ETSI ETS 300 423 ed.1 (1995-08)
Satellite Earth Stations and Systems (SES); Land Mobile Earth Stations (LMES) operating in the 1,5 / 1,6 GHz bands providing voice and/or data communications
Satellite Earth Stations and Systems (SES); Land Mobile Earth Stations (LMES) operating in the 1,5 / 1,6 GHz bands providing voice and/or data communications
DE/SES-05004
Satelitske zemeljske postaje in sistemi (SES) – Kopenske mobilne zemeljske postaje (LMES), ki delujejo v pasovih 1,5 GHz in 1,6 GHz in zagotavljajo zvokovne oziroma podatkovne komunikacije
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Satelitske zemeljske postaje in sistemi (SES) – Kopenske mobilne zemeljske postaje (LMES), ki delujejo v pasovih 1,5 GHz in 1,6 GHz in zagotavljajo zvokovne oziroma podatkovne komunikacijeSatellite Earth Stations and Systems (SES); Land Mobile Earth Stations (LMES) operating in the 1,5 / 1,6 GHz bands providing voice and/or data communications33.060.30Radiorelejni in fiksni satelitski komunikacijski sistemiRadio relay and fixed satellite communications systemsICS:Ta slovenski standard je istoveten z:ETS 300 423 E13SIST ETS 300 423en01-VHSWHPEHU3SIST ETS 300 423SLOVENSKI
STANDARD
SIST ETS 300 423 E1:2003
EUROPEANETS 300 423TELECOMMUNICATIONAugust 1995STANDARDSource: ETSI TC-SESReference: DE/SES-05004ICS:33.060.20Key words:LMES, voice, dataSatellite Earth Stations and Systems (SES);Land Mobile Earth Stations (LMESs)operating in the 1,5 / 1,6 GHz bands providingvoice and/or data communicationsETSIEuropean 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 1995. All rights reserved.SIST ETS 300 423 E1:2003
Page 2ETS 300 423: January 1995Whilst 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 300 423 E1:2003
Page 3ETS 300 423: January 1995ContentsForeword.51Scope.72Normative references.73Definitions and abbreviations.83.1Definitions.83.2Abbreviations.84Test report.95Safety.95.1Mechanical construction.95.2Electrical safety, power voltages.95.3Radio frequency radiation protection.96Radio Frequency (RF).106.1Unwanted emission outside the bands 1 631,5 to 1 634,5 MHz and 1 656,5to 1 660,5 MHz.106.2Maximum unwanted emission within the 1 631,5 to 1 634,5 MHz and 1 656,5 to1 660,5 MHz bands.126.3Maximum EIRP emission density in the nominated bandwidth.136.4Electro-Magnetic (EM) immunity.146.5Protection of the radio astronomy service from emissions produced by the MESoperating in the band 1 660,0 to 1 660,5 MHz.146.6Protection of electronic equipment from excessive EM fields produced by the MES.157MES Control and Monitoring Functions (CMFs).157.1Monitoring functions.157.1.1Processor monitoring.157.1.2Transmit frequency generation sub-system.167.2Power on/reset.167.3Network control reception and authorisation.167.3.1Network control authorisation.167.3.2Network control reception.178Initial burst transmission.189Electrical safety while loading and unloading hazardous fuels or gases.1810EM immunity between 2 GHz and 3 GHz.1811Compliance with RF specifications under conditions of shock and vibration.1912Method of attachment of the Externally Mounted Equipment (EME) to a vehicle.1913Network Control Facilities (NCFs) for MES networks.19Annex A (normative):Environmental and test conditions.20A.1Environmental conditions.20A.2Test conditions.20Annex B (normative):Out-of-band unwanted emissions above 960 MHz - test procedure.21SIST ETS 300 423 E1:2003
Page 4ETS 300 423: January 1995B.1Introduction.21B.2Measuring apparatus.21B.3Equipment Under Test (EUT).21B.4Special Test Equipment (STE).21B.5Test set-up.22B.6Measuring procedure.22B.7Alternative measurement procedure.22Annex C (normative):In-band unwanted emissions - test procedure.23C.1Introduction.23C.2Measuring apparatus.23C.3Equipment Under Test (EUT).23C.4Special Test Equipment (STE).23C.5Test set-up.23C.6Measuring procedure.24C.7Alternative measuring procedure.24Annex D (normative):EIRP density - test procedure.25D.1Introduction.25D.2Measuring apparatus.25D.3Equipment Under Test (EUT).25D.4Special Test Equipment (STE).25D.5Test set-up.25D.6Measuring procedure.25History.26SIST ETS 300 423 E1:2003
Page 5ETS 300 423: January 1995ForewordThis European Telecommunication Standard (ETS) has been produced by the Satellite Earth Stations andSystems (SES) Technical Committee of the European Telecommunications Standards Institute (ETSI).Transposition datesDate of adoption of this ETS:29 June 1995Date of latest announcement of this ETS (doa):30 November 1995Date of latest publication of new National Standardor endorsement of this ETS (dop/e):31 May 1996Date of withdrawal of any conflicting National Standard (dow):31 May 1996SIST ETS 300 423 E1:2003
Page 6ETS 300 423: January 1995Blank pageSIST ETS 300 423 E1:2003
Page 7ETS 300 423: January 19951ScopeThis European Telecommunication Standard (ETS) provides specifications for the standardisation of thecharacteristics of Mobile Earth Stations (MESs) using geostationary satellites with both transmit andreceive capabilities in order to ensure general safety and to limit interference to radiocommunicationservices.The geostationary satellite networks referred to in this ETS operate under the Land Mobile SatelliteService (LMSS). The MESs operate as a part of a satellite network providing voice and/or datacommunications.The frequency bands under which the MESs operate should be within the following bands:LMSSMESs transmit1 631,5 - 1 634,5 MHz1 656,5 - 1 660,5 MHzMESs receive1 530 - 1 533 MHz1 555 - 1 559 MHzThese MESs generally have the following characteristics:-the MESs could be either vehicle mounted or portable equipment;-the MES could consist of a number of modules including suitable interfaces to the user.The main specifications are contained in three categories related to:-safety: to protect personnel, public and goods from unsafe operating conditions or equipment;-unwanted emissions: to protect terrestrial and