ETSI EN 301 025 V1.1.1 (1998-08)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.NRPXQLNDFLMVNRNOLFDElectroMagnetic Compatibility and Radio Spectrum Matters (ERM); Technical characteristics and methods of measurement for VHF radiotelephone equipment for general communications and associated equipment for Class D Digital Selective Calling (DSC)33.100.01Elektromagnetna združljivost na splošnoElectromagnetic compatibility in general33.060.99Druga oprema za radijske komunikacijeOther equipment for radiocommunicationsICS:Ta slovenski standard je istoveten z:EN 301 025 Version 1.1.1SIST EN 301 025:2000en01-december-2000SIST EN 301 025:2000SLOVENSKI

EN 301 025 V1.1.1 (1998-08)European Standard (Telecommunications series)Electromagnetic compatibilityand Radio spectrum Matters (ERM);Technical characteristics and methods of measurement forVHF radiotelephone equipment for general communicationsand associated equipment for Class "D"Digital Selective Calling (DSC)SIST EN 301 025:2000

ETSIEN 301 025 V1.1.1 (1998-08)2ReferenceDEN/ERM-RP01-019 (9ho00ico.PDF)KeywordsMaritime, radio, trafficETSIPostal addressF-06921 Sophia Antipolis Cedex - FRANCEOffice address650 Route des Lucioles - Sophia AntipolisValbonne - FRANCETel.: +33 4 92 94 42 00

Fax: +33 4 93 65 47 16Siret N° 348 623 562 00017 - NAF 742 CAssociation à but non lucratif enregistrée à laSous-Préfecture de Grasse (06) N° 7803/88Internetsecretariat@etsi.frhttp://www.etsi.frhttp://www.etsi.orgCopyright NotificationNo 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 1998.All rights reserved.SIST EN 301 025:2000

ETSIEN 301 025 V1.1.1 (1998-08)3ContentsIntellectual Property Rights................................................................................................................................9Foreword............................................................................................................................................................91Scope......................................................................................................................................................102References..............................................................................................................................................103Definitions and abbreviations................................................................................................................113.1Definitions.......................................................................................................................................................113.2Abbreviations...................................................................................................................................................114General and operational requirements...................................................................................................114.1General.............................................................................................................................................................114.2Composition.....................................................................................................................................................114.3Construction.....................................................................................................................................................124.4Controls and indicators....................................................................................................................................124.5Facilities for coding and decoding of DSC......................................................................................................134.5.1Call functions.............................................................................................................................................134.5.2MANUAL calls..........................................................................................................................................134.5.3Distress calls...............................................................................................................................................134.5.4ALL SHIPS calls........................................................................................................................................144.5.5Incoming calls............................................................................................................................................144.6DSC display.....................................................................................................................................................144.7Handset and loudspeaker.................................................................................................................................144.8Safety precautions............................................................................................................................................144.9Labelling..........................................................................................................................................................154.10Warm up..........................................................................................................................................................155Technical requirements..........................................................................................................................155.1Switching time.................................................................................................................................................155.2Class of emission and modulation characteristics............................................................................................155.3Facilities for DSC transmission and reception.................................................................................................155.3.1General.......................................................................................................................................................155.3.2Decoding....................................................................................................................................................165.3.3Free channel transmission..........................................................................................................................165.3.4Automatic acknowledgement.....................................................................................................................165.3.5Automatic re-transmission of distress calls................................................................................................165.4Ships identity - MMSI and Group MMSI........................................................................................................165.5Entry of position information...........................................................................................................................165.6Alarm circuits..................................................................................................................................................175.6.1Distress and urgency..................................................................................................................................175.6.2Other categories.........................................................................................................................................175.6.3Acoustic alarms..........................................................................................................................................175.6.4Cancellation of alarms................................................................................................................................175.7Facilities for automatic identification..............................................................................................................175.8Multiple watch facilities...................................................................................................................................175.8.1General.......................................................................................................................................................175.8.2Scanning provisions...................................................................................................................................175.8.3Scanning characteristics.............................................................................................................................186General conditions of measurement.......................................................................................................186.1Arrangements for test signals applied to the receiver input.............................................................................186.2Squelch............................................................................................................................................................186.3Normal test modulation....................................................................................................................................186.4Artificial antenna.............................................................................................................................................196.5Arrangements for test signals applied to the transmitter input.........................................................................196.6Test channels...................................................................................................................................................19SIST EN 301 025:2000

