SIST EN 300 162-1 V1.2.2:2003
(Main)ElectroMagnetic Compatibility and Radio Spectrum Matters (ERM); Radiotelephone transmitters and receivers for the maritime mobile service operating in VHF bands; Part 1: Technical characteristics and methods of measurement
- Abstract
Editorial update to include changes consequential to the publication of part 2.
- Status
- Published
- Publication Date
- 30-Nov-2003
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Dec-2003
- Due Date
- 01-Dec-2003
- Completion Date
- 01-Dec-2003
SIST EN 300 162-1 V1.2.2:2003 is the Slovenian adoption of ETSI EN 300 162-1 V1.2.2. It covers shipborne Very High Frequency (VHF) radiotelephone transmitters and receivers for the maritime mobile service, including voice and Digital Selective Calling (DSC), and sets the technical characteristics and measurement methods used to assess them.
What does SIST EN 300 162-1 V1.2.2:2003 specify?
SIST EN 300 162-1 V1.2.2:2003 specifies the minimum requirements for shipborne VHF transmitters and receivers fitted with an external antenna connector for use onboard ships. The document also brings in relevant International Maritime Organization (IMO) recommendations for maritime radio installations and VHF multiple watch operation.
The document is organized into clauses 1 to 10, followed by three normative annexes.
| Annex | What it covers |
|---|---|
| Annex A | Measuring receiver specification for adjacent channel power measurement |
| Annex B | Protocol for IEC 1162-1 commands, including Frequency Set Information (FSI) |
| Annex C | Radiated measurement sites, test antennas, substitution antennas, and indoor/outdoor test arrangements |
What are the key requirements of SIST EN 300 162-1 V1.2.2:2003?
SIST EN 300 162-1 V1.2.2:2003 combines equipment design rules, operating functions, and laboratory tests. In practice, it tells a manufacturer or test lab what the set must do on board ship and how to measure whether it does it.
Operational and interface rules
Clause 4 requires the manufacturer to declare compliance and provide technical documentation. The equipment must be built for shipboard use, with accessible parts for inspection and maintenance, clearly identifiable components, and clear labelling of controls, terminals, power supply details, manufacturer identity, type designation, serial number, and compass safe distances.
Clause 4 also requires control and safety features that matter in everyday use: a channel selector with the channel designator shown, distinct marking for channels 16 and 70, protection against use of channel 70 for anything other than DSC, and prevention of transmission if the frequency synthesizer is not locked or while channel switching is in progress.
Clause 4.3 and 4.4 cover practical shipboard safety and operation: a handset or microphone, loudspeaker control, muting during simplex transmission, duplex precautions, overcurrent and overvoltage protection, reverse polarity protection, and protection of memory contents against short power interruptions. These points matter because they affect safe operation, call handling, and data retention in real service.
Multiple watch and DSC functions
Clause 5.3 defines multiple watch operation for a priority channel plus one additional channel. The equipment must support automatic scanning, manual on/off control, channel indication, and a quick way to return to the priority channel. Clause 5.3.2 sets the scan behaviour, including the sampling period and the time the receiver may leave the additional channel. Clause 5.4 sets DSC controller interface requirements, including impedance, IEC 1162-1 control protocol, and FSI support.
Measurement conditions and environmental checks
Clause 6 gives the test setup rules. These include a 50 Ω receiver input condition, the use of channel 16 unless stated otherwise, normal test modulation, artificial antenna requirements, and measurement uncertainty handling. Clause 6.8 to 6.11 define normal and extreme temperatures, supply voltages, and the procedure for testing at temperature extremes.
Clause 7 requires vibration, dry heat, damp heat, and low temperature cycle testing, each followed by a performance check. The performance check in Clause 7.2 looks at transmitter frequency error, transmitter carrier power, and receiver maximum usable sensitivity, so the equipment is verified after environmental stress, not only at room conditions.