satellite radio services from harmful interference;-MES control and monitoring: to specify a minimum set of Control and Monitoring Functions(CMFs) to be implemented on each MES in order to minimise the probability that they originateunwanted transmissions that may give rise to harmful interference to other systems.This ETS deals with two types of specification:-specifications defined in order to protect other users of the frequency spectrum from unacceptableinterference. In addition, these specifications are specified for the purposes of general safety;-specifications related to matters of general safety, minimisation of interference to other users of theradio spectrum and for the provision of protection of the MESs against electromagnetic interferencefrom other systems. These specifications apply if required by the manufacturer.2Normative referencesThis ETS incorporates, by dated or undated references, 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]IEC 215 (1987): "Safety requirements for radio transmitting equipment".[2]CISPR 22 (1993): "Limits and methods of measurement of radio disturbancecharacteristics of information technology equipment".[3]IEC 510-2-1 (1978): "Methods of measurement for radio equipment used insatellite earth stations, Part 2: Measurements for sub-systems".SIST ETS 300 423 E1:2003
Page 8ETS 300 423: January 1995[4]prETS 300 424 (1994): "Satellite Earth Stations and Systems (SES); NetworkControl Facilities (NCF) for Land Mobile Earth Stations (LMESs) operating in the1,5/1,6 GHz bands providing voice and/or data communications".[5]IEC 801-3 (1984): "Electromagnetic compatibility for industrial processmeasurement and control equipment; Part 3: Radiated electromagnetic fieldrequirements".[6]CISPR 16 (1987): "Specifications for radio interference measuring apparatusand measurements methods".3Definitions and abbreviations3.1DefinitionsFor the purposes of this ETS, the following definitions apply:directional antenna: An antenna with a transmit gain equal to or greater than 10 dBi.Installable Equipment (IE): An equipment which is intended to be installed in a vehicle. An IE mayconsist of one or several interconnected modules as follows:Internally Mounted Equipment (IME) and Externally Mounted Equipment (EME): The manufacturerindicates which modules are intended to be Externally Mounted Equipment (EME); the remainingmodule(s) are then defined as Internally Mounted Equipment (IME). Where different specifications applyto IME and EME, this is noted in the relevant text.nominated bandwidth: The nominated bandwidth encompasses all spectral elements of thetransmission which have a level greater than the specified spurious levels. The nominated bandwidth iswide enough to take account of the transmit carrier frequency stability. The nominated bandwidth is withinthe LMSS transmit frequency band within which the MES operates. The bandwidth of the MES radiofrequency transmission is nominated by the manufacturer and included in the data sheet of the test report.Portable Equipment (PE): A portable equipment is generally intended to be self-contained, free standingand portable. A PE would normally consist of a single module, but may consist of several interconnectedmodules. In some cases different specifications apply to PE and this is noted in the relevant text.unwanted emissions: Unwanted emissions are those falling outside the nominated bandwidth.3.2AbbreviationsFor the purposes of this ETS, the following abbreviations apply:CMFControl and Monitoring FunctionEIRPEquivalent Isotropically Radiated PowerEMElectro-MagneticEMEExternally Mounted EquipmentEUTEquipment Under TestIEInstallable EquipmentIMEInternally Mounted EquipmentLMESLand Mobile Earth StationLMSSLand Mobile Satellite ServiceMESMobile Earth StationNCFNetwork Control FacilitiesPEPortable EquipmentRFRadio Frequencyrmsroot mean squaressecondSTESpecial Test EquipmentSIST ETS 300 423 E1:2003
Page 9ETS 300 423: January 19954Test reportThe test report shall contain:-the value of the nominated bandwidth, declared by the manufacturer;-the results of the tests;-all parameters and operational conditions.5Safety5.1Mechanical constructionPurpose:Protection of operating personnel, the public and goods from insecure or unsafe structures.Specification:For Installable Equipment (IE) and Portable Equipment (PE) the mechanical design, construction andfinish of the equipment shall conform to IEC 215 [1], section 3, paragraph 9.1.Verification:Verification shall be demonstrated by documentary evidence and visual inspection.5.2Electrical safety, power voltagesPurpose:Protection of operating personnel and the public from electric shock.Specification:The electrical safety of the equipment shall be in accordance with paragraphs 13, 14, 15 and 16 andAppendix B of IEC 215 [1].Verification:Conformance shall be demonstrated by documentary evidence and visual inspection.5.3Radio frequency radiation protectionPurpose:To indicate the distance from the MES below which RF power densities in excess of 8 W/m2 may beexperienced, when averaged over a 6 minute period.Specification:The radiating part of the equipment (which includes the exterior of any radome or other antenna enclosurewhere fitted) shall be labelled with a warning notice which shall be clearly visible when the equipment is inits normal operating configuration. This notice shall indicate the closest distance to the radiating part withinwhich a person may approach the equipment without experiencing radio frequency power density levels inexcess of 8 W/m2, when under worst case conditions (e.g. maximum power, maximum on/off ratio),averaged over a 6 minute period. This notice shall also state that before approaching the radiating partwithin any distance closer than that indicated, the MES equipment shall be switched off or otherwisedisabled so that it shall not transmit.SIST ETS 300 423 E1:2003
