Page:United States Statutes at Large Volume 49 Part 2.djvu/539

 TELECOMMUNICATION CONVENTION. DECEMBER 9, 1932. [6OG] § 3. (1) In order to cull coast stations, the call signal or the geographical name of the place, as it appears in the nomenclature of coast and ship stations, or in the nomenclature of stations operating special services, may be used as a radiotelephone call signal. [510] (2) In order to call ship stations, either the name of the 2555 ship or a call signal conforming to the provisions of article 14 of the Ante, p. 2493. present Regulations may be used as a radiotelephone call signal. [611] (3) In case the name and the nationality of the ship can- not be ascertained beyond doubt, the call signal or the name shall be preceded by the name of the owner. [612] § 4. (1) The wave of 1,650 kc (182 m) is a calling-wave for the radiotelephone mobile service. It may be used under the conditions stipulated in article 7, § 7 [table, notes (11) and (13)]. This rule shall Ante, p.2459. not preclude the use of other frequencies which may be determined by the administrations for the radiotelephone service with coast or ship stations designated by them. [513] (2) Coast and ship stations using the 1,650-kc (182-m) calling-wave must have available at least one other wave in the band 1,530 to 2,000 kc (196.1 to 150 m). This second wave shall be printed in boldface type in the nomenclature of the stations, to indicate that it is the normal working-wave of the station. The working-waves of these stations must be selected in such a manner as to avoid inter- ference with the other radio stations. [514] (3) In addition to the normal working-wave, coast and ship stations may use additional waves in the band mentioned. These waves shall be indicated in the nomenclature in ordinary type. [516] § 5. (1) In case of distress, if it is not possible to use the general distress wave of 500 kc (600 m) for radiotelephony, the wave of 1,650 kc (182 m) may be used for distress call and traffic. The station may also use any other wave in order to attract attention, signal its position, and obtain help. [616] (2) The radiotelephone distress signal shall consist of the spoken expression MAYDAY (corresponding to the French pronun- ciation of the expression "m'aider"). [517] § 6. The provisions concerning radiotelegraph service and, in particular, the provisions referring to interference, to the distress, urgent, and safety services, to the closing of services, and to calling (arts. 16, 20, 22, 23, and 18 of the present Regulations) shall, so far as it is practicable and reasonable, be applicable to the mobile radio- telephone service. [518] § 7. The procedure given in appendix 12 to the present Regula- tions may be applied in the service of low-power mobile radiotelephone stations. 104019·-~6-PT 11-;13