Transmitter, receiver, and duplex performance
Clauses 8 and 9 cover the main radio characteristics. On the transmitter side, the document sets limits for frequency error, carrier power, frequency deviation, audio response, harmonic distortion, adjacent channel power, spurious emissions, residual modulation, DSC audio input behaviour, modulation attack time, and transient frequency behaviour. On the receiver side, it sets limits for audio output power, audio response, maximum usable sensitivity, co-channel rejection, adjacent channel selectivity, spurious response rejection, intermodulation response, blocking, spurious emissions, noise and hum, squelch operation, squelch hysteresis, multiple watch performance, and DSC audio output.
Clause 10 adds duplex checks where duplex operation is intended. These tests verify receiver desensitization during simultaneous transmit and receive, and internal mixing in the duplex transceiver. For ship operators, this is the part that confirms the set can work properly in duplex service without losing receiver performance.
What terms does SIST EN 300 162-1 V1.2.2:2003 define?
SIST EN 300 162-1 V1.2.2:2003 defines several terms that are used throughout the test methods.
- Channel 16 - the frequency 156,800 MHz.
- G3E - phase modulation for speech with 6 dB/octave pre-emphasis.
- G2B - phase modulation with digital information and a sub-carrier for DSC operation.
- Modulation index - the ratio between frequency deviation and modulation frequency.
- Performance check - the check of transmitter carrier power and frequency, and receiver sensitivity.
- Equipment Under Test (EUT) - the device being evaluated in the test setup.
- Signal-to-noise and distortion/noise+distortion (SINAD) - the quality measure used for several receiver tests.
- Frequency Set Information (FSI) - the IEC 1162-1 command used to set or read frequency, mode, and power.
Who uses SIST EN 300 162-1 V1.2.2:2003?
SIST EN 300 162-1 V1.2.2:2003 is used by radio equipment manufacturers, test laboratories, conformity assessors, and maritime equipment buyers. It is also used by engineers and quality managers who need to verify VHF marine radiotelephone performance, DSC handling, channel control, and environmental robustness for shipboard service.
What changed in SIST EN 300 162-1 V1.2.2:2003 from the previous edition?
SIST EN 300 162-1 V1.2.2:2003 is an editorial update made to include changes consequential to the publication of Part 2 of the series.
Which standards are used with SIST EN 300 162-1 V1.2.2:2003?
Clause 2 names the documents that support this standard, including the Radio Regulations Appendices 18 and 19, ITU-T Recommendation E.161, ITU-R Recommendations M.493-8, M.541-7, and SM 332-4, IMO Resolutions A.803(19) and A.524(13), ITU-T Recommendation P.53, IEC 1162-1, ETSI ETS 300 828, ETSI ETR 028, and ETSI EN 300 338. Together they supply channel allocations, DSC procedures, operational priorities, telephony keypad conventions, measurement uncertainty, and the DSC and EMC interfaces used by the tests.
What does the SIST EN 300 162-1 V1.2.2:2003 document contain?
The document contains measurement methods, test conditions, and acceptance limits for marine VHF radiotelephone equipment. It includes the uncertainty table in Clause 6, the environmental test procedures in Clause 7, transmitter and receiver test methods in Clauses 8 and 9, and duplex test methods in Clause 10. Annex A defines the adjacent channel power measuring receiver, Annex B gives the FSI protocol, and Annex C describes radiated measurement sites and substitution methods used for spurious radiation and sensitivity testing.
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Frequently Asked Questions
SIST EN 300 162-1 V1.2.2:2003 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "ElectroMagnetic Compatibility and Radio Spectrum Matters (ERM); Radiotelephone transmitters and receivers for the maritime mobile service operating in VHF bands; Part 1: Technical characteristics and methods of measurement". This standard covers: Editorial update to include changes consequential to the publication of part 2.
Editorial update to include changes consequential to the publication of part 2.
