Chapter XIII.
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Chap. XIII, art. 33 RR) (775–779) 1. Calling Frequencies of Ship Stations 775 § 26.
(1)The calling frequencies assigned to ship stations are included within the following bands: 4177 to 4 187 kc/s 6 265.5 to 6 280.5 kc/s 8 354 to 8 374 kc/s 12 531 to 12 561 kc/s 16 708 to 16 748 kc/s 22 220 to 22 270 kc/s 776
(2)In the 4 000 kc/s maritime mobile service band, the calling frequencies must be uniformly distributed within the calling band. They are preferably spaced 1 kc/s apart. The extreme frequencies assignable are 4 178 and 4 186 kc/s as indicated in appendix 10. 777
(3)In each of the other maritime mobile service bands between 4 000 and 18 000 kc/s, the calling frequencies must be in harmonic relationship with those in the 4 000 kc/s calling band. In the 22 000 kc/s calling band, the preferable spacing of calling frequencies is 5 kc/s. 778 § 27. The administration to which a ship station is subject shall assign to it a series of calling frequencies including one frequency in each of the bands in which the station is equipped to transmit. In the bands between 4 000 and 18 000 kc/s, the frequencies assigned to each ship station shall be in harmonic relationship. Each administration must take the necessary steps to assign such harmonic series of calling frequencies to ships in accordance with an orderly system of rotation so as to distribute these frequencies uniformly throughout the calling bands as outlined in 776. The same system of uniform distribution shall be applied in the assignment of calling frequencies in the 22 000 kc/s calling band. 779 § 28.
(1)The centre calling frequency in each of the calling bands indicated in 775 shall be reserved as far as possible for 63 Stat. 1872 (780–785) (
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