54 STAT.] MULTILATERAL-TELECOMMUNICATION-APR. 8, 1938 ARTICLE 30 Aeronautical Service of Public Correspondence [703] In the absence of special arrangements (article 13 of the Con- vention) the provisions of the present Regulations concerning the pro- cedure for the exchange of or accounting for radio communications shall be applicable, in a general way, to the aeronautical radio service of public correspondence. ARTICLE 31 Service of Low-Power Mobile Radiotelephone Stations* [704] §1. The service of these stations must be performed by an op- erator holding a radiotelephone operator's certificate (article 10, §8). [705] §2. (1) The frequency of 1,650 kc (181.8 m) shall be a calling- wave and the distress-wave for the maritime mobile radiotelephone service with low-power ship stations working in the parts of the band of 1,560 to 3,635 kc (192.3 to 82.53 m) in which radiotelephone services are admitted (art. 7, §7). [706] (2) (a) In the European region, aside from distress calls and distress traffic, urgent and safety signals and messages for which it is compulsory, it may only be used for calling and reply. [707] (b) This provision shall not preclude the use of other frequen- cies which may be fixed by the administrations for radio- telephone service with coast stations or ship stations designated by them. [708] (3) In other regions, its use shall not be mandatory. [709] §3. The following provisions shall apply only to the service of mobile radiotelephone stations using the frequency of 1,650 kc (181.8 m) as a calling- and distress-wave, in which the carrier-wave power in the antenna does not exceed 100 watts within the band [except by regional agreements provided for in article 10, §8 (4)] [No. 269]. [710] §4. (1) In order to call 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. [711] (2) In order to call ship stations, either the name of the ship or a call signal conforming to the provisions of article 14 may be used as a radiotelephone call signal. [713] (3) In case the name and the nationality of the ship cannot be ascertained beyond doubt, the call signal or the name shall be pre- ceded by the name of the owner. [714] (4) The foregoing provisions of this paragraph shall not be applicable where automatic call-signal devices are used. [712] *When the occasion arises, these provisions may be applied to aircraft stations. 1567 Aeronautical service of public correspond- ence. 49 Stat. 2401. Service of low-power mobile radiotele- phone stations. Ante, p. 1487. Ante, p. 1433. Ante, p. 1487. Ante, p. 1491.
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