Garmin GNS 430 Pilot's Manual & Reference page 181

Abbreviations
The following is a list of abbreviations used on the GNS 430 and
their meanings:
ACTV
— Active
ALT
— Altitude
APPRCHING
—Approaching
APR
— Approach
APT
— Airport
ARSPC
— Airspace
ARTCC
— Air Route Traffic Control Center
ARVL
— Arrival
AUX
— Auxiliary
AVGAS
— Aviation-grade Gasoline
AVTN
— Aviation
BARO
— Barometric Pressure
BRG
— Bearing To
°C
— Degree Celsius
C/V
— COM/VLOC
CAS
— Calibrated Airspeed
CDI
— Course Deviation Indicator
CLR
— Clear
COM
— Communications Transceiver
CRSR
— Cursor
CTA
— ICAO Control Area
CTAF
— Common Traffic Advisory Frequency
CTR
— Center (see ARTCC)
CTS
— Course To Steer
CUM
— Cumulative
DB
— Database
DEN
— Density
DEP
— Departure
DIS
— Distance
DME
— Distance Measuring Equipment
DOP
— Dilution of Precision
DTK
— Desired Track
11
MESSAGES,
aBBREVIATIONS
& nav tERMS
173