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Related articles:
Pan-pan
SOS
Voice procedure
Marine VHF radio
Global Maritime Distress Safety System
Key terms: mayday used radio vessel word emergency distress vhf mayday call code french help mhz coastguard channel traffic aircraft assistance should safety rescue behalf means medical callsign indicate format mayday relay broadcast frequency message legally required code word situation communication channel may transmitting radio silence french phrases imminent danger distress signal spoken three times grave and imminent declaring emergency Search external links cited by footnotes on Wikipedia page Mayday (distress signal): |
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