GNS 530(A) Pilot’s Guide and Reference
190-00181-00 Rev. E
SECTION 16 – MESSAGES,
ABBREVIATIONS, & NAV TERMS
16-11
OCN Oceanic
P.POS Present Position
PROC Procedure(s)
PROV Province
PWR Power
RAD Radial
RAIM Receiver Autonomous Integrity
Monitoring
REF Reference
REQ Required/Requirements
RESTRICTD Restricted
RNG Range
RX Receive
SID Standard Instrument Departure
Sml Small
SPD Speed
SQ Squelch
SRFC Surface
STAR Standard Terminal Arrival Route
SUA Special Use Airspace
°T Degree True
TACAN Tactical Air Navigation
TAS True Airspeed
TAT Total Air Temperature
TEMP Temperature
TERM Terminal
TKE Track Angle Error
TMA ICAO Terminal Control Area
TRANS Transition
TRFC Traffic
TRK Track (also Ground Track)
TRSA Terminal Radar Service Area
twr Tower
TX Transmit
uni Unicom
UTC Coordinated Universal Time
(also GMT or ‘zulu’)
VAR Variation
VER Version
VFR Visual Flight Rules
VLOC VOR/Localizer Receiver
VNAV Vertical Navigation
VOL Volume
VOR VHF (Very High Frequency)
Omnidirectional Radio Range
VS Vertical Speed
VSR Vertical Speed Required
WPT Waypoint
WX Weather
XTK Crosstrack Error