sos

     

SOS is the commonly use 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 included in the second International Radiotelegraphic Convention, which was signed on November 3, 1906, and became effective on July 1, 1908.

Trivia about sos

  • It was first transmitted by the USS Arapahoe off Cape Hatteras on August 11, 1909
  • The radio operators used Morse code to send out the CQD distress call, as well as this newer one
  • The palindromic ABBA had a 1975 hit with this palindromic song of distress
  • Adopted in 1906 by international agreement, this became the telegraph's standard distress signal
  • (Sarah gives the clue.) This signal was chosen because it was easy to remember and quick to send
  • "If you're ever in a jam, here I am, if you're ever in a mess", send this distress signal
  • If you need to semaphore for help, these 3 letters here will do just fine
  • ABBA hit the Top 40 for the third time in 1975 with this 3-letter palindrome

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