Page 10ETS 300 423: January 1995Where the equipment is vehicle mounted a warning notice providing the same information as that affixedto the radiating part shall be provided for fixing in the vehicle near to and clearly visible from the normaloperating position of the IME. In addition, for vehicle mounted equipment where the radiating part ismounted in a position where it is not normally visible to a person standing on the ground next to thevehicle, further warning labels shall be provided with instructions that they be attached to the vehicle so asto be clearly visible to anyone attempting to climb on to the part of the vehicle where the radiating part ofthe equipment is mounted.In the case where the antenna is enclosed in a radome or other antenna enclosure and no RF powerdensity greater than 8 W/m2, when under worst case conditions (e.g. maximum power, maximum on/offratio) averaged over a 6 minute period, is produced outside of this radome or antenna enclosure, then it isnot necessary to label the radiating part or provide labels for the vehicle in the manner indicated above.Instead, the radiating part shall be clearly labelled with a warning that the MES equipment shall beswitched off, or otherwise disabled, so that it shall not transmit before any work requiring the removal ofthe radome or antenna enclosure takes place. Where the equipment is vehicle mounted, a labelcontaining the same warning shall be provided, to be mounted in the vehicle near to, and clearly visiblefrom, the normal operating position of the IME.Verification:Verification of the distance below which exist RF power densities in excess of 8 W/m2, when under worstcase conditions (e.g. maximum power, maximum on/off ratio) averaged over a 6 minute period, shall bedemonstrated by documentary evidence. The manufacturer shall quantify the worst case conditions.6Radio Frequency (RF)In this clause, whenever a change of limit between adjacent frequency bands occurs, the lower of the twolimits shall apply at the transition frequency.6.1Unwanted emission outside the bands 1 631,5 to 1 634,5 MHz and 1 656,5 to 1 660,5 MHzPurpose:Protection of other terrestrial and satellite services from emissions caused by MESs outside the bands1 631,5 to 1 634,5 MHz and 1 656,5 to 1 660,5 MHz.Specification:The unwanted emissions from MESs outside the band 1 631,5 to 1 634,5 MHz and 1 656,5 to1 660,5 MHz within which the MES is designed to operate shall be below the following limits.For unwanted emissions below 960 MHz, the MESs shall meet the requirements of CISPR 22 [2] for classB equipment with carrier on given in table 1.Table 1Limits of unwanted emissions at a test distance of 10 m in any 120 kHz bandFrequencyQuasi-peak limits (dBµV/m)30 MHz to 230 MHz30230 MHz to 960 MHz37The unwanted emission EIRP above 960 MHz in the measurement bandwidth in all directions shall notexceed the limits in table 2.SIST ETS 300 423 E1:2003
Page 11ETS 300 423: January 1995Table 2Frequency rangeCarrier OnCarrier OffMHzEIRP limit (dBpW)Measurementbandwidth (kHz)EIRP limit (dBpW)Measurementbandwidth (kHz)
960,0 - 1 525,049100481001 525,0 - 1 559,0491001731 559,0 - 1 600,049100481001 600,0 - 1 625,87410048 (note 5)1001 625,8 - 1 631,5(note 1)(note 1)5731 634,5 - 1 656,5(note 1)(note 1)5731 660,5 - 1 661,2(note 1)(note 1)5731 661,2 - 1 690,07410048 (note 5)1001 690,0 - 3 400,049 (note 2)10048100
3 400 - 10 70055(notes 3 & 4)1004810010 700 - 21 200611005410021 200 - 40 0006710060100NOTE 1:The limit of subclause 6.2 (in-band unwanted emission limit) shall apply and in any 3 kHzfrequency band the EIRP including the spectrum lines shall not exceed 104 dBpW.NOTE 2:In the band 3 263,0 to 3 321,0 MHz the maximum EIRP in one, and only one, 100 kHzmeasurement bandwidth shall not exceed 82 dBpW. Prior to 1 January 1998 this figure shall be92 dBpW. Elsewhere in this band the power limit in table 2 shall be applied.NOTE 3:In each of the bands 4 894,5 to 4 981,5 MHz, 6 526,0 to 6 642,0 MHz and 8 157,5 to8 302,5 MHz the maximum EIRP in one, and only one, 100 kHz measurement bandwidth shallnot exceed 72 dBpW. Prior to 1 January 1998 this figure shall be 82 dBpW. Elsewhere in thisband the power limit in table 2 shall be applied.NOTE 4:In the band 9 789,0 to 9 963,0 MHz the maximum power in one, and only one, 100 kHzmeasurement bandwidth shall not exceed 61 dBpW. Prior to 1 January 1998 this figure shall be71 dBpW. Elsewhere in this band the power limit in table 2 shall be applied.NOTE 5:Prior to 1 January 1998 this figure shall be 51 dBpW.Verification:By measurement of unwanted emissions generated by an operating MES.All RF tests in this subclause shall be carried out at ambient environmental conditions and for a nominalpower supply voltage.All tests with carrier on shall be undertaken with the transmitter operating at full power and with themaximum transmit burst rate where applicable.To enable the performance tests to be carried out, the use of Special Test Equipment (STE), supplied bythe manufacturer or system provider, may be necessary. Since this test equipment will be specific for theparticular system, it is not possible to provide detailed specifications in this ETS.However, the following baseline is provided:-if the MES requires to receive a modulated carrier from the satellite in order to transmit, thenspecial test arrangements are required to simulate the satellite signal, thus enabling the MES totransmit allowing measurement of transmission parameters;-any specification of these special test arrangements which may have direct or indirect effects onany requirement or recommendation of this ETS shall be clearly stated by the manufacturer.SIST ETS 300 423 E1:2003
