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Standard Marine Distress Signals

Search and Rescue/Canadian Coast Guard

Radio

Radiotelephone
Call: "Mayday!"
Give: name and position
Use: 156.8 MHz-Ch16
2182 kHz;
or use alarm signal.
VHF-DSC

406 MHz
Emergency position indicating radiobeacon
EPIRB

 

Code Flags

N over C

Distress Cloth

Ball

over or under

Square

Sound Signals

Continuous: Foghorn, bell, whistle.

1-minute intervals: Gun or any explosive


 

Flares

Type A:
Parachute rocket

Type B:
Multi-star rocket

Type C:
Hand-held

Type D:
Buoyant or hand-held orange smoke

Flashlight

Arm Signal

Do not use near helicopter (different meaning)

Flame on Vessel

as from burning tar, oil in barrel, etc.

Dye Marker

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