TM 1-1510-223-10
Change 3 B-5
AFC
Automatic frequency
control
AFCS
Automatic flight control
system
A/G
Air to ground
AGC
Automatic gain control
AGL
Above ground level
AI
Airborne interceptor
AJ
Anti-jam
ALM
Almanac
ALSE
Aviation life support
equipment
ALT
Altitude
AM
Amplitude modulation
ANT
Antenna
AP, A/P
Autopilot
APPR
Approach
ARINC
Aeronautical radio, inc.
AS, A/S
Airspeed
ASE
Aircraft survivability
equipment
ASET
Aircraft survivability
equipment training
ATC
Air traffic control
ATT
Attitude
AUX
Auxiliary
AVGAS
Aviation gasoline
AVUM
Aviation unit maintenance
AZ
Azimuth
BARO
Barometric
BAT
Battery
BC
Back course
BCD
Binary coded decimal
BFO
Beat frequency oscillator
BIT
Built-in test
BOT
Bottom
BRG
Bearing
BU
Back-up, battery unit
CAP
Capture
CDI
Course deviation indicator
CDS
Control-display system
CDU
Control-display unit
CH
Channel
CHALS
Coherent high-accuracy
airborne location system
CIPH
Cipher
CKLST
Checklist
CKW
Cryptokey weekly
CLR
Clear
CMD
Command
COMM
Communications
COMSEC
Communications security
CONFIG
Configuration
CN
Carrier to noise
CPU
Central processing unit
CRS
Course
CV
Crypto variable
CW
Continuous wave
C/W
Caution/warning
CWA
Caution, warning, and
advisory
DA
Drift angle
D/A
Digital to analog
DC
Direct current
DCU
Digital computer unit
DD
Differential doppler
DEG
Degrees
DEL
Delete