Page 12ETS 300 423: January 1995Test procedure:Below 960 MHz, the test procedures set out in CISPR 22 [2], paragraphs 6, 7, 8, 9 and 11 shall be used.Above 960 MHz, the full system shall be tested according to the test procedure given in annex B.The upper frequency to which tests shall be performed shall be at least the 10th harmonic of the highestfrequency conversion oscillator or ten times the highest operational frequency, whichever is greater.Where possible, up to four MES transmit frequencies shall be used for this test; the frequencies shall beselected to be as close as possible to the upper and lower limits of the transmit frequency sub-band(s)used by the MES declared by the manufacturer, to be intended for operational use of the MES. The upperand lower extremes of the tuning range stated by the manufacturer shall be entered in the test report.6.2Maximum unwanted emission within the 1 631,5 to 1 634,5 MHz and 1 656,5 to1 660,5 MHz bandsPurpose:Protection of satellite and terrestrial services operating in the above frequency bands.Specification:The unwanted emission EIRP in any 3 kHz band within the 1 631,5 to 1 634,5 MHz and 1 656,5 to1 660,5 MHz bands in which the MES is designed to transmit, but outside the nominated bandwidth, shallnot exceed the following limits:-when the carrier is off:57 dBpW;-when the carrier is on:the limits of table 3.Table 3Offset from the edge of the band of thenominated bandwidth (kHz)Maximum EIRP (dBpW)0 to 1012510 to 2011020 to 100105100 to 20095200 to 70088 (note 1)greater than 70078 (note 1)NOTE:Future considerations may be given to reducing this figure by up to 3 dB.The limits of table 3 do not apply to spectrum lines, but the total EIRP of the unwanted emissions,including spectrum lines, shall not exceed 128 dBpW.Verification:Conformance shall be determined by direct measurement.The conditions (environment, power, special test equipment (STE) etc.) set out in the verification sectionof subclause 6.1 shall apply.Test procedure:The measurement shall be performed by either of the two following methods:a)the full system shall be tested according to the test procedure presented in annex C; orb)the power of the unwanted emissions at the interface point between the antenna and the remainingEME shall be measured according to the alternative measurement method in annex C. TheSIST ETS 300 423 E1:2003
Page 13ETS 300 423: January 1995antenna on-axis gain shall be measured according to the measurement methods in IEC 510-2-1 [3].The EIRP of the unwanted radiation shall be calculated from the above two measurements.6.3Maximum EIRP emission density in the nominated bandwidthPurpose:Protection of other satellite systems which use the same frequency band.Specification:The EIRP density in any 3 kHz band radiated from the MES, in any direction f degrees from the antennamain beam axis, shall not exceed the following limits within ± 5° of the geostationary orbit:148 dBpWfor f < 40°;177 - 25 log f dBpWfor 40° < f < 75°;130 dBpWfor f > 75°;where:f is the angle, in degrees, between the main beam axis and the direction considered.These limits apply over the European land mass, and for the geostationary orbital arc declared by themanufacturer.Verification:Conformance shall be calculated from:-measurement of maximum RF power entering the antenna feed;-measurement of transmit antenna gain pattern.The conditions (environment, power, special test equipment (STE) etc.) set out in the verification sectionof subclause 6.1 shall apply.Test procedure:The test procedure for the measurement of the RF power shall be in accordance with that specified inannex D.The antenna gain pattern in dB relative to an isotropic antenna shall be measured in a cut at an angle,relative to the horizontal, corresponding to the worst operational case (in terms of off-axis EIRP) withregard to the relative position between the geostationary arc and the antenna beam. The angle of this cutshall be indicated by the manufacturer.The gain pattern shall be measured in accordance with IEC 510-2-1 [3], subclause 8.2.2 for threefrequencies:-one frequency close to each of the ends of the transmit frequency band which could be used by theMES; and-one frequency in the centre of this band. The gain profile to be used in the test procedure shall bethe maximum envelope of the three profiles measured.A knowledge of the measured RF power entering the antenna feed and the measured antenna gain profilewill allow the off-axis EIRP profile to be determined. This shall be compared to the limits set in thespecification of this subclause and if equal to or lower than these limits for all off axis angles, the MESshall be in conformance with this subclause.SIST ETS 300 423 E1:2003
Page 14ETS 300 423: January 19956.4Electro-Magnetic (EM) immunityPurpose:To limit interference to other radiocommunications services and to protect the MES when the MES issubjected to interfering EM fields up to 2 GHz caused by other equipment. Beyond 2 GHz arecommendation is given in clause 10.Specification:The MES shall have an adequate level of intrinsic immunity to enable it to operate with the CMFs specifiedin clause 7 when it is exposed to the following electrical field strengths (except that it is not expected thatthe MES continues successfully to receive the control messages addressed to it when in the presence ofblocking EM fields):-1 V/m in the frequency range 150 kHz to 50 MHz;-3 V/m in the frequency range 50 MHz to 2 GHz.Verification:Conformance shall be determined by a measurement method based on IEC 801-3 [5], clauses 6 to 9, buttaking into account the frequency ranges defined above. The Equipment Under Test (EUT) shall be as inannex B, clause B.3. For the test set-up see annex B, clause B.5.The MES shall be considered to satisfy this specification if the following conditions are met when thedisturbing EM field is applied:a)the CMFs shall continue to function normally;b)when the MES is in the carrier-off state there shall be no change in the signal level;c)when the MES is in the carrier-on state there shall be no change in the si
...
