signal in morse (code)
51Optical communication — is any form of telecommunication that uses light as the transmission medium. An optical communication system consists of a transmitter, which encodes a message into an optical signal, a channel, which carries the signal to its destination, and a… …
52dash — dash1 [ dæʃ ] verb * 1. ) intransitive dash into/out of/across etc. to run or go somewhere very quickly because you are in a hurry: Maria came dashing down the stairs. I dashed out into the street, still in my pajamas. 2. ) transitive dash… …
53Decca Navigator System — D …
54Gibson Girl — The Gibson Girl was the personification of the feminine ideal as portrayed in the satirical pen and ink illustrated stories created by illustrator Charles Dana Gibson during a twenty year period spanning the late nineteenth and early twentieth… …
55Alte Weser (lighthouse) — Infobox Lighthouse name=Alte Weser caption = Alte Weser lighthouse in 1992 location = Offshore, mouth of the Weser River, German Bight coordinates =coord|53|52|N|8|08|E| yearbuilt = 1961 1964 yearlit = September 1, 1964 automated = 1972… …
56Letter beacon — Signal of letter beacon D on 5137.5 kHz Letter beacons are radio transmissions of uncertain origin, which consist of only a single repeating Morse Code letter. They are also often referred to as: SLB, or Single Letter Beacons SLHFB, or… …
57SOS — • Morse Code Distress Signal (… …) • Source of Supply …
58500 kHz (maritime et aéronautique) — La fréquence de 500 kHz (désignée aussi par sa longueur d onde : 600 mètres) est la fréquence internationale de détresse et d appel en radiotélégraphie morse[1] pour les stations du service mobile maritime et aéronautique travaillant… …
59SOS — is the commonly used description for the international Morse code distress signal (· · · · · ·). This distress signal was first adopted by the German government in radio regulations effective April 1, 1905, and became the worldwide standard when… …
60Morsealphabet — Übermittlung von Morsecode mittels Lichtzeichen in der Seefahrt Der Morsecode oder Morsekode, manchmal auch Morsealphabet genannt, ist ein Verfahren zur Übermittlung von Buchstaben und Zeichen. Dabei wird ein konstantes Signal ein oder… …
