CQD
As the first wireless operators were taken from the already trained landline telegraphers, the current practices carried forward and CQ had then been adopted in maritime radiotelegraphy as a "general call" to any ship or land station.[a] Although used worldwide by Marconi operators, CQD was never adopted as an international standard, since it can easily be mistaken for a mere general call "CQ" when reception is poor.[3]: 218 On 7 December 1903, Ludwig Arnson was a wireless operator aboard the liner SS Kroonland when the ship lost a propeller off the Irish coast.[1] In the early morning of 23 January 1909, whilst sailing into New York from Liverpool, RMS Republic collided with the Italian liner SS Florida in fog off the Massachusetts island of Nantucket.[9][10] On 15 April 1912, RMS Titanic radio operator Jack Phillips initially sent "CQD", which was still commonly used by British ships.
CQD (disambiguation)Morse codedistress signalsMarconi International Marine Communication CompanytelegraphslightshipAmerican Morse codeSS KroonlandRMS RepublicMassachusettsNantucketwirelessRMS TitanicJack PhillipsHarold Bride500 kHz2182 kHzGlobal Maritime Distress and Safety SystemMaydayProsigns for Morse codebackronymsInternational Morse codeElectrical telegraphOn–off keyingContinuous waveModulated continuous waveHeliographSignal lampMorse code mnemonicsMorse code abbreviationsQ codeZ codeOther writing systemsin Morse codeRussianWabun codeChinese telegraph code