General Information

Abstract

The present document states the minimum requirements for radio transmitters and receivers, for use on ships, operating in either the Medium Frequency (MF) only or in the Medium and High Frequency (MF/HF) bands allocated in the International Telecommunications Union (ITU) Radio Regulations [1], to the Maritime Mobile Service (MMS). The present document includes the International Maritime Organization (IMO) and ITU requirements included in the relevant provisions of the Radio Regulations [1], the International Convention for the Safety Of Life At Sea  (SOLAS) [3], the IMO Resolutions A.694(17) [5] and A806 (19) [4] and is primarily intended to specify equipment suitable for fitting to ships subject to the SOLAS convention and complying with the European Marine Equipment Directive [20]. The present document refers to equipment for one or more of the following: -Single SideBand (SSB) modulation for telephony transmission and reception (J3E); -Frequency Shift Keying (FSK) or SSB modulation of a keyed sub-carrier to transmit and receive Digital Selective Calling (DSC) signals in accordance with ITU-R Recommendation M.493-10 [6]. The present document also refers to radio equipment, which is not integrated with the DSC encoder or decoder, but defines the interfaces with such equipment. NOTE:The requirements for integrated equipment may be found in other relevant ETSs. The tests in the present document are applicable to receivers for operating on all frequencies in the bands 1 605 kHz to 4 000 kHz or 1 605 kHz to 27,5 MHz as allocated in the Radio Regulations [1], to the MMS. Other spot frequency receivers should meet all the requirements of the present document and other relevant standards as applicable for the frequencies and modes provided. If the equipment, or parts of it, are designed in such a manner that they can be used for other categories of maritime radiocommunication (e.g. Morse telegraphy or NBDP (ETS 300 067 [10]), those parts of the equipment should fulfil the relevant requirements of the appropriate standards for the service(s) in question e.g. ETS 300 067 [10]. The EMC parameters defined in the clauses of this standard covering emission tests and immunity test (see clauses 8 and 9) have been selected to ensure an adequate level of compatibility for apparatus in marine environments. Compliance to the EMC requirements of this standard does not signify compliance to any safety requirements. However, it is the responsibility of the assessor of the equipment to record in their test report any observations regarding the test sample becoming dangerous or unsafe as a result of the application of the tests called for herein. The present document does not address the testing of ancillary equipment on a stand-alone basis, i.e. separately from the radio equipment with which it is to be used.

Status
Published
Public Enquiry End Date
31-Jul-2009
Publication Date
18-Jan-2010
Technical Committee
MOC - Mobile Communications
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
18-Dec-2009
Due Date
22-Feb-2010
Completion Date
19-Jan-2010
Mandate
M/357

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ETSI EN 300 373-3 V1.1.2 (2009-05) - 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; Equipment with integrated or associated equipment for Class E Digital Selective Calling (DSC)

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ETSI EN 300 373-3 V1.1.2 (2009-10) - 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; Equipment with integrated or associated equipment for Class E Digital Selective Calling (DSC)

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ETSI EN 300 373-3 V1.2.1 (2009-12) - 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; Equipment with integrated or associated equipment for Class E Digital Selective Calling (DSC)

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SIST EN 300 373-3 V1.2.1:2010

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Overview

SIST EN 300 373-3 V1.2.1:2010 is a harmonized European standard developed by the Slovenian Institute for Standardization (SIST) and ETSI. This standard defines the minimum requirements for electromagnetic compatibility (EMC) and radio spectrum use for maritime mobile transmitters and receivers operating in the medium frequency (MF) and high frequency (HF) bands. The focus is on maritime radio equipment with integrated or associated Class E Digital Selective Calling (DSC) capabilities, in accordance with essential requirements under Article 3.3(e) of the R&TTE Directive.

This standard is primarily intended for equipment fitted to ships governed by the International Convention for the Safety of Life at Sea (SOLAS) and compliant with the European Marine Equipment Directive (MED). It ensures that maritime communication equipment meets technical, operational, and EMC requirements necessary for reliable ship-to-ship and ship-to-shore communication.

Key Topics

  • Electromagnetic Compatibility (EMC): Specifies emission and immunity test parameters to ensure reliable operation in harsh marine environments.
  • Radio Spectrum Usage: Defines operational frequency ranges within MF (1,605 kHz to 4,000 kHz) and HF (up to 27.5 MHz) bands allocated for maritime mobile services.
  • Digital Selective Calling (DSC): Requirements for equipment supporting DSC as per ITU-R Recommendation M.493, including interface definitions for non-integrated DSC modules.
  • Operational Modes: Covers operation with Single Sideband (SSB) modulation for voice (J3E) and Frequency Shift Keying (FSK) or SSB for DSC signals.
  • Conformance Testing: Detailed procedures and performance checks for functional and environmental tests, including vibration, temperature, humidity, corrosion, and rain resistance.
  • SOLAS and IMO Compliance: Aligns with relevant IMO resolutions and international maritime conventions for safety and interoperability.
  • Equipment Composition: Describes requirements for audio interfaces, control panels, labeling, and protection against mishandling.

Applications

SIST EN 300 373-3 V1.2.1:2010 is applicable to a broad range of maritime mobile communication equipment installed on SOLAS-compliant vessels. Key practical applications include:

  • Ship Radiocommunication: Ensures reliable voice and distress communication between ships and with shore-based authorities using MF and HF radio equipment.
  • Search and Rescue (SAR): Facilitates emergency signaling and coordination during maritime incidents through robust DSC functionality.
  • Fleet Coordination: Supports routine operations, navigational safety broadcasts, and fleet management over international waters by providing dependable communication links.
  • Compliance for Equipment Manufacturers: Provides a clear framework for manufacturers developing new maritime transmitters and receivers to meet European, IMO, and ITU requirements.
  • Integration with Maritime Systems: Allows integration of DSC and telephony with modern navigation and control systems on board ships.

Related Standards

Several international and European standards complement SIST EN 300 373-3 V1.2.1:2010 to ensure full compliance and interoperability:

  • SOLAS Convention: International maritime safety standard for vessel equipment and operation.
  • ITU Radio Regulations: Allocates frequency bands and operational guidelines for maritime services.
  • IMO Resolutions A.694(17) and A.806(19): Define technical performance standards for maritime radio equipment.
  • ETS 300 067: Specifies requirements for NBDP (Narrow-Band Direct Printing) and Morse telegraphy equipment.
  • EN 301 843 Series: Additional EMC requirements for maritime radio and telecommunication terminal equipment.
  • Marine Equipment Directive (MED): Governs equipment certification and conformity assessment procedures in the European Union.

Practical Value

By adhering to SIST EN 300 373-3 V1.2.1:2010, maritime organizations and equipment manufacturers ensure:

  • Compliance with maritime regulations
  • Interference-free and dependable communication
  • Greater safety through standardized distress signaling
  • Seamless integration and operation across international fleets

This standard is essential for reliable maritime communications, regulatory compliance, and operational safety at sea.

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Standard

ETSI EN 300 373-3 V1.1.2 (2009-05) - 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; Equipment with integrated or associated equipment for Class E Digital Selective Calling (DSC)

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ETSI EN 300 373-3 V1.1.2 (2009-10) - 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; Equipment with integrated or associated equipment for Class E Digital Selective Calling (DSC)

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Standard

ETSI EN 300 373-3 V1.2.1 (2009-12) - 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; Equipment with integrated or associated equipment for Class E Digital Selective Calling (DSC)

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Standard

SIST EN 300 373-3 V1.2.1:2010

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Frequently Asked Questions

SIST EN 300 373-3 V1.2.1:2010 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 - Equipment with integrated or associated equipment for Class E Digital Selective Calling (DSC)". This standard covers: The present document states the minimum requirements for radio transmitters and receivers, for use on ships, operating in either the Medium Frequency (MF) only or in the Medium and High Frequency (MF/HF) bands allocated in the International Telecommunications Union (ITU) Radio Regulations [1], to the Maritime Mobile Service (MMS). The present document includes the International Maritime Organization (IMO) and ITU requirements included in the relevant provisions of the Radio Regulations [1], the International Convention for the Safety Of Life At Sea (SOLAS) [3], the IMO Resolutions A.694(17) [5] and A806 (19) [4] and is primarily intended to specify equipment suitable for fitting to ships subject to the SOLAS convention and complying with the European Marine Equipment Directive [20]. The present document refers to equipment for one or more of the following: -Single SideBand (SSB) modulation for telephony transmission and reception (J3E); -Frequency Shift Keying (FSK) or SSB modulation of a keyed sub-carrier to transmit and receive Digital Selective Calling (DSC) signals in accordance with ITU-R Recommendation M.493-10 [6]. The present document also refers to radio equipment, which is not integrated with the DSC encoder or decoder, but defines the interfaces with such equipment. NOTE:The requirements for integrated equipment may be found in other relevant ETSs. The tests in the present document are applicable to receivers for operating on all frequencies in the bands 1 605 kHz to 4 000 kHz or 1 605 kHz to 27,5 MHz as allocated in the Radio Regulations [1], to the MMS. Other spot frequency receivers should meet all the requirements of the present document and other relevant standards as applicable for the frequencies and modes provided. If the equipment, or parts of it, are designed in such a manner that they can be used for other categories of maritime radiocommunication (e.g. Morse telegraphy or NBDP (ETS 300 067 [10]), those parts of the equipment should fulfil the relevant requirements of the appropriate standards for the service(s) in question e.g. ETS 300 067 [10]. The EMC parameters defined in the clauses of this standard covering emission tests and immunity test (see clauses 8 and 9) have been selected to ensure an adequate level of compatibility for apparatus in marine environments. Compliance to the EMC requirements of this standard does not signify compliance to any safety requirements. However, it is the responsibility of the assessor of the equipment to record in their test report any observations regarding the test sample becoming dangerous or unsafe as a result of the application of the tests called for herein. The present document does not address the testing of ancillary equipment on a stand-alone basis, i.e. separately from the radio equipment with which it is to be used.

