SIST EN 301 929-1 V1.1.1:2003
(Main)Electromagnetic compatibility and Radio spectrum Matters (ERM); VHF transmitters and receivers as Coast Stations for GMDSS and other applications in the maritime mobile service; Part 1: Technical characteristics and methods of measurement
- Abstract
Develop a standard for VHF coast stations
- Status
- Published
- Publication Date
- 30-Nov-2003
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Dec-2003
- Due Date
- 01-Dec-2003
- Completion Date
- 01-Dec-2003
SIST EN 301 929-1 V1.1.1:2003 is the Slovenian adoption of ETSI EN 301 929-1 V1.1.1, published by SIST. It specifies minimum technical characteristics and methods of measurement for VHF transmitters, receivers and transceivers used as coast stations in the maritime mobile service, including equipment for GMDSS and other applications. Engineers, test labs and buyers use it to check whether analogue speech and/or Digital Selective Calling (DSC) equipment is built and performs as expected.
What does SIST EN 301 929-1 V1.1.1:2003 specify?
SIST EN 301 929-1 V1.1.1:2003 covers VHF coast-station equipment with external antenna connectors. The scope includes local or remote control, 25 kHz channel spacing, Simplex, Semi-Duplex and Duplex operation, single- or multi-channel equipment, and installations on shared sites or in isolation.
The document is organized into clauses on scope, references, definitions and abbreviations, general and operational requirements, technical requirements, measurement conditions, test conditions, transmitter requirements, and receiver requirements. Annex A covers the measuring receiver used for adjacent channel power measurement, and Annex B covers radiated measurements and test sites.
| Annex | What it covers |
|---|---|
| Annex A | Measuring receiver specification for adjacent channel power measurement |
| Annex B | Radiated measurements, test sites, substitution antennas and chamber guidance |
When equipment is not intended for DSC operation, only the non-DSC clauses apply.
What are the key requirements of SIST EN 301 929-1 V1.1.1:2003?
SIST EN 301 929-1 V1.1.1:2003 sets both construction rules and performance tests. In practice, the standard tells a supplier what the equipment must be able to do, and tells a test house how to measure it.
General and operational requirements
Clause 4 requires construction and finish in line with good engineering practice, together with technical documentation. For two-frequency channels, the transmit and receive frequencies must keep the maritime separation used by the Radio Regulations. The equipment must prevent user unblocking or blocking of channels, must not transmit if the synthesizer is out of lock or while channel switching, and must include squelch or mute. These points matter because they prevent accidental or unsafe transmission and make channel control auditable.
Measurement conditions
Clauses 6 and 7 define how tests are performed. They cover receiver input arrangements, squelch, normal test modulation, artificial antenna use, DSC test signals, symbol error rate determination, test channels, power sources, and normal versus extreme environmental conditions. This matters because the same equipment must be checked under repeatable laboratory conditions and under worst-case supply and temperature conditions.
Transmitter performance
Clause 8 measures frequency error, carrier power, frequency deviation, audio response, harmonic distortion, adjacent channel power, spurious emissions, residual modulation, DSC modulation index, modulation attack time, transient frequency behaviour, intermodulation attenuation, generated call sequences, modulation rate for DSC, and demodulated DSC frequency error. In practice, these tests show whether the transmitter stays on frequency, uses the right deviation, keeps unwanted emissions low, and generates valid DSC signals on channel 70.
Receiver performance
Clause 9 covers harmonic distortion, audio frequency response, amplitude characteristic, maximum usable sensitivity, co-channel rejection, adjacent channel selectivity, spurious response, intermodulation response, blocking, noise and hum, conducted and radiated spurious emissions, DSC audio output characteristic, DSC sensitivity, duplex operation, decoding of DSC calls, and DSC blocking and intermodulation immunity. These tests show whether the receiver can hear weak wanted signals, reject interference, and decode DSC reliably.
Duplex and DSC checks
Clause 9.17 adds extra checks for duplex equipment fitted with a duplex filter. Clause 9.18 requires correct decoding of the DSC call types specified by the manufacturer, using the error-detection features defined in ITU-R M.493-10. For users, this is the part that confirms the equipment can support reliable maritime calling and simultaneous transmit/receive use.
What terms does SIST EN 301 929-1 V1.1.1:2003 define?
SIST EN 301 929-1 V1.1.1:2003 defines a small set of terms that are central to the measurements.
- G3E - phase modulation for analogue speech with 6 dB/octave pre-emphasis.
- G2B - phase modulation with digital information and a sub-carrier for DSC operation.
- modulation index - the ratio between frequency deviation and modulation frequency.
- Digital Selective Calling (DSC) - the maritime digital calling system used for DSC operation.
- SINAD - Signal + Noise + Distortion/Noise + Distortion, used to judge receiver output quality.
