File:Harold E Holt Naval Base.jpg
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English: Naval Communication Station Harold E. Holt near Exmouth, Western Australia. The radio masts are part of a large wire antenna which is used to transmit very low frequency (VLF) radio waves to communicate with submerged submarines. This type of antenna is known as a "Goliath", a type of umbrella antenna, but has been heavily modified. It consists of a ring of steel masts which support a network of horizontal cables radiating from the central mast. The central mast acts as the radiating element, while the horizontal cables serve as a capacitive top-load, creating a large capacitor with the ground. This serves to increase the current in the central radiator, increasing the radiated power. |
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| Source | Own work |
| Author | Nachoman-au |
| Camera location |  | View this and other nearby images on: OpenStreetMap |  |
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
  
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 12:00, 28 December 2005 | | 1,280 × 960 (162 KB) | Nachoman-au~commonswiki (talk | contribs) | Photo taken (28th July 2003) and supplied by Nachoman-au. Naval Communication Station Harold E. Holt near Exmouth, Western Australia. [[Category:Exmouth, Western Australia] |
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