The present document states the minimum requirements for radio transmitters and receivers, for use on ships, operating in either the Medium Frequency (MF) only or in the Medium and High Frequency (MF/HF) bands allocated in the International Telecommunications Union (ITU) Radio Regulations [1], to the Maritime Mobile Service (MMS). The present document includes the International Maritime Organization (IMO) and ITU requirements included in the relevant provisions of the Radio Regulations [1], the International Convention for the Safety Of Life At Sea (SOLAS) [3], the IMO Resolutions A.694(17) [5] and A806 (19) [4] and is primarily intended to specify equipment suitable for fitting to ships subject to the SOLAS convention and complying with the European Marine Equipment Directive [20]. The present document refers to equipment for one or more of the following: -Single SideBand (SSB) modulation for telephony transmission and reception (J3E); -Frequency Shift Keying (FSK) or SSB modulation of a keyed sub-carrier to transmit and receive Digital Selective Calling (DSC) signals in accordance with ITU-R Recommendation M.493-10 [6]. The present document also refers to radio equipment, which is not integrated with the DSC encoder or decoder, but defines the interfaces with such equipment. NOTE:The requirements for integrated equipment may be found in other relevant ETSs. The tests in the present document are applicable to receivers for operating on all frequencies in the bands 1 605 kHz to 4 000 kHz or 1 605 kHz to 27,5 MHz as allocated in the Radio Regulations [1], to the MMS. Other spot frequency receivers should meet all the requirements of the present document and other relevant standards as applicable for the frequencies and modes provided. If the equipment, or parts of it, are designed in such a manner that they can be used for other categories of maritime radiocommunication (e.g. Morse telegraphy or NBDP (ETS 300 067 [10]), those parts of the equipment should fulfil the relevant requirements of the appropriate standards for the service(s) in question e.g. ETS 300 067 [10]. The EMC parameters defined in the clauses of this standard covering emission tests and immunity test (see clauses 8 and 9) have been selected to ensure an adequate level of compatibility for apparatus in marine environments. Compliance to the EMC requirements of this standard does not signify compliance to any safety requirements. However, it is the responsibility of the assessor of the equipment to record in their test report any observations regarding the test sample becoming dangerous or unsafe as a result of the application of the tests called for herein. The present document does not address the testing of ancillary equipment on a stand-alone basis, i.e. separately from the radio equipment with which it is to be used.

SIST EN 300 373-3 V1.2.1:2010 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 V1.2.1:2010 is associated with the following European legislation: EU Directives/Regulations: 1999/5/EC, TRRTP124; 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 V1.2.1:2010 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)


Draft ETSI EN 300 373-3 V1.1.2 (2009-05)
Harmonized European Standard (Telecommunications series)

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;
Equipment with integrated or associated equipment for
Class E Digital Selective Calling (DSC)

2 Draft ETSI EN 300 373-3 V1.1.2 (2009-05)

Reference
REN/ERM-TG26-081-3
Keywords
maritime, mobile, radio, regulation, selcall,
telephony
ETSI
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Important notice
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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 2009.
All rights reserved.
TM TM TM TM
DECT , PLUGTESTS , UMTS , TIPHON , the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered
for the benefit of its Members.
TM
3GPP is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners.
LTE™ is a Trade Mark of ETSI currently being registered
for the benefit of its Members and of the 3GPP Organizational Partners.
GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association.
ETSI
3 Draft ETSI EN 300 373-3 V1.1.2 (2009-05)
Contents
Intellectual Property Rights . 7
Foreword . 7
1 Scope . 8
2 References . 8
2.1 Normative references . 8
2.2 Informative references . 9
3 Definitions, symbols and abbreviations . 9
3.1 Definitions . 9
3.2 Symbols . 10
3.3 Abbreviations . 10
4 Technical requirements specifications . 11
4.1 Environmental profile . 11
4.2 General, operational and technical requirements . 11
4.2.1 General . 11
4.2.2 General requirements . 11
4.2.2.1 Composition . 11
4.2.2.1.1 Audio frequencies interfaces . 11
4.2.2.1.2 DSC Interface . 11
4.2.2.1.3 Digital input panels . 12
4.2.2.2 Construction . 12
4.2.2.3 Controls and indicators . 12
4.2.2.3.1 General . 12
4.2.2.3.2 Illumination . 12
4.2.2.4 Labelling . 13
4.2.2.4.1 General . 13
4.2.2.4.2 Distress frequencies . 13
4.2.2.5 Protection against mishandling . 13
4.2.3 Operational requirements . 13
4.2.3.1 Frequency bands . 13
4.2.3.1.1 MF band . 13
4.2.3.1.2 HF bands. 13
4.2.3.2 Classes of emission . 14
4.2.4 Warming up period . 14
4.2.4.1 Time . 14
4.2.4.2 Heaters . 14
4.2.4.3 Heating circuits . 14
4.2.4.4 Delay . 14
4.2.5 Technical requirements . 14
4.2.5.1 Distress controls . 14
4.2.5.2 Telephony transmit control . 14
4.2.5.3 Misuse . 14
4.2.5.4 Control panel priority . 15
4.2.5.5 Manual gain control and Automatic Gain Control (AGC) . 15
4.2.5.6 Output indication . 15
4.2.5.7 DSC operation . 15
4.3 Environmental requirements . 15
4.3.1 Vibration test . 15
4.3.1.1 Definition . 15
4.3.1.2 Requirement . 15
4.3.1.3 Conformance . 15
4.3.2 Temperature tests . 15
4.3.2.1 Definition . 15
4.3.2.2 Dry heat . 15
4.3.2.2.1 Definition. 15
4.3.2.2.2 Requirement . 16
ETSI
4 Draft ETSI EN 300 373-3 V1.1.2 (2009-05)
4.3.2.2.3 Conformance . 16
4.3.2.3 Damp heat . 16
4.3.2.3.1 Definition. 16
4.3.2.3.2 Requirement . 16
4.3.2.3.3 Conformance . 16
4.3.2.4 Low temperature cycle . 16
4.3.2.4.1 Definition. 16
4.3.2.4.2 Requirement . 16
4.3.2.4.3 Conformance . 16
4.3.3 Corrosion test . 16
4.3.3.1 Definition . 16
4.3.3.2 Requirement . 17
4.3.3.3 Conformance . 17
4.3.4 Rain test . 17
4.3.4.1 Definition . 17
4.3.4.2 Requirement . 17
4.3.4.3 Conformance . 17
4.4 Conformance requirements . 17
4.4.1 Unwanted frequency modulation . 17
4.4.1.1 Definition . 17
4.4.1.2 Limit . 17
4.4.1.3 Conformance . 17
4.4.2 Sensitivity of the microphone and the 600 Ω line inputs for SSB telephony . 17
4.4.2.1 Definition . 17
4.4.2.2 Limits . 18
4.4.2.3 Conformance . 18
4.4.3 Automatic level control and/or limiter for SSB telephony . 18
4.4.3.1 Definition . 18
4.4.3.2 Limits . 18
4.4.3.3 Conformance . 18
4.4.4 Audio frequency response of SSB telephony . 18
4.4.4.1 Definition . 18
4.4.4.2 Limits . 19
4.4.4.3 Conformance . 19
4.4.5 Residual hum and noise power for telephony . 19
4.4.5.1 Definition . 19
4.4.5.2 Limits . 19
4.4.5.3 Conformance . 19
4.4.6 Residual frequency modulation on DSC . 20
4.4.6.1 Definition . 20
4.4.6.2 Limits . 20
4.4.6.3 Conformance . 20
4.4.7 Continuous operation on telephony . 20
4.4.7.1 Definition . 20
4.4.7.2 Limits . 20
4.4.7.3 Conformance . 20
4.4.8 Protection of transmitter . 20
4.4.8.1 Definition . 20
4.4.8.2 Limits . 20
4.4.8.3 Conformance . 20
4.4.9 Receiver frequency error . 20
4.4.9.1 Definition . 20
4.4.9.2 Limits . 21
4.4.9.3 Conformance . 21
4.4.10 Unwanted frequency modulation . 21
4.4.10.1 Definition . 21
4.4.10.2 Limits . 21
4.4.10.3 Conformance . 21
4.4.11 Pass band . 21
4.4.11.1 Definition . 21
4.4.11.2 Limits . 21
4.4.11.3 Conformance . 21
ETSI
5 Draft ETSI EN 300 373-3 V1.1.2 (2009-05)
4.4.12 Reciprocal mixing . 21
4.4.12.1 Definition . 21
4.4.12.2 Limits . 21
4.4.12.3 Conformance . 21
4.4.13 Harmonic content in output . 22
4.4.13.1 Definition . 22
4.4.13.2 Limits . 22
4.4.13.3 Conformance . 22
4.4.14 Audio frequency intermodulation . 22
4.4.14.1 Definition . 22
4.4.14.2 Limits . 22
4.4.14.3 Conformance . 22
4.4.15 Internally generated spurious signals . 22
4.4.15.1 Definition . 22
4.4.15.2 Limit . 22
4.4.15.3 Conformance . 22
4.4.16 AGC efficiency . 22
4.4.16.1 Definition . 22
4.4.16.2 Limits . 23
4.4.16.3 Conformance . 23
4.4.17 AGC time constants (attack and recovery time) . 23
4.4.17.1 Definitions . 23
4.4.17.2 Limits . 23
4.4.17.3 Conformance . 23
4.4.18 Protection of input circuits . 23
4.4.18.1 Definition . 23
4.4.18.2 Limits . 23
4.4.18.3 Conformance . 23
5 Testing for compliance with technical requirements . 24
5.1 Test conditions, power supply and ambient temperatures . 24
5.1.1 General . 24
5.1.2 Test power source . 24
5.1.3 Normal test conditions . 24
5.1.3.1 Normal temperature and humidity . 24
5.1.3.2 Normal test power source . 24
5.1.3.2.1 Mains voltage and frequency . 24
5.1.3.2.2 Secondary battery power sources . 24
5.1.3.2.3 Other power sources . 24
5.1.4 Extreme test conditions . 25
5.1.4.1 Extreme temperature tests . 25
5.1.4.2 Extreme values of test power source . 25
5.1.4.2.1 Mains voltage and mains frequency . 25
5.1.4.2.2 Secondary battery power sources . 25
5.1.4.2.3 Other power sources . 25
5.1.5 Artificial antennas . 25
5.1.5.1 Transmitters . 25
5.1.5.2 Receivers . 25
5.1.6 Standard test signals. 26
5.1.6.1 Test signals applied to the receiver input . 26
5.1.6.1.1 Sources . 26
5.1.6.1.2 Levels . 26
5.1.6.2 Normal test signals . 26
5.1.6.2.1 Class of emission J3E . 26
5.1.6.2.2 Class of emission F1B . 26
5.1.6.3 Choice of testing frequencies . 26
5.1.7 Warming up period . 26
5.1.7.1 Time . 26
5.1.7.2 Heaters . 26
5.2 Interpretation of the measurement results . 27
5.3 Essential radio test suites . 27
5.3.1 Environmental tests. 27
ETSI
6 Draft ETSI EN 300 373-3 V1.1.2 (2009-05)
5.3.1.1 Introduction . 27
5.3.1.2 Procedure . 27
5.3.1.3 Performance check . 28
5.3.1.4 Vibration test . 28
5.3.1.5 Temperature tests . 29
5.3.1.5.1 Dry heat . 29
5.3.1.5.2 Damp heat . 29
5.3.1.5.3 Low temperature cycle . 30
5.3.1.6 Corrosion test . 30
5.3.1.6.1 General . 30
5.3.1.6.2 Method of measurement . 30
5.3.1.7 Rain test . 31
5.3.1.7.1 General . 31
5.3.1.7.2 Method of measurement . 31
5.3.2 Conformance tests . 31
5.3.2.1 Unwanted frequency modulation . 31
5.3.2.2 Sensitivity of the microphone and the 600 Ω line inputs for SSB telephony . 32
5.3.2.3 Automatic level control and/or limiter for SSB telephony . 32
5.3.2.4 Audio frequency response of SSB telephony . 32
5.3.2.5 Residual hum and noise power for telephony . 33
5.3.2.6 Residual frequency modulation on DSC . 33
5.3.2.7 Continuous operation on telephony . 33
5.3.2.8 Protection of transmitter . 33
5.4 Other test specifications . 34
5.4.1 General . 34
5.4.2 Receiver frequency error . 34
5.4.3 Unwanted frequency modulation . 34
5.4.4 Pass band . 34
5.4.4.1 Class of emission J3E. 34
5.4.5 Reciprocal mixing . 35
5.4.6 Harmonic content in output . 35
5.4.7 Audio frequency intermodulation . 35
5.4.8 Internally generated spurious signals . 35
5.4.9 AGC efficiency . 36
5.4.9.1 Settings . 36
5.4.9.2 Increase in Signal-to-Noise Ratio (SNR) . 36
5.4.10 AGC time constants (attack and recovery time) . 36
5.4.11 Protection of input circuits . 36
Annex A (normative): HS Requirements and conformance Test specifications Table (HS-
RTT) . 37
Annex B (informative): The EN title in the official languages . 40
Annex C (informative): Bibliography . 41
History . 42