SLOVENSKI STANDARD
SIST ETS 300 423 E1:2003
01-december-2003
Satelitske zemeljske postaje in sistemi (SES) – Kopenske mobilne zemeljske
postaje (LMES), ki delujejo v pasovih 1,5 GHz in 1,6 GHz in zagotavljajo zvokovne
oziroma podatkovne komunikacije
Satellite Earth Stations and Systems (SES); Land Mobile Earth Stations (LMES)
operating in the 1,5 / 1,6 GHz bands providing voice and/or data communications
Ta slovenski standard je istoveten z: ETS 300 423 Edition 1
ICS:
33.060.30 Radiorelejni in fiksni satelitski Radio relay and fixed satellite
komunikacijski sistemi communications systems
SIST ETS 300 423 E1:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST ETS 300 423 E1:2003
EUROPEAN ETS 300 423
TELECOMMUNICATION August 1995
STANDARD
Source: ETSI TC-SES Reference: DE/SES-05004
ICS: 33.060.20
LMES, voice, data
Key words:
Satellite Earth Stations and Systems (SES);
Land Mobile Earth Stations (LMESs)
operating in the 1,5 / 1,6 GHz bands providing
voice and/or data communications
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
F-06921 Sophia Antipolis CEDEX - FRANCE
Postal address:
650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
Office address:
c=fr, a=atlas, p=etsi, s=secretariat - secretariat@etsi.fr
X.400: Internet:
Tel.: +33 92 94 42 00 - Fax: +33 93 65 47 16
Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and the
foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 1995. All rights reserved.
New presentation - see History box
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ETS 300 423: January 1995
Whilst 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.
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SIST ETS 300 423 E1:2003
Page 3
ETS 300 423: January 1995
Contents
Foreword .5
1 Scope .7
2 Normative references.7
3 Definitions and abbreviations .8
3.1 Definitions .8
3.2 Abbreviations .8
4 Test report.9
5 Safety .9
5.1 Mechanical construction .9
5.2 Electrical safety, power voltages.9
5.3 Radio frequency radiation protection .9
6 Radio Frequency (RF).10
6.1 Unwanted emission outside the bands 1 631,5 to 1 634,5 MHz and 1 656,5
to 1 660,5 MHz.10
6.2 Maximum unwanted emission within the 1 631,5 to 1 634,5 MHz and 1 656,5 to
1 660,5 MHz bands.12
6.3 Maximum EIRP emission density in the nominated bandwidth .13
6.4 Electro-Magnetic (EM) immunity.14
6.5 Protection of the radio astronomy service from emissions produced by the MES
operating in the band 1 660,0 to 1 660,5 MHz.14
6.6 Protection of electronic equipment from excessive EM fields produced by the MES.15
7 MES Control and Monitoring Functions (CMFs).15
7.1 Monitoring functions.15
7.1.1 Processor monitoring .15
7.1.2 Transmit frequency generation sub-system .16
7.2 Power on/reset.16
7.3 Network control reception and authorisation .16
7.3.1 Network control authorisation.16
7.3.2 Network control reception.17
8 Initial burst transmission.18
9 Electrical safety while loading and unloading hazardous fuels or gases.18
10 EM immunity between 2 GHz and 3 GHz.18
11 Compliance with RF specifications under conditions of shock and vibration.19
12 Method of attachment of the Externally Mounted Equipment (EME) to a vehicle .19
13 Network Control Facilities (NCFs) for MES networks .19
Annex A (normative): Environmental and test conditions.20
A.1 Environmental conditions .20
A.2 Test conditions .20
Annex B (normative): Out-of-band unwanted emissions above 960 MHz - test procedure .21
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ETS 300 423: January 1995
B.1 Introduction. 21
B.2 Measuring apparatus. 21
B.3 Equipment Under Test (EUT). 21
B.4 Special Test Equipment (STE) . 21
B.5 Test set-up. 22
B.6 Measuring procedure. 22
B.7 Alternative measurement procedure . 22
Annex C (normative): In-band unwanted emissions - test procedure. 23
C.1 Introduction. 23
C.2 Measuring apparatus. 23
C.3 Equipment Under Test (EUT). 23
C.4 Special Test Equipment (STE) . 23
C.5 Test set-up. 23
C.6 Measuring procedure. 24
C.7 Alternative measuring procedure. 24
Annex D (normative): EIRP density - test procedure. 25
D.1 Introduction. 25
D.2 Measuring apparatus. 25
D.3 Equipment Under Test (EUT). 25
D.4 Special Test Equipment (STE) . 25
D.5 Test set-up. 25
D.6 Measuring procedure. 25
History. 26
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ETS 300 423: January 1995
Foreword
This European Telecommunication Standard (ETS) has been produced by the Satellite Earth Stations and
Systems (SES) Technical Committee of the European Telecommunications Standards Institute (ETSI).
