Garmin GTN 650Xi Series Pilot's Manual page 528

Glossary
V
VCALC Vertical Calculator
VDI Vertical Deviation Indicator
VFR Visual Flight Rules
VHF Very High Frequency
VLOC VOR/Localizer
VNAV Vertical Navigation
VOR Very High Frequency Omnidirectional Range
VORTAC Very High Frequency Omnidirectional Range Station
and Tactical Air Navigation
VPL Vertical Protection Level
VRP Visual Reporting Point
VS Vertical Speed
VSI Vertical Speed Indicator
W
WAAS Wide Area Augmentation System
WGS84 World Geodetic System 1984
WPT Waypoint
WX Weather
X
XPDR Transponder
XTK Cross Track
11-8 Pilot's Guide 190-02327-03 Rev. C