ETSI
7 Draft ETSI EN 300 373-3 V1.1.2 (2009-05)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://webapp.etsi.org/IPR/home.asp).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This Harmonized European Standard (Telecommunications series) has been produced by ETSI Technical Committee
Electromagnetic compatibility and Radio spectrum Matters (ERM), and is now submitted for the Public Enquiry phase
of the ETSI standards Two-step Approval Procedure.
The present document has been produced by ETSI in response to a mandate from the European Commission issued
under Council Directive 98/34/EC (as amended) [i.2] laying down a procedure for the provision of information in the
field of technical standards and regulations and following the Commission Decision 2004/71/EC of 4 September 2003
[i.5].
The present document is intended to become a Harmonized Standard, the reference of which will be published in the
Official Journal of the European Communities referencing the Directive 1999/5/EC [i.1] of the European Parliament
and of the Council of 9 March 1999 on radio equipment and telecommunications terminal equipment and the mutual
recognition of their conformity ("the R&TTE Directive").
Technical specifications relevant to Directive 1999/5/EC [i.1] are given in annex A.
The present document is part 3 of a multi-part deliverable covering Maritime mobile transmitters and receivers for use
in the MF and HF bands, as identified below:
Part 1: "Technical characteristics and methods of measurement";
Part 2: "Harmonized EN covering essential requirements under article 3.2 of the R&TTE Directive";
Part 3: "Harmonized EN covering essential requirements under article 3.3(e) of the R&TTE Directive;
Equipment with integrated or associated equipment for Class E Digital Selective Calling (DSC)".

Proposed national transposition dates
Date of latest announcement of this EN (doa): 3 months after ETSI publication
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 6 months after doa
Date of withdrawal of any conflicting National Standard (dow): 18 months after doa

ETSI
8 Draft ETSI EN 300 373-3 V1.1.2 (2009-05)
1 Scope
The present document applies to radio transmitters and receivers, for use on vessels operating in either the Medium
Frequency (MF) 1 606,5 kHz to 4 000 kHz bands only, or in the Medium and High Frequency (MF/HF) 1 606,5 kHz to
27,5 MHz bands allocated in the International Telecommunications Union (ITU) Radio Regulations [1], to the Maritime
Mobile Service (MMS).
The present document refers to equipment for one or more of the following:
- Single SideBand (SSB) modulation for telephony transmission and reception (J3E);
- Frequency Shift Keying (FSK) or SSB modulation of a keyed sub-carrier to transmit and receive Digital
Selective Calling (DSC) signals.
The present document refers to radio equipment, which is either fitted with an integrated DSC controller or fitted with a
dedicated interface for a DSC controller.
The present document is intended to cover the provisions of Directive 1999/5/EC [i.1] (R&TTE Directive) article 3.3 e),
which states that radio equipment within the scope of the present document shall be so constructed that: "it supports
certain features ensuring access to emergency services".
In addition to the present document, other ENs that specify technical requirements in respect of essential requirements
under other parts of article 3 of the R&TTE Directive [i.1] will apply to equipment within the scope of the present
document.
2 References
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• Non-specific reference may be made only to a complete document or a part thereof and only in the following
cases:
- if it is accepted that it will be possible to use all future changes of the referenced document for the
purposes of the referring document;
- for informative references.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
2.1 Normative references
The following referenced documents are indispensable for the application of the present document. For dated
references, only the edition cited applies. For non-specific references, the latest edition of the referenced document
(including any amendments) applies.
[1] ITU Radio Regulations (2008).
[2] ETSI EN 300 373-2 (V1.1.2): "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Maritime mobile transmitters and receivers for use in the MF and HF bands; Part 2: Harmonized
EN covering essential requirements under article 3.2 of the R&TTE Directive".
[3] ISO 3791 (1976): "Office machines and data processing equipment - Keyboard layouts for
numeric applications".
ETSI
9 Draft ETSI EN 300 373-3 V1.1.2 (2009-05)
[4] ETSI EN 300 338-4 (V1.1.1): "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Technical characteristics and methods of measurement for equipment for generation, transmission
and reception of Digital Selective Calling (DSC) in the maritime MF, MF/HF and/or VHF mobile
service; Part 4: Class E DSC".
2.2 Informative references
The following referenced documents are not essential to the use of the present document but they assist the user with
regard to a particular subject area. For non-specific references, the latest version of the referenced document (including
any amendments) applies.
[i.1] Directive 1999/5/EC of the Eu
...


