SIST ETS 300 159:2000

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.QRVSUHMHPQLHNYHQþQLKSatellite Earth Stations and Systems (SES); Transmit-only or transmit-and-receive Very Small Aperture Terminals (VSATs) used for communications operating in the Fixed Satellite Service (FSS) 11/12/14 GHz frequency bands33.060.30Radiorelejni in fiksni satelitski komunikacijski sistemiRadio relay and fixed satellite communications systemsICS:Ta slovenski standard je istoveten z:ETS 300 159 Edition 2SIST ETS 300 159:2000en01-maj-2000SIST ETS 300 159:2000SLOVENSKI
STANDARD



SIST ETS 300 159:2000



EUROPEANETS 300 159TELECOMMUNICATIONSeptember 1996STANDARDSecond EditionSource: ETSI TC-SESReference: RE/SES-02022ICS:33.060.30Key words:VSAT, FSSSatellite Earth Stations and Systems (SES);Transmit-only or transmit-and-receiveVery Small Aperture Terminals (VSATs)used for communications operating in theFixed Satellite Service (FSS) 11/12/14 GHz frequency bandsETSIEuropean Telecommunications Standards InstituteETSI SecretariatPostal address: F-06921 Sophia Antipolis CEDEX - FRANCEOffice address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCEX.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: secretariat@etsi.frTel.: +33 92 94 42 00 - Fax: +33 93 65 47 16Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and theforegoing restriction extend to reproduction in all media.© European Telecommunications Standards Institute 1996. All rights reserved.SIST ETS 300 159:2000



Page 2ETS 300 159: September 1996Whilst every care has been taken in the preparation and publication of this document, errors in content,typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to"ETSI Editing and Committee Support Dept." at the address shown on the title page.SIST ETS 300 159:2000



Page 3ETS 300 159: September 1996ContentsForeword.51Scope.72Normative references.83Definitions and abbreviations.83.1Definitions.83.2Abbreviations.94Test report.95Safety.105.1Mechanical construction.105.2Lightning.106Radio Frequency (RF).106.1Spurious radiation.106.2On-axis spurious radiation.116.3Transmit carrier centre frequency stability.126.4Off-axis EIRP emission density within the band 14,0 GHz to 14,5 GHz.126.5Carrier suppression.136.6Antenna transmit gain pattern (co-polar and cross-polar).136.7Transmit polarization discrimination.156.8Antenna receive gain pattern (co-polar and cross-polar).156.9Receive polarization discrimination.167Mechanical.167.1Pointing stability.167.2Antenna pointing accuracy capability.177.3Polarization angle alignment capability.178Control and monitoring.17History.18SIST ETS 300 159:2000



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Page 5ETS 300 159: September 1996ForewordThis second edition European Telecommunication Standard (ETS) has been produced by the SatelliteEarth Stations and Systems (SES) Technical Committee of the European Telecommunications StandardsInstitute (ETSI).Transposition datesDate of adoption of this ETS:6 September 1996Date of latest announcement of this ETS (doa):31 December 1996Date of latest publication of new National Standardor endorsement of this ETS (dop/e):30 June 1997Date of withdrawal of any conflicting National Standard (dow):30 June 1997Every ETS prepared by ETSI is a voluntary standard. This ETS may contain text concerning type approvalof the equipment to which it relates. This text should be considered as guidance only and does not makethis ETS mandatory.SIST ETS 300 159:2000



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Page 7ETS 300 159: September 19961ScopeThis European Telecommunication Standard (ETS) provides specifications for the standardisation of thecharacteristics of transmit-only or transmit-and-receive Very Small Aperture Terminals (VSATs) operatingas part of a satellite network (e.g. star, mesh or point-to-point) used for the distribution and/or exchange ofinformation between users.In such a network a Centralised Control and Monitoring Function (CCMF) is responsible for the monitoringand control of VSATs.These VSATs have the following characteristics:-operating in the exclusive part of the Ku-band allocated to the Fixed Satellite Services (FSS), 14,00to 14,25 GHz (Earth-Space), 12,50 to 12,75 GHz (Space-Earth), and/or in the shared parts of theKu-band, allocated to the FSS and Fixed Services (FS), 14,25 to 14,50 GHz (Earth-Space) and/or10,70 to 11,70 GHz (Space-Earth);-in these frequency bands linear polarization is normally used and the system operates throughsatellites at 3° spacing;-designed usually for unattended operation;-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 theantenna sub-system 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 applies to the VSAT with its ancillary equipment and its various terrestrial ports, and operatedunder the conditions which are within the ranges of humidity, temperature and supply voltage declared bythe manufacturer.EMC specifications are contained in ETS 300 673 [3].This ETS does not contain any specification or information on the installation of the VSATs.The specifications have been selected to ensure an adequate level of compatibility for VSATs. The levels,however, do not cover extreme cases which may occur in any location but with a low probability ofoccurrence. In such a case it may be necessary to use special protection supplied to either the source ofinterference, or the interfered part or both.This ETS deals with two types of specification:-specifications defined in order to protect other users of the frequency spectrum, both satellite andterrestrial, from unacceptable interference. In addition, these specifications are specified for thepurposes of structural safety and lightning protection as well as protection from harmfulinterference;-specifications related to characteristics which contribute to the quality of reception by providing theVSAT with minimum interference protection from other radio systems. These specifications apply ifrequired by the manufacturer.SIST ETS 300 159:2000



