12 - MESSAGES
ABBREVIATIONS &
NAV TERMS
209
190-00357-00 Rev H
Position format
MHz — Megahertz
mi — Statute Miles
MOA — Military Operations Area
mph — Statute Miles Per Hour
mpm — Meters Per Minute
mps — Meters Per Second
MSA — Minimum Safe Altitude
MSG — Message
MSL — Mean Sea Level
mul — Multicom
NATNL — National
NAV — Navigation
NAVAID — Navigational Aid
NDB — Non-Directional Radio Beacon
NM — Nautical Miles
NRST — Nearest
NUM — Number
OBS — Omnibearing Selector
OCN — Oceanic
PDA — Premature Descent Alert
P.POS — Present Position
PROC — Procedure(s)
PROV — Province
PTK — Parallel Track
PWR — Power
RAD — Radial
RAIM — Receiver Autonomous Integrity Moni-
toring
REF — Reference
REQ — Required / Requirements
RESTRICTD — Restricted
RNG — Range
RTC — Required Terrain Clearance
RX — Receive
SBAS — Space-Based Augmentation System
SID — Standard Instrument Departure
Sml — Small
SPD — Speed
SQ — Squelch
SRFC — Surface
STAR — Standard Terminal Arrival Route
SUA — Special Use Airspace
SUSP —
Waypoint Sequencing Suspended
°T — Degrees True
TACAN — Tactical Air Navigation
TAS — True Airspeed
TAT — Total Air Temperature
TEMP — Temperature
TER — Terrain
TERM — Terminal
