File:Station radio goniométrique.JPG

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Français : station radio goniométrique. Travaillait sur les fréquences:
  • 333 kHz aéronautique désignée aussi par sa longueur d'onde de 900 mètres,
  • 410 kHz fréquence normale de radiogoniométrie en radiotélégraphie morse positions des navires et des aéronefs a leurs demandes (depuis 1927),
  • 500 kHZ désignée aussi par sa longueur d'onde de 600 mètres, détresse en mer.
  • (666 kHz désignée aussi par sa longueur d'onde de 450 mètres radiogoniométrie en radiotélégraphie morse positions des navires et des aéronefs a leurs demandes jusqu'à 1927) ,
  • (1 MHz désignée aussi par sa longueur d'onde de 300 mètres des petits navires de 1906 jusqu'à 1927).
  • 2182 kHz aussi par sa longueur d'onde de 137,5 mètres, détresse en mer (depuis 1947).
Date
Source --F1jmm (talk) 19:44, 8 June 2011 (UTC)
Author Photo d'un inconnue, anonyme. Unknown

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2 February 1922Gregorian

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Date/TimeThumbnailDimensionsUserComment
current13:55, 2 October 2020Thumbnail for version as of 13:55, 2 October 2020446 × 616 (266 KB)F1jmmColorisation
20:12, 5 September 2014Thumbnail for version as of 20:12, 5 September 2014446 × 616 (194 KB)Llorenzibetter version
04:50, 15 May 2008Thumbnail for version as of 04:50, 15 May 2008480 × 640 (135 KB)F1jmm{{Information |Description= station radio goniométrique vers 1922. |Source= « œuvre personnelle » |Date= 15 Mai 2008 |Author= F1jmm |Permission= |other_versions=1 }} Category:Maritime navigation Category:Aviation [[Category:Telecommunication
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