Final draft ETSI EN 300 373-3 V1.1.2 (2009-10)
Harmonized European Standard (Telecommunications series)

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;
Equipment with integrated or associated equipment for
Class E Digital Selective Calling (DSC)

2 Final draft ETSI EN 300 373-3 V1.1.2 (2009-10)

Reference
REN/ERM-TG26-081-3
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, please send your comment to one of the following services:
http://portal.etsi.org/chaircor/ETSI_support.asp
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 2009.
All rights reserved.
TM TM TM TM
DECT , PLUGTESTS , UMTS , TIPHON , the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered
for the benefit of its Members.
TM
3GPP is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners.
LTE™ is a Trade Mark of ETSI currently being registered
for the benefit of its Members and of the 3GPP Organizational Partners.
GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association.
ETSI
3 Final draft ETSI EN 300 373-3 V1.1.2 (2009-10)
Contents
Intellectual Property Rights . 7
Foreword . 7
1 Scope . 8
2 References . 8
2.1 Normative references . 8
2.2 Informative references . 9
3 Definitions, symbols and abbreviations . 9
3.1 Definitions . 9
3.2 Symbols . 10
3.3 Abbreviations . 10
4 Technical requirements specifications . 11
4.1 Environmental profile . 11
4.2 General, operational and technical requirements . 11
4.2.1 General . 11
4.2.2 General requirements . 11
4.2.2.1 Composition . 11
4.2.2.1.1 Audio frequencies interfaces . 11
4.2.2.1.2 DSC Interface . 11
4.2.2.1.3 Digital input panels . 12
4.2.2.2 Construction . 12
4.2.2.3 Controls and indicators . 12
4.2.2.3.1 General . 12
4.2.2.3.2 Illumination . 12
4.2.2.4 Labelling . 13
4.2.2.4.1 General . 13
4.2.2.4.2 Distress frequencies . 13
4.2.2.5 Protection against mishandling . 13
4.2.3 Operational requirements . 13
4.2.3.1 Frequency bands . 13
4.2.3.1.1 MF band . 13
4.2.3.1.2 HF bands. 13
4.2.3.2 Classes of emission . 14
4.2.4 Warming up period . 14
4.2.4.1 Time . 14
4.2.4.2 Heaters . 14
4.2.4.3 Heating circuits . 14
4.2.4.4 Delay . 14
4.2.5 Technical requirements . 14
4.2.5.1 Distress controls . 14
4.2.5.2 Telephony transmit control . 14
4.2.5.3 Misuse . 14
4.2.5.4 Control panel priority . 15
4.2.5.5 Manual gain control and Automatic Gain Control (AGC) . 15
4.2.5.6 Output indication . 15
4.2.5.7 DSC operation . 15
4.3 Environmental requirements . 15
4.3.1 Vibration test . 15
4.3.1.1 Definition . 15
4.3.1.2 Requirement . 15
4.3.1.3 Conformance . 15
4.3.2 Temperature tests . 15
4.3.2.1 Definition . 15
4.3.2.2 Dry heat . 15
4.3.2.2.1 Definition. 15
4.3.2.2.2 Requirement . 16
ETSI
4 Final draft ETSI EN 300 373-3 V1.1.2 (2009-10)
4.3.2.2.3 Conformance . 16
4.3.2.3 Damp heat . 16
4.3.2.3.1 Definition. 16
4.3.2.3.2 Requirement . 16
4.3.2.3.3 Conformance . 16
4.3.2.4 Low temperature cycle . 16
4.3.2.4.1 Definition. 16
4.3.2.4.2 Requirement . 16
4.3.2.4.3 Conformance . 16
4.3.3 Corrosion test . 16
4.3.3.1 Definition . 16
4.3.3.2 Requirement . 17
4.3.3.3 Conformance . 17
4.3.4 Rain test . 17
4.3.4.1 Definition . 17
4.3.4.2 Requirement . 17
4.3.4.3 Conformance . 17
4.4 Conformance requirements . 17
4.4.1 Unwanted frequency modulation . 17
4.4.1.1 Definition . 17
4.4.1.2 Limit . 17
4.4.1.3 Conformance . 17
4.4.2 Sensitivity of the microphone and the 600 Ω line inputs for SSB telephony . 17
4.4.2.1 Definition . 17
4.4.2.2 Limits . 18
4.4.2.3 Conformance . 18
4.4.3 Automatic level control and/or limiter for SSB telephony . 18
4.4.3.1 Definition . 18
4.4.3.2 Limits . 18
4.4.3.3 Conformance . 18
4.4.4 Audio frequency response of SSB telephony . 18
4.4.4.1 Definition . 18
4.4.4.2 Limits . 19
4.4.4.3 Conformance . 19
4.4.5 Residual hum and noise power for telephony . 19
4.4.5.1 Definition . 19
4.4.5.2 Limits . 19
4.4.5.3 Conformance . 19
4.4.6 Residual frequency modulation on DSC . 20
4.4.6.1 Definition . 20
4.4.6.2 Limits . 20
4.4.6.3 Conformance . 20
4.4.7 Continuous operation on telephony . 20
4.4.7.1 Definition . 20
4.4.7.2 Limits . 20
4.4.7.3 Conformance . 20
4.4.8 Protection of transmitter . 20
4.4.8.1 Definition . 20
4.4.8.2 Limits . 20
4.4.8.3 Conformance . 20
4.4.9 Receiver frequency error . 20
4.4.9.1 Definition . 20
4.4.9.2 Limits . 21
4.4.9.3 Conformance . 21
4.4.10 Unwanted frequency modulation . 21
4.4.10.1 Definition . 21
4.4.10.2 Limits . 21
4.4.10.3 Conformance . 21
4.4.11 Pass band . 21
4.4.11.1 Definition . 21
4.4.11.2 Limits . 21
4.4.11.3 Conformance . 21
ETSI
5 Final draft ETSI EN 300 373-3 V1.1.2 (2009-10)
4.4.12 Reciprocal mixing . 21
4.4.12.1 Definition . 21
4.4.12.2 Limits . 21
4.4.12.3 Conformance . 21
4.4.13 Harmonic content in output . 22
4.4.13.1 Definition . 22
4.4.13.2 Limits . 22
4.4.13.3 Conformance . 22
4.4.14 Audio frequency intermodulation . 22
4.4.14.1 Definition . 22
4.4.14.2 Limits . 22
4.4.14.3 Conformance . 22
4.4.15 Internally generated spurious signals . 22
4.4.15.1 Definition . 22
4.4.15.2 Limit . 22
4.4.15.3 Conformance . 22
4.4.16 AGC efficiency . 22
4.4.16.1 Definition . 22
4.4.16.2 Limits . 23
4.4.16.3 Conformance . 23
4.4.17 AGC time constants (attack and recovery time) . 23
4.4.17.1 Definitions . 23
4.4.17.2 Limits . 23
4.4.17.3 Conformance . 23
4.4.18 Protection of input circuits . 23
4.4.18.1 Definition . 23
4.4.18.2 Limits . 23
4.4.18.3 Conformance . 23
5 Testing for compliance with technical requirements . 24
5.1 Test conditions, power supply and ambient temperatures . 24
5.1.1 General . 24
5.1.2 Test power source . 24
5.1.3 Normal test conditions . 24
5.1.3.1 Normal temperature and humidity . 24
5.1.3.2 Normal test power source . 24
5.1.3.2.1 Mains voltage and frequency . 24
5.1.3.2.2 Secondary battery power sources . 24
5.1.3.2.3 Other power sources . 24
5.1.4 Extreme test conditions . 25
5.1.4.1 Extreme temperature tests . 25
5.1.4.2 Extreme values of test power source . 25
5.1.4.2.1 Mains voltage and mains frequency . 25
5.1.4.2.2 Secondary battery power sources . 25
5.1.4.2.3 Other power sources . 25
5.1.5 Artificial antennas . 25
5.1.5.1 Transmitters . 25
5.1.5.2 Receivers . 25
5.1.6 Standard test signals. 26
5.1.6.1 Test signals applied to the receiver input . 26
5.1.6.1.1 Sources . 26
5.1.6.1.2 Levels . 26
5.1.6.2 Normal test signals . 26
5.1.6.2.1 Class of emission J3E . 26
5.1.6.2.2 Class of emission F1B . 26
5.1.6.3 Choice of testing frequencies . 26
5.1.7 Warming up period . 26
5.1.7.1 Time . 26
5.1.7.2 Heaters . 26
5.2 Interpretation of the measurement results . 27
5.3 Essential radio test suites . 27
5.3.1 Environmental tests. 27
ETSI
6 Final draft ETSI EN 300 373-3 V1.1.2 (2009-10)
5.3.1.1 Introduction . 27
5.3.1.2 Procedure . 27
5.3.1.3 Performance check . 28
5.3.1.4 Vibration test . 28
5.3.1.5 Temperature tests . 29
5.3.1.5.1 Dry heat . 29
5.3.1.5.2 Damp heat . 29
5.3.1.5.3 Low temperature cycle . 30
5.3.1.6 Corrosion test . 30
5.3.1.6.1 General . 30
5.3.1.6.2 Method of measurement . 30
5.3.1.7 Rain test . 31
5.3.1.7.1 General . 31
5.3.1.7.2 Method of measurement . 31
5.3.2 Conformance tests . 31
5.3.2.1 Unwanted frequency modulation . 31
5.3.2.2 Sensitivity of the microphone and the 600 Ω line inputs for SSB telephony . 32
5.3.2.3 Automatic level control and/or limiter for SSB telephony . 32
5.3.2.4 Audio frequency response of SSB telephony . 32
5.3.2.5 Residual hum and noise power for telephony . 33
5.3.2.6 Residual frequency modulation on DSC . 33
5.3.2.7 Continuous operation on telephony . 33
5.3.2.8 Protection of transmitter . 33
5.4 Other test specifications . 34
5.4.1 General . 34
5.4.2 Receiver frequency error . 34
5.4.3 Unwanted frequency modulation . 34
5.4.4 Pass band . 34
5.4.4.1 Class of emission J3E. 34
5.4.5 Reciprocal mixing . 35
5.4.6 Harmonic content in output . 35
5.4.7 Audio frequency intermodulation . 35
5.4.8 Internally generated spurious signals . 35
5.4.9 AGC efficiency . 36
5.4.9.1 Settings . 36
5.4.9.2 Increase in Signal-to-Noise Ratio (SNR) . 36
5.4.10 AGC time constants (attack and recovery time) . 36
5.4.11 Protection of input circuits . 36
Annex A (normative): HS Requirements and conformance Test specifications Table
(HS-RTT) . 37
Annex B (informative): The EN title in the official languages . 40
Annex C (informative): Bibliography . 41
History . 42

