File:NavigationResearch 016.jpg
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Summary
[edit]DescriptionNavigationResearch 016.jpg | Fig. 23- Radio direction finder or coil aerial used in measuring the distortion of radio waves in the vicinity of trees, towers, wires, buildings, etc. Fig. 24- Model set up in the radio laboratory to illustrate the use of the radio direction finder. Radio signals were sent out from the two lighthouses and the direction from whence they came was determined by the apparatus on the ship. The latter could therefore determine its position even in fog and under other conditions which rendered the lighthouse lamp invisible. (From: NBS Special Publication 46) | ||||
Source | National Institute of Standards and Technology | ||||
Author | National Institute of Standards and Technology | ||||
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[edit]Public domainPublic domainfalsefalse |
This image is in the public domain in the United States because it is a work of the United States Federal Government, specifically an employee of the National Institute of Standards and Technology, under the terms of Title 17, Chapter 1, Section 105 of the US Code.
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current | 16:30, 6 March 2014 | 3,528 × 5,375 (17.91 MB) | NISTResearchLibrary (talk | contribs) |
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Author | National Institute of Standards and Technology |
Copyright holder |
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Headline | National Institute of Standards and Technology |
Source | Navigation Research Photographic Collection |
Short title |
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Width | 3,528 px |
Height | 5,375 px |
Bits per component |
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Compression scheme | Uncompressed |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 600 dpi |
Vertical resolution | 600 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop CS6 (Windows) |
File change date and time | 14:00, 30 May 2013 |
Exif version | 2.21 |
Color space | Uncalibrated |
Date and time of digitizing | 05:32, 24 April 2013 |
Date metadata was last modified | 10:00, 30 May 2013 |
Unique ID of original document | xmp.did:CAD10933E4ACE21194E393123AD13CA4 |
Keywords |
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Contact information | library@nist.gov
100 Bureau Dr, MS 2500 Gaithersburg, MD, 20899 |
IIM version | 4 |