File:Eight_bay_bowtie_TV_antenna.jpg
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Summary
DescriptionEight bay bowtie TV antenna.jpg |
English: Channel Master model 4228HD 8 bay VHF/UHF rooftop television antenna. This is a type called a reflective array or "bowtie" antenna. It consists of an array of 8 "bowtie" dipole driven elements mounted in front of a wire screen reflector. The "X" shape of the dipoles gives them a wide bandwidth, apparently wide enough to cover both the VHF band 174-216 MHz and the UHF band 470-700 MHz. Using 4 rows increases the gain in the horizontal direction. Channel Master's specifications say it has 5 dB VHF gain, 12 dB UHF gain, 18 dB front-to-back ratio, and the list price is $109.00. Extending up above the antenna is a lightning rod. |
Date | |
Source | Derived from https://www.flickr.com/photos/ajmexico/3121265306/. Alterations to original image: Rotated image CW slightly to justify, cropped out empty sky. |
Author |
Licensing
This image, originally posted to Flickr, was reviewed on 17 July 2015 by the administrator or reviewer Ww2censor, who confirmed that it was available on Flickr under the stated license on that date. |
This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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Items portrayed in this file
depicts
19 December 2008
0.002 second
5.6
120 millimetre
100
image/jpeg
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 17:02, 16 July 2015 | 972 × 1,448 (433 KB) | Chetvorno | User created page with UploadWizard |
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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.
Image title | KONICA MINOLTA DIGITAL CAMERA |
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Camera manufacturer | KONICA MINOLTA |
Camera model | MAXXUM 5D |
Exposure time | 1/500 sec (0.002) |
F-number | f/5.6 |
ISO speed rating | 100 |
Date and time of data generation | 09:41, 19 December 2008 |
Lens focal length | 120 mm |
JPEG file comment | AppleMark |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | GIMP 2.6.11 |
File change date and time | 09:16, 16 July 2015 |
Y and C positioning | Centered |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 09:41, 19 December 2008 |
Meaning of each component |
|
APEX brightness | 8.87 |
Exposure bias | 0 |
Maximum land aperture | 4 APEX (f/4) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 0 |
Focal length in 35 mm film | 180 mm |
Scene capture type | Standard |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
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