ETSI - PRETS 300 157
Satellite Earth Stations (SES); Receive-Only VSATs Used for Data Distribution (DE/SES-2001)
| Organization: | ETSI |
| Publication Date: | 1 January 1991 |
| Status: | inactive |
| Page Count: | 20 |
scope:
This scope of this ETS is to provide 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 or equivalent corresponding aperture.
The equipment 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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