File:Curtain antenna at Hoerby shortwave station.JPG
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editDescriptionCurtain antenna at Hoerby shortwave station.JPG |
English: Antenna "G1" at Hörby Shortwave Station| near Hörby in the south of Sweden operated by the Swedish national broadcasting service Sveriges Radio. This is a curtain antenna, consisting of 16 horizontal wire half wave dipole antennas suspended in a 4x4 rectangular array, in front of a plane reflector consisting of a screen of many parallel horizontal wires. These are suspended from support wires stretching between the two steel masts. This antenna is used to broadcast to large areas thousands of miles away, around the curve of the Earth, by skywave ("skip") propagation. It radiates a powerful beam of radio waves at a shallow angle into the sky, where it is reflected back to Earth by the ionosphere beyond the horizon.
Each of the vertical columns of 4 dipoles is fed by a separate transmission line, which can be seen exiting down at an angle at the center of each column. Hoerby shortwave station, operated by the national broadcasting organization Sveriges Radio (Radio Sweden) was shut down 30 October 2010 due to a decision to concentrate on internet broadcasting. Svenska: Gardinantenn "G1" vid Hörby kortvågsstation. |
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Image title | <KENOX S630 / Samsung S630> |
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Camera manufacturer | Samsung Techwin |
Camera model | [[:en:<KENOX S630 / Samsung S630>|<KENOX S630 / Samsung S630>]] |
Copyright holder | COPYRIGHT, 2007 |
Exposure time | 1/180 sec (0.0055555555555556) |
F-number | f/9.1 |
ISO speed rating | 80 |
Date and time of data generation | 09:36, 5 March 2011 |
Lens focal length | 10.3 mm |
Orientation | Normal |
Horizontal resolution | 72 dpi |
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File change date and time | 19:42, 27 April 2013 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 09:36, 5 March 2011 |
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Color space | sRGB |
Related audio file | RelatedSound |
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File source | Digital still camera |
Scene type | A directly photographed image |
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Focal length in 35 mm film | 61 mm |
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