Transposition dates
Date of adoption of this ETS: 29 June 1995
Date of latest announcement of this ETS (doa): 30 November 1995
Date of latest publication of new National Standard
or endorsement of this ETS (dop/e): 31 May 1996
Date of withdrawal of any conflicting National Standard (dow): 31 May 1996
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Blank page
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ETS 300 423: January 1995
1 Scope
This European Telecommunication Standard (ETS) provides specifications for the standardisation of the
characteristics of Mobile Earth Stations (MESs) using geostationary satellites with both transmit and
receive capabilities in order to ensure general safety and to limit interference to radiocommunication
services.
The geostationary satellite networks referred to in this ETS operate under the Land Mobile Satellite
Service (LMSS). The MESs operate as a part of a satellite network providing voice and/or data
communications.
The frequency bands under which the MESs operate should be within the following bands:
LMSS
MESs transmit 1 631,5 - 1 634,5 MHz
1 656,5 - 1 660,5 MHz
MESs receive 1 530 - 1 533 MHz
1 555 - 1 559 MHz
These MESs generally have the following characteristics:
- the MESs could be either vehicle mounted or portable equipment;
- the MES could consist of a number of modules including suitable interfaces to the user.
The main specifications are contained in three categories related to:
- safety: to protect personnel, public and goods from unsafe operating conditions or equipment;
- unwanted emissions: to protect terrestrial and satellite radio services from harmful interference;
- MES control and monitoring: to specify a minimum set of Control and Monitoring Functions
(CMFs) to be implemented on each MES in order to minimise the probability that they originate
unwanted transmissions that may give rise to harmful interference to other systems.
This ETS deals with two types of specification:
- specifications defined in order to protect other users of the frequency spectrum from unacceptable
interference. In addition, these specifications are specified for the purposes of general safety;
- specifications related to matters of general safety, minimisation of interference to other users of the
radio spectrum and for the provision of protection of the MESs against electromagnetic interference
from other systems. These specifications apply if required by the manufacturer.
2 Normative references
This ETS incorporates, by dated or undated references, provisions from other publications. These
normative references are cited at the appropriate places in the text, and the publications are listed
hereafter. For dated references, subsequent amendments to or revisions of any of these publications
apply to this ETS only when incorporated in it by amendment or revision. For undated references the latest
edition of the publication referred to applies.
[1] IEC 215 (1987): "Safety requirements for radio transmitting equipment".
[2] CISPR 22 (1993): "Limits and methods of measurement of radio disturbance
characteristics of information technology equipment".
[3] IEC 510-2-1 (1978): "Methods of measurement for radio equipment used in
satellite earth stations, Part 2: Measurements for sub-systems".
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[4] prETS 300 424 (1994): "Satellite Earth Stations and Systems (SES); Network
Control Facilities (NCF) for Land Mobile Earth Stations (LMESs) operating in the
1,5/1,6 GHz bands providing voice and/or data communications".
[5] IEC 801-3 (1984): "Electromagnetic compatibility for industrial process
measurement and control equipment; Part 3: Radiated electromagnetic field
requirements".
[6] CISPR 16 (1987): "Specifications for radio interference measuring apparatus
and measurements methods".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of this ETS, the following definitions apply:
directional antenna: An antenna with a transmit gain equal to or greater than 10 dBi.
Installable Equipment (IE): An equipment which is intended to be installed in a vehicle. An IE may
consist of one or several interconnected modules as follows:
Internally Mounted Equipment (IME) and Externally Mounted Equipment (EME): The manufacturer
indicates which modules are intended to be Externally Mounted Equipment (EME); the remaining
module(s) are then defined as Internally Mounted Equipment (IME). Where different specifications apply
to IME and EME, this is noted in the relevant text.
nominated bandwidth: The nominated bandwidth encompasses all spectral elements of the
transmission which have a level greater than the specified spurious levels. The nominated bandwidth is
wide enough to take account of the transmit carrier frequency stability. The nominated bandwidth is within
the LMSS transmit frequency band within which the MES operates. The bandwidth of the MES radio
frequency transmission is nominated by the manufacturer and included in the data sheet of the test report.
Portable Equipment (PE): A portable equipment is generally intended to be self-contained, free standing
and portable. A PE would normally consist of a single module, but may consist of several interconnected
modules. In some cases different specifications apply to PE and this is noted in the relevant text.
unwanted emissions: Unwanted emissions are those falling outside the nominated bandwidth.
3.2 Abbreviations
For the purposes of this ETS, the following abbreviations apply:
CMF Control and Monitoring Function
EIRP Equivalent Isotropically Radiated Power
EM Electro-Magnetic
EME Externally Mounted Equipment
EUT Equipment Under Test
IE Installable Equipment
IME Internally Mounted Equipment
LMES Land Mobile Earth Station
LMSS Land Mobile Satellite Service
MES Mobile Earth Station
NCF Network Control Facilities
PE Portable Equipment
RF Radio Frequency
rms root mean square
s second
STE Special Test Equipment
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4 Test report
The test report shall contain:
- the value of the nominated bandwidth, declared by the manufacturer;
- the results of the tests;
- all parameters and operational conditions.
5 Safety
5.1 Mechanical construction
Purpose:
Protection of operating personnel, the public and goods from insecure or unsafe structures.
Specification:
For Installable Equipment (IE) and Portable Equipment (PE) the mechanical design, construction and
finish of the equipment shall conform to IEC 215 [1], section 3, paragraph 9.1.
Verification:
Verification shall be demonstrated by documentary evidence and visual inspection.
5.2 Electrical safety, power voltages
Purpose:
Protection of operating personnel and the public from electric shock.
