APPENDIX I
LIST OF ACRONYMS
AUX- auxiliary.
BITE- built-in test equipment.
C/A CODE- course acquisition code.
DB- decibel.
DBM- decibel with a reference zero value of 1 mW.
DME- distance measuring equipment.
DOD- Department of Defense.
DR- dead reckon.
EW- electronic warfare.
FRP- Federal Radio Navigation Plan.
GMT- Greenwich Mean Time.
HZ- Hertz.
KHZ-- kilohertz.
LOP- line-of-position.
LORAN- Long Range Aid to Navigation.
LOS- line-of-sight.
MHZ-- megahertz.
MS- millisecond.
MW-- milliwatt.
NAV-MSG- NAVIGATION-message.
NAVSAT- navigation satellite.
NAVSTAR GPS- satellite Global Positioning
System.
NNSS- Navy Navigation Satellite System.
NTDS- Naval Tactical Data System.
OMEGA- VLF radio navigation.
P CODE- precise code.
PPS- pulses per second.
PROM- programmable read-only memory
RF- radio frequency.
SATNAV-- satellite navigation
S/D- synchro to digital.
SINS- Ship’s Inertial Navigation System.
TACAN- Tactical Air Navigation.
TCA- time of closest approach.
UT-- Universal Time.
VOR- VHF--omnidirectional range.
XPDU- expanded data processor unit.
AI-1
