Appendix-5
Term Abbreviation
Raster Navigational Chart RNC
Rate Of Turn ROT
Real-time Kinematic RTK
Receive RX
a
Receiver RCDR
Receiver Autonomous
Integrity Monitoring
RAIM
Reference REF
Relative
REL
b
Relative Motion RM
Revolutions per Minute RPM
Rhumb Line RL
Roll On/Roll Off Vessel RoRo
Root Mean Square RMS
Route ROUTE
Safety Contour SF CNT
Sailing Vessel SAIL
Satellite SAT
S-Band S-BAND
Scan to Scan SC/SC
Search And Rescue SAR
Search And Rescue
Transponder
SART
Search And Rescue
Vessel
SARV
Select SEL
September SEP
Sequence SEQ
Set (i.e., set and drift, or
setting a value)
SET
Ship’s Time TIME
Short Pulse SP
Signal to Noise Ratio SNR
Simulation SIM
c
Slave SLAVE
South S
Speed SPD
Speed and Distance
Measuring Equipment
SDME
Speed Over the Ground SOG
Speed Through the Water STW
Stabilized STAB
Standby STBY
Starboard/Starboard Side STBD
Station STN
Symbol(s) SYM
Term Abbreviation
Synchronised/
Synchronous
SYNC
System Electronic
Navigational Chart
SENC
Target TGT
Target Tracking TT
Test TEST
Time TIME
Time Difference TD
Time Dilution Of Precision TDOP
Time Of Arrival TOA
Time Of Departure TOD
Time to CPA TCPA
Time To Go TTG
Time to Wheel Over Line TWOL
Track TRK
Track Control System TCS
Tracking TRKG
Trail(s) TRAIL
Transmit and Receive TXRX
a
Transceiver TCVR
Transferred Line Of
Position
TPL
Transmit TX
Transmitter TMTR
Transmitting Heading
Device
THD
Trial TRIAL
c
Trigger Pulse TRIG
True T
True Motion TM
Tune TUNE
Ultrahigh Frequency UHF
Uninterruptible Power
Supply
UPS
Universal Time,
Coordinated
UTC
Universal Transverse
Mercator
UTM
Unstabilised UNSTAB
Variable Range Marker VRM
Variation VAR
Vector VECT
Very High Frequency VHF
Very Low Frequency VLF
Vessel Aground GRND
Vessel at Anchor ANCH