Specification:
The electrical safety of the equipment shall be in accordance with paragraphs 13, 14, 15 and 16 and
Appendix B of IEC 215 [1].
Verification:
Conformance shall be demonstrated by documentary evidence and visual inspection.
5.3 Radio frequency radiation protection
Purpose:
2
To indicate the distance from the MES below which RF power densities in excess of 8 W/m may be
experienced, when averaged over a 6 minute period.
Specification:
The radiating part of the equipment (which includes the exterior of any radome or other antenna enclosure
where fitted) shall be labelled with a warning notice which shall be clearly visible when the equipment is in
its normal operating configuration. This notice shall indicate the closest distance to the radiating part within
which a person may approach the equipment without experiencing radio frequency power density levels in
2
excess of 8 W/m , when under worst case conditions (e.g. maximum power, maximum on/off ratio),
averaged over a 6 minute period. This notice shall also state that before approaching the radiating part
within any distance closer than that indicated, the MES equipment shall be switched off or otherwise
disabled so that it shall not transmit.
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Where the equipment is vehicle mounted a warning notice providing the same information as that affixed
to the radiating part shall be provided for fixing in the vehicle near to and clearly visible from the normal
operating position of the IME. In addition, for vehicle mounted equipment where the radiating part is
mounted in a position where it is not normally visible to a person standing on the ground next to the
vehicle, further warning labels shall be provided with instructions that they be attached to the vehicle so as
to be clearly visible to anyone attempting to climb on to the part of the vehicle where the radiating part of
the equipment is mounted.
In the case where the antenna is enclosed in a radome or other antenna enclosure and no RF power
2
density greater than 8 W/m , when under worst case conditions (e.g. maximum power, maximum on/off
ratio) averaged over a 6 minute period, is produced outside of this radome or antenna enclosure, then it is
not necessary to label the radiating part or provide labels for the vehicle in the manner indicated above.
Instead, the radiating part shall be clearly labelled with a warning that the MES equipment shall be
switched off, or otherwise disabled, so that it shall not transmit before any work requiring the removal of
the radome or antenna enclosure takes place. Where the equipment is vehicle mounted, a label
containing the same warning shall be provided, to be mounted in the vehicle near to, and clearly visible
from, the normal operating position of the IME.
Verification:
2
Verification of the distance below which exist RF power densities in excess of 8 W/m , when under worst
case conditions (e.g. maximum power, maximum on/off ratio) averaged over a 6 minute period, shall be
demonstrated by documentary evidence. The manufacturer shall quantify the worst case conditions.
6 Radio Frequency (RF)
In this clause, whenever a change of limit between adjacent frequency bands occurs, the lower of the two
limits shall apply at the transition frequency.
6.1 Unwanted emission outside the bands 1 631,5 to 1 634,5 MHz and 1 656,5 to 1 660,5 MHz
Purpose:
Protection of other terrestrial and satellite services from emissions caused by MESs outside the bands
1 631,5 to 1 634,5 MHz and 1 656,5 to 1 660,5 MHz.
Specification:
The unwanted emissions from MESs outside the band 1 631,5 to 1 634,5 MHz and 1 656,5 to
1 660,5 MHz within which the MES is designed to operate shall be below the following limits.
For unwanted emissions below 960 MHz, the MESs shall meet the requirements of CISPR 22 [2] for class
B equipment with carrier on given in table 1.
Table 1
Limits of unwanted emissions at a test distance of 10 m in any 120 kHz band
Frequency Quasi-peak limits (dBμV/m)
30 MHz to 230 MHz 30
230 MHz to 960 MHz 37
The unwanted emission EIRP above 960 MHz in the measurement bandwidth in all directions shall not
exceed the limits in table 2.
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Table 2
Frequency range Carrier On Carrier Off
MHz EIRP limit (dBpW) Measurement EIRP limit (dBpW) Measurement
bandwidth (kHz) bandwidth (kHz)
960,0 - 1 525,0 49 100 48 100
1 525,0 - 1 559,0 49 100 17 3
1 559,0 - 1 600,0 49 100 48 100
1 600,0 - 1 625,8 74 100 48 (note 5) 100
1 625,8 - 1 631,5 (note 1) (note 1) 57 3
1 634,5 - 1 656,5 (note 1) (note 1) 57 3
1 660,5 - 1 661,2 (note 1) (note 1) 57 3
1 661,2 - 1 690,0 74 100 48 (note 5) 100
1 690,0 - 3 400,0 49 (note 2) 100 48 100
3 400 - 10 700 55 100 48 100
(notes 3 & 4)
10 700 - 21 200 61 100 54 100
21 200 - 40 000 67 100 60 100
NOTE 1: The limit of subclause 6.2 (in-band unwanted emission limit) shall apply and in any 3 kHz
frequency band the EIRP including the spectrum lines shall not exceed 104 dBpW.
NOTE 2: In the band 3 263,0 to 3 321,0 MHz the maximum EIRP in one, and only one, 100 kHz
measurement bandwidth shall not exceed 82 dBpW. Prior to 1 January 1998 this figure shall be
92 dBpW. Elsewhere in this band the power limit in table 2 shall be applied.
NOTE 3: In each of the bands 4 894,5 to 4 981,5 MHz, 6 526,0 to 6 642,0 MHz and 8 157,5 to
8 302,5 MHz the maximum EIRP in one, and only one, 100 kHz measurement bandwidth shall
not exceed 72 dBpW. Prior to 1 January 1998 this figure shall be 82 dBpW. Elsewhere in this
band the power limit in table 2 shall be applied.
