- This article is about radio distress signal. For Close Quarters Defense see Close quarters battle.
CQD, transmitted in Morse code as - · - · - - · - - · · is believed to be the first distress signal adopted for radio use. It was announced on January 7, 1904 by "Circular 57" of the Marconi International Marine Communication Company, and became effective, for Marconi installations, beginning February 1, 1904. It has been suggested that Mêlée be merged into this article or section. ...
1922 Chart of the Morse Code Letters and Numerals Morse code is a method for transmitting telegraphic information, using standardized sequences of short and long elements to represent the letters, numerals, punctuation and special characters of a message. ...
January 7 is the 7th day of the year in the Gregorian calendar. ...
1904 (MCMIV) was a leap year starting on a Friday (see link for calendar). ...
The Marconi Company Ltd. ...
February 1 is the 32nd day of the year in the Gregorian calendar. ...
1904 (MCMIV) was a leap year starting on a Friday (see link for calendar). ...
The letters CQ sound phonetically like the phrase "seek you" and are still used today by amateur radio operators as a means of initiating contact with others. Land telegraphs had traditionally used "CQ" to identify messages of interest to all stations along a telegraph line, and CQ had also been adopted as a "general call" for maritime radio use. However, in landline usage there was no general emergency signal, so the Marconi company added a "D" to CQ in order to create its distress call. Contrary to popular belief, CQD does not stand for either "Come Quick, Danger", "Come Quick - Drowning!" or "Come Quick, Dammit!"; these are backronyms. Amateur radio station with modern solid-state transceiver featuring LCD display and DSP capabilities Amateur radio, often called Ham radio, is a hobby enjoyed by about six million people[1] throughout the world. ...
Telegraphy (from the Greek words tele = far away and grapho = write) is the long distance transmission of written messages without physical transport of letters, originally over wire. ...
A backronym (or bacronym) is a phrase that is constructed backwards from the phrases abbreviation, the abbreviation being an initialism or acronym. ...
Although used worldwide by Marconi operators, CQD was never adopted as an international standard. At the second International Radiotelegraphic Convention, held in Berlin in 1906, Germany's Notzeichen distress signal of three-dits/three-dahs/three-dits (· · · - - - · · · ) was adopted as the international Morse code distress signal. (This distress signal soon became known as "SOS". Germany had first adopted this distress signal in regulations effective April 1, 1905.) Drawing of a captain and radio operator, titled The S.O.S SOS 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 it was...
April 1 is the 91st day of the year (92nd in leap years) in the Gregorian calendar. ...
1905 (MCMV) was a common year starting on Sunday (link will display the full calendar). ...
In the early morning of January 23, 1909 whilst sailing into New York from Liverpool, the RMS Republic collided with the Italian liner SS Florida in fog off the island of Nantucket, Massachusetts USA. This was the first occasion on which the CQD distress call had been sent by wireless transmission. January 23 is the 23rd day of the year in the Gregorian calendar. ...
1909 (MCMIX) was a common year starting on Friday (see link for calendar). ...
RMS Repuplic RMS Republic was a steam-powered ocean liner built in 1903 by Harland and Wolff in Belfast, and was lost at sea in a collision six years later while sailing for the White Star Line. ...
Nantucket is an island south of Cape Cod, Massachusetts, formed of glacial moraine. ...
This article or section is in need of attention from an expert on the subject. ...
During the sinking of the RMS Titanic in 1912, its radio operator Jack Phillips initially sent "CQD", still commonly used by British ships. Harold Bride, the junior radio operator, then suggested the new code "SOS" be used, and Phillips began to alternate. For other uses, see Titanic. ...
John George Phillips (Jack Phillips) (April 11, 1887 - April 15, 1912) was the Senior Wireless officer on board the maiden voyage of the RMS Titanic which sank on April 15, 1912. ...
Harold Sydney Bride (January 11, 1890 – April 29, 1956) was born in London, England and later became the Junior Wireless officer on board the maiden voyage of the ocean liner RMS Titanic. ...
Drawing of a captain and radio operator, titled The S.O.S SOS 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 it was...
References - Come quick, danger : a history of marine radio in Canada ; Stephan Dubreuil; Ottawa : Fisheries and Oceans Canada, Coast Guard, 1998. OCLC 39748172
- SOS ... CQD : four ships in trouble ; Pete Caesar ; Muskegon, Mich. : Marine Press, 1977. OCLC 3182026
OCLC Online Computer Library Center was founded in 1967 and originally named the Ohio College Library Center (OCLC). ...
OCLC Online Computer Library Center was founded in 1967 and originally named the Ohio College Library Center (OCLC). ...
See also Drawing of a captain and radio operator, titled The S.O.S SOS 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 it was...
This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ...
For most of the 20th century, the radio frequency 500 kHz (known as 600 meters or 500 kc for most of the century, before kilohertz replaced kilocycle) was the international calling and distress frequency for ships on the high seas. ...
The radio frequency of 2182 kilohertz (kHz) is the international calling and distress frequency for voice maritime communication (radio telephony) on the marine MF bands. ...
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