Abbreviations
MRCC MRSC ms
MSI MSL
Mt(s) N
NB
NCM NM No Np
NRT NTCGS O
Obscd Obstn Oc
(occas) oct
ODAS Or
P P P
(P) PA
Pass PCM
PD
PHM PO
Prohib Prom Pt
PV Pyl
Q R
R R R
Ra Racon
Radome Ramark RCC Rds Ref
Ro-Ro R/T Ru
Rep Rf
RG RH
Rk(s), Rky S
S S
s or sec(s) SAR SBM SC
SCM Sd SD SD
Sem sf
Sh SHM
Maritime Rescue Co-ordination Centre Maritime Rescue Sub Centre Millisecond(s); minutes, seconds Marine Safety Information Mean Sea Level
Mountain(s) or Mount North
Notice Board
North Cardinal Mark (buoy or beacon) Notice to Mariners Number
Neap tides Net registered tonnage
Northern Territories Coastguard Service
Circular in shape Obscured
Obstruction
Occulting light Occasional Octagonal
Ocean Data Acquisition System Orange
Petrol Port
Pebbles Preliminary (NM)
Position approximate Passage
Preferred Channel Mark (buoy or beacon)
Position doubtful Port-hand mark Post Office Prohibited Prominent Point
Pilot Vessel Pylon
Quick flashing light Red
River
Restaurant Rock
Radar Station
Radar Transponder Beacon Radar dome Radar Beacon
Rescue Co-ordination Centre Roads or Roadstead Refuge station or buoy
Roll-on Roll-off vessel or berth Radiotelephony Ruins
Reported Reef
Emergency RDF Station Right hand
Rock(s), Rocky Sand
South Saint
Second(s) of time Search and Rescue Single Buoy Mooring Sailing Club
South Cardinal Mark (buoy or beacon) Sound
Sailing Directions Sounding doubtful Semaphore Stiff
Shells or Shoal
Starboard-hand Mark (buoy or beacon)
7
< >
Si
Sig SM So
SOLAS SPCGO
Sp sp
SPM SPM SR SS
SSB St
Stbd Sta Str
subm SWM sy
sync
(T), temp t
tbc tbn TD TE
Tel Tfc
Tr, twr TSS
ufn uncov
Unintens unexam UQ UT
V
Var Vel
(vert) VHF Vi
vis
VLCC VTM VTS VQ W W
WCM Wd wef
WGS Whis Wk
WMO WPT
Y YC SHAPES Round
Triangular Square Diamond
In transit (with) Less than
Greater than Silt Signal
Sailmaker Soft
Safety of Life at Sea (IMO Convention)
Southern Peninsula Coastguard Organisation Spire
Spring tides
Special Mark (buoy or beacon) Single Point Mooring Sunrise
Sunset or Signal Station Single Side Band (Radio) Stones
Starboard Station Strait
Submerged
Safe Water mark (buoy or beacon) Sticky
Synchronised Temporary
Tonne or Ton
To be confirmed To be notified
Temporarily discontinued (fog signal) Temporarily extinguished (light) Telephone Traffic Tower
Traffic Separation Scheme Until further notice Unintensified
Uncovers Unexamined
Ultra Quick flashing light Universal Time
Victuals
Variation (magnetic) Velocity
Vertically disposed Very High Frequency Violet
Visible or Visibility
Very Large Crude Carrier Vessel Traffic Management Vessel Traffic Services Very Quick flashing light West
White
West Cardinal Mark (buoy or beacon) Weed
With effect from
World Geodetic System (GPS datum) Whistle Wreck
World Meteorological Organisation Waypoint
Yellow Yacht Club
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