File:LNB_2.JPG
From Wikipedia, the free encyclopedia
Size of this preview: 800 × 533 pixels. Other resolutions: 320 × 213 pixels | 640 × 427 pixels | 1,024 × 683 pixels | 1,280 × 853 pixels | 2,560 × 1,707 pixels | 5,184 × 3,456 pixels.
Original file (5,184 × 3,456 pixels, file size: 5.27 MB, MIME type: image/jpeg)
This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
DescriptionLNB 2.JPG |
Français : Visualisation de l'antenne réceptrice à l'intérieur du cornet amplificateur d'une LNB. English: Cross-section of a low-noise block downconverter, the box on the front of a satellite TV dish that receives the satellite signal collected by the dish, processes it, and sends it via a coaxial cable indoors to a satellite TV receiver that is connected to the TV set. The box has a scalar horn antenna (the funnel with concentric rings, right) which collects the microwave beam and directs it into a waveguide, a short closed metal pipe. Two small metal pins project into the waveguide from the circuit board; these serve as antennas which convert the microwaves to radio frequency alternating currents. On the circuit board (left), these are amplified by a low noise amplifier, then a local oscillator and mixer convert the block of frequencies to a lower block of frequencies, which are output to a jack on the outside of the box (left) to which a coaxial cable is connected to carry the signal inside the house. |
Date | |
Source | Own work |
Author | Laurent06 |
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- 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.
Items portrayed in this file
depicts
some value
9 February 2013
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 22:13, 10 February 2013 | 5,184 × 3,456 (5.27 MB) | Laurent06 | User created page with UploadWizard |
File usage
The following pages on the English Wikipedia use this file (pages on other projects are not listed):
Global file usage
The following other wikis use this file:
- Usage on ar.wikipedia.org
- Usage on el.wikipedia.org
- Usage on fa.wikipedia.org
- Usage on fr.wikipedia.org
Metadata
This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
If the file has been modified from its original state, some details may not fully reflect the modified file.
Camera manufacturer | Canon |
---|---|
Camera model | Canon EOS 60D |
Exposure time | 1/50 sec (0.02) |
F-number | f/4.5 |
ISO speed rating | 250 |
Date and time of data generation | 18:49, 9 February 2013 |
Lens focal length | 33 mm |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
File change date and time | 18:49, 9 February 2013 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.3 |
Date and time of digitizing | 18:49, 9 February 2013 |
Meaning of each component |
|
Shutter speed | 5.625 |
APEX aperture | 4.375 |
Exposure bias | 0 |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
DateTime subseconds | 00 |
DateTimeOriginal subseconds | 00 |
DateTimeDigitized subseconds | 00 |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 5,728.1767955801 |
Focal plane Y resolution | 5,808.4033613445 |
Focal plane resolution unit | inches |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Scene capture type | Standard |
Rating (out of 5) | 0 |
Retrieved from "https://en.wikipedia.org/wiki/File:LNB_2.JPG"