File:Image camera sans fil 5.jpg

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Image_camera_sans_fil_5.jpg (317 × 240 pixels, file size: 39 KB, MIME type: image/jpeg)

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Description
Français : *Sujet: aspect d'image analogique PAL via un kit caméra sans fil 2.4 GHz, observée depuis son récepteur associé distant de 4.6 km. Le signal est quasiment noyé dans le bruit.
  • Attenuation/air à 5 km : - 114 dB.

Suivant le facteur de bruit du récepteur, la technologie d'antenne RX retenue par le constructeur, la portée de curiosité peut être différente en qualité ou bien en distance, ex 3 km. Il s'agit donc d'une illustration indicative moyenne.

Serge Nueffer
Date 30 July 2005 (original upload date)
Source Transferred from fr.wikipedia to Commons by Bloody-libu using CommonsHelper.
Author The original uploader was Serge Nueffer at French Wikipedia.
Other versions

Quelques exemples d'aspect d'images PAL obtenus selon la distance avec un kit caméra sans fil 2.4 GHz à la norme CE et reçue sur son récepteur associé (Figure bruit 4db).

  • 500 m
    500 m
  • ~ 1 km
    ~ 1 km
  • ~ 1,5km
    ~ 1,5km
  • ~ 2 km
    ~ 2 km
  • ~ 5 km
    ~ 5 km

Licensing

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GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, 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 license is included in the section entitled GNU Free Documentation License.
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This licensing tag was added to this file as part of the GFDL licensing update.

Original upload log

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The original description page was here. All following user names refer to fr.wikipedia.

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Date/TimeThumbnailDimensionsUserComment
current23:02, 11 August 2012Thumbnail for version as of 23:02, 11 August 2012317 × 240 (39 KB)File Upload Bot (Magnus Manske) (talk | contribs)Transfered from fr.wikipedia by User:Bloody-libu using CommonsHelper

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