Appendix B Menu List and Materials B-22
Abbreviation Term
NMT Not More Than
No. = NUM Number
NW North West
O
OPE Operation
OPU Operation Unit
OSD Own Ship Data
OVRD Override
P
PI Parallel Index Line
PIN Personal Identification Number
PL Pulse Length
PORT Port/ Portside
POS = POSN Position
PPI Plan Position Indicator
PRF Pulse Repetition Frequency
PROC Process
PS Power Supply
PSU Power Supply Unit
PWR Power
Q
R
R Relative
RADAR Radio Detecting and Ranging
RAND Random
RCID Raster Chart Issue Date
REF Reference
REL Relative
Rev. Revolution
RIF Radar I/F Circuit
RL Rhumb Line
RM Relative Motion
RM(R) Relative Motion. Relative Trails.
RM(T) Relative Motion. True Trails.
RMS Root Mean Square
RNC Raster Navigational Chart
RNG Range
RoRo Roll On/ Roll Off (Vessel)
ROM Read Only Memory
ROT Rate of Turn
RPS Route Planning System
RX Receiver
S
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