Appendix-5
Term Abbreviation
Radar Plotting RP
Radius RAD
Rain RAIN
Range RNG
Range Rings RR
Raster Chart Display System RCDS
Raster Navigational Chart RNC
Rate Of Turn ROT
Real-time Kinemetic RTK
Receive Rx RX
Receiver RCDR
Receiver Autonomous
Integrity Monitoring
RAIM
Reference REF
Relative REL
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
Slave SLAVE
South S
Term Abbreviation
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
Synchronised/Synchronous SYNC
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
Transceiver TCVR
Transferred Line Of Position TPL
Transmit TX
Transmitter TMTR
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Transmitting Heading Device THD
Transponder TPR
Trial TRIAL
Trigger Pulse TRIG
True T
True Motion TM
Tune TUNE
Ultrahigh Frequency UHF
Uninterruptible Power Supply UPS