PRETS 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
"This draft European Telecommunication Standard (ETS) provides specifications for the standardization of the characteristics of Receive-only Very Small Aperture Terminals (VSATs) operating as part of a satellite network (e.g. star@ meshed or point to point) used for the distribution of data. These VASTs have following characteristics: - they operate in the exclusive part of the Ku-band allocated to the Fixed Satellite Service (FSS)@ 12@50 to 12@75 GHz (Space-Earth)@ and in the shared parts of the Ku-band@ allocated to the FSS and Fixed Services (FS)@ 10@70 to 11@70 GHz (Space-Earth); - in these frequency bands liner polarisation is normally used and the system operates through satellites at 3 spacing; - they are designed for unattended operation; - they are limited to the reception of baseband digital signals; - they have an antenna diameter not exceeding 3@8 m@ or equivalent corresponding aperture. The equipment considered in this ETS comprises both the ""outdoor unit""@ usually composed of the antenna subsystem and associated Low Noise Block (LNB)@ and the ""indoor unit"" composed of the remaining part of the communication chain@ including the cable between these two units. This ETS applies to the VSAT with its ancillary equipment and its various terrestrial ports@ and operated under the conditions which are within the ranges of humidity@ temperature and supply voltage declared by the manufacturer. Requirements on EMC aspects are contained in ETS 300 673 [2]. This ETS does not contain any requirement@ recommendation or information about the installation of the VSATs. This ETS deals with two types of specification: - Specifications defined in order to protect other users of the frequency spectrum@ both satellite and terrestrial@ from unacceptable interference. In addition@ these specifications are specified for the purposes of electrical safety@ structural safety and solar radiation protection as well as protection from harmful interference. - Specifications related to characteristics which contribute to the quality of reception by providing the VSAT with minimum interference protection from other radio systems."
PRETS 300 157-1995 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)