2RfiS Certificates for radio- telephone operators. INTERNATIONAL RADIO CONVENTION. NOYEMBER 25,1927. nications at the sending and re~eiving speed required for obtaining a second-class certificate. (b) When these stations do not participate in this service but normally act in case of distress, and work on a particular wave without thereby disturbing other radio services, it devolves upon each interested government to fix the conditions for obtaining the certificate. (2) As an exception it is provisionally conceded that the govern- ment of New Zealand may issue a special certificate, for which it shall fix the requirements, to operators of small ships of its nationality which do not go far from the coast of that cOllntry and' which engage only to a limited extent in the international service of public corre- spondence and in the general work of mobile stations. §4. (1) Before becoming chief operator of a ship station of the first cl8.Sfl (Article 20, section 2) a first-class operator must have had at least one year of experience as operator on board a ship or in a coast station. (2) To become chief operator of a ship station of the second class (Article 20, section 2) a first-class operator must have had at least six months' experience as operator on board a ship or in a coast station. (3) In order to carry on the service as a first-class operator in an air- craft, the operator must have had the number of flying hours in the radio service fixed by the Adhunistration which issues the certificate. §5. Operators who have successfully passed the exanrination for a second-class certificate shall received from their Government tem- porary certificates authorizing them to embark as chief operators ill vessels of the third class (Article 20, section 2). After having had six months' service on board ship they may receive the final second-class certificate authorizing them to carry out similar duties in vessels of the second class. Oertificates jor radiotelephone operators §6. (1) There is only one class of radiotelephone operator's certifi- cate. (2) This certificate shall state the professional qualifications of the operator with regard to: (a) Knowledge of the adjustment and operation of radiotelephone apparatus. (b) Ability to transnrit and receive clearly conversation by tele- phone apparatus. (c) Knowledge of the regulations applying to the exchange of radiotelephone communications and the part of the radiotelegraph regulations relating to safety of life. (3) Holders of radiotelephone operators' certificates can only be employed in ships, aircraft, etc., fitted with a low-power radiotele- phone installation (300 watts input at maximum) and only for the telephone service. (4) Radiotelephone operators in the aeronautical service must have had a minimum number of hours of flight on board an aircraft fixed by the Adnrinistration concerned. (5) The holder of a first class radiotele~raph operators' certificate as well as the holder of a second class radlOtelegrap'h operators' certifi- cate possessing a radiotelephone operator's certificate may carry on the radiotelephone service ill any mobile station. §7. Each Administration shall take the necessary measures to require operators to observe the secrecy of correspondence and to pre- vent to the greatest possible extent the fraudulent use of certificates.
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