Maritime Distress Signals

  1. Transmitting a spoken voice Mayday/Pan Pan message by radio over very high-frequency channel 16 (156.8 MHz) and/or high frequency on 2182 kHz
  2. Transmitting a digital distress signal by activating (or pressing) the distress button (or key) on a marine radio equipped with Digital Selective Calling (DSC) over the VHF (channel 70)
  3. Sending the Morse code group SOS (3 short, 3 Long, 3 short ) by light flashes or sounds
  4. Square flag with ball shape above or below
  5. EPIRB Activation Emergency Position Indication Radio Beacon 406MHZ ( Satellite distress signal)
  6. Distress flares: smoke, handheld, parachute, Burning a red flare (either hand-held or aerial parachute flare)Emitting orange smoke from a canister
  7. Raising and lowering slowly and repeatedly both arms outstretched to each side
  8. Making a continuous sound with any fog-signalling apparatus
  9. Flying the November and Charlie Flags
  10. Gun or other explosive signals, fired at intervals of about a minute.
  11. Distress signals at a glance