SIST EN 300 162-1 V1.2.2:2003 is classified under the following ICS (International Classification for Standards) categories: 33.060.20 - Receiving and transmitting equipment; 33.100.01 - Electromagnetic compatibility in general; 47.020.70 - Navigation and control equipment. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 300 162-1 V1.2.2:2003 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.ElectroMagnetic Compatibility and Radio Spectrum Matters (ERM); Radiotelephone transmitters and receivers for the maritime mobile service operating in VHF bands; Part 1: Technical characteristics and methods of measurement47.020.70Navigacijska in krmilna opremaNavigation and control equipment33.100.01Elektromagnetna združljivost na splošnoElectromagnetic compatibility in general33.060.20Sprejemna in oddajna opremaReceiving and transmitting equipmentICS:Ta slovenski standard je istoveten z:EN 300 162-1 Version 1.2.2SIST EN 300 162-1 V1.2.2:2003en01-december-2003SIST EN 300 162-1 V1.2.2:2003SLOVENSKI
STANDARD
ETSIEN300162-1V1.2.2(2000-12)EuropeanStandard(Telecommunicationsseries)ElectromagneticcompatibilityandRadiospectrumMatters(ERM);RadiotelephonetransmittersandreceiversforthemaritimemobileserviceoperatinginVHFbands;Part1:TechnicalcharacteristicsandmethodsofmeasurementSIST EN 300 162-1 V1.2.2:2003
ETSIETSIEN300162-1V1.2.2(2000-12)2ReferenceDEN/ERM-RP01-046-1KeywordsEMC,GMDSS,maritime,radio,telephony,testing,VHFETSI650RoutedesLuciolesF-06921SophiaAntipolisCedex-FRANCETel.:+33492944200Fax:+33493654716SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/88ImportantnoticeIndividualcopiesofthepresentdocumentcanbedownloadedfrom:http://www.etsi.orgThepresentdocumentmaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.Usersofthepresentdocumentshouldbeawarethatthedocumentmaybesubjecttorevisionorchangeofstatus.InformationonthecurrentstatusofthisandotherETSIdocumentsisavailableathttp://www.etsi.org/tb/status/Ifyoufinderrorsinthepresentdocument,sendyourcommentto:editor@etsi.frCopyrightNotificationNopartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2000.Allrightsreserved.SIST EN 300 162-1 V1.2.2:2003
ETSIETSIEN300162-1V1.2.2(2000-12)3ContentsIntellectualPropertyRights.8Foreword.81Scope.92References.93Definitions,symbolsandabbreviations.103.1Definitions.103.2Symbols.103.3Abbreviations.104Generalandoperationalrequirements.104.1Construction.104.2Controlsandindicators.114.3Handsetandloudspeaker.124.4Safetyprecautions.124.5Labelling.124.6Warmup.125Technicalrequirements.135.1Switchingtime.135.2Classofemissionandmodulationcharacteristics.135.3Multiplewatchfacilities.135.3.1Additionalperformancestandards.135.3.2Scanningcharacteristics.145.4DSCcontrollerinterfaces.145.4.1Operationalinterfaces.146Generalconditionsofmeasurement.146.1Arrangementsfortestsignalsappliedtothereceiverinput.146.2Squelch.146.3Normaltestmodulation.146.4Artificialantenna.156.5Arrangementsfortestsignalsappliedtothetransmitterinput.156.6Testchannels.156.7Measurementuncertaintyandinterpretationofthemeasuredresults.156.7.1Measurementuncertainty.156.7.2Interpretationofthemeasurementresults.156.8Testconditions,powersourcesandambienttemperatures.166.8.1Normalandextremetestconditions.166.8.2Testpowersource.166.9Normaltestconditions.166.9.1Normaltemperatureandhumidity.166.9.2Normalpowersources.166.9.2.1Mainsvoltageandfrequency.166.9.2.2Batterypowersource.166.9.2.3Otherpowersources.166.10Extremetestconditions.176.10.1Extremetemperatures.176.10.2Extremevaluesoftestpowersources.176.10.2.1Mainsvoltage.176.10.2.2Batterypowersource.176.10.2.3Otherpowersources.176.11Procedurefortestsatextremetemperatures.177Environmentaltests.177.1Procedure.177.2Performancecheck.18SIST EN 300 162-1 V1.2.2:2003
