File:Conical monopole antenna.png
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[edit]DescriptionConical monopole antenna.png |
English: A conical monopole antenna, a broadband omnidirectional antenna used for communications in the high frequency (HF) band by the US Navy. It can transmit at powers up to 40 kW and has a gain of -2 to 2 dBi. It is about 20 feet high. |
Date | |
Source | Electrician - Nonresident Training Course NAVEDTRA 14092, US Navy, 1995, Volume 7 - Antennas and Wave Propagation, p.2-11, fig.2-20 on Wikimedia Commons |
Author | Larry D. Simmons and Floyd L. Ace |
Licensing
[edit]Public domainPublic domainfalsefalse |
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.
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This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. |
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 01:25, 27 January 2023 | 461 × 861 (145 KB) | Chetvorno (talk | contribs) | Uploaded a work by Larry D. Simmons and Floyd L. Ace from Electrician - Nonresident Training Course NAVEDTRA 14092, US Navy, 1995, Volume 7 - Antennas and Wave Propagation, p.2-11, fig.2-20 on Wikimedia Commons with UploadWizard |
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Horizontal resolution | 37.79 dpc |
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Vertical resolution | 37.79 dpc |
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1 October 1995
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c7dba8da2647cb4c19c606b7c8cf7bc102281d1f
147,988 byte
861 pixel
461 pixel
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