1、page 1 Disbibubon: B Recommendation T/R 22-01 (Malaga-Torremolinos 1975) FREQUENCIES LIKELY TO BE ALLOCATED TO INTERNATIONAL RAILWAYS Recommendation proposed by the “Radiocommunications“ Working Group TIWG 3 (R) Text of the Recommendation adopted by the “Telecommunications“ Commission: “The European
2、 Conference of Postal and Telecommunications Administrations, considering that railways are making increasingly extensive use of radio links to facilitate the operation of railway traffic and increase its safety, that it would be desirableladvantages to be able to use radio equipment in several coun
3、tries m order to facilitate communications with international trains without excluding national requirements, that it would be essential to select working frequencies in a common band, that the Union Internaticmale des Chemins de fer (UC) is currentiy studying this problem within its working parties
4、 and in 1966, asked for the co-operation of the CEPT, that following a study which also took into account the possible involvement of neighbouring couniries which were not members of the CEPT, a reply from the CEP was given to UIC in 1969, that the planning of frequencies in CEPT membex countries wi
5、ll depend on the frequencies to be adopted for international railways, that the World Administrative Maritime Radio Conference held in Geneva in 1974 took into considem- tion, when allocating on-board communications frequencies to ships, the JGrequency bands reserved for international railways, Edit
6、ion of September 15,1988 STD-CEPT T/R 22-OL E-ENGL 1988 2326434 00L4b43 402 T/R 2241 E Pwe 2 recommends 1. that frequencies likely to be allocated by Administrations to international railways, without excluding national requirements. be selected from the following frequencies, Land Mobile Station Ba
7、se Station 457.600 MHz 457.625 MHz 457.650 MHz 457.675 MHz 457.700 MHZ 457.725 MHz 457.750 MHz 457.775 MHZ 457.800 MHZ 457.825 h4Hz 457.850 MHz 457.875 MHZ 457.900 MHZ 457.925 MHz 457.950 MHz 457.975 MHz 458.000 MHz 458.025 MHz 458.050 MHz 458.075 MHz 458.100 MHz 467.600 MHz 467.625 MHz 467.650 MHz
8、467.675 MHz 467.700 MHz 467.725 MHz 467.750 MHz 467.775 MHz 467.800 MHz 467.825 MHz 467.850 MHz 467.875 MHZ 467.900 MHz 467.925 MHz 467.950 MHz 467.975 MHz 468.000 MHz 468.025 MHz 468.050 MHz 468.075 MHz 468.100 MHz 2. that phase or fiequency modulation be used with a required bandwidth not exceeding 16 kHz, 3. that the effective radiated power be as low as possible for the service zone envisaged.” Edition of September 15,1988 W 2326414 0014132 O12 9 T/R 22-01 Frequencies likely to be allocated to international railways