ETSIETSIEN300162-1V1.2.2(2000-12)47.3Vibrationtest.187.3.1Definition.187.3.2Methodofmeasurement.187.3.3Requirement.187.4Temperaturetests.197.4.1Definition.197.4.2Dryheat.197.4.2.1Definition.197.4.2.2Methodofmeasurement.197.4.2.3Requirement.197.4.3Dampheat.197.4.3.1Definition.197.4.3.2Methodofmeasurement.197.4.3.3Requirement.197.4.4Lowtemperaturecycle.207.4.4.1Definition.207.4.4.2Methodofmeasurement.207.4.4.3Requirement.208Transmitter.208.1Frequencyerror.208.1.1Definition.208.1.2Methodofmeasurement.208.1.3Limits.208.2Carrierpower.208.2.1Definitions.208.2.2Methodofmeasurement.218.2.3Limits.218.2.3.1Normaltestconditions.218.2.3.2Extremetestconditions.218.3Frequencydeviation.218.3.1Definition.218.3.2Maximumpermissiblefrequencydeviation.218.3.2.1Methodofmeasurement.218.3.2.2Limits.218.3.3Reductionoffrequencydeviationatmodulationfrequenciesabove3kHz.218.3.3.1Methodofmeasurement.218.3.3.2Limits.228.4Sensitivityofthemodulator,includingmicrophone.228.4.1Definition.228.4.2Methodofmeasurement.228.4.3Limits.228.5Audiofrequencyresponse.228.5.1Definition.228.5.2Methodofmeasurement.238.5.3Limit.238.6Audiofrequencyharmonicdistortionoftheemission.238.6.1Definition.238.6.2Methodofmeasurement.238.6.2.1Normaltestconditions.248.6.2.2Extremetestconditions.248.6.3Limits.248.7Adjacentchannelpower.248.7.1Definition.248.7.2Methodofmeasurement.248.7.3Limits.248.8Conductedspuriousemissionsconveyedtotheantenna.258.8.1Definition.258.8.2Methodofmeasurement.258.8.3Limit.258.9Cabinetradiationandconductedspuriousemissionsotherthanthoseconveyedtotheantenna.258.9.1Definitions.25SIST EN 300 162-1 V1.2.2:2003
ETSIETSIEN300162-1V1.2.2(2000-12)58.9.2Methodofmeasurement.258.9.3Limits.268.10Residualmodulationofthetransmitter.268.10.1Definition.268.10.2Methodofmeasurement.268.10.3Limit.268.11DSCaudioinputcharacteristics.278.11.1Definition.278.11.2Methodofmeasurement.278.11.3Limits.278.12DSCaudioinputlimitation.278.12.1Definition.278.12.2Methodofmeasurement.278.12.3Limit.278.13Modulationattacktime.278.13.1Definition.278.13.2Methodofmeasurement.278.13.3Limit.288.14Transientfrequencybehaviourofthetransmitter.298.14.1Definitions.298.14.2Methodofmeasurement.298.14.3Limits.329Receiver.329.1Harmonicdistortionandratedaudiofrequencyoutputpower.329.1.1Definition.329.1.2Methodsofmeasurement.329.1.3Limits.339.2Audiofrequencyresponse.339.2.1Definition.339.2.2Methodofmeasurement.339.2.3Limits.339.3Maximumusablesensitivity.349.3.1Definition.349.3.2Methodofmeasurement.349.3.3Limits.359.4Co-channelrejection.359.4.1Definition.359.4.2Methodofmeasurement.359.4.3Limit.359.5Adjacentchannelselectivity.359.5.1Definition.359.5.2Methodofmeasurement.359.5.3Limits.369.6Spuriousresponserejection.369.6.1Definition.369.6.2Methodofmeasurement.369.6.3Limit.369.7Intermodulationresponse.369.7.1Definition.369.7.2Methodofmeasurement.379.7.3Limit.379.8Blockingordesensitization.379.8.1Definition.379.8.2Methodofmeasurement.379.8.3Limit.379.9Conductedspuriousemissions.379.9.1Definition.379.9.2Methodofmeasurement.389.9.3Limit.389.10Radiatedspuriousemissions.389.10.1Definition.38SIST EN 300 162-1 V1.2.2:2003
