A radiocommunication service for the purpose of self-training, intercommunication and technical investigation carried out by amateurs, that is, by duly authorized persons interested in radio technique solely with a personal aim and without pecuniary interest. [ NTIA ] [ RR ]
AMATEUR SERVICE
Meaning of AMATEUR SERVICE in English
Telecommunication standard terms English vocab. Английский словарь стандартных телекоммуникационных терминов. 2012