APPENDIX I
GLOSSARY
This glossary defines abbreviations and acronyms as they are used in this training manual.
ACDS— Advance combat direction system
AFTS— Audio-frequency tone shift
ASCII— American Standard Code for information
interchange
BER— Bit error rate
BFSK— Binary frequency-shift keying
CAINS— Carrier Aircraft Inertial Navigation System
CCA— Circuit card assembly
C2— Command and Control
C2P— Command and Control Processor
CDG— Control/display group
CDS— Combat Direction System
CRT— Cathode-ray tube
CPS— Continuous phase shift
CS— Carrier suppression
CSMA— Carrier sense multiple access
CU— Control unit
dB— Decibel
dBm— Milliwatt reference (600-ohm load)
DDC— Digits!-to-digital converter
DDPG— Digital data processor group
DIV— Diversity
DLRP— Data link reference unit
DPG— Data processing group
DTS— Data Terminal Set
EDAC— Error detection and correction
elf— Extremely low frequency
ehf— Extremely high frequency
EMMSD— Embedded mass memory storage device
EMS— Embedded memory subsystem
ETA— Estimated time of arrival
ETD— Estimated time of departure
FDM— Frequency-division multiplexing
FFT— Fast Fourier transform
FSK— Frequency-shift keying
Ghz— Gigahertz
GRU— Gridlock reference unit
hf— High frequency
HPAG— High power amplifier group
HPIB— Hewlett Packard Interface Bus
Hz— Hertz
ID— Track identification
AI-1
