CEPT T R 25-09 E-1995 Designation of Frequencies in the 900 MHZ Band for Railway Purposes (Chester 1990 Revised at Budapest 1995)《铁路900MHZ频段中频率名称命名 1990年切斯特 1995年在布达佩斯修订》.pdf

《CEPT T R 25-09 E-1995 Designation of Frequencies in the 900 MHZ Band for Railway Purposes (Chester 1990 Revised at Budapest 1995)《铁路900MHZ频段中频率名称命名 1990年切斯特 1995年在布达佩斯修订》.pdf》由会员分享，可在线阅读，更多相关《CEPT T R 25-09 E-1995 Designation of Frequencies in the 900 MHZ Band for Railway Purposes (Chester 1990 Revised at Budapest 1995)《铁路900MHZ频段中频率名称命名 1990年切斯特 1995年在布达佩斯修订》.pdf（3页珍藏版）》请在麦多课文档分享上搜索。

1、STD-CEPT TIR 25-09 E-ENGL 1775 2326414 0034663 2TO D T/R 25-09 E Page 1 Disiribution: B Recommendation T/R 25-09 E (Chester 1990, revised at Budapest 1995) DESIGNATION OF FREQUENCIES IN THE 900 MHZ BAND FOR RAILWAY PURPOSES Recommendation proposed by the Frequency management Working Group of the ERC

2、: The European Conference of Postal and Telecommunications Administrations, considering: that railways are making increasingly extensive use of radio communications to facilitate the operation of railway traffic and increase its safety; that it would be desirable to be able to use common railway rad

3、io equipment in different countries in a common frequency band as well as for border crossing traffic; that CEFT Recommendation TIR 22-01 E allocated a band of two times 0.5 MHz (21 channels) in the 450 MHZ band for international railways without excluding national requirements; that an advanced fre

4、quency economic digital radio system being developed under the aegis of the Union Internationale des Chemins de fer (IC) shouid cover the international requirements without excluding national requirements for non public radiommmunication of the railways; that the amount of frequency spectrum require

5、d for railway purposes is different in different countries; that the introduction by the railways of this radio system would liberate frequencies presently used by railways; that CEFT Recommendation TIR 75-02 E concerning the use of fequenCies in the band 862-960 MHz by the mobile except aeronautica

6、l mobile service includes sub-bands 870-888/915-933 MHz for use by land mobile systems preferably for non-public networks, and that digital systems should start at the lower end of that band; that the equipment must be capable of operating over the designated frequency band; noting: - that it is unl

7、ikely that fequenCies will be available in most CEPT countries in the 900 MHZ band before the year 2000 and in some CEFT countries not before the year 2005; - that some of these requirements could be covered by GSM or any other public networks; Edition of September 8,1995 STDoCEPT TIR 25-09 E-ENGL 3

8、995 = 2326434 0034664 137 T/R 25-09 E pace 2 recommends: 1. that in CEPT countries the international requirements without excluding national requirements of railways for non-public digital radiocomunimtion system in the 900 MHz band should be covered by selecting appropriate sub-bands from the desig

9、nated band 876-880 MHz (mobile station transmit) paired with 921- 925 MHz (base station transmit) with a duplex separation of 45 MHZ; 2. that close liaison between CEPT and UIC should be established in order to provide by the year 2005 the designated frequencies for international use: further recomm

10、ends: that after the introduction of this radio system most of the frequencies presently used would be liberated by railways.” Edition of September 8,1995 232b414 0014147 543 = EST F FIN l/Et 25-09 Designation of frequencies in the 900 MHz band for railway purposes Under study Under Study Yes Adm I

11、Imp1 I Remarks AUT I P97 I GRC HNG I BEL I Planned I No Planned CZE Planned DNK Planned I I IRL ISL LIE LVA NOR POL Planned No No Planned Planned Yes Planned POR No ROU Under study S Planned SUI Planned SVN Planned TUR Planned HOL Ives 1 Reservation with respect to the frequency bands HRV 1 Planned I Other frequencies Regulation on radio frequency bands in the Republic of Slovenia