"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."
PRETS 300 157-1991 history
1996PRETS 300 157-1996 Satellite Earth Stations and Systems (SES); Receive-Only Very Small Aperture Terminals (VSATs) Operating in the 11/12 GHz Frequency Bands Second Edition
1995PRETS 300 157-1995 Satellite Earth Stations and Systems (SES); Receive-Only Very Small Aperture Terminals (VSATs) Used for Data Distribution Operating in the 11/12 GHz Frequency Bands Second Edition
1992PRETS 300 157-1992 Satellite Earth Stations (SES); Receive-Only Very Small Aperture Terminals (VSATs) Used for Data Distribution Operating in the 11/12 GHz Frequency Bands
1991PRETS 300 157-1991 Satellite Earth Stations (SES); Receive-Only VSATs Used for Data Distribution (DE/SES-2001)