ETSIETSIEN300162-1V1.2.2(2000-12)69.10.2Methodofmeasurements.389.10.3Limit.399.11Receivernoiseandhumlevel.399.11.1Definition.399.11.2Methodofmeasurement.399.11.3Limit.399.12Squelchoperation.399.12.1Definition.399.12.2Methodofmeasurement.399.12.3Limits.409.13Squelchhysteresis.409.13.1Definition.409.13.2Methodofmeasurement.409.13.3Limit.409.14Multiplewatchcharacteristic.409.14.1Definition.409.14.2Methodofmeasurement.419.14.3Limits.419.15DSCaudiooutputcharacteristic.419.15.1Definition.419.15.2Methodsofmeasurement.419.15.3Limit.4110Duplexoperation.4110.1Receiverdesensitizationwithsimultaneoustransmissionandreception.4210.1.1Definition.4210.1.2Methodofmeasurement.4210.1.3Limits.4210.2Duplextransceiverinternalmixing.4210.2.1Definition.4210.2.2Methodofmeasurement.4210.2.3Limits.43AnnexA(normative):Measuringreceiverforadjacentchannelpowermeasurement.44A.1Powermeasuringreceiverspecification.44A.1.1IFfilter.44A.1.2Attenuationindicator.45A.1.3RMSvalueindicator.45A.1.4Oscillatorandamplifier.45AnnexB(normative):ProtocolfortheIEC1162-1commandsFrequencySetInformation(FSI).46B.1FrequencySetInformation(FSI).46AnnexC(normative):Radiatedmeasurements.47C.1Testsitesandgeneralarrangementsformeasurementsinvolvingtheuseofradiatedfields.47C.1.1Outdoortestsite.47C.1.2Testantenna.47C.1.3Substitutionantenna.48C.1.4Optionaladditionalindoorsite.48C.2Guidanceontheuseofradiationtestsites.49C.2.1Measuringdistance.49C.2.2Testantenna.49C.2.3Substitutionantenna.49C.2.4Artificialantenna.50C.2.5Auxiliarycables.50C.2.6Acousticmeasuringarrangement.50C.3Furtheroptionalalternativeindoortestsiteusingananechoicchamber.50C.3.1Exampleoftheconstructionofashieldedanechoicchamber.51SIST EN 300 162-1 V1.2.2:2003
ETSIETSIEN300162-1V1.2.2(2000-12)7C.3.2Influenceofparasiticreflectionsinanechoicchambers.51C.3.3Calibrationoftheshieldedanechoicchamber.51History.54SIST EN 300 162-1 V1.2.2:2003
ETSIETSIEN300162-1V1.2.2(2000-12)8IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.TheinformationpertainingtotheseessentialIPRs,ifany,ispubliclyavailableforETSImembersandnon-members,andcanbefoundinETSISR000314:"IntellectualPropertyRights(IPRs);Essential,orpotentiallyEssential,IPRsnotifiedtoETSIinrespectofETSIstandards",whichisavailablefromtheETSISecretariat.LatestupdatesareavailableontheETSIWebserver(http://www.etsi.org/ipr).PursuanttotheETSIIPRPolicy,noinvestigation,includingIPRsearches,hasbeencarriedoutbyETSI.NoguaranteecanbegivenastotheexistenceofotherIPRsnotreferencedinETSISR000314(ortheupdatesontheETSIWebserver)whichare,ormaybe,ormaybecome,essentialtothepresentdocument.ForewordThisEuropeanStandard(Telecommunicationsseries)hasbeenproducedbyETSITechnicalCommitteeElectromagneticcompatibilityandRadiospectrumMatters(ERM).Thepresentdocumentispart1ofamulti-partdeliverablecoveringtheRadiotelephonetransmittersandreceiversforthemaritimemobileserviceoperatinginVHFbands,asidentifiedbelow:Part1:"Technicalcharacteristicsandmethodsofmeasurement";Part 2: "Harmonized EN covering essential requirements for article 3.2 of the R&TTE Directive";Part3:"HarmonizedENcoveringessentialrequirementsofarticle3.3(e)oftheR&TTEDirective".NationaltranspositiondatesDateoflatestannouncementofthisEN(doa):31March2001DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):30September2001DateofwithdrawalofanyconflictingNationalStandard(dow):30September2001SIST EN 300 162-1 V1.2.2:2003
