1、Page 1 T/R25-02 E Recommendation T/R 25-02 (The Hague 1972) INFORMATION TO FACILUATE THE CO-ORDINATION FREQUENCIES FOR THE LAND MOBILE SERVICE IN THE 80,160 AND 460 MHz BANDS Recommendation proposed by the “Radiocommunications” Working Group T/WG 3 (R) Text of the Recommeridatioii adopted by the “Te
2、lecomminicntiors” Commission: “The European Conference of Postal and Telecommunications Administrations, considesing (a) that some directives on other aspects of co-ordination in frontier areas are necessary as an extention to (b) that it is desirable that the frequencies to be assigned should as fa
3、r as possible be taken from a range of nominal (c) that at present two ranges of nominal frequencies are used: Recommendation T/R 25-01 (Interlaken, 1968), frequencies which is uniform in all countries of the CEPT, 68,000 MHz + n x 12.5 kHz 146,000 MHz + n x 12.5 kHz 450,000 MHz + n x 12.5 kHz (n =
4、1, 2, 3, 4, .) and (d) that the use of frequency modulation normally allows higher protection ratios to be used and consequently makes co-ordination easier, (e) that it is very important to take account of the latest knowledge on the subject of radio propagation and of the relevant information on pr
5、otector ratios and on the minimum values of field strength to be protected, (f) that with a view to reducing harmful interference, the radiated power should be as low as is practicable, 68,010 MHz + n x 20 kHz 146,010 MHz + n x 20 kHz 450,010 MHz + n x 20 kHz (nnO, 1,2, 3,4, 5, .), recommends for co
6、-ordination requirements in frontier areas, 1. that those Administrations which have not yet made a definitive selection for the purpose of designating nominal frequencies or who intend to change the range of nominal frequencies they use should select nominal frequencies within the ranges 68,000 MHz
7、 + n x 12.5 kHz 146,000 MHz + n x 12.5 kHz 450,000 MHz + n x 12.5 kHz (n = 1, 2, 3, 4, .) and 2. that for radiotelephony in the land mobile service, frequency (or phase) modulation is the type to be preferred, 3. that where material information relating to propagation and protection ratios does not
8、appear in separate agreements. Administrations should take the latest CCIR documentation on the subject into consideration, 4. that the power to be considered should be the effective radiated power and, wherever practicable, the effective radiated power should not exceed: 25 watts for frequencies be
9、low 174 MHz, and 50 watts for frequencies above 400 MHz. In all cases, the effective power and the height of the antenna aerial should be as low as possible in relation to the area to be served.” Edition of September 15, 1988 Recommandation T/R 25-02 (adopte en 1972) / Recommendation T/R 25-02 (adop
10、ted in 1972) Information de la suite donne 1 Information regarding implementation a = La Recommandation est applique. / The Recommendation has been implemented. b = Lapplication de la Recommandation est prvue. Implementation of the Recommendation is planned. c = Lapplication de la Recommandation nes
11、t pas prvue. 1 Implementation of the Recommendation is not planned. No No. 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 - - Pays Countries 2 Alleimgrie (Rp. fd. d)/ Germiiy (Fed. Rep. of) Aiitriche 1 Austria Belgiqiie 1 Belgium Chypre 1 Cypriis Danetnark 1 Denmark Espagiie
12、1 Spain Finlande 1 Firiland France Grce Greece Irlande 1 Ireland Islaride 1 Iceland Italie 1 Italy Liecitetisteii Ltixetnboiirg Malte 1 Malta Monaco Norvge 1 Norrvay Pays-Bas 1 Netherlarids Porttigal Royaiiine- Uni 1 United Kirigdorn Saiiit-Marin 1 Sari Marino Siide 1 Sweden Suisse Switzerland Tiirq
13、itie 1 Tiirkey Vatican (Cit) 1 (City) Yoiigoslavie 1 Yugoslavia Infor- mation 3 a a a a C a b a a a a a a a Edition du 15 septembre 1988 / Edition of September 15, 1988 -. Remarques / Remarks 4 La modification des sries de frquences nest pas prvue court terme. I Modification to the range of frequenc
14、ies is not planned in the short term. Avec application en plus des accords particuliers. 1 With application adding the particular agreement. Avec application en plus des accords particuliers. / With application adding the particular agreement. La modification des sries de frquences nest pas prvue court terme. 1 Modification to the range of frequencies is not planned in the short term. Cependant, lapplication des limites de puissance nest pas prvue. 1 However, the application of power limits is not planned.
