The Titanic's wireless calls
The most famous night in radio history - and the one most falsely retold. Here is what is documented, and where it comes from.
A reconstruction, not a recording. The times are ship's time and come from testimony and inquiry reports, not from a log - across the sources they differ by minutes. No sound recording of that night exists; what you hear here is generated from the text.
Two operators who were not sailors
Jack Phillips and Harold Bride did not work for the shipping line but for the Marconi company. Their job was the passengers' paid telegram traffic; safety messages came on the side. On the night of the collision they were still clearing a backlog.
That very division of labour was changed after the sinking. Two rules go directly back to that night: a continuous radio watch at sea and lifeboats for everyone aboard.
CQD first, SOS after
Phillips sent CQD first - the distress call he had learned and that every Marconi station had used since 1904. SOS had been internationally valid for barely four years at that point, but was not yet in everyone's mouth.
That both signals went out alternately that night is documented. Bride later recounted that he suggested, half in jest, sending the new call as well - "it may be your last chance to send it". That remark is a recollection, not a log; so it is marked as such above.
After the Titanic, CQD vanished. Not because it was banned, but because nobody wanted to send the signal that recalled that night.
Why the times differ
The times above are ship's time and come from testimony before the inquiries and from other ships' logs. There is no log from the Titanic - it went down with her.
So the sources differ by minutes, and so no minute is stated here that would be more precise than the record allows. A chronology accurate to the second is a reconstruction pretending to more certainty than it has.
What you hear here is generated
No sound recording of that night exists. Radio reception was not recorded then; what there was to hear, only the person wearing the headphones heard.
The tones on this page are therefore generated from the text, like every other signal on this site. They show how it might have sounded - not how it sounded.
Frequently asked questions
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Was the Titanic the first ship to send SOS?
No. The documented first is the RMS Slavonia in June 1909, followed two months later by the SS Arapahoe. The error persists because the Titanic is the best-known ship to have sent SOS - not the first.
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Does SOS mean "Save Our Souls"?
No. SOS was never an abbreviation but a sequence you cannot miss and cannot confuse: three short, three long, three short, with no letter gaps. The readings came afterwards.
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Why did the Californian not answer?
Her operator had gone off duty and switched the receiver off - entirely normal then, because no rule required a round-the-clock watch. That is precisely what changed after 1912. What else the Californian did or did not see remains disputed and does not belong in a history of radio.
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Can I hear the original transmissions?
Nobody can. No recording exists; the equipment was not aboard and would not have been usual. Anything offered as "the original sound of the Titanic" is a re-enactment.