ETSIETSIEN300162-1V1.2.2(2000-12)91ScopeThepresentdocumentspecifiestheminimumrequirementsforshipborneVeryHighFrequency(VHF)transmittersandreceiverscapableofvoiceandDigitalSelectiveCalling(DSC),fittedwithanexternalantennaconnectorforuseonboardships.ThepresentdocumentlaysdownminimumrequirementsforVHFradiotransmittersandreceiversoperatingincertainfrequencybandsallocatedtothemaritimemobileservice,andincorporatestherequirementsoftherelevantrecommendationsoftheInternationalMaritimeOrganization(IMO).2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublicationand/oreditionnumberorversionnumber)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.[1]RadioRegulations,Appendix18(1990):"TableofTransmittingFrequenciesintheBand156-174MHzforStationsintheMaritimeMobileService".[2]RadioRegulations,Appendix19(1990):"TechnicalCharacteristicsforTransmittersandReceiversusedintheMaritimeMobileServiceintheBand156-174MHz".[3]ITU-TRecommendationE.161(1995):"Arrangementofdigits,lettersandsymbolsontelephonesandotherdevicesthatcanbeusedforgainingaccesstoatelephonenetwork".[4]ITU-RRecommendationM.493-8(1997):"Digitalselective-callingsystemforuseinthemaritimemobileservice".[5]ITU-RRecommendationM.541-7(1997):"Operationalproceduresfortheuseofdigitalselective-calling(DSC)equipmentinthemaritimemobileservice".[6]IMOResolutionA.803(19):"PerformanceStandardsforShipborneVHFRadioInstallationscapableofVoiceCommunicationsandDigitalSelectiveCalling".[7]IMOResolutionA.524(13):"PerformanceStandardforVHFMultipleWatchfacilities".[8]ITU-TRecommendationP.53(1988):"Psophometerforuseontelephone-typecircuits".[9]IEC1162-1(1995-11):"Maritimenavigationandradiocommunicationequipmentandsystems-Digitalinterfaces-Part1:Singletalkerandmultiplelisteners".[10]ETSIETS300828(1997):"RadioEquipmentandSystems(RES);ElectroMagneticCompatibility(EMC)forradiotelephonetransmittersandreceiversforthemaritimemobileserviceoperatingintheVHFbands".[11]ETSIETR028:"RadioEquipmentandSystems(RES);Uncertaintiesinthemeasurementofmobileradioequipmentcharacteristics".[12]ETSIEN300338:"ElectromagneticcompatibilityandRadiospectrumMatters(ERM);Technicalcharacteristicsandmethodsofmeasurementforequipmentforgeneration,transmissionandreceptionofDigitalSelectiveCalling(DSC)inthemaritimeMF,MF/HFand/orVHFmobileservice".[13]ITU-RRecommendationSM332-4:"Selectivityofreceivers".SIST EN 300 162-1 V1.2.2:2003
ETSIETSIEN300162-1V1.2.2(2000-12)103Definitions,symbolsandabbreviations3.1DefinitionsForthepurposeofthepresentdocument,thefollowingtermsanddefinitionsapply:Channel16:frequencyof156,800MHzG3E:Phase-modulation(Frequencymodulationwithapre-emphasisof6dB/octave)forspeechG2B:Phase-modulationwithdigitalinformation,withasub-carrierforDigitalSelectiveCalling(DSC)operationmodulationindex:ratiobetweenthefrequencydeviationandthemodulationfrequencyperformancecheck:checkof:-thetransmittercarrierpowerandfrequency;and-receiversensitivity(seeclause7.2)3.2SymbolsForthepurposesofthepresentdocument,thefollowingsymbolsapply:dBAdBrelativeto2x10-5Pae.m.f.electromotiveforce3.3AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationsapply:adamplitudedifferenceDSCDigitalSelectiveCallingEUTEquipmentUnderTestfdfrequencydifferenceFSIFrequencySetInformationRFRadioFrequencyrmsrootmeansquareSFIScanningFrequencyInformationSINADSignal+Noise+Distortion/Noise+DistortionVHFVeryHighFrequency4Generalandoperationalrequirements4.1ConstructionThemanufacturershalldeclarethatcompliancetotherequirementofclause4isachievedandshallproviderelevantdocumentation.Themechanicalandelectricalconstructionandfinishoftheequipmentshallconforminallrespectstogoodengineeringpractice,andtheequipmentshallbesuitableforuseonboardships.Allcontrolsshallbeofsufficientsizetoenabletheusualcontrolfunctionstobeeasilyperformedandthenumberofcontrolsshouldbetheminimumnecessaryforsimpleandsatisfactoryoperation.Allpartsoftheequipmenttobecheckedduringinspectionormaintenanceoperationsshallbereadilyaccessible.Thecomponentsshallbereadilyidentifiable.SIST EN 300 162-1 V1.2.2:2003
ETSIETSIEN300162-1V1.2.2(2000-12)11Technicaldocumentationshallbesuppliedwiththeequipment.TheVHFmaritimemobileserviceusesbothsingle-frequencyandtwo-frequencychannels.Fortwo-frequencychannelsthereshallbeaseparationof4,6MHzbetweenthetransmittingfrequencyandthereceivingfrequency(seeRadioRegulations[1]).Theequipment,whichcanconsistofmorethanoneunit,shallbecapableofoperatingonsinglefrequencyandtwo-frequencychannelswithmanualcontrol(simplex).Itmayalsobecapableofoperatingontwo-frequencychannelswithoutmanualcontrol(duplex).TheequipmentshallbeabletooperateonallchannelsdefinedinAppendix18totheRadioRegulations[1].Operationonchannels75and76shallbepreventedbyappropriatemeans.AdditionalVHFchannelsoutsidethosedefinedbyAppendix18totheRadioRegulations[1]mayalsobeprovided,butmeansshallbeprovidedtoblockanyoralloftheseadditionalchannels,asmayberequiredbyanAdministration,beforeinstallationonboardships.Itshallnotbepossiblefortheusertounblockorblocktheseadditionalchannels.Theequipmentshallbesodesignedthatuseofchannel70forpurposesotherthanDigitalSelectiveCalling(DSC)isprevented(seeITU-RRecommendationM.493-8[4]andITU-RRecommendationM.541-7[5]).Itshallnotbepossibletotransmitwhileanyfrequencysynthesizerusedwithinthetransmitterisoutoflock.Itshallnotbepossibletotransmitduringchannelswitchingoperations.4.2ControlsandindicatorsTheequipmentshallhaveachannelselectorandshallindicatethedesignator,asshowninAppendix18totheRadioRegulations[1],ofthechannelatwhichtheinstallationisset.Thechanneldesignatorshallbelegibleirrespectiveoftheexternallightingconditions.Channels16and70shouldbedistinctivelymarked.Selectionofchannel16,andifpossiblechannel70,shallbebyreadilyaccessiblemeans(e.g.adistinctivelymarkedkey).Whereaninputpanelontheequipmentforenteringthedigits0-9isprovided,thisshallconformtoITU-TRecommendationE.161[3].Theequipmentshallhavethefollowingadditionalcontrolsandindicators(seeIMOResolutionA.803(19)[6]):-on/offswitchfortheentireinstallationwithavisualindicationthattheinstallationisinoperation;-amanualnon-lockingpushtotalkswitchtooperatethetransmitter;-on/offswitchfortheloudspeaker;-aswitchforreducingtransmitteroutputpowertonomoretha
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