ETSI
7 Final draft ETSI EN 300 373-3 V1.1.2 (2009-10)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://webapp.etsi.org/IPR/home.asp).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This Harmonized European Standard (Telecommunications series) has been produced by ETSI Technical Committee
Electromagnetic compatibility and Radio spectrum Matters (ERM), and is now submitted for the Vote phase of the
ETSI standards Two-step Approval Procedure.
The present document has been produced by ETSI in response to a mandate from the European Commission issued
under Council Directive 98/34/EC (as amended) [i.2] laying down a procedure for the provision of information in the
field of technical standards and regulations and following the Commission Decision 2004/71/EC [i.5] of
4 September 2003.
The present document is intended to become a Harmonized Standard, the reference of which will be published in the
Official Journal of the European Communities referencing the Directive 1999/5/EC [i.1] of the European Parliament
and of the Council of 9 March 1999 on radio equipment and telecommunications terminal equipment and the mutual
recognition of their conformity ("the R&TTE Directive").
Technical specifications relevant to Directive 1999/5/EC [i.1] are given in annex A.
The present document is part 3 of a multi-part deliverable covering Maritime mobile transmitters and receivers for use
in the MF and HF bands, as identified below:
Part 1: "Technical characteristics and methods of measurement";
Part 2: "Harmonized EN covering essential requirements under article 3.2 of the R&TTE Directive";
Part 3: "Harmonized EN covering essential requirements under article 3.3(e) of the R&TTE Directive;
Equipment with integrated or associated equipment for Class E Digital Selective Calling (DSC)".

Proposed national transposition dates
Date of latest announcement of this EN (doa): 3 months after ETSI publication
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 6 months after doa
Date of withdrawal of any conflicting National Standard (dow): 18 months after doa

ETSI
8 Final draft ETSI EN 300 373-3 V1.1.2 (2009-10)
1 Scope
The present document applies to radio transmitters and receivers, for use on vessels operating in either the Medium
Frequency (MF) 1 606,5 kHz to 4 000 kHz bands only, or in the Medium and High Frequency (MF/HF) 1 606,5 kHz to
27,5 MHz bands allocated in the International Telecommunications Union (ITU) Radio Regulations [1], to the Maritime
Mobile Service (MMS).
The present document refers to equipment for one or more of the following:
- Single SideBand (SSB) modulation for telephony transmission and reception (J3E);
- Frequency Shift Keying (FSK) or SSB modulation of a keyed sub-carrier to transmit and receive Digital
Selective Calling (DSC) signals.
The present document refers to radio equipment, which is either fitted with an integrated DSC controller or fitted with a
dedicated interface for a DSC controller.
The present document is intended to cover the provisions of Directive 1999/5/EC [i.1] (R&TTE Directive) article 3.3 e),
which states that radio equipment within the scope of the present document shall be so constructed that: "it supports
certain features ensuring access to emergency services".
In addition to the present document, other ENs that specify technical requirements in respect of essential requirements
under other parts of article 3 of the R&TTE Directive [i.1] will apply to equipment within the scope of the present
document.
2 References
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• Non-specific reference may be made only to a complete document or a part thereof and only in the following
cases:
- if it is accepted that it will be possible to use all future changes of the referenced document for the
purposes of the referring document;
- for informative references.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
2.1 Normative references
The following referenced documents are indispensable for the application of the present document. For dated
references, only the edition cited applies. For non-specific references, the latest edition of the referenced document
(including any amendments) applies.
[1] ITU Radio Regulations (2008).
[2] ETSI EN 300 373-2 (V1.1.2): "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Maritime mobile transmitters and receivers for use in the MF and HF bands; Part 2: Harmonized
EN covering essential requirements under article 3.2 of the R&TTE Directive".
[3] ISO 3791 (1976): "Office machines and data processing equipment - Keyboard layouts for
numeric applications".
ETSI
9 Final draft ETSI EN 300 373-3 V1.1.2 (2009-10)
[4] ETSI EN 300 338-4 (V1.1.1): "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Technical characteristics and methods of measurement for equipment for generation, transmission
and reception of Digital Selective Calling (DSC) in the maritime MF, MF/HF and/or VHF mobile
service; Part 4: Class E DSC".
2.2 Informative references
The following referenced documents are not essential to the use of the present document but they assist the user with
regard to a particular subject area. For non-specific references, the latest version of the referenced document (including
any amendments) app
...


Harmonized European Standard (Telecommunications series)

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;
Equipment with integrated or associated equipment for
Class E Digital Selective Calling (DSC)