- emf - electromotive force, used here for input signal level at the receiver.
- EUT - Equipment Under Test, the device being measured.
- VHF - Very High Frequency, the band used by the equipment in this standard.
Who uses SIST EN 301 929-1 V1.1.1:2003?
SIST EN 301 929-1 V1.1.1:2003 is used by radio equipment manufacturers, compliance and type-test laboratories, coast-station operators, regulatory authorities, quality managers, and procurement teams. Manufacturers use it to design the transmitter, receiver, DSC functions and duplex operation. Test labs use it to set up measurements and write reports. Buyers and operators use it to compare equipment that is intended for maritime coast-station service.
Which standards are used with SIST EN 301 929-1 V1.1.1:2003?
SIST EN 301 929-1 V1.1.1:2003 cites these references and companion documents:
- ITU Radio Regulations - provides the maritime channel framework and the channel-separation rule used in the coast-station requirements.
- ITU-R Recommendation M.489-2 - gives technical characteristics for VHF radiotelephone equipment on 25 kHz channels.
- ETSI ETR 028 - provides measurement uncertainty guidance.
- ETSI ETR 273 - provides guidance on radiated measurement methods and their uncertainty.
- ITU-T Recommendation O.41 - provides the psophometer weighting network used in SINAD-related measurements.
- ITU-R Recommendation M.493-10 - defines the DSC system and the content and composition of DSC calls.
- ITU-T Recommendation V.11 - provides electrical characteristics for balanced double-current interchange circuits used for data signaling interfaces.
- Part 2 of EN 301 929 - is the companion part for the harmonized requirements under article 3.2 of the R&TTE Directive.
What does the SIST EN 301 929-1 V1.1.1:2003 document contain?
SIST EN 301 929-1 V1.1.1:2003 contains paired definition-method-limit subsections for most transmitter and receiver characteristics. It also includes measurement setups, including combining networks, FM-modulation meters, storage oscilloscopes, spectrum analysers, substitution antennas and artificial antennas.
Annex A gives the technical shape of the receiver used for adjacent channel power measurements. Annex B describes outdoor and indoor radiated test sites, antenna heights, substitution methods, acoustic coupling for receiver sensitivity tests, and calibration guidance for shielded anechoic chambers. The document also includes figures for transmitter transient behaviour and tabulated limits for unwanted emissions and receiver performance.
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Frequently Asked Questions
SIST EN 301 929-1 V1.1.1:2003 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Electromagnetic compatibility and Radio spectrum Matters (ERM); VHF transmitters and receivers as Coast Stations for GMDSS and other applications in the maritime mobile service; Part 1: Technical characteristics and methods of measurement". This standard covers: Develop a standard for VHF coast stations
Develop a standard for VHF coast stations
SIST EN 301 929-1 V1.1.1:2003 is classified under the following ICS (International Classification for Standards) categories: 33.060.20 - Receiving and transmitting equipment; 33.100.01 - Electromagnetic compatibility in general; 47.020.70 - Navigation and control equipment. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 301 929-1 V1.1.1:2003 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.WRGHElectromagnetic compatibility and Radio spectrum Matters (ERM); VHF transmitters and receivers as Coast Stations for GMDSS and other applications in the maritime mobile service; Part 1: Technical characteristics and methods of measurement47.020.70Navigacijska in krmilna opremaNavigation and control equipment33.100.01Elektromagnetna združljivost na splošnoElectromagnetic compatibility in general33.060.20Sprejemna in oddajna opremaReceiving and transmitting equipmentICS:Ta slovenski standard je istoveten z:EN 301 929-1 Version 1.1.1SIST EN 301 929-1 V1.1.1:2003en01-december-2003SIST EN 301 929-1 V1.1.1:2003SLOVENSKI
STANDARD
ETSI ETSI EN 301 929-1 V1.1.1 (2002-01) 2
Reference DEN/ERM-RP01-041-1 Keywords maritime, VHF, radio, GMDSS 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.fr 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 2002. All rights reserved.
