m( STAT.] MULTILATATERATELECOMMUNICATIONS-OCT. 2 , 1947 (Chapter 11, art. 5 RR) (216-220) Allocation to Services Frequency Band and (Bandwidth) Regional Mc/e World-Wide Region 1 Region 2 Region 3 1 300-1700 1 300-1 600 1300-1 660 (400) (300) (360) 1 300-1 700 Aero- (400) a) Fixed nautical b) Mobile radio- i") navigation o10) 104) a) Aero- nautical 1 600-1 700 radio- (100) 1 660-1 700 navigation (40) b) Fixed Aero- c) Mobile nautical Meteoro- radio- logical navigation aids (radio in) sonde) 1 700-2 300 a) Fixed (600) b) Mobile in) 2 300-2 450 Amateur i") (150) 216 '"' In Region 2, the band 1 300-1 660 Mc/s is intended for an integrated system of electronic aids to air navigation and traffic control. Administrations of the other Regions should envisage the possibility of the future application of such a system on a world-wide basis. 217 '"' In the U.S .S.R ., the band 1 300-1 600 Mc/s is allocated for the aero- nautical radionavigation service. 218 "' In Region 2 and the United Kingdom, the use of the band 1 300-1 365 Mc/s is restricted to surveillance radar. 219 "' In Regions 1 and 3, the meteorological aids service may be operated in the band 1 700-1 750 Mc/s. 220 '"' In Region 2, Australia, New Zealand, Northern Rhodesia, Southern Rhodesia, the Union of South Africa, the territory under mandate of Southwest Africa, and the United Kingdom, the frequency 2 450 Mc/s is designated for industrir.l, scientific and medical purposes. Emissions must be confined within the limits of -50 Mc/s of that frequency. Radiocommunication services oper- ating within those limits must accept any harmful interference that may be Pxperienced from the operation of industrial, scientific and medical equipment. 1689
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