SIST EN 300 373-3 V.1.1.1:2004
(Main)Electromagnetic compatibility and Radio spectrum Matters (ERM); Maritime mobile transmitters and receivers for use in the MF and HF bands; Part 3: Harmonized EN covering essential requirements under article 3.3(e) of the R&TTE Directive
- Abstract
Is intended to become a harmonised standard, the reference of which is intended for publication in the Official Journal of the European Communities referencing Directive 1999/5/EC. Refers to requirements from EN 300 373-1
- Status
- Published
- Publication Date
- 30-Jun-2004
- Technical Committee
- RES - Radio equipment and systems
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Jul-2004
- Due Date
- 01-Jul-2004
- Completion Date
- 01-Jul-2004
- Mandate
- M/357
SIST EN 300 373-3 V.1.1.1:2004 is the SIST adoption of ETSI EN 300 373-3 V1.1.1, a harmonized European standard for maritime mobile transmitters and receivers used in the MF and HF bands. It specifies requirements linked to access to emergency services under article 3.3(e) of the R&TTE Directive, so it is aimed at equipment makers, test labs, and conformity assessors working on shipborne radio equipment.
What does SIST EN 300 373-3 V.1.1.1:2004 specify?
SIST EN 300 373-3 V.1.1.1:2004 specifies the essential requirements for maritime mobile transmitters and receivers for vessels operating in the MF or MF/HF bands. The standard covers SSB telephony and DSC functions, and it also defines interfaces where the DSC encoder or decoder is not integrated.
The scope applies to equipment used in the Maritime Mobile Service in the ITU Radio Regulations bands from 1 605 kHz to 4 000 kHz and from 4 MHz to 27,5 MHz. It also states that other maritime functions, such as Morse telegraphy or NBDP, must meet the relevant standards for those services.
The document is organized into a short front matter, then:
- Clause 1 Scope
- Clause 2 References
- Clause 3 Definitions, symbols and abbreviations
- Clause 4 Technical requirements specifications
- Clause 5 Testing for compliance with technical requirements
- Annex A - EN Requirements Table (EN-RT)
- Annex B - Class E Digital Selective Calling
- Annex C - Bibliography
- Annex D - The EN title in the official languages
| Annex | What it covers |
|---|---|
| Annex A | The EN Requirements Table that maps requirements to the standard |
| Annex B | Class E Digital Selective Calling, including requirements and tests |
| Annex C | Bibliography of related documents |
| Annex D | Official-language titles |
What are the key requirements of SIST EN 300 373-3 V.1.1.1:2004?
SIST EN 300 373-3 V.1.1.1:2004 combines interface, operating, environmental, and performance requirements. In practice, it tells a manufacturer what the equipment must provide, and it tells a test lab how to check compliance.
Interfaces, controls, and labeling
Clause 4.2 requires defined audio interfaces for transmitters and receivers, including 600 Ω earth-free inputs and outputs, microphone and earphone/speaker connections, and IEC 61162-1 interfaces where digital DSC or control links are used. That matters because the equipment must connect predictably to ship systems and external DSC equipment.
The standard also requires clear controls, easy identification, and labeled distress frequencies. The compass safe distance must be stated, and controls needed for distress and safety channels must be clearly marked so that bridge operators can act quickly.
Operating modes and readiness
Clause 4.2.3 limits the equipment to the MF and MF/HF maritime bands and the emission classes J3E and F1B, with J2B allowed as an alternative for DSC in a specific arrangement. Clause 4.2.4 requires the equipment to be operational within one minute after switch-on, or after the warming-up period for heated parts. This is important for emergency readiness and for equipment that uses ovens or similar stabilization features.
Protection and usability
Clause 4.2.5 requires protection against misuse, control-panel priority when multiple panels are fitted, manual gain control plus AGC for telephony receivers, and an indicator of antenna current and/or output power for transmitters. These requirements help prevent unsafe operation and make the set easier to use in a vessel environment.
Environmental and radio performance
Clauses 4.3 and 4.4 cover vibration, temperature, corrosion, rain, and radio performance. The listed limits include unwanted frequency modulation, receiver frequency error, pass band, reciprocal mixing, harmonic content, audio frequency intermodulation, AGC behavior, and protection of input circuits. In practice, these are the checks that show whether the radio stays usable on board ship and remains stable under disturbance, heat, humidity, salt, and wet conditions.
