CEPT ERC REC 12-04 E-1995 Harmonised Radio Frequency Channel Arrangements for Digital Terrestrial Fixed Systems Operating in the Band 48 5 GHz - 51 4 GHz《在48 5GHz到51 4 GHz波段运行的模拟和数.pdf
《CEPT ERC REC 12-04 E-1995 Harmonised Radio Frequency Channel Arrangements for Digital Terrestrial Fixed Systems Operating in the Band 48 5 GHz - 51 4 GHz《在48 5GHz到51 4 GHz波段运行的模拟和数.pdf》由会员分享,可在线阅读,更多相关《CEPT ERC REC 12-04 E-1995 Harmonised Radio Frequency Channel Arrangements for Digital Terrestrial Fixed Systems Operating in the Band 48 5 GHz - 51 4 GHz《在48 5GHz到51 4 GHz波段运行的模拟和数.pdf(5页珍藏版)》请在麦多课文档分享上搜索。
1、 CEPT CEPT/ERC/REC 32-04*E 95 2326434 0032997 543 CEPTIERCIREC 12-04 E Page 1 Distribution: B CEPT/ERC/RECOMMENDATION 12-04 E (Stockholm 1995) HARMONISED RADIO FREQUENCY CHANNEL ARRANGEMENTS FOR DIGITAL TERRESTRIAL FIXED SYSTEMS OPERATING IN THE BAND 48.5 GHz - 51.4 GHz Text of the recommendation ci
2、dopted by Working Group “Spectrum Engineering” (WGSE): “The European Conference of Post and Telecommunications Administrations, considering 1. that CEPT should develop radio. frequency channel arrangements in consultation with organisations developing standards for radio systems, in order to make th
3、e most effective use of the spectrum available, 2. that the propagation characteristics of the band 48.5 GHz - 51.4 GHz are ideally suited to short range low and medium capacity digital fixed systems, 3. that the anticipated developments in telecommunications networks will require large numbers of s
4、hort range links in the supporting infrastructure, 4. that any radio frequency channel arrangement should incorporate a provision for the future introduction of improved equipment standards, noting Article 8 of the Radio Regulations allocates the band 48.5 GHz - 50.2 GHz on an equal primary basis to
5、 the Fixed, Fixed-Satellite arid Mobile services. Sharing criteria between Fixed and Mobile, and Fixed and Fixed-Satellite services may be required, Article 8 of the Radio Regulations allocates the band 50.2 GHz - 50.4 GHz on an equal primary basis to the Fixed, Earth Exploration Satellite (passive)
6、, Mobile and Space Research (passive) services, Sharing criteria between Fixed and Mobile, Fixed and Earth Expl.oration Satellite (passive), and Fixed and Space Research (passive) services are required, Article 8 of the Radio Regulations allocates the band 50.4 GHz - 5 1.4 GHz on an equal primary ba
7、sis to the Fixed, Fixed-Satellite and Mobile services, Sharing criteria between Fixed and Mobile, and Fixed and Fixed-Satellite services may be required, Article 8 of the Radio Regulations footnote 904 allocates the band 48.94 GHz - 49.04 GHz to the Radio Astronomy Service on a primary basis for spe
8、ctral line observations. In making assignments to stations of other services in this band, administrations are urged to take all practical steps to protect the Radio Astronomy Service from harmful interference. Co-ordination studies will be required to determine the appropriate method to be used, In
9、 some CEPT countries there are existing fixed systems that operate in bands contained within the band 48.5 GHz - 51.4 Gi-lz on national channel. arrangements and are not operating in accordance with the channel arrangements given in the Annex A, In some CEPr countries the band 48.5 GHz - 5 1.4 GHz i
10、s not currently available for the Fixed Service, Edition of August 26, 1996 CEPT CEPT/ERC/REC L2-04xE 95 2326939 0032998 488 CEPTIERCIREC 12-04 E Page 2 recommends that CEPT Administrations which have the band 48.5 GHz - 51.4 GHz available for the Fixed Service should follow the recommended radio fr
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- CEPTERCREC1204E1995HARMONISEDRADIOFREQUENCYCHANNELARRANGEMENTSFORDIGITALTERRESTRIALFIXEDSYSTEMSOPERATINGINTHEBAND485GHZ514GHZ
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