Visual Signals

(Ground to Air panel messages)

 (Tactical Hand Signals)

Signals (International Distress)Flares
Red Star Shells
Parachute red flare

Continuous Fog Horn
A gun fired every one minute
Three blasts on a whistle, pause for a minute

Flames on a vessel  
Orange back ground Black square over black circle

SOS by lamp, audio i.e. whistle, Radio

Any colour dye marker

Code flags November over Charlie

Square flag over ball

Wave arms (flapping action)

Any Smoke
When on an Inland water a fast flashing white light 

Mountain distress signals
3 fires or piles of rocks in a triangle (6 in Europe)
3 flashes of a light, (6 in Europe), pause for one minute 

Mayday by voice on radio (156.8Mhz / 2182Khz) (24 hours)

EPIRB (406 MHz) (24 hours)
Distress signal DCS channel 70 (156.525 MHz) (24 hours)

 Using a CB Radio To call for help
CB Channel 9 Emergency Traffic Only (Unpredictable)
(27.68125 MHz) UK , (27.0650 MHz) CEPT / EU /USCB Channel 19 UK Trucking Main Contact Channel 
(Alt Emergency Calling Channel Unpredictable)
(27.78125 MHz) UK , (27.1850 MHz) CEPT / EU / US 

Marine Radio To call for help
VHF Channel 16 General Contact Channel / Emergency Calling (24 hours)
(156.8 MHz) UKHF Emergency Calling Watch kept hh00 to hh03 and hh30 to hh33
(2182kHz) InternationalDigital Selective Calling (DCS) Channel 70 (24 hours)
(156.525 MHz) Note:-
Primary Intership working channels 06, 08, 72, 77
UK Coastguard use channels 67, 10, 73, 23, 84, 86
67 used a small vessels safety information chanel 

Air Band Radio 
(121.5MHz) For civilian communications (24 hours)
(243.0 MHz) UHF Military Communications (24 hours)

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