Glossary of Terms or Abbreviations

The following terms or acronyms may be used in any manual or document published by PACA. Reproduction in part or whole is allowed without prior approval. The Document Control Office reserves the rights to include such a listing in any PACA manual or document prior to publishing.

ADF Automatic Direction Finder

AFC Automatic Frequency Control

AFIS Automatic Flight Inspection System

AGC Automatic Gain Control

AIP Aeronautical Information Publication

AM Amplitude Modulation

ANSP Air Navigation Service Provider

ATC Air Traffic Control

ATIS Automatic Terminal Information Service

CATV Cable Television

CVOR Conventional VOR

CMN Control Motion Noise

CW Continuous Wave

DDM Difference in Depth of Modulation

DGNSS Differential Global Navigation Satellite System

DME Distance Measuring Equipment

DVOR Doppler VOR

EIRP Equivalent Isotropic Radiated Power

EMI/EMC Electromagnetic Interference/Compatibility

FM Frequency Modulation

FMS Flight Management System

GNSS Global Navigation Satellite System

GP Glide Path

IF Intermediate Frequency

IFR Instrument Flight Rules

ILS Instrument Landing System

IM/MM/OM Inner/Middle/Outer Marker

INS Inertial Navigation System

ISM Industrial Scientific Medical

ITE Information Technology Equipment

ITU International Telecommunication Union

LF/MF/HF Low/Medium/High Frequency

LOC Localizer

MDS Minimum Discernible Signal

MHA Minimum Holding Altitude

MSL Mean Sea Level