ETSIEN 301 025 V1.1.1 (1998-08)46.7Generation and examination of the digital selective call signal.......................................................................196.8Standard test signals for DSC..........................................................................................................................196.9Determination of the symbol error ratio in the output of the receiving part.....................................................196.10Measurement uncertainty and interpretation of the measured results..............................................................206.10.1Measurement uncertainty...........................................................................................................................206.10.2Interpretation of the measurement results...................................................................................................206.11Test conditions, power sources, and ambient temperatures.............................................................................206.11.1Normal and extreme test conditions...........................................................................................................206.11.2Test power source......................................................................................................................................206.12Normal test conditions.....................................................................................................................................216.12.1Normal temperature and humidity..............................................................................................................216.12.2Normal power sources................................................................................................................................216.12.2.1Battery power source............................................................................................................................216.12.2.2Other power sources.............................................................................................................................216.13Extreme test conditions....................................................................................................................................216.13.1Extreme temperatures.................................................................................................................................216.13.2Extreme values of test power sources.........................................................................................................216.13.2.1Battery power source............................................................................................................................216.13.2.2Other power sources.............................................................................................................................216.14Procedure for tests at extreme temperatures....................................................................................................217Environmental tests................................................................................................................................227.1Introduction......................................................................................................................................................227.2Procedure.........................................................................................................................................................227.3Performance check...........................................................................................................................................227.4Vibration test...................................................................................................................................................227.4.1Definition...................................................................................................................................................227.4.2Method of measurement.............................................................................................................................227.4.3Requirement...............................................................................................................................................237.5Temperature tests.............................................................................................................................................237.5.1Definition...................................................................................................................................................237.5.2Dry heat......................................................................................................................................................237.5.2.1Definition..............................................................................................................................................237.5.2.2Method of measurement.......................................................................................................................237.5.2.3Requirement..........................................................................................................................................237.5.3Damp heat..................................................................................................................................................237.5.3.1Definition..............................................................................................................................................237.5.3.2Method of measurement.......................................................................................................................237.5.3.3Requirement..........................................................................................................................................247.5.4Low temperature........................................................................................................................................247.5.4.1Definition..............................................................................................................................................247.5.4.2Method of measurement.......................................................................................................................247.5.4.3Requirement..........................................................................................................................................248Transmitter.............................................................................................................................................248.1Frequency error................................................................................................................................................248.1.1Definition...................................................................................................................................................248.1.2Method of measurement.............................................................................................................................248.1.3Limits.........................................................................................................................................................258.2Carrier power...................................................................................................................................................258.2.1Definition...................................................................................................................................................258.2.2Method of measurement.............................................................................................................................258.2.3Limits.........................................................................................................................................................258.2.3.1Normal test conditions..........................................................................................................................258.2.3.2Extreme test conditions.........................................................................................................................258.3Frequency deviation.........................................................................................................................................258.3.1Definition...................................................................................................................................................258.3.2Maximum permissible frequency deviation................................................................................................258.3.2.1Method of measurement.......................................................................................................................258.3.2.2Limits....................................................................................................................................................268.3.3Reduction of frequency deviation at modulation frequencies above 3 kHz...............................................26SIST EN 301 025:2000

ETSIEN 301 025 V1.1.1 (1998-08)58.3.3.1Method of measurement.......................................................................................................................268.3.3.2Limits....................................................................................................................................................268.4Sensitivity of the modulator, including microphone........................................................................................268.4.1Definition...................................................................................................................................................268.4.2Method of measurement.............................................................................................................................278.4.3Limits.........................................................................................................................................................278.5Audio frequency response................................................................................................................................278.5.1Definition...................................................................................................................................................278.5.2Method of measurement.............................................................................................................................278.5.3Limit...........................................................................................................................................................278.6Audio frequency harmonic distortion of the emission.....................................................................................288.6.1Definition...................................................................................................................................................288.6.2Method of measurement.............................................................................................................................288.6.2.1Normal test conditions..........................................................................................................................298.6.2.2Extreme test conditions.........................................................................................................................298.6.3Limits.........................................................................................................................................................298.7Adjacent channel power...................................................................................................................................298.7.1Definition...................................................................................................................................................298.7.2Method of measurement.............................................................................................................................298.7.3Limits.........................................................................................................................................................298.8Conducted spurious emissions conveyed to the antenna..................................................................................308.8.1Definition...................................................................................................................................................308.8.2Method of measurement.............................................................................................................................308.8.3Limit...........................................................................................................................................................308.9Cabinet radiation and conducted spurious emissions other than those conveyed to the antenna.....................308.9.1Definitions..................................................................................................................................................308.9.2Method of measurement.............................................................................................................................308.9.3Limits.........................................................................................................................................................318.10Transient frequency behaviour of the transmitter............................................................................................318.10.1Definitions..................................................................................................................................................318.10.2Method of measurement.............................................................................................................................328.10.3Limits.........................................................................................................................................................348.11Residual modulation of the transmitter............................................................................................................348.11.1Definition...................................................................................................................................................348.11.2Method of measurement.............................................................................................................................348.11.3Limit...........................................................................................................................................................348.12Frequency error (demodulated DSC signal).....................................................................................................348.12.1Definition...................................................................................................................................................348.12.2Method of measurement.............................................................................................................................358.12.3Limits.........................................................................................................................................................358.13Modulation index for DSC...............................................................................................................................358.13.1Definition...................................................................................................................................................358.13.2Method of measurement.............................................................................................................................358.13.3Limits.........................................................................................................................................................358.14Modulation rate for DSC.................................................................................................................................358.14.1Definition...................................................................................................................................................358.14.2Method of measurement.............................................................................................................................358.14.3Limits.........................................................................................................................................................358.15Testing of generated call sequences.................................................................................................................368.15.1Definition...................................................................................................................................................368.15.2Method of measurement.............................................................................................................................368.15.3Requirement...............................................................................................................................................369Radiotelephone receiver.........................................................................................................................369.1Harmonic distortion and rated audio-frequency output power.........................................................................369.1.1Definition...................................................................................................................................................369.1.2Methods of measurement...........................................................................................................................369.1.3Limits.........................................................................................................................................................379.2Audio frequency response................................................................................................................................379.2.1Definition...................................................................................................................................................379.2.2Method of measurement.............................................................................................................................37SIST EN 301 025:2000

ETSIEN 301 025 V1.1.1 (1998-08)69.2.3Limits.........................................................................................................................................................379.3Maximum usable sensitivity.............................................................................................................................389.3.1Definition...................................................................................................................................................389.3.2Method of measurement.............................................................................................................................389.3.3Limits.........................................................................................................................................................399.4Co-channel rejection........................................................................................................................................399.4.1Definition...................................................................................................................................................399.4.2Method of measurement.............................................................................................................................399.4.3Limit.....................................................................