T-144 -

This European Telecommunication Standard (ETS) is applicable to two-way (transmit and receive) Very Small Aperture Terminal (VSAT) satellite earth stations operating in the framework of a satellite network for digital communication purposes as defined in ETS 300 159 [1]. In these networks there is a set of control and monitoring functions at each VSAT and a separate set of Centralised Control and Monitoring Functions (CCMF). The control and monitoring functions are designed to limit interferences to users of the frequency spectrum due to a fault condition at the VSAT. This ETS is applicable to VSATs operating in any network configuration including star, mesh and point to point connections. This ETS defines the requirements for the control and monitoring functions in a VSAT and is only applicable to the satellite access subsystem of the VSAT. ETS 300 161 [2] contains requirements for the Centralised Control and Monitoring Functions (CCMF). This ETS does not include any requirement, recommendation or information about the installation of the VSAT.

This European Telecommunication Standard (ETS) provides specifications for the standardisation of the characteristics of transmit/receive Very Small Aperture Terminals (VSATs) operating as part of a satellite network used for the distribution and/or exchange of data between users. In such a network a Centralised Control and Monitoring Function (CCMF) is responsible for the monitoring and control of remote VSATs.
These VSATs have the following characteristics:
- operating in the exclusive part of the Ku-band allocated to the Fixed Satellite Services (FSS), 14,00 to 14,25 GHz (Earth-Space), 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), 14,25 to 14,50 GHz (Earth-Space) and 10,70 to 11,70 GHz (Space-Earth);
- in these frequency bands linear polarisation is normally used and the system operates through satellites at 3° spacing;
- designed for unattended operation;
- limited to the reception and transmission of baseband digital signals;
- equipped with one, or several terrestrial ports but the total aggregate information bit rate transmitted towards the satellite through these ports shall be limited to 2,048 Mbit/s;
- 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 power amplifier and 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 does not contain any requirement, recommendation or information about the installation of the VSATs. Nor is this ETS intended to apply to VSAT network hub stations. This ETS deals with two types of specification:
a) Essential normative requirements (indicated in Clause 4)
Requirements are specified in order to protect other users of the frequency spectrum, both satellite and terrestrial, from unacceptable interference. In addition, requirements are specified for the purposes of electrical safety, structural safety and solar radiation protection as well as protection from harmful interference. The test and measurement procedures associated with the normative requirements detailed in Clause 4 of this ETS shall be performed and the criteria met in order to demonstrate compliance with this ETS.
b) Recommendations (indicated in Clause 5)
These are related to characteristics which contribute to the quality of reception by providing the VSAT with minimum interference protection from other radio systems. The test and measurement procedures associated with the informative recommendations detailed in Clause 5 of this ETS are given for verification purposes only. The compliance with the recommendations will not be taken as a condition to comply with this ETS. All tests related to the requirements shall be performed and the results shall be entered in the data sheet of the test report. The ability to comply with the recommendations shall also be noted in the data sheet of the test report.

This European Telecommunication Standard (ETS) defines the requirements for two-way Very Small Aperture Terminals (VSATs) operating in the framework of a satellite network for digital communications purposes. In these networks there is a set of control and monitoring functions at each VSAT and a separate set of Centralised Control and Monitoring Functions (CCMF). The control and monitoring functions are designed to limit interferences to users of the frequency spectrum due to a fault condition at a VSAT. ETS 300 160 [2] defines the requirements for the control and monitoring functions in a VSAT as defined in ETS 300 159 [1]. These control and monitoring functions are only applicable to the satellite access subsystem of the VSAT. This ETS contains the requirements for the CCMF. NOTE: The use of the term "centralised" does not imply any particular topology VSAT system. It refers to the fact that functions are implemented at system level and not in every one of the VSAT.

The scope of this European Telecommunication Standard (ETS) is to give minimum specifications for the standardisation of the technical characteristics of satellite receiving earth stations, capable of receiving audiovisual signals and associated data. The equipment considered in this ETS, is confined to the "outdoor unit" that consists of the antenna with the feed and the low-noise amplifier with its associated down-converter, referred to as Low-Noise Block converter (LNB). The output interface towards the indoor unit is defined at the LNB output connector. Consequently the coaxial cable link to the "indoor unit", the intermediate frequency amplifier and the demodulator are not covered in this ETS. Standards for the "indoor unit" are the responsibility of CENELEC. This ETS is applicable to earth stations which receive audiovisual programmes in the Fixed Satellite Services (FSS) frequency ranges, from 10,70 GHz to 11,70 GHz and from 12,50 GHz to 12,75 GHz (Ku band). The Television Receive Only (TVROs) are classified into two different types according to the corresponding services:
   Type A for collective reception, in particular:
      - cable distribution head ends (Community Antenna Television: CATV);
      - community reception systems (Master Antenna Television: MATV).
   Type B for individual reception, i.e. Direct-To-Home (DTH) equipment.
A clear distinction is made, wherever applicable between specifications for Type A and for Type B in the various Clauses of this ETS. The received television signals can be PAL, SECAM, NTSC or the different MAC systems, all with the associated TV sound, and possibly other audio programmes.
Any other new TV systems (e.g. digital) may be received in the future, provided those systems operate with the FSS ku band. Data may be present as coded signals inside television signals.
This ETS specifies:
a) Requirements (indicated in Clause 5)
The requirements cover mechanical, electrical safety and the interface with the indoor unit as well as some electromagnetic compatibility aspects.
The test and measurement procedures associated with the normative requirements detailed in Clause 5 of this ETS, shall be met in order to qualify compliance with this ETS.
b) Recommendations (indicated in Clause 6)
The recommendations are related to the quality of reception and are intended to assist manufacturers harmonise equipment design and to enable equipment distributors and end-users to better determine equipment performance.
The test and measurement procedures associated with the informative recommendations detailed in Clause 6 of this ETS, are given for verification purposes only. The compliance with the recommendations will not be taken as a condition to comply with the standard for TVRO equipment.

This European Telecommunication Standard (ETS) provides 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 in the exclusive space-to-earth part of the Ku-band allocated to the Fixed Satellite Service (FSS), 12,50 to 12,75 GHz and the shared parts of the Ku-band, allocated to FSS and the Fixed Service (FS), 10,7 to 11,7 GHz;
- designed for unattended operation;
- limited to reception of baseband digital signals;
- equipped with one or several terrestrial output ports;
- 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 does not contain any requirement, recommendation or information about the installation of the VSATs. Nor is this ETS intended to apply to VSAT network hub stations.
This ETS deals with two types of specification:
a) Essential normative requirements (indicated in Clause 4)
Requirements are specified in order to protect other users of the frequency spectrum, both satellite and terrestrial, from unacceptable interference. In addition requirements are specified for the purposes of electrical safety, structural safety and solar radiation protection as well as protection from harmful interference. The test and measurement procedures associated with the normative requirements detailed in Clause 4 of this ETS shall be met in order to qualify compliance with this ETS.
b) Recommendations (indicated in Clause 5)
Recommendations are related to characteristics which contribute to the quality of reception by providing the VSAT with a minimum interference protection from other radio systems. The test and measurement procedures associated with the informative recommendations detailed in Clause 5 of this ETS are given for verification purposes only. The compliance with the recommendation will not be taken as a condition to comply with this ETS.
All tests related to the requirements shall be performed and the results shall be entered in the data sheet of the test report. The ability to comply with the recommendations shall also be noted in the data sheet of the test report.

DE/SES-02002

DE/SES-02001

DE/SES-03005

DE/SES-04001

DE/SES-03004