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distress signal

   Also found in: Wikipedia 0.04 sec.
distress signal
n.
An international signal used by a distressed ship or aircraft to request help, as by radio broadcasts, flags, or flares.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.distress signaldistress signal - an internationally recognized signal sent out by a ship or plane indicating that help is needed
distress call
signal, signaling, sign - any nonverbal action or gesture that encodes a message; "signals from the boat suddenly stopped"
SOS - an internationally recognized distress signal in radio code
Mayday - an internationally recognized distress signal via radiotelephone (from the French m'aider)
Translations
Spanish distress signal n → señal f de socorro
French distress signal n → signal m de détresse
German distress signal distress n → Notsignal nt
Italian distress signal n → segnale m di pericolo
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The Pulkovo pilots sent a distress signal about 2 min.
Travel Safety Update by Airguide Online
Both are DSC capable and when connected to a GPS, allowing you to send a one-button distress signal or exchange position information with other vessels.
Cobra goes VHF by Croft, Scott / BOAT/U.S. Magazine
A rudimentary distress signal, such as an SOS in Morse code, on a narrow frequency band might be easier to extract from the radio clutter than a plea for help spoken in words.
Radio-a-wreck: a post-9/11 challenge of communicating through ... by Weiss, Peter Ulrich / Science News
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