What terms does SIST EN 300 373-3 V.1.1.1:2004 define?
SIST EN 300 373-3 V.1.1.1:2004 defines several terms that are used throughout the requirements and test methods.
- Assigned frequency - the centre of the frequency band assigned to a station.
- Carrier frequency - the frequency to which the transmitter or receiver is tuned.
- Environmental profile - the range of environmental conditions under which the equipment must comply.
- Standard output power - the receiver output power used as the normal reference level, with different values for earphone, loudspeaker, and 600 Ω line outputs.
- Rated output power - the output power declared by the manufacturer, with a minimum expectation of 2 W for the receiver.
- AGC (Automatic Gain Control) - a receiver function that keeps audio output changes within limits when input level changes.
- DSC (Digital Selective Calling) - the digital calling system used for maritime radio calls and distress signaling.
- J3E, F1B, J2B - emission classes used for telephony and DSC operation in this standard.
Who uses SIST EN 300 373-3 V.1.1.1:2004?
SIST EN 300 373-3 V.1.1.1:2004 is used by radio equipment manufacturers, marine electronics designers, test laboratories, conformity assessment bodies, shipbuilders, and purchasers of shipborne radio systems. They use it to design equipment, define interfaces, plan tests, and verify that the radio supports emergency-service access features required for maritime use.
Which standards are used with SIST EN 300 373-3 V.1.1.1:2004?
SIST EN 300 373-3 V.1.1.1:2004 relies on several named documents and companion parts:
- Directive 1999/5/EC - the R&TTE Directive under which the harmonized standard is intended to support essential requirements.
- ITU Radio Regulations - define the maritime MF and HF frequency bands used in the scope.
- ITU-R Recommendation M.493-10 - defines the DSC system referenced for DSC operation.
- ETSI EN 300 373-1 - provides the technical characteristics and methods of measurement that this part refers to.
- ETSI EN 300 373-2 - provides the harmonized EN for article 3.2, and several measurements in this part use its output-power results.
- IEC 61162-1 - defines the digital interface used for DSC and control connections.
- ITU-T Recommendation E.161 and ISO 3791 - define keypad layouts used for digit entry.
- ETSI TR 100 028 - provides the uncertainty method used for measurement interpretation.
- ETSI EN 300 019-1-6 - gives ship environmental classifications used for the operating profile.
What does the SIST EN 300 373-3 V.1.1.1:2004 document contain?
SIST EN 300 373-3 V.1.1.1:2004 contains detailed requirement clauses and test methods for maritime MF and HF radios. The test chapter covers normal and extreme conditions, power sources, artificial antennas, standard test signals, and measurement uncertainty.
It also provides concrete procedures for vibration, temperature, corrosion, and rain testing, plus radio tests for modulation, sensitivity, response, AGC, spurious behavior, and transmitter protection. Annex B adds a dedicated set of requirements and tests for Class E DSC, including call functions, display behavior, memory data, decoding, and free-channel transmission.
The document includes figures that define the allowed telephony level-control curve and the allowed audio-frequency response shape, as well as tables for distress frequencies and measurement uncertainty. Those elements are the parts a lab or design team would use directly when building a test plan or checking compliance.
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Frequently Asked Questions
SIST EN 300 373-3 V.1.1.1:2004 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Electromagnetic compatibility and Radio spectrum Matters (ERM); Maritime mobile transmitters and receivers for use in the MF and HF bands; Part 3: Harmonized EN covering essential requirements under article 3.3(e) of the R&TTE Directive". This standard covers: Is intended to become a harmonised standard, the reference of which is intended for publication in the Official Journal of the European Communities referencing Directive 1999/5/EC. Refers to requirements from EN 300 373-1
Is intended to become a harmonised standard, the reference of which is intended for publication in the Official Journal of the European Communities referencing Directive 1999/5/EC. Refers to requirements from EN 300 373-1
SIST EN 300 373-3 V.1.1.1:2004 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 300 373-3 V.1.1.1:2004 is associated with the following European legislation: EU Directives/Regulations: 1999/5/EC; Standardization Mandates: M/357. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
SIST EN 300 373-3 V.1.1.1:2004 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.NYHQþQLKElectromagnetic compatibility and Radio spectrum Matters (ERM); Maritime mobile transmitters and receivers for use in the MF and HF bands; Part 3: Harmonized EN covering essential requirements under article 3.3(e) of the R&TTE Directive47.020.70Navigacijska 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 300 373-3 Version 1.1.1SIST EN 300 373-3 V.1.1.1:2004en01-julij-2004SIST EN 300 373-3 V.1.1.1:2004SLOVENSKI
STANDARD
ETSI EN 300 373-3 V1.1.1 (2004-01)Candidate Harmonized European Standard (Telecommunications series) Electromagnetic compatibilityand Radio spectrum Matters (ERM);Maritime mobile transmitters and receiversfor use in the MF and HF bands;Part 3: Harmonized EN covering essential requirementsunder article 3.3(e) of the R&TTE Directive
ETSI ETSI EN 300 373-3 V1.1.1 (2004-01) 2
Reference DEN/ERM-TG26-027-3 Keywords maritime, mobile, radio, regulation, selcall, telephony ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE
Tel.: +33 4 92 94 42 00
Fax: +33 4 93 65 47 16
Siret N° 348 623 562 00017 - NAF 742 C Association à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N° 7803/88
Important notice Individual copies of the present document can be downloaded from: http://www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http://portal.etsi.org/tb/status/status.asp If you find errors in the present document, send your comment to: editor@etsi.org 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 2004. All rights reserved.