ETSI ETSI EN 301 929-1 V1.1.1 (2002-01) 3 Contents Intellectual Property Rights.8 Foreword.8 1 Scope.9 2 References.9 3 Definitions and abbreviations.10 3.1 Definitions.10 3.2 Abbreviations.10 4 General and operational requirements.10 4.1 Construction.10 4.2 Controls and indicators.11 4.3 Safety precautions.11 4.4 Labelling.11 5 Technical requirements.12 5.1 Switching time.12 5.2 Class of emission and modulation characteristics.12 5.3 Use of Channel 70.12 5.4 Audio line.12 5.5 DSC Controller Interfaces.12 6 General conditions of measurement.12 6.1 Arrangements for test signals applied to the receiver input.12 6.2 Squelch.12 6.3 Normal test modulation.13 6.4 Artificial antenna.13 6.5 Standard test signals for DSC.13 6.5.1 References to standard test signals.13 6.5.2 Standard test signal.13 6.6 Determination of the symbol error rate in the output of the receiving part.13 6.7 DSC Decoder.13 6.8 Test channels.13 6.9 Interpretation of the measured results.14 7 Test conditions, power sources and ambient temperatures.15 7.1 Normal and extreme test conditions.15 7.2 Test power source.15 7.3 Normal test conditions.15 7.3.1 Normal temperature and humidity.15 7.3.2 Normal power sources.15 7.3.2.1 Mains voltage and frequency.15 7.3.2.2 Lead Acid Battery power source.15 7.3.2.3 Other power sources.15 7.4 Test under extreme test conditions.16 7.4.1 General.16 7.4.2 Extreme temperatures.16 7.4.3 Extreme values of test power sources.16 7.4.3.1 Mains voltage.16 7.4.3.2 Battery power source.16 7.4.3.3 Other power sources.16 7.5 Procedure for tests at extreme temperatures.16 8 Transmitter.16 8.1 Frequency Error.16 8.1.1 Definition.16 8.1.2 Method of measurement.16 SIST EN 301 929-1 V1.1.1:2003
ETSI ETSI EN 301 929-1 V1.1.1 (2002-01) 4 8.1.3 Limits.17 8.2 Carrier power.17 8.2.1 Definitions.17 8.2.2 Method of measurement.17 8.2.3 Limits.17 8.2.3.1 Normal test conditions.17 8.2.3.2 Extreme test conditions.17 8.3 Frequency deviation.17 8.3.1 Definition.17 8.3.2 Maximum permissible frequency deviation.17 8.3.2.1 Method of measurement.17 8.3.2.2 Limits.17 8.3.3 Reduction of frequency deviation at modulation frequencies above 3 kHz.18 8.3.3.1 Method of measurement.18 8.3.3.2 Limits.18 8.4 Audio frequency response.18 8.4.1 Definition.18 8.4.2 Method of measurement.18 8.4.3 Limit.19 8.5 Audio frequency harmonic distortion of the emission.19 8.5.1 Definition.19 8.5.2 Method of measurement.19 8.5.3 Limits.20 8.6 Adjacent channel power.20 8.6.1 Definition.20 8.6.2 Method of measurement.20 8.6.3 Limit.20 8.7 Conducted spurious emissions conveyed to the antenna.20 8.7.1 Definition.20 8.7.2 Method of measurement.21 8.7.3 Limit.21 8.8 Cabinet radiation and conducted spurious emissions other than those conveyed to the antenna.21 8.8.1 Definitions.21 8.8.2 Method of measurement.21 8.8.3 Limits.22 8.9 Residual modulation of the transmitter.23 8.9.1 Definition.23 8.9.2 Method of measurement.23 8.9.3 Limit.23 8.10 DSC transmitter modulation index.23 8.10.1 Definition.23 8.10.2 Method of measurement.23 8.10.3 Limits.23 8.11 DSC audio input limitation.23 8.11.1 Definition.23 8.11.2 Method of measurement.24 8.11.3 Limit.24 8.12 Modulation attack time.24 8.12.1 Definition.24 8.12.2 Method of measurement.24 8.12.3 Limit.24 8.13 Transient frequency behaviour of the transmitter.25 8.13.1 Definitions.25 8.13.2 Method of measurement.26 8.13.3 Limits.28 8.14 Intermodulation attenuation.28 8.14.1 Definition.28 8.14.2 Method of measurement.28 8.14.3 Limits.29 8.15 Testing of generated call sequences.29 8.15.1 Definition.29 8.15.2 Method of measurement.29 SIST EN 301 929-1 V1.1.1:2003