NOTE 4: In the band 9 789,0 to 9 963,0 MHz the maximum power in one, and only one, 100 kHz
measurement bandwidth shall not exceed 61 dBpW. Prior to 1 January 1998 this figure shall be
71 dBpW. Elsewhere in this band the power limit in table 2 shall be applied.
NOTE 5: Prior to 1 January 1998 this figure shall be 51 dBpW.
Verification:
By measurement of unwanted emissions generated by an operating MES.
All RF tests in this subclause shall be carried out at ambient environmental conditions and for a nominal
power supply voltage.
All tests with carrier on shall be undertaken with the transmitter operating at full power and with the
maximum transmit burst rate where applicable.
To enable the performance tests to be carried out, the use of Special Test Equipment (STE), supplied by
the manufacturer or system provider, may be necessary. Since this test equipment will be specific for the
particular system, it is not possible to provide detailed specifications in this ETS.
However, the following baseline is provided:
- if the MES requires to receive a modulated carrier from the satellite in order to transmit, then
special test arrangements are required to simulate the satellite signal, thus enabling the MES to
transmit allowing measurement of transmission parameters;
- any specification of these special test arrangements which may have direct or indirect effects on
any requirement or recommendation of this ETS shall be clearly stated by the manufacturer.
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Test procedure:
Below 960 MHz, the test procedures set out in CISPR 22 [2], paragraphs 6, 7, 8, 9 and 11 shall be used.
Above 960 MHz, the full system shall be tested according to the test procedure given in annex B.
The upper frequency to which tests shall be performed shall be at least the 10th harmonic of the highest
frequency conversion oscillator or ten times the highest operational frequency, whichever is greater.
Where possible, up to four MES transmit frequencies shall be used for this test; the frequencies shall be
selected to be as close as possible to the upper and lower limits of the transmit frequency sub-band(s)
used by the MES declared by the manufacturer, to be intended for operational use of the MES. The upper
and lower extremes of the tuning range stated by the manufacturer shall be entered in the test report.
6.2 Maximum unwanted emission within the 1 631,5 to 1 634,5 MHz and 1 656,5 to
1 660,5 MHz bands
Purpose:
Protection of satellite and terrestrial services operating in the above frequency bands.
Specification:
The unwanted emission EIRP in any 3 kHz band within the 1 631,5 to 1 634,5 MHz and 1 656,5 to
1 660,5 MHz bands in which the MES is designed to transmit, but outside the nominated bandwidth, shall
not exceed the following limits:
- when the carrier is off: 57 dBpW;
- when the carrier is on: the limits of table 3.
Table 3
Offset from the edge of the band of the Maximum EIRP (dBpW)
nominated bandwidth (kHz)
0 to 10 125
10 to 20 110
20 to 100 105
100 to 200 95
200 to 700 88 (note 1)
greater than 700 78 (note 1)
NOTE: Future considerations may be given to reducing this figure by up to 3 dB.
The limits of table 3 do not apply to spectrum lines, but the total EIRP of the unwanted emissions,
including spectrum lines, shall not exceed 128 dBpW.
Verification:
Conformance shall be determined by direct measurement.
The conditions (environment, power, special test equipment (STE) etc.) set out in the verification section
of subclause 6.1 shall apply.
Test procedure:
The measurement shall be performed by either of the two following methods:
a) the full system shall be tested according to the test procedure presented in annex C; or
b) the power of the unwanted emissions at the interface point between the antenna and the remaining
EME shall be measured according to the alternative measurement method in annex C. The
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antenna on-axis gain shall be measured according to the measurement methods in IEC 510-2-1 [3].
The EIRP of the unwanted radiation shall be calculated from the above two measurements.
6.3 Maximum EIRP emission density in the nominated bandwidth
Purpose:
Protection of other satellite systems which use the same frequency band.
Specification:
The EIRP density in any 3 kHz band radiated from the MES, in any direction φ degrees from the antenna
main beam axis, shall not exceed the following limits within ± 5° of the geostationary orbit:
148 dBpW for φ < 40°;
177 - 25 log φ dBpW for 40° < φ < 75°;
130 dBpW for φ > 75°;
where:
φ is the angle, in degrees, between the main beam axis and the direction considered.
These limits apply over the European land mass, and for the geostationary orbital arc declared by the
manufacturer.
Verification:
Conformance shall be calculated from:
- measurement of maximum RF power entering the antenna feed;
- measurement of transmit antenna gain pattern.
The conditions (environment, power, special test equipment (STE) etc.) set out in the verification section
of subclause 6.1 shall apply.
Test procedure:
The test procedure for the measurement of the RF power shall be in accordance with that specified in
annex D.
The antenna gain pattern in dB relative to an isotropic antenna shall be measured in a cut at an angle,
relative to the horizontal, corresponding to the worst operational case (in terms of off-axis EIRP) with
regard to the relative position between the geostationary arc and the antenna beam. The angle of this cut
shall be indicated by the manufacturer.
The gain pattern shall be measured in accordance with IEC 510-2-1 [3], subclause 8.2.2 for three
frequencies:
- one frequency close to each of the ends of the transmit frequency band which could be used by the
MES; and
- one frequency in the centre of this band. The gain profile to be used in the test procedure shall be
the maximum envelope of the three profiles measured.
A knowledge of the measured RF power entering the antenna feed and the measured antenna gain profile
will allow the off-axis EIRP profile to be determined. This shall be compared to th
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