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LP : Long Pulse
MED : Marine Equipment Directive. Request standard for standardisation of
marine equipment within the EU region
MFD : The formal name is Multi Function Display. The navigation support
functions such as RADAR, ECDIS, CID, and AMS can be executed by
switching.
MMSI : Maritime Mobile Service Identity
MOB : Man Over Board
MON : Performance MONitor
MP : Medium Pulse
newpec : Electronic navigational chart by Japan Hydrographic Association
NM : Nautical Mile 1 nm=1852 m
N UP : The north is always pointed to the top centre of the radar display.
(North up)
P0N : Unmodulated pulse, which is a type of transmission radio wave. While
it is a type of radio wave usually used by radars equipped with
magnetrons, radio waves with a short pulse length are used also by
solid-state radars for short-range detection.
PI : Parallel Index line
Past positions : Equally time-spaced past position marks of a tracked or AIS target and
the own ship.
POSN : POSitioN
PRF : Pulse Repetition Frequency. The number of radar pulses transmitted
each second.
PROC : PROCess. Radar signal processing function
Q0N : A type of radio wave with intra-pulse frequency modulation. It is used
for solid-state pulse compression radars.
RL : Rhumb Line
RR : Range Rings
Relative vector : A predicted movement of a target relative to own ship’s motion
RM : Relative Motion. A display on which the position of own ship remains
fixed, and all targets move relative to own ship.
RM(R) : Relative Motion. Relative Trails
RM(T) : Relative Motion. True Trails
ROT : Rate Of Turn. Change of heading per time unit
Route : A set of waypoints
RPU : RADAR Processing Unit
SOG : Speed Over the Ground
SART : Search And Rescue Transponder
SET : The current direction for manual correction or the current speed on the
horizontal axis of the 2-axis log is displayed.
SLC : Serial LAN Interface Circuit
SP : Short Pulse
STAB : STABilisation
STW : Speed Through Water
TCPA : Time to Closest Point of Approach to own ship
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