Page 8ETS 300 159: September 19962Normative referencesThis ETS incorporates, by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text and the publications are listedhereafter. For dated references, subsequent amendments to, or revisions of, any of these publicationsapply to this ETS only when incorporated in it by amendment or revision. For undated references the latestedition of the publication referred to applies.[1]ITU Radio Regulations, Article 1.[2]EN 50083-1 (1993): "Cabled distribution systems for television and soundsignals - Part 1: Safety requirements".[3]prETS 300 673: "Radio Equipment and Systems (RES); ElectroMagneticCompatibility (EMC) standard for 4/6 GHz and 11/12/14 GHz Very SmallAperture Terminal (VSAT) equipment and 11/12/13/14 GHz Satellite NewsGathering (SNG) Transportable Earth Station (TES) equipment".[4]ETS 300 456: "Satellite Earth Stations and Systems (SES); Test Methods forVery Small Aperture Terminals (VSATs) operating in the 11/12/14 GHzfrequency bands".[5]ETS 300 160: "Satellite Earth Stations and Systems (SES); Control andmonitoring functions at a Very Small Aperture Terminal (VSAT)".[6]ETS 300 161: "Satellite Earth Stations and Systems (SES); Centralised controland monitoring functions for VSAT networks".[7]ITU-R Recommendation 732 (1992): "Method for statistical processing ofearth-station antenna side-lobe peaks".3Definitions and abbreviations3.1DefinitionsFor the purposes of this ETS, the following definitions apply:outdoor unit: The part of the VSAT intended to be installed outdoor, as declared by the manufacturer, oras indicated in the user documentation.The outdoor unit usually comprises three main parts:a)the antenna sub-system which converts the incident radiation field into a guided wave and viceversa;b)the LNB, which is a device that amplifies, with very low internal noise, the received signals in theRadio Frequency (RF) band and converts them to intermediate frequencies;c)the power amplifier which amplifies the low level RF signals for transmission through the antennasubsystem.NOTE 1:The installation equipment (means of attachment) is outside the scope of this ETS.However, the antenna structures and other components directly mounted on theantenna and forming an integral part of it, are subject to the specifications of this ETS.indoor unit: Is composed of the remaining part of the VSAT. It is generally installed inside the buildingsand is connected to the outdoor unit. The connection cable between the outdoor and indoor unit belongsto the indoor unit.SIST ETS 300 159:2000



Page 9ETS 300 159: September 1996ancillary equipment: Equipment used in connection with a VSAT is considered as ancillary if the threefollowing conditions are met:a)the equipment is intended for use in conjunction with a VSAT to provide additional operationaland/or control features (e.g. to extend control to another position or location); andb)the equipment cannot be used on a stand alone basis, to provide user functions independently of aVSAT; andc)the absence of the equipment does not inhibit the operation of the VSAT.nominated bandwidth: The bandwidth of the VSAT radio frequency transmission nominated by themanufacturer. The nominated bandwidth is wide enough to encompass all spectral elements of thetransmission which have a density greater than the specified spurious levels and to take account of thetransmit carrier frequency stability.NOTE 2:This definition is chosen to allow flexibility regarding adjacent channel interferencelevels which will be taken into account by operational procedures depending on theexact transponder carrier assignment situation.spurious radiation: Any radiation outside the nominated bandwidth.cross-polarization discrimination: The ratio of the on-axis co-polar gain to the cross-polar gain in agiven direction, at a transmit or receive frequency. It is usually expressed in dB.transmissions disabled state: A
VSAT is in this state when it is not authorised by the CCMF to transmit.carrier-on state: A
VSAT is in this state when it is authorised by the CCMF to transmit and when ittransmits a signal.carrier-off state: A
VSAT is in this state when it is authorised by the CCMF to transmit, but when it doesnot transmit any signal.NOTE 3:The existence of a carrier-off state depends on the system of transmission used.For
VSATs designed for continuous transmission mode there may be no carrier-offstate.3.2AbbreviationsFor the purposes of this ETS, the following abbreviations apply:CCMFCentralised Control and Monitoring FunctionsEIRPEquivalent Isotropically Radiated PowerFSFixed ServiceFSSFixed Satellite ServiceITUInternational Telecommunication UnionITU-RITU Radiocommunication SectorLNBLow Noise Block (low noise amplifier and down converter)RFRadio FrequencyVSATVery Small Aperture Terminal4Test reportThe test report shall be as specified in ETS 300 456 [4] and shall contain:-the value of the nominated bandwidth declared by the manufacturer;the value of the nominated bandwidth shall not exceed 5 times the "Occupied Bandwidth" [1];-the results of the tests;-all operational conditions and parameters.SIST ETS 300 159:2000



Page 10ETS 300 159: September 19965Safety5.1Mechanical constructionPurpose:Protection of operating personnel, the public and goods from insecure structures.Specification:This specification applies to the outdoor unit only.The outdoor unit, including mounted and structural components, (but excluding the means of attachment)shall be designed to support the following main loads due to:-the weight of the antenna and structural components;-the wind speed.Loading due to snow and ice is not considered.At
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