2 ETSI EN 300 373-3 V1.2.1 (2009-12)

Reference
REN/ERM-TG26-081-3
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, please send your comment to one of the following services:
http://portal.etsi.org/chaircor/ETSI_support.asp
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 2009.
All rights reserved.
TM TM TM TM
DECT , PLUGTESTS , UMTS , TIPHON , the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered
for the benefit of its Members.
TM
3GPP is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners.
LTE™ is a Trade Mark of ETSI currently being registered
for the benefit of its Members and of the 3GPP Organizational Partners.
GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association.
ETSI
3 ETSI EN 300 373-3 V1.2.1 (2009-12)
Contents
Intellectual Property Rights . 7
Foreword . 7
1 Scope . 8
2 References . 8
2.1 Normative references . 8
2.2 Informative references . 9
3 Definitions, symbols and abbreviations . 9
3.1 Definitions . 9
3.2 Symbols . 10
3.3 Abbreviations . 10
4 Technical requirements specifications . 11
4.1 Environmental profile . 11
4.2 General, operational and technical requirements . 11
4.2.1 General . 11
4.2.2 General requirements . 11
4.2.2.1 Composition . 11
4.2.2.1.1 Audio frequencies interfaces . 11
4.2.2.1.2 DSC Interface . 11
4.2.2.1.3 Digital input panels . 12
4.2.2.2 Construction . 12
4.2.2.3 Controls and indicators . 12
4.2.2.3.1 General . 12
4.2.2.3.2 Illumination . 12
4.2.2.4 Labelling . 13
4.2.2.4.1 General . 13
4.2.2.4.2 Distress frequencies . 13
4.2.2.5 Protection against mishandling . 13
4.2.3 Operational requirements . 13
4.2.3.1 Frequency bands . 13
4.2.3.1.1 MF band . 13
4.2.3.1.2 HF bands. 13
4.2.3.2 Classes of emission . 14
4.2.4 Warming up period . 14
4.2.4.1 Time . 14
4.2.4.2 Heaters . 14
4.2.4.3 Heating circuits . 14
4.2.4.4 Delay . 14
4.2.5 Technical requirements . 14
4.2.5.1 Distress controls . 14
4.2.5.2 Telephony transmit control . 14
4.2.5.3 Misuse . 14
4.2.5.4 Control panel priority . 15
4.2.5.5 Manual gain control and Automatic Gain Control (AGC) . 15
4.2.5.6 Output indication . 15
4.2.5.7 DSC operation . 15
4.3 Environmental requirements . 15
4.3.1 Vibration test . 15
4.3.1.1 Definition . 15
4.3.1.2 Requirement . 15
4.3.1.3 Conformance . 15
4.3.2 Temperature tests . 15
4.3.2.1 Definition . 15
4.3.2.2 Dry heat . 15
4.3.2.2.1 Definition. 15
4.3.2.2.2 Requirement . 16
ETSI
4 ETSI EN 300 373-3 V1.2.1 (2009-12)
4.3.2.2.3 Conformance . 16
4.3.2.3 Damp heat . 16
4.3.2.3.1 Definition. 16
4.3.2.3.2 Requirement . 16
4.3.2.3.3 Conformance . 16
4.3.2.4 Low temperature cycle . 16
4.3.2.4.1 Definition. 16
4.3.2.4.2 Requirement . 16
4.3.2.4.3 Conformance . 16
4.3.3 Corrosion test . 16
4.3.3.1 Definition . 16
4.3.3.2 Requirement . 17
4.3.3.3 Conformance . 17
4.3.4 Rain test . 17
4.3.4.1 Definition . 17
4.3.4.2 Requirement . 17
4.3.4.3 Conformance . 17
4.4 Conformance requirements . 17
4.4.1 Unwanted frequency modulation . 17
4.4.1.1 Definition . 17
4.4.1.2 Limit . 17
4.4.1.3 Conformance . 17
4.4.2 Sensitivity of the microphone and the 600 Ω line inputs for SSB telephony . 17
4.4.2.1 Definition . 17
4.4.2.2 Limits . 18
4.4.2.3 Conformance . 18
4.4.3 Automatic level control and/or limiter for SSB telephony . 18
4.4.3.1 Definition . 18
4.4.3.2 Limits . 18
4.4.3.3 Conformance . 18
4.4.4 Audio frequency response of SSB telephony . 18
4.4.4.1 Definition . 18
4.4.4.2 Limits . 19
4.4.4.3 Conformance . 19
4.4.5 Residual hum and noise power for telephony . 19
4.4.5.1 Definition . 19
4.4.5.2 Limits . 19
4.4.5.3 Conformance . 19
4.4.6 Residual frequency modulation on DSC . 20
4.4.6.1 Definition . 20
4.4.6.2 Limits . 20
4.4.6.3 Conformance . 20
4.4.7 Continuous operation on telephony . 20
4.4.7.1 Definition . 20
4.4.7.2 Limits . 20
4.4.7.3 Conformance . 20
4.4.8 Protection of transmitter . 20
4.4.8.1 Definition . 20
4.4.8.2 Limits . 20
4.4.8.3 Conformance . 20
4.4.9 Receiver frequency error . 20
4.4.9.1 Definition . 20
4.4.9.2 Limits . 21
4.4.9.3 Conformance . 21
4.4.10 Unwanted frequency modulation . 21
4.4.10.1 Definition . 21
4.4.10.2 Limits . 21
4.4.10.3 Conformance . 21
4.4.11 Pass band . 21
4.4.11.1 Definition . 21
4.4.11.2 Limits . 21
4.4.11.3 Conformance . 21
ETSI
5 ETSI EN 300 373-3 V1.2.1 (2009-12)
4.4.12 Reciprocal mixing . 21
4.4.12.1 Definition . 21
4.4.12.2 Limits . 21
4.4.12.3 Conformance . 21
4.4.13 Harmonic content in output . 22
4.4.13.1 Definition . 22
4.4.13.2 Limits . 22
4.4.13.3 Conformance . 22
4.4.14 Audio frequency intermodulation . 22
4.4.14.1 Definition . 22
4.4.14.2 Limits . 22
4.4.14.3 Conformance . 22
4.4.15 Internally generated spurious signals . 22
4.4.15.1 Definition . 22
4.4.15.2 Limit . 22
4.4.15.3 Conformance . 22
4.4.16 AGC efficiency . 22
4.4.16.1 Definition . 22
4.4.16.2 Limits . 23
4.4.16.3 Conformance . 23
4.4.17 AGC time constants (attack and recovery time) . 23
4.4.17.1 Definitions . 23
4.4.17.2 Limits . 23
4.4.17.3 Conformance . 23
4.4.18 Protection of input circuits . 23
4.4.18.1 Definition . 23
4.4.18.2 Limits . 23
4.4.18.3 Conformance . 23
5 Testing for compliance with technical requirements . 24
5.1 Test conditions, power supply and ambient temperatures . 24
5.1.1 General . 24
5.1.2 Test power source . 24
5.1.3 Normal test conditions . 24
5.1.3.1 Normal temperature and humidity . 24
5.1.3.2 Normal test power source . 24
5.1.3.2.1 Mains voltage and frequency . 24
5.1.3.2.2 Secondary battery power sources . 24
5.1.3.2.3 Other power sources . 24
5.1.4 Extreme test conditions . 25
5.1.4.1 Extreme temperature tests . 25
5.1.4.2 Extreme values of test power source . 25
5.1.4.2.1 Mains voltage and mains frequency . 25
5.1.4.2.2 Secondary battery power sources . 25
5.1.4.2.3 Other power sources . 25
5.1.5 Artificial antennas . 25
5.1.5.1 Transmitters . 25
5.1.5.2 Receivers . 25
5.1.6 Standard test signals. 26
5.1.6.1 Test signals applied to the receiver input . 26
5.1.6.1.1 Sources . 26
5.1.6.1.2 Levels . 26
5.1.6.2 Normal test signals . 26
5.1.6.2.1 Class of emission J3E . 26
5.1.6.2.2 Class of emission F1B . 26
5.1.6.3 Choice of testing frequencies . 26
5.1.7 Warming up period . 26
5.1.7.1 Time . 26
5.1.7.2 Heaters . 26
5.2 Interpretation of the measurement results . 27
5.3 Essential radio test suites . 27
5.3.1 Environmental tests. 27
ETSI
6 ETSI EN 300 373-3 V1.2.1 (2009-12)
5.3.1.1 Introduction . 27
5.3.1.2 Procedure . 27
5.3.1.3 Performance check . 28
5.3.1.4 Vibration test . 28
5.3.1.5 Temperature tests . 29
5.3.1.5.1 Dry heat . 29
5.3.1.5.2 Damp heat . 29
5.3.1.5.3 Low temperature cycle . 30
5.3.1.6 Corrosion test . 30
5.3.1.6.1 General . 30
5.3.1.6.2 Method of measurement . 30
5.3.1.7 Rain test . 31
5.3.1.7.1 General . 31
5.3.1.7.2 Method of measurement . 31
5.3.2 Conformance tests . 31
5.3.2.1 Unwanted frequency modulation . 31
5.3.2.2 Sensitivity of the microphone and the 600 Ω line inputs for SSB telephony . 32
5.3.2.3 Automatic level control and/or limiter for SSB telephony . 32
5.3.2.4 Audio frequency response of SSB telephony . 32
5.3.2.5 Residual hum and noise power for telephony . 33
5.3.2.6 Residual frequency modulation on DSC . 33
5.3.2.7 Continuous operation on telephony . 33
5.3.2.8 Protection of transmitter . 33
5.4 Other test specifications . 34
5.4.1 General . 34
5.4.2 Receiver frequency error . 34
5.4.3 Unwanted frequency modulation . 34
5.4.4 Pass band . 34
5.4.4.1 Class of emission J3E. 34
5.4.5 Reciprocal mixing . 35
5.4.6 Harmonic content in output . 35
5.4.7 Audio frequency intermodulation . 35
5.4.8 Internally generated spurious signals . 35
5.4.9 AGC efficiency . 36
5.4.9.1 Settings . 36
5.4.9.2 Increase in Signal-to-Noise Ratio (SNR) . 36
5.4.10 AGC time constants (attack and recovery time) . 36
5.4.11 Protection of input circuits . 36
Annex A (normative): HS Requirements and conformance Test specifications Table
(HS-RTT) . 37
Annex B (informative): The EN title in the official languages . 40
Annex C (informative): Bibliography . 41
History . 42

ETSI
7 ETSI EN 300 373-3 V1.2.1 (2009-12)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://webapp.etsi.org/IPR/home.asp).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This Harmonized European Standard (Telecommunications series) has been produced by ETSI Technical Committee
Electromagnetic compatibility and Radio spectrum Matters (ERM).
The present document has been produced by ETSI in response to a mandate from the European Commission issued
under Council Directive 98/34/EC (as amended) [i.2] laying down a procedure for the provision of information in the
field of technical standards and regulations and following the Commission Decision 2004/71/EC [i.5] of
4 September 2003.
The present document is intended to become a Harmonized Standard, the reference of which will be published in the
Official Journal of the European Communities referencing the Directive 1999/5/EC [i.1] of the European Parliament
and of the Council of 9 March 1999 on radio equipment and telecommunications terminal equipment and the mutual
recognition of their conformity ("the R&TTE Directive").
Technical specifications relevant to Directive 1999/5/EC [i.1] are given in annex A.
The present document is part 3 of a multi-part deliverable covering Maritime mobile transmitters and receivers for use
in the MF and HF bands, as identified below:
Part 1: "Technical characteristics and methods of measurement";
Part 2: "Harmonized EN covering essential requirements under article 3.2 of the R&TTE Directive";
Part 3: "Harmonized EN covering essential requirements under article 3.3(e) of the R&TTE Directive;
Equipment with integrated or associated equipment for Class E Digital Selective Calling (DSC)".

