SIST ETS 300 157:2000

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Satellite Earth Stations and Systems (SES); Receive-only Very Small Aperture Terminals (VSATs) operating in the 11/12 GHz frequency bands33.060.30Radiorelejni in fiksni satelitski komunikacijski sistemiRadio relay and fixed satellite communications systemsICS:Ta slovenski standard je istoveten z:ETS 300 157 Edition 2SIST ETS 300 157:2000en01-maj-2000SIST ETS 300 157:2000SLOVENSKI
STANDARD



SIST ETS 300 157:2000



EUROPEANETS 300 157TELECOMMUNICATIONSeptember 1996STANDARDSecond EditionSource: ETSI TC-SESReference: RE/SES-00009ICS:33.060.30Key words:satellite, earth station, RO, VSAT, FSS, radioSatellite Earth Stations and Systems (SES);Receive-only Very Small Aperture Terminals (VSATs)operating in the11/12 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 300 157:2000



Page 2ETS 300 157: 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 300 157:2000



Page 3ETS 300 157: September 1996ContentsForeword.51Scope.72Normative references.83Definitions and abbreviations.83.1Definitions.83.2Abbreviations.94Test report.95Safety.95.1Mechanical construction.95.2Lightning.96Radio Frequency (RF).106.1Spurious radiation.106.2Antenna receive gain pattern (co-polar and cross-polar).106.3Receive polarization discrimination.117Mechanical.127.1Pointing stability.127.2Antenna pointing accuracy capability.127.3Polarization angle alignment capability.128Control and monitoring.13History.14SIST ETS 300 157:2000



Page 4ETS 300 157: September 1996Blank pageSIST ETS 300 157:2000



Page 5ETS 300 157: 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 300 157:2000



Page 6ETS 300 157: September 1996Blank pageSIST ETS 300 157:2000



Page 7ETS 300 157: September 19961ScopeThis European Telecommunication Standard (ETS) provides specifications for the standardisation of thecharacteristics of Receive-Only (RO) Very Small Aperture Terminals (VSATs) operating as part of asatellite network (e.g. star, meshed or point-to-point) used for the distribution of information.These VSATs have the following characteristics:-operating in the exclusive part of the Ku-band allocated to the Fixed Satellite Services (FSS),12,50 to 12,75 GHz (Space-Earth), and/or in the shared parts of the Ku-band, allocated to the FSSand Fixed Services (FS), 10,70 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 Low Noise Block (LNB), and the "indoor unit" composed of theremaining 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 [2].This ETS does not contain any specifications 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 applied 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 300 157:2000



Page 8ETS 300 157: 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]EN 50083-1 (1993): "Cabled distribution systems for television and soundsignals - Part 1: Safety requirements".[2]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".[3]ETS 300
...