Abbreviation Definition
AARAAcadiana Amateur Radio Association
AARCAustin Amateur Radio Club
AARCAruba Amateur Radio Club
AARCAlbemarle Amateur Radio Club
AARCAmes Amateur Radio Club
AARCAlger Amateur Radio Club
AARGAyr Amateur Radio Group
AARGAurora Amateur Radio Group
AARLAmerican Amateur Radio League
AASAdvanced Antenna Systems
ACSAuxiliary Communications Service
ADARSAntrim and District Amateur Radio Society
ADIFAmateur Data Interchange Format
ADRAdditional Dialog Recording
ADRFAnalog Devices Radio Frequency
AERPAverage Effective Radiated Power
AFAudio Frequency
AFCAntennas For Communications
AGLAbove Ground Level
AISGAntenna Interface Standards Group