National transposition dates
Date of adoption of this EN: 9 December 2009
Date of latest announcement of this EN (doa): 31 March 2010
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 September 2010
Date of withdrawal of any conflicting National Standard (dow): 30 September 2011

ETSI
8 ETSI EN 300 373-3 V1.2.1 (2009-12)
1 Scope
The present document applies to radio transmitters and receivers, for use on vessels operating in either the Medium
Frequency (MF) 1 606,5 kHz to 4 000 kHz bands only, or in the Medium and High Frequency (MF/HF) 1 606,5 kHz to
27,5 MHz bands allocated in the International Telecommunications Union (ITU) Radio Regulations [1], to the Maritime
Mobile Service (MMS).
The present document refers to equipment for one or more of the following:
- Single SideBand (SSB) modulation for telephony transmission and reception (J3E);
- Frequency Shift Keying (FSK) or SSB modulation of a keyed sub-carrier to transmit and receive Digital
Selective Calling (DSC) signals.
The present document refers to radio equipment, which is either fitted with an integrated DSC controller or fitted with a
dedicated interface for a DSC controller.
The present document is intended to cover the provisions of Directive 1999/5/EC [i.1] (R&TTE Directive) article 3.3 e),
which states that radio equipment within the scope of the present document shall be so constructed that: "it supports
certain features ensuring access to emergency services".
In addition to the present document, other ENs that specify technical requirements in respect of essential requirements
under other parts of article 3 of the R&TTE Directive [i.1] will apply to equipment within the scope of the present
document.
2 References
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• Non-specific reference may be made only to a complete document or a part thereof and only in the following
cases:
- if it is accepted that it will be possible to use all future changes of the referenced document for the
purposes of the referring document;
- for informative references.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
2.1 Normative references
The following referenced documents are indispensable for the application of the present document. For dated
references, only the edition cited applies. For non-specific references, the latest edition of the referenced document
(including any amendments) applies.
[1] ITU Radio Regulations (2008).
[2] ETSI EN 300 373-2 (V1.1.2): "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Maritime mobile transmitters and receivers for use in the MF and HF bands; Part 2: Harmonized
EN covering essential requirements under article 3.2 of the R&TTE Directive".
[3] ISO 3791 (1976): "Office machines and data processing equipment - Keyboard layouts for
numeric applications".
ETSI
9 ETSI EN 300 373-3 V1.2.1 (2009-12)
[4] ETSI EN 300 338-4 (V1.1.1): "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Technical characteristics and methods of measurement for equipment for generation, transmission
and reception of Digital Selective Calling (DSC) in the maritime MF, MF/HF and/or VHF mobile
service; Part 4: Class E DSC".
2.2 Informative references
The following referenced documents are not essential to the use of the present document but they assist the user with
regard to a particular subject area. For non-specific references, the latest version of the referenced document (including
any amendments) applies.
[i.1] Directive 1999/5/EC of the European Parliament and of the Council of 9 March 1999 on radio
equipment and telecommunications terminal equipment and the mutual recognition
...


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.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 - Equipment with integrated or associated equipment for Class E Digital Selective Calling (DSC)47.020.70Navigacijska 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 1.2.1SIST EN 300 373-3 V1.2.1:2010en01-februar-2010SIST EN 300 373-3 V1.2.1:2010SLOVENSKI
STANDARD
ETSI ETSI EN 300 373-3 V1.2.1 (2009-12) 2
Reference REN/ERM-TG26-081-3 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, please send your comment to one of the following services: http://portal.etsi.org/chaircor/ETSI_support.asp 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 2009. All rights reserved.
DECTTM, PLUGTESTSTM, UMTSTM, TIPHONTM, the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered 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. LTE™ is a Trade Mark of ETSI currently being registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association. SIST EN 300 373-3 V1.2.1:2010

ETSI ETSI EN 300 373-3 V1.2.1 (2009-12) 3 Contents Intellectual Property Rights . 7 Foreword . 7 1 Scope . 8 2 References . 8 2.1 Normative references . 8 2.2 Informative references . 9 3 Definitions, symbols and abbreviations . 9 3.1 Definitions . 9 3.2 Symbols . 10 3.3 Abbreviations . 10 4 Technical requirements specifications . 11 4.1 Environmental profile . 11 4.2 General, operational and technical requirements . 11 4.2.1 General . 11 4.2.2 General requirements . 11 4.2.2.1 Composition . 11 4.2.2.1.1 Audio frequencies interfaces . 11 4.2.2.1.2 DSC Interface . 11 4.2.2.1.3 Digital input panels . 12 4.2.2.2 Construction . 12 4.2.2.3 Controls and indicators . 12 4.2.2.3.1 General . 12 4.2.2.3.2 Illumination . 12 4.2.2.4 Labelling . 13 4.2.2.4.1 General . 13 4.2.2.4.2 Distress frequencies . 13 4.2.2.5 Protection against mishandling . 13 4.2.3 Operational requirements . 13 4.2.3.1 Frequency bands . 13 4.2.3.1.1 MF band . 13 4.2.3.1.2 HF bands. 13 4.2.3.2 Classes of emission . 14 4.2.4 Warming up period . 14 4.2.4.1 Time . 14 4.2.4.2 Heaters . 14 4.2.4.3 Heating circuits . 14 4.2.4.4 Delay . 14 4.2.5 Technical requirements . 14 4.2.5.1 Distress controls . 14 4.2.5.2 Telephony transmit control . 14 4.2.5.3 Misuse . 14 4.2.5.4 Control panel priority . 15 4.2.5.5 Manual gain control and Automatic Gain Control (AGC) . 15 4.2.5.6 Output indication . 15 4.2.5.7 DSC operation . 15 4.3 Environmental requirements . 15 4.3.1 Vibration test . 15 4.3.1.1 Definition . 15 4.3.1.2 Requirement . 15 4.3.1.3 Conformance . 15 4.3.2 Temperature tests . 15 4.3.2.1 Definition . 15 4.3.2.2 Dry heat . 15 4.3.2.2.1 Definition. 15 4.3.2.2.2 Requirement . 16 SIST EN 300 373-3 V1.2.1:2010

ETSI ETSI EN 300 373-3 V1.2.1 (2009-12) 4 4.3.2.2.3 Conformance . 16 4.3.2.3 Damp heat . 16 4.3.2.3.1 Definition. 16 4.3.2.3.2 Requirement . 16 4.3.2.3.3 Conformance . 16 4.3.2.4 Low temperature cycle . 16 4.3.2.4.1 Definition. 16 4.3.2.4.2 Requirement . 16 4.3.2.4.3 Conformance . 16 4.3.3 Corrosion test . 16 4.3.3.1 Definition . 16 4.3.3.2 Requirement . 17 4.3.3.3 Conformance . 17 4.3.4 Rain test . 17 4.3.4.1 Definition . 17 4.3.4.2 Requirement . 17 4.3.4.3 Conformance . 17 4.4 Conformance requirements . 17 4.4.1 Unwanted frequency modulation . 17 4.4.1.1 Definition . 17 4.4.1.2 Limit . 17 4.4.1.3 Conformance . 17 4.4.2 Sensitivity of the microphone and the 600 Ω line inputs for SSB telephony . 17 4.4.2.1 Definition . 17 4.4.2.2 Limits . 18 4.4.2.3 Conformance . 18 4.4.3 Automatic level control and/or limiter for SSB telephony . 18 4.4.3.1 Definition . 18 4.4.3.2 Limits . 18 4.4.3.3 Conformance . 18 4.4.4 Audio frequency response of SSB telephony . 18 4.4.4.1 Definition . 18 4.4.4.2 Limits . 19 4.4.4.3 Conformance . 19 4.4.5 Residual hum and noise power for telephony . 19 4.4.5.1 Definition . 19 4.4.5.2 Limits . 19 4.4.5.3 Conformance . 19 4.4.6 Residual frequency modulation on DSC . 20 4.4.6.1 Definition . 20 4.4.6.2 Limits . 20 4.4.6.3 Conformance . 20 4.4.7 Continuous operation on telephony . 20 4.4.7.1 Definition . 20 4.4.7.2 Limits . 20 4.4.7.3 Conformance . 20 4.4.8 Protection of transmitter . 20 4.4.8.1 Definition . 20 4.4.8.2 Limits . 20 4.4.8.3 Conformance . 20 4.4.9 Receiver frequency error . 20 4.4.9.1 Definition . 20 4.4.9.2 Limits . 21 4.4.9.3 Conformance . 21 4.4.10 Unwanted frequency modulation . 21 4.4.10.1 Definition . 21 4.4.10.2 Limits . 21 4.4.10.3 Conformance . 21 4.4.11 Pass band . 21 4.4.11.1 Definition . 21 4.4.11.2 Limits . 21 4.4.11.3 Conformance . 21 SIST EN 300 373-3 V1.2.1:2010

