1、Page 1 G9 TR25-05 E Recommendation T/R 25-05 (Nice 1985) PLANNING AND COORDINATION OF THE LAND MOBILE SERVICES OPERATING IN THE BANDS 174-230 MHz (TELEVISION BAND III) Recommendation proposed by “Radiocommunications” Working Group T/WG 3 (R) Text of the Recornmeridation adopted by the “Telecommiriic
2、ations” Commission : “The European Conference of Postal and Telecommunications Administrations, considering (a) that development of the land mobile service in the band 174-230 MHz has recently commenced, (b) that it is desirable that channelling arrangements for the land mobile services in the membe
3、r countries of the CEPT should be harmonized, (c) that such arrangements will help relieve difficulties of coordination, in particular in frontier areas, and thereby minimise delays in reaching agreement on assignments in those geographical areas, (d) that, where possible, uniform frequencies should
4、 be assigned in all the CEPT countries, (e) that use of the same type of modulation would also facilitate coordination between Administrations, (f) that in order to reduce the risks of harmful interference, the lowest possible antenna height and the lowest possible (g) that the latest information co
5、ncerning propagation and the minimum protected field strength necessary to obtain (h) that Band III will continue to be used by most CEPT countries for television, recommends in order to facilitate the coordination of land mobile assignments in the band 174-230 MHz in frontier areas, 1. that, wherev
6、er possible, the plan cited in Annex I shall be utilised for the land mobile service in the member countries of the CEPT, 2. that the Administrations which have not yet reached a final decision on designating the nominal frequencies for assignment or which are in a position to alter their normal uti
7、lisation plan shall assign frequencies in the series: 174,000 MHz -I- n x 12.5 kHz (n = 1, 2, 3, 4, .), 3. that frequency or phase modulation shall be used, 4. that effective radiated power (e.r.p.) shall not exceed 25 watts and that, where possible, the e.r.p. and the antenna height shall be adjust
8、ed in order to obtain complete coverage of the required service area, 5. that the coordination criteria given in Annex II shall be used for coordinating the land mobile service assignments in this frequency band between the CEPT member countries.” radiated power should normally be used, the performa
9、nce required ought to be considered, Edition of September 15, 1988 .-, = 2326434 0006882 3 B1 TIR 25-05 E Page 3 Mi I M2 I 82 I 83 I M3 I S Annex I 1 Edition of September 15, 1988 CHANNELLING PLAN FOR FREQUENCY SUB-BANDS BETWEEN 174 AND 230 MHz 174 175.8 183.6 111.5 111.5 207.5 215.5 223A 238 Abbrev
10、iations : S = Single frequency simplex sub-bands. B = Base station transmit sub-bands. M = Mobile station transmit sub-bands. Notes: 1. Separation distance for simplex or two-frequency duplex operation, 9 MHz. 2. S Sub-bands (the Single Frequency Simplex Sub-bands) may also be utilised by low power
11、systems or services operating on a non-interference basis to land mobile or broadcasting services. - - _ Previous page is blank TIR 25-05 E Page 4 Annex II TECHNICAL CRITERIA FOR COORDINATION 1. The minimum protected median field strength shall be 22 dB (pV/m). 2. Calculations shall be carried out u
12、sing CCIR Recommendation 370-4 (Geneva 1982). Appropriate values for the interfering field for 10% of the time and 50% of the locations shall be used. Variations in field strength as a function of receiving antenna height above ground are currently being considered by the CCIR. 3. The protection rat
13、io shall be 10 dB. Edition of September 15, 1988 Recommandation T/R 25-05 (adopte en 1985) / Recommendation T/R 25-05 (adopted in 1985) Information de la suite donne / Information regarding implementation a = La Recommandation est applique. / The Recommendation has been implemented. b = Lapplication
14、 de la Recommandation est prvue. Implementation of the Recommendation is planned. c = Lapplication de la Recommandation nest 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 Allemagne
15、(Rp. fd. ti)/ Gerrtiatiy (Fed. Rep. of) Autriche 1 Austria Belgique 1 Belgiimi Chypre Cypriis Darieiriark 1 DenmarIc Espagne I Spairi Firilaiide 1 Firiland Fsance Grce / Greece Irlande 1 Ireland Islaride 1 Iceland Italie Italy Liechteiisteiri Lzixertzboiirg Malte 1 Malta Monaco Nosvge 1 Norway Pays-
16、Bas 1 Netherlands Portiigal Royairme- Uni 1 United Kiiigdom Saint-Masiri 1 San Masitio Siide Sweden Suisse I Switzerland Ttirqiiie Tuskey Vatican (Cit) 1 (City) Yoiigoslavie 1 Yiigoslavia Infor- mation Edition du 15 septembre 1988 / Edition of September 15, 1988 - 7 Remarques 1 Remarks 4 A Etude. Under study.
