Page:United States Statutes at Large Volume 49 Part 2.djvu/431

TELECO:\IMUXICATIOX CONVENTIOX. DECEMBER 9, 1932. 2447 Pi] Visual broadcasting station: A station carrying on a visual Deftnitions-Contd. broadcasting service. l"] Amateur station: A station used by an "amateur", that is, by a duly authorized person interested in radio technique solely with a. personal aim and without pecuniary interest. [16] Private experimental station: A private station intended for experiments looking to the development of radio technique or SCience. (168] Private radio station: A private station, not open to public correspondence, which is authorized solely to exchange with other "private radio stations" communications concerning the private business of the license holder or holders. PS] Frequency assigned to a station: The frequency assigned to a. station is the frequency occupying the center of the frequency band in which the station is authorized to work. In general, this frequency i~ that of the carrier wave. [17] Frequency band oj an emission: The frequency band of an emis- sion is the frequency band actually occupied by this emission for the type of transmission and for the signaling speed used. P8] Frequency tolerance: The frequency tolerance is the maximum permissible separation between the frequency assigned to a station and the actual frequency of emission. [11] Power oj a radio transmitter: The power of a radio transmitter shall be the power supplied to the antenna. [ 201 In the case of a modulated wave transmitter, the power in the antenna shall be represented by two numbers, one indicating the value of the carrier-wave power supplied to the antenna and the other indicating the actual maximum rate of modulation used. [II] Telegraphy: Telecommunication by any system of telegraph signaling. The word "telegram" also covers "radiotelegram", except when the text expressly precludes such a meaning. [22] Telephony: Telecommunication by any system of telephone signaling. ra] General networlc oj telecommunication channels: The whole of the existing telecommunication channels open to public service, with the exception of the radio channels of the mobile service. [2'] Aeronautical sen'ice: A radio service carried on between aircraft stations and land stations and by aircraft stations communicating among themselves. This term shall also apply to fixed and special radio services intended to insure the safety of aerial navigation. [25] Fixed service: A service carrying on radio communication of any kind between fixed points, with the exception of the broadcasting services and special services. [26] Special service: A telecommunication service carried on espe- cially for the needs of a specific service of general interest and not