ADF
What is an Automatic Direction Finder
HDG
What is Heading
NAV
What is Navigation
COM
What is Communication
FSS
What is Flight Service Station
ILS
What is Instrument Landing System
FAA
What is Federal Aviation Administration
LOC
What is Localizer
VHF
What is Very High Frequency
ATIS
What is Automatic Terminal Information Service
MHZ
What is Megahertz
ATC
What is Air Traffic Control
ELT
What is Emergency Locator Transmitter
ADF
What is Automatic Direction Finder
CAVU
What is Clouds and Visibility Unlimited
VOR
What is Very High Frequency Omni-diretional Range
VASI
What is Visual Approach Slope Indicator
IFR
RMI
ARSA
What is Aeronautical Repair Station Association
TRSA
What is Terminal Radar Service Area
MSL
What is Mean Sea Level
CTAF
What is Common traffic Advisory Frequency
TACAN
What is Tactical Air Navigation
What did one traffic light say to the other traffic light?
Don't Look! I'm changing!