63 STAT.] MI LTILATERAL-TELECOMMI'NICATIONS-OCT. 2, 1947 (Chapter 111, art. R) O- UKR) 12400-12714kc/s 16530-16952kc/s 22070-22400kc/s 267 d) Coast stations, telegraphy 4238- 4368ke/s 6357- 6526kc/s 8476- 8746kc/s 12714-13130kc/s 16952-17290kc/s 22400-22660kc/s 268 (2) Within the bands listed in 266, the following bands are reserved exclusively for calling: 4 177 - 4187 kc/s 6 265.5 - 6 280.5 kc/s 8354 - 8374 kc/s 12631 -12561 kc/s 16708 -16748 kc/s 22220 -22270 kc/s 2f9 (3) In Region 2, the frequency band 2088.5-2093.5 kc s is reserved exclusively for calling (telegraphy only). 270 § 10. In order to minimize interference in the frequency bands allocated for radiotelephony in the maritime mobile service between 4 000 and 23 000 kc/s administrations agree to apply the following rules: 271 a) radiotelephone emissions of ship stations, and of aircraft stations when communicating with stations of the maritime mobile service, shall comply with the frequency tolerance require- ments prescribed for coast stations in appen- dix 3; 272 h) the recommendations for radiotelephony opera- tion given in article 34, including duplex chan- nelling, should be applied wherever possible. 1709
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