PRETS 300 157-1991
卫星地球站（SES）；用于数据分发的仅接收 VSAT（DE/SES-2001）

Satellite Earth Stations (SES); Receive-Only VSATs Used for Data Distribution (DE/SES-2001)

被代替

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标准号

PRETS 300 157-1991

发布

1991年

发布单位

ETSI - European Telecommunications Standards Institute

替代标准

PRETS 300 157-1992

当前最新

PRETS 300 157-1996

 

 

适用范围

"This scope of thisETS is toprovide specifications for the standardisation of the characteristics of receive-only Very Small Aperture Terminals (VSATs) operating as part of a satellite network used for the distribution of data. These VSATs have the following characteristics: - operating as part of a satellite network used for the distribution of data. These VSATs have the following characteristics: - Operating in the exclusive space-to-earth part of the Ku-Band allotted to the fixed satellite service@ 12@50 to 12@75 GHz and the shared parts of the Ku-band@ allocated to the FSS and FS@ 10@7 to 11@7 GHz; - designed for unattended operation; - equipped with one or several output (i.e. terrestrial) ports; - antenna diameter not exceeding 3@7 m orequivalent corresponding aperture. Theequipment considered in this standard comprises both the ""outdoor unit""@ usually composed of the antenna subsystem and associated Low Noise Block (LNB)@ and the ""indoor unit"" composed of the remainig part of the communication chain@ including the cable between these two units. This standard does not contain any requirement@ recommendation or information about the installation of the VSATs. Nor is this standrd intended to apply to VSAT network hub stations."

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