the VLF aerial array at Anthorn. }} |date=2006-02-13 |source=From [http://www.geograph.org.uk/phot

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