ETSI ETSI EN 300 373-3 V1.2.1 (2009-12) 5 4.4.12 Reciprocal mixing . 21 4.4.12.1 Definition . 21 4.4.12.2 Limits . 21 4.4.12.3 Conformance . 21 4.4.13 Harmonic content in output . 22 4.4.13.1 Definition . 22 4.4.13.2 Limits . 22 4.4.13.3 Conformance . 22 4.4.14 Audio frequency intermodulation . 22 4.4.14.1 Definition . 22 4.4.14.2 Limits . 22 4.4.14.3 Conformance . 22 4.4.15 Internally generated spurious signals . 22 4.4.15.1 Definition . 22 4.4.15.2 Limit . 22 4.4.15.3 Conformance . 22 4.4.16 AGC efficiency . 22 4.4.16.1 Definition . 22 4.4.16.2 Limits . 23 4.4.16.3 Conformance . 23 4.4.17 AGC time constants (attack and recovery time) . 23 4.4.17.1 Definitions . 23 4.4.17.2 Limits . 23 4.4.17.3 Conformance . 23 4.4.18 Protection of input circuits . 23 4.4.18.1 Definition . 23 4.4.18.2 Limits . 23 4.4.18.3 Conformance . 23 5 Testing for compliance with technical requirements . 24 5.1 Test conditions, power supply and ambient temperatures . 24 5.1.1 General . 24 5.1.2 Test power source . 24 5.1.3 Normal test conditions . 24 5.1.3.1 Normal temperature and humidity . 24 5.1.3.2 Normal test power source . 24 5.1.3.2.1 Mains voltage and frequency . 24 5.1.3.2.2 Secondary battery power sources . 24 5.1.3.2.3 Other power sources . 24 5.1.4 Extreme test conditions . 25 5.1.4.1 Extreme temperature tests . 25 5.1.4.2 Extreme values of test power source . 25 5.1.4.2.1 Mains voltage and mains frequency . 25 5.1.4.2.2 Secondary battery power sources . 25 5.1.4.2.3 Other power sources . 25 5.1.5 Artificial antennas . 25 5.1.5.1 Transmitters . 25 5.1.5.2 Receivers . 25 5.1.6 Standard test signals. 26 5.1.6.1 Test signals applied to the receiver input . 26 5.1.6.1.1 Sources . 26 5.1.6.1.2 Levels . 26 5.1.6.2 Normal test signals . 26 5.1.6.2.1 Class of emission J3E . 26 5.1.6.2.2 Class of emission F1B . 26 5.1.6.3 Choice of testing frequencies . 26 5.1.7 Warming up period . 26 5.1.7.1 Time . 26 5.1.7.2 Heaters . 26 5.2 Interpretation of the measurement results . 27 5.3 Essential radio test suites . 27 5.3.1 Environmental tests. 27 SIST EN 300 373-3 V1.2.1:2010

ETSI ETSI EN 300 373-3 V1.2.1 (2009-12) 6 5.3.1.1 Introduction . 27 5.3.1.2 Procedure . 27 5.3.1.3 Performance check . 28 5.3.1.4 Vibration test . 28 5.3.1.5 Temperature tests . 29 5.3.1.5.1 Dry heat . 29 5.3.1.5.2 Damp heat . 29 5.3.1.5.3 Low temperature cycle . 30 5.3.1.6 Corrosion test . 30 5.3.1.6.1 General . 30 5.3.1.6.2 Method of measurement . 30 5.3.1.7 Rain test . 31 5.3.1.7.1 General . 31 5.3.1.7.2 Method of measurement . 31 5.3.2 Conformance tests . 31 5.3.2.1 Unwanted frequency modulation . 31 5.3.2.2 Sensitivity of the microphone and the 600 Ω line inputs for SSB telephony . 32 5.3.2.3 Automatic level control and/or limiter for SSB telephony . 32 5.3.2.4 Audio frequency response of SSB telephony . 32 5.3.2.5 Residual hum and noise power for telephony . 33 5.3.2.6 Residual frequency modulation on DSC . 33 5.3.2.7 Continuous operation on telephony . 33 5.3.2.8 Protection of transmitter . 33 5.4 Other test specifications . 34 5.4.1 General . 34 5.4.2 Receiver frequency error . 34 5.4.3 Unwanted frequency modulation . 34 5.4.4 Pass band . 34 5.4.4.1 Class of emission J3E. 34 5.4.5 Reciprocal mixing . 35 5.4.6 Harmonic content in output . 35 5.4.7 Audio frequency intermodulation . 35 5.4.8 Internally generated spurious signals . 35 5.4.9 AGC efficiency . 36 5.4.9.1 Settings . 36 5.4.9.2 Increase in Signal-to-Noise Ratio (SNR) . 36 5.4.10 AGC time constants (attack and recovery time) . 36 5.4.11 Protection of input circuits . 36 Annex A (normative): HS Requirements and conformance Test specifications Table (HS-RTT) . 37 Annex B (informative): The EN title in the official languages . 40 Annex C (informative): Bibliography . 41 History . 42
ETSI ETSI EN 300 373-3 V1.2.1 (2009-12) 7 Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http://webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This Harmonized European Standard (Telecommunications series) has been produced by ETSI Technical Committee Electromagnetic compatibility and Radio spectrum Matters (ERM). The present document has been produced by ETSI in response to a mandate from the European Commission issued under Council Directive 98/34/EC (as amended) [i.2] laying down a procedure for the provision of information in the field of technical standards and regulations and following the Commission Decision 2004/71/EC [i.5] of 4 September 2003. The present document is intended to become a Harmonized Standard, the reference of which will be published in the Official Journal of the European Communities referencing the Directive 1999/5/EC [i.1] of the European Parliament and of the Council of 9 March 1999 on radio equipment and telecommunications terminal equipment and the mutual recognition of their conformity ("the R&TTE Directive"). Technical specifications relevant to Directive 1999/5/EC [i.1] are given in annex A. The present document is part 3 of a multi-part deliverable covering Maritime mobile transmitters and receivers for use in the MF and HF bands, as identified below: Part 1: "Technical characteristics and methods of measurement"; Part 2: "Harmonized EN covering essential requirements under article 3.2 of the R&TTE Directive"; Part 3: "Harmonized EN covering essential requirements under article 3.3(e) of the R&TTE Directive; Equipment with integrated or associated equipment for Class E Digital Selective Calling (DSC)".
National transposition dates Date of adoption of this EN: 9 December 2009 Date of latest announcement of this EN (doa): 31 March 2010 Date of latest publication of new National Standard or endorsement of this EN (dop/e):
30 September 2010 Date of withdrawal of any conflicting National Standard (dow): 30 September 2011
ETSI ETSI EN 300 373-3 V1.2.1 (2009-12) 8 1 Scope The present document applies to radio transmitters and receivers, for use on vessels operating in either the Medium Frequency (MF) 1 606,5 kHz to 4 000 kHz bands only, or in the Medium and High Frequency (MF/HF) 1 606,5 kHz to 27,5 MHz bands allocated in the International Telecommunications Union (ITU) Radio Regulations [1], to the Maritime Mobile Service (MMS). The present document refers to equipment for one or more of the following: - Single SideBand (SSB) modulation for telephony transmission and reception (J3E); - Frequency Shift Keying (FSK) or SSB modulation of a keyed sub-carrier to transmit and receive Digital Selective Calling (DSC) signals. The present document refers to radio equipment, which is either fitted with an integrated DSC controller or fitted with a dedicated interface for a DSC controller. The present document is intended to cover the provisions of Directive 1999/5/EC [i.1] (R&TTE Directive) article 3.3 e), which states that radio equipment within the scope of the present document shall be so constructed that: "it supports certain features ensuring access to emergency services". In addition to the present document, other ENs that specify technical requirements in respect of essential requirements under other parts of article 3 of the R&TTE Directive [i.1] will apply to equipment within the scope of the present document. 2 References References are either specific (identified by date of publication and/or edition number or version number) or non-specific. • For a specific reference, subsequent revisions do not apply. • Non-specific reference may be made only to a complete document or a part thereof and only in the following cases: - if it is accepted that it will be possible to use all future changes of the referenced document for the purposes of the referring document; - for informative references. Referenced documents which are not found to be publicly available in the expected location might be found at http://docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee their long term validity. 2.1 Normative references The following referenced documents are indispensable for the application of the present document. For dated references, only the edition cited applies. For non-specific references, the latest edition of the referenced document (including any amendments) applies. [1] ITU Radio Regulations (2008). [2] ETSI EN 300 373-2 (V1.1.2): "Electromagnetic compatibility and Radio spectrum Matters (ERM); Maritime mobile transmitters and receivers for use in the MF and HF bands; Part 2: Harmonized EN covering essential requirements under article 3.2 of the R&TTE Directive". [3] ISO 3791 (1976): "Office machines and data processing equipment - Keyboard layouts for numeric applications". SIST EN 300 373-3 V1.2.1:2010

ETSI ETSI EN 300 373-3 V1.2.1 (2009-12) 9 [4] ETSI EN 300 338-4 (V1.1.1): "Electromagnetic compatibility and Radio spectrum Matters (ERM); Technical characteristics and methods of measurement for equipment for generation, transmission and reception of Digital Selective Calling (DSC) in the maritime MF, MF/HF and/or VHF mobile service; Part 4: Class E DSC". 2.2 Informative references The following referenced documents are not essential to the use of the present document but they assist the user with regard to a particular subject area. For non
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