REPORT BO.473-5-1990

CHARACTERISTICS OF RECEIVING EQUIPMENT FOR THE BROADCASTING-SATELLITE SERVICE


 

 

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标准号
REPORT BO.473-5-1990
发布日期
1990年01月01日
实施日期
2010年08月10日
废止日期
中国标准分类号
/
国际标准分类号
/
发布单位
ITU-R - International Telecommunication Union/ITU Radiocommunication Sector
引用标准
28
适用范围
Introduction The characteristics to be adopted for receiving equipment forbroadcasting-satellite systems offer a wide range of choice. These characteristics influence the size@ mass and complexity of the satellite required to provide a given quality of service because of the compromise that must be made between receiver sensitivity and the power radiated by the satellite. They themselves are affected by the broadcasting standards selected. In particular@ the characteristics of the receiving equipment will depend on whether it is required to receive only television signals (with only one or with more than one@ accompanying sound signal)@ or only sound signals@ or both. The present Report gives information about the most important of these characteristics on the basis of the results presented in the documents listed in the references of this Report. Many of the contributions received relate to equipment operating in the 12 GHz frequency band. It appears that signals broadcast from satellites could be received@ not only by equipments of new design@ but in some cases by existing receivers fitted with adaptive devices. As satellite broadcasting is capable of delivering a high quality TV signal to the general public@ comparable to that of the studio@ it seems practicable to set a higher quality target for receivers. A distinction should be made between installations intended for community reception and for individual reception.




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