navigation acronyms, abbreviations and definitions - International ...

MRS Monitor and Ranging Station (MSAS)
MRS multi-constellation regional system
MRSA mandatory radar service area (military ATC)
MRSC Maritime Rescue Secondary (Sub) Centre
MRSE mean radial spherical error
MRT mountain rescue team
MRTD machine-readable travel document
MRV Monitoring, Reporting and Verification (EU ETS)
MRVA minimum radar vectoring altitude
ms millisecond (one-thousandth of a second)
MS Monitor Station (eg GPS)
MSA Marine Safety Agency
Was part of DETR, replaced in Apr 98 by MCA.
MSA minimum safe altitude
MSA minimum sector altitude
MSAs Merchant Shipping Acts (in UK empower the GLAs)
MSAS Multi-transport Satellite-based Augmentation System
Japanese WAAS.
MSAWS minimun safe altitude warning system
MSB most significant bit
MSB multi-sensor box
MSC Maritime Safety Committee (IMO)
MSD minimum separation distance
MSDP multi-sensor data processor
MSF Callsign of UK 60 kHz time & freq TX used by radio-cont clocks.
MSF Mission Support Facility (Galileo)
MSFD Marine Strategy Framework Directive (EU)
MSG Meteosat Second Generation (3 met/S&R sats first launched 2002)
MSI Maritime Safety Information (IMO)
MSK minimum shift keying
msl mean sea level
MSN Merchant Shipping Notice (M-Notice)(UK)
MSP Modes S Specific Protocol
MSS mean sea surface
MSS mobile satellite service
MSSR monopulse secondary surveillance radar
MSSS Modes S Specific Services
MSU mobile satcom unit
MT mobile terminal
MT mobile terminated (call or SMS to a mobile device)
MTA military training area
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