DECTTM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI registered for the benefit of its Members. TIPHONTM and the TIPHON logo are Trade Marks currently being registered by ETSI for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. SIST EN 300 373-3 V.1.1.1:2004
ETSI ETSI EN 300 373-3 V1.1.1 (2004-01) 3
Contents Intellectual Property Rights.8 Foreword.8 Introduction.9 1 Scope.11 2 References.11 3 Definitions, symbols and abbreviations.12 3.1 Definitions.12 3.2 Symbols.13 3.3 Abbreviations.13 4 Technical requirements specifications.13 4.1 Environmental profile.13 4.2 General, operational and technical requirements.13 4.2.1 General.13 4.2.2 General requirements.14 4.2.2.1 Composition.14 4.2.2.1.1 Audio frequencies interfaces.14 4.2.2.1.2 Digital input panels.15 4.2.2.2 Construction.15 4.2.2.3 Controls and indicators.15 4.2.2.3.1 General.15 4.2.2.3.2 Illumination.15 4.2.2.4 Labelling.16 4.2.2.4.1 General.16 4.2.2.4.2 Distress frequencies.16 4.2.2.5 Protection against mishandling.16 4.2.3 Operational requirements.16 4.2.3.1 Frequency bands.16 4.2.3.1.1 MF band.16 4.2.3.1.2 HF bands.16 4.2.3.2 Classes of emission.17 4.2.4 Warming up period.17 4.2.4.1 Time.17 4.2.4.2 Heaters.17 4.2.4.3 Heating circuits.17 4.2.4.4 Delay.17 4.2.5 Technical requirements.17 4.2.5.1 Distress controls.17 4.2.5.2 Telephony transmit control.17 4.2.5.3 Misuse.17 4.2.5.4 Control panel priority.18 4.2.5.5 Manual gain control and Automatic Gain Control (AGC).18 4.2.5.6 Output indication.18 4.3 Environmental requirements.18 4.3.1 Vibration test.18 4.3.1.1 Definition.18 4.3.1.2 Requirement.18 4.3.1.3 Conformance.18 4.3.2 Temperature tests.18 4.3.2.1 Definition.18 4.3.2.2 Dry heat.18 4.3.2.2.1 Definition.18 4.3.2.2.2 Requirement.18 4.3.2.2.3 Conformance.19 4.3.2.3 Damp heat.19 4.3.2.3.1 Definition.19 SIST EN 300 373-3 V.1.1.1:2004
ETSI ETSI EN 300 373-3 V1.1.1 (2004-01) 4
4.3.2.3.2 Requirement.19 4.3.2.3.3 Conformance.19 4.3.2.4 Low temperature cycle.19 4.3.2.4.1 Definition.19 4.3.2.4.2 Requirement.19 4.3.2.4.3 Conformance.19 4.3.3 Corrosion test.19 4.3.3.1 Definition.19 4.3.3.2 Requirement.19 4.3.3.3 Conformance.20 4.3.4 Rain test.20 4.3.4.1 Definition.20 4.3.4.2 Requirement.20 4.3.4.3 Conformance.20 4.4 Conformance requirements.20 4.4.1 Unwanted frequency modulation.20 4.4.1.1 Definition.20 4.4.1.2 Limit.20 4.4.1.3 Conformance.20 4.4.2 Sensitivity of the microphone and the 600 Ω line inputs for SSB telephony.20 4.4.2.1 Definition.20 4.4.2.2 Limits.20 4.4.2.3 Conformance.20 4.4.3 Automatic level control and/or limiter for SSB telephony.21 4.4.3.1 Definition.21 4.4.3.2 Limits.21 4.4.3.3 Conformance.21 4.4.4 Audio frequency response of SSB telephony.21 4.4.4.1 Definition.21 4.4.4.2 Limits.21 4.4.4.3 Conformance.22 4.4.5 Residual hum and noise power for telephony.22 4.4.5.1 Definition.22 4.4.5.2 Limits.22 4.4.5.3 Conformance.22 4.4.6 Residual frequency modulation