1、STD-CEPT CEPT/ERC/REC 12-03 E-ENGL Lqqb a 232b414 0014547 177 W CEPTERCIAEC 12-03 E Page 1 Disiribution: B CEPT/ERC/RECOMMENDATION 12-03 E (Bonn 1994) HARMONISED RADIO FREQUENCY CHANNEL ARRANGEMENTS FDR DIGITAL TERRESTRIAL FIXED SYSTEMS OPERATING IN THE BAND 17.7 GHz TO 19.7 GHz Recommendation propo
2、sed by the Working Group “Spectrum Engineering” (WGSE) Text of the recommendation adopted by the “European Radiocommunications Committee ” (ERC): The European Conference of Postal and Telecommunications Administrations, considering 1. that CEPT should develop radio fiequency channel arrangements in
3、consultation with organisations developing standards for radio systems, in order to make the most effective use of the spectrum available, 2. that compatibility between systems of different capacities should be assured, 3. that for low capacity digital systems there exist many links among CEPT count
4、ries using various arrangements according to Recommends 6 of ITU-R Rec. F. 595, 4. the main deployment is foreseen by the majority of CEPT Administrations for medium and high capacity digital systems, noting a) that Article 8 of the Radio Regulations allocates in Region 1 the band 17.7 GHz - 19.7 GH
5、z on equal primary basis to the Fixed, Fixed-Satellite and Mobile services. Sharing criteria between Fixed and Mobile, and Fixed and Fixed-Satellite services may be required, b) that radio kequency channel arrangements have been recommended by ITU-R for medium and high capacity digital systems in th
6、e 17.7 GHz - 19.7 GHz band, recommends 1. that for medium and high capacity digital systems, CEPT Administrations should follow the recommended radio fiequency channel arrangements for the band 17.7 GHz - 19.7 GHz (Annex A), 2. that for low capacity digital systems channel frequency arrangements may
7、 be accommodated, on a national basis, within any of the high capacity channels or guard bands.” Edition of August 26,1996 STD-CEPT CEPTIERCIREC 12-03 E-ENGL 1796 = 232b414 001Q548 003 5 CEPTERCFIEC 12-03 E Annex A, Page 1 Annex A Let fo fn fn be the centre frequency (MHz) of the 17.70 - 19.70 GHz b
8、and (Po =18700 m), be the centre frequency (MHz) of a radio frequency channel in the lower half of the band, be the centre frequency of a radio frequency channel in the upper half of the band, then the frequencies (MIIZ) of individual channels are expressed by the following relationships: CO-CHANNEL
9、 ARRANGEMENT (see Fig. 1) for systems with a carrier spacing of 1 io e: lower half of the band: upper half of the band h=fo-l000+110n fn = fo + 10 + 110 n for systems with a carrier spacing of 55 MHZ: lower half of the band: upper half of the band h=fo- 1000+55n fn = fo + 10 + 55 n wheren= 1, . 8 wh
10、eren = 1, . 17 for systems with a carrier spacing of 27.5 IvEk lower half of the band: upper half of the band: h = fo - lo00 + 27.5 n 6i = fo + 10 + 27.5 n where n = 1, . . . 35 for systems with a carrier spacing of 13.75 MHZ: lower half of the band: upper half of the band fn = fo - lo00 + 13.75 n h
11、 = fo + 10 + 13.75 n wheren = 1, . 70 Edition of August 26,1996 STDOCEPT CEPT/ERC/REC 12-01 E-ENGL L77b H 2326434 O014549 T4T m CEPT/ERC/REC 12-03 E Annex A, Pqe 2 -f 43.15 61.25 + t - H V I, I 1 L II II IL I“ I., I CI ,li Il, II Y 4 11.15 GO Iretuml Return iaol 1000 1000 d) - Edition of August 26,
12、1996 2326434 CEPTERC/REC 12-03 Adm AUT DNK 0014098 024 = Imp1 Remarks Planned Yes Harmonised radio frequency channel arrangements for digital terrestrial fixed systems operating in the band 17.7 GHz to 19.7 GHz FIN HNG HOL Yes Excluding channel arrangement d Yes Yes Intent of this Recommendation is met through the national footnote H 125 of NTFA I I Istudv EST Under L POR Yes SVN Yes 2.9.1997. Regulation on radio licenses, art. 14 (ff.Gaz. of SVN, No. 50/97)
