File:Helical antenna.jpg
From Vigyanwiki
Helical antenna.jpg
Size of this preview: 346 × 600 pixels. Other resolutions: 138 × 240 pixels | 517 × 896 pixels.
Original file (517 × 896 pixels, file size: 144 KB, MIME type: image/jpeg)
This file is from Wikimedia Commons and may be used by other projects. The description on its file description page there is shown below.
Summary
| DescriptionHelical antenna.jpg | helical antenna, made for WLAN, operating in the range of app. 2,4GHz, gain approx. 15dBi |
| Date | |
| Source | Own work |
| Author | Ulfbastel |
Licensing
I, the copyright holder of this work, hereby publish it under the following licences:
| Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation Licence, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the licence is included in the section entitled GNU Free Documentation Licence.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
| This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported licence. | ||
| ||
| This licensing tag was added to this file as part of the GFDL licensing update.http://creativecommons.org/licenses/by-sa/3.0/CC BY-SA 3.0Creative Commons Attribution-Share Alike 3.0truetrue |
You may select the licence of your choice.
Captions
Add a one-line explanation of what this file represents
Items portrayed in this file
depicts
3 May 2007
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 22:50, 16 February 2012 | 517 × 896 (144 KB) | wikimediacommons>Rotatebot | Bot: Image rotated by 270° |
File usage
The following page uses this file:
Metadata
This file contains additional information, probably added from the digital camera or scanner used to create or digitise it.
If the file has been modified from its original state, some details may not fully reflect the modified file.
| Camera manufacturer | EASTMAN KODAK COMPANY |
|---|---|
| Camera model | KODAK EASYSHARE C300 DIGITAL CAMERA |
| Exposure time | 760,209/1,073,741,824 sec (0.00070799980312586) |
| F Number | f/4.5 |
| ISO speed rating | 100 |
| Date and time of data generation | 17:27, 18 July 2005 |
| Lens focal length | 5.9000000953674 mm |
| Orientation | Normal |
| Horizontal resolution | 129.25 dpi |
| Vertical resolution | 129.25 dpi |
| Software used | Version 1.0600 |
| File change date and time | 18:00, 18 July 2005 |
| Y and C positioning | Centred |
| Exposure Programme | Normal programme |
| Exif version | 2.2 |
| Date and time of digitising | 17:27, 18 July 2005 |
| Meaning of each component |
|
| Image compression mode | 1.4099999666214 |
| APEX shutter speed | 10.460000038147 |
| APEX aperture | 4.3299999237061 |
| APEX exposure bias | 0 |
| Maximum land aperture | 4.3299999237061 APEX (f/4.48) |
| Metering mode | Centre weighted average |
| Flash | Flash did not fire, auto mode |
| Supported Flashpix version | 1 |
| Colour space | sRGB |
| Exposure index | 100 |
| Sensing method | One-chip colour area sensor |
| File source | Digital still camera |
| Scene type | A directly photographed image |
| Custom image processing | Normal process |
| Exposure mode | Auto exposure |
| White balance | Auto white balance |
| Digital zoom ratio | 0 |
| Focal length in 35 mm film | 37 mm |
| Scene capture type | Standard |
| Scene control | None |
| Contrast | Normal |
| Saturation | Normal |
| Sharpness | Normal |
| Subject distance range | Unknown |
Retrieved from ‘https://www.vigyanwiki.in/wiki/File:Helical_antenna.jpg’