on DSC.22 4.4.6.1 Definition.22 4.4.6.2 Limits.23 4.4.6.3 Conformance.23 4.4.7 Continuous operation on telephony.23 4.4.7.1 Definition.23 4.4.7.2 Limits.23 4.4.7.3 Conformance.23 4.4.8 Protection of transmitter.23 4.4.8.1 Definition.23 4.4.8.2 Limits.23 4.4.8.3 Conformance.23 4.4.9 Receiver frequency error.23 4.4.9.1 Definition.23 4.4.9.2 Limits.24 4.4.9.3 Conformance.24 4.4.10 Unwanted frequency modulation.24 4.4.10.1 Definition.24 4.4.10.2 Limits.24 4.4.10.3 Conformance.24 4.4.11 Pass band.24 4.4.11.1 Definition.24 4.4.11.2 Limits.24 4.4.11.3 Conformance.24 4.4.12 Reciprocal mixing.24 4.4.12.1 Definition.24 4.4.12.2 Limits.24 SIST EN 300 373-3 V.1.1.1:2004
ETSI ETSI EN 300 373-3 V1.1.1 (2004-01) 5
4.4.12.3 Conformance.24 4.4.13 Harmonic content in output.25 4.4.13.1 Definition.25 4.4.13.2 Limits.25 4.4.13.3 Conformance.25 4.4.14 Audio frequency intermodulation.25 4.4.14.1 Definition.25 4.4.14.2 Limits.25 4.4.14.3 Conformance.25 4.4.15 Internally generated spurious signals.25 4.4.15.1 Definition.25 4.4.15.2 Limit.25 4.4.15.3 Conformance.25 4.4.16 AGC efficiency.25 4.4.16.1 Definition.25 4.4.16.2 Limits.26 4.4.16.3 Conformance.26 4.4.17 AGC time constants (attack and recovery time).26 4.4.17.1 Definitions.26 4.4.17.2 Limits.26 4.4.17.3 Conformance.26 4.4.18 Protection of input circuits.26 4.4.18.1 Definition.26 4.4.18.2 Limits.26 4.4.18.3 Conformance.26 5 Testing for compliance with technical requirements.27 5.1 Test conditions, power supply and ambient temperatures.27 5.1.1 General.27 5.1.2 Test power source.27 5.1.3 Normal test conditions.27 5.1.3.1 Normal temperature and humidity.27 5.1.3.2 Normal test power source.27 5.1.3.2.1 Mains voltage and frequency.27 5.1.3.2.2 Secondary battery power sources.27 5.1.3.2.3 Other power sources.27 5.1.4 Extreme test conditions.28 5.1.4.1 Extreme temperature tests.28 5.1.4.2 Extreme values of test power source.28 5.1.4.2.1 Mains voltage and mains frequency.28 5.1.4.2.2 Secondary battery power sources.28 5.1.4.2.3 Other power sources.28 5.1.5 Artificial antennas.28 5.1.5.1 Transmitters.28 5.1.5.2 Receivers.28 5.1.6 Standard test signals.29 5.1.6.1 Test signals applied to the receiver input.29 5.1.6.1.1 Sources.29 5.1.6.1.2 Levels.29 5.1.6.2 Normal test signals.29 5.1.6.2.1 Class of emission J3E.29 5.1.6.2.2 Class of emission F1B.29 5.1.6.3 Choice of testing frequencies.29 5.1.7 Warming up period.29 5.1.7.1 Time.29 5.1.7.2 Heaters.29 5.2 Interpretation of the measurement results.30 5.3 Essential radio test suites.30 5.3.1 Environmental tests.30 5.3.1.1 Introduction.30 5.3.1.2 Procedure.30 5.3.1.3 Performance check.31 SIST EN 300 373-3 V.1.1.1:2004
ETSI ETSI EN 300 373-3 V1.1.1 (2004-01) 6
