Page:United States Statutes at Large Volume 63 Part 2.djvu/400

 63 STAT.] MUILTILATERAL-TELECOMMIUNICATIONS-OCT. 2, 1947 (Chapter II, art. 6, 7 RR) (232- 5) ARTICLE 6 Special Rules Relating to Use of Classes of Emissions 232§1. The use of class B emissions is forbidden in all sta- tions. However, it is permitted for emergency (reserve) in- stallations in ships and for lifeboats, liferaft and survival craft equipments under the conditions fixed by article 33 (see 712). 233 §2. Only classes Al or Fl emissions are authorized for stations of the fixed and maritime mobile services working on frequencies in the band 110-160 kc/s. As an exception to this rule, class A2 emissions may be employed within the band 110-125 kc/s exclusively for the transmission of time signals. ARTICLE 7 Special Rules for the Assignment and Use of Frequencies 234 § 1. (1) The countries, members of the Union, recognize that among frequencies which have long distance propaga- tion characteristics, those between 5 000 and 30 000 kc/s are particularly useful for long distance communications, and agree to make every possible effort to reserve this band for such communications. Whenever frequencies in this band are used for short or medium distance communications, the mini- mum power necessary shall be employed. 235 (2) In order to reduce the requirements for frequencies in this band, and thus to prevent harmful interference to long distance radiocommunications, the administrations are encouraged to use every other means of communication wherever practicable. 1697

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