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    ITU-R QUESTION 656-1999 Spectrum requirements for sound broadcasting《声音广播的频谱要求》.pdf

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    ITU-R QUESTION 656-1999 Spectrum requirements for sound broadcasting《声音广播的频谱要求》.pdf

    1、C:DOCUMENTS AND SETTINGSQGV33745MY DOCUMENTSDOWNLOADSR-QUE-SG06.65-1999-MSW-E.DOC 22.10.03 15.07.10 QUESTION ITU-R 65/6*Spectrum requirements for sound broadcasting (1999) The ITU Radiocommunication Assembly, considering a) that terrestrial sound broadcasting has commenced the transition from analog

    2、ue to digital emission; b) that digital technology needs a greater bandwidth although it provides for greater total information capacity, than its analogue counterpart, within a given bandwidth; c) that digital emission formats have different protection requirements to those determined for analogue

    3、emission; d) that digital emission can provide opportunities for new forms of broadcasting, including: high quality sound services; data broadcasting services; multimedia broadcasting services; interactive broadcasting services; e) that there is considerable interest in maximizing the efficient use

    4、of the broadcasting spectrum, decides that the following Question be studied 1 What is the anticipated demand for spectrum for terrestrial sound broadcasting applications during and following the transition to digital, taking into account both the current and new forms of service? 2 What protection

    5、requirements are needed for digital sound broadcasting services from other potential radiocommunication services that might be considered for shared use of the bands? further decides 1 that the results of the above studies should be included in a Recommendation to be forwarded to the ITU-R Radiocommunication Assembly and a relevant WRC; 2 that the above studies should be completed by 2005. _ _ *This Question should be brought to the attention of the World Broadcasting Union Technical Committee (WBU-TC).


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