5.3.1.4 Vibration test.31 5.3.1.5 Temperature tests.32 5.3.1.5.1 Dry heat.32 5.3.1.5.2 Damp heat.32 5.3.1.5.3 Low temperature cycle.33 5.3.1.6 Corrosion test.33 5.3.1.6.1 General.33 5.3.1.6.2 Method of measurement.33 5.3.1.7 Rain test.34 5.3.1.7.1 General.34 5.3.1.7.2 Method of measurement.34 5.3.2 Conformance tests.35 5.3.2.1 Unwanted frequency modulation.35 5.3.2.2 Sensitivity of the microphone and the 600 Ω line inputs for SSB telephony.35 5.3.2.3 Automatic level control and/or limiter for SSB telephony.35 5.3.2.4 Audio frequency response of SSB telephony.36 5.3.2.5 Residual hum and noise power for telephony.36 5.3.2.6 Residual frequency modulation on DSC.36 5.3.2.7 Continuous operation on telephony.36 5.3.2.8 Protection of transmitter.37 5.4 Other test specifications.37 5.4.1 General.37 5.4.2 Receiver frequency error.37 5.4.3 Unwanted frequency modulation.37 5.4.4 Pass band.38 5.4.4.1 Class of emission J3E.38 5.4.5 Reciprocal mixing.38 5.4.6 Harmonic content in output.38 5.4.7 Audio frequency intermodulation.38 5.4.8 Internally generated spurious signals.39 5.4.9 AGC efficiency.39 5.4.9.1 Settings.39 5.4.9.2 Increase in Signal-to-Noise Ratio (SNR).39 5.4.10 AGC time constants (attack and recovery time).39 5.4.11 Protection of input circuits.40 Annex A (normative): The EN Requirements Table (EN-RT).41 Annex B (normative): Class E Digital Selective Calling.43 B.1 General, operational and technical requirements.43 B.1.1 General and operational requirements.43 B.1.1.1 Composition.43 B.1.1.2 Frequencies.43 B.1.1.3 Controls and indicators.43 B.1.1.4 Facilities for coding and decoding of DSC.43 B.1.1.4.1 Call functions.43 B.1.1.4.2 MANUAL calls.44 B.1.1.4.3 Distress calls.44 B.1.1.4.4 ALL SHIPS calls.44 B.1.1.4.5 Incoming calls.44 B.1.1.5 DSC display.44 B.1.1.6 External loudspeaker.45 B.1.1.7 Memory data.45 B.1.1.8 Labelling.45 B.1.1.9 Warm up.45 B.2 Technical requirements.45 B.2.1 Class of emission.45 B.2.2 Facilities for DSC transmission and reception.45 B.2.2.1 General.45 B.2.2.2 Decoding.46 B.2.2.3 Free channel transmission.46 SIST EN 300 373-3 V.1.1.1:2004
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B.2.2.4 Automatic acknowledgement.46 B.2.2.5 Automatic re-transmission of distress calls.46 B.2.3 Ships identity - MMSI and Group MMSI.46 B.2.4 Entry of position information.46 B.2.5 Alarm circuits.47 B.2.5.1 Distress and urgency.47 B.2.5.2 Other categories.47 B.2.5.3 Acoustic alarms.47 B.2.5.4 Cancellation of alarms.47 B.2.6 Watch facilities.47 B.2.6.1 General.47 B.3 Technical requirements and methods of test for the watch receiver and associated DSC decoder.47 B.3.1 Scanning watch receiver efficiency.47 B.3.1.1 Definition.47 B.3.1.2 Method of measurement.47 B.3.1.3 Limits.48 B.3.2 Calling sensitivity.48 B.3.2.1 Definition.48 B.3.2.2 Method of measurement.48 B.3.2.3 Limits.48 B.3.3 Adjacent channel selectivity.48 B.3.3.1 Definition.48 B.3.3.2 Method of measurement.48 B.3.3.3 Limits.49 B.3.4 Co-channel rejection.49 B.3.4.1 Definition.49 B.3.4.2 Method of measurements.
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