ETSI ETSI EN 301 929-1 V1.1.1 (2002-01) 5 8.15.3 Requirement.30 8.16 Modulation rate for DSC.30 8.16.1 Definition.30 8.16.2 Method of measurement.30 8.16.3 Limits.30 8.17 Frequency error (demodulated DSC signal).30 8.17.1 Definition.30 8.17.2 Method of measurement.30 8.17.3 Limits.30 9 Receiver.31 9.1 Harmonic distortion.31 9.1.1 Definition.31 9.1.2 Method of measurement.31 9.1.2.1 Audio line output.31 9.1.2.2 Under normal test conditions.31 9.1.2.3 Under extreme test conditions.31 9.1.3 Limits.31 9.2 Audio frequency response.31 9.2.1 Definition.31 9.2.2 Method of measurement.31 9.2.3 Limits.32 9.3 Amplitude characteristic of the receiver.32 9.3.1 Definition.32 9.3.2 Method of measurement.32 9.3.3 Limits.33 9.4 Maximum usable sensitivity.33 9.4.1 Definition.33 9.4.2 Method of measurement.33 9.4.3 Limits.33 9.5 Co-channel rejection.33 9.5.1 Definition.33 9.5.2 Method of measurement.33 9.5.3 Limits.34 9.6 Adjacent channel selectivity.34 9.6.1 Definition.34 9.6.2 Method of measurement.34 9.6.3 Limits.34 9.7 Spurious response.34 9.7.1 Definition.34 9.7.2 Method of measurement.34 9.7.3 Limit.35 9.8 Intermodulation response.35 9.8.1 Definition.35 9.8.2 Method of measurement.35 9.8.3 Limit.35 9.9 Blocking or desensitization.35 9.9.1 Definition.35 9.9.2 Method of measurement.36 9.9.3 Limit.36 9.10 Receiver noise and hum level.36 9.10.1 Definition.36 9.10.2 Method of measurement.36 9.10.3 Limit.36 9.11 Spurious emissions.36 9.11.1 Definition.36 9.11.2 Conducted spurious emissions.37 9.11.2.1 Method of measurement.37 9.11.2.2 Limit.37 9.11.3 Radiated spurious emissions.37 9.11.3.1 Method of measurement.37 9.11.3.2 Limit.38 SIST EN 301 929-1 V1.1.1:2003
ETSI ETSI EN 301 929-1 V1.1.1 (2002-01) 6 9.12 DSC audio output characteristic.38 9.12.1 Definition.38 9.12.2 Methods of measurement.38 9.12.3 Limit.39 9.13 DSC receiver maximum usable sensitivity.39 9.13.1 Definition.39 9.13.2 Method of measurement.39 9.13.3 Limits.39 9.14 DSC receiver co-channel rejection.39 9.14.1 Definition.39 9.14.2 Method of measurement.39 9.14.3 Limits.39 9.15 DSC receiver adjacent channel selectivity.40 9.15.1 Definition.40 9.15.2 Method of measurement.40 9.15.3 Limits.40 9.16 DSC receiver dynamic range.40 9.16.1 Definition.40 9.16.2 Method of measurement.40 9.16.3 Limit.40 9.17 Duplex operation.40 9.17.1 Introduction.40 9.17.2 Receiver desensitization with simultaneous transmission and reception.41 9.17.2.1 Definition.41 9.17.2.2 Method of measurement.41 9.17.2.3 Limits.41 9.17.3 Duplex transceiver internal mixing.41 9.17.3.1 Definition.41 9.17.3.2 Method of measurement.41 9.17.3.3 Limits.42 9.18 Verification of correct decoding of various types of DSC calls.42 9.18.1 Definition.42 9.18.2 Method of measurement.42 9.18.3 Requirement.42 9.19 DSC spurious response and blocking immunity.42 9.19.1 Definition.42 9.19.2 Method of measurement.42 9.19.3 Limits.43 9.20 DSC Intermodulation response.43 9.20.1 Definition.43 9.20.2 Method of measurement.43 9.20.3 Limits.43 Annex A (normative): Measuring receiver for adjacent channel power measurement.44 A.1 Power measuring receiver specification.44 A.1.1 IF filter.44 A.1.2 Attenuation indicator.45 A.1.3 RMS value indicator.45 A.1.4 Oscillator and amplifier.45 Annex B (normative): Radiated measurements.46 B.1 Test sites and general arrangements for measurements involving the use of radiated fields.46 B.1.1 Outdoor test site.46 B.1.2 Test antenna.46 B.1.3 Substitution antenna.47 B.1.4 Optional additional indoor site.47 B.2 Guidance on the use of radiation test sites.48 B.2.1 Measuring distance.48 B.2.2 Test antenna.48 B.2.3 Substitution antenna.48 SIST EN 301 929-1 V1.1.1:2003
ETSI ETSI EN 301 929-1 V1.1.1 (2002-01) 7 B.2.4 Artificial antenna.49 B.2.5 Auxiliary cables.49 B.2.6 Acoustic measuring arrangement.49 B.3 Further optional alternative indoor test site using an anechoic chamber.49 B.3.1 Example of the construction of a shielded anechoic chamber.50 B.3.2 Influence of parasitic reflections in anechoic chambers.50 B.3.3 Calibration of the shielded anechoic chamber.51 History.53
ETSI ETSI EN 301 929-1 V1.1.1 (2002-01) 8 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 European Standard (Telecommunications series) has been produced by ETSI Technical Committee Electromagnetic compatibility and Radio spectrum Matters (ERM). The present document is part 1 of a multi-part deliverable covering VHF transmitters and receivers as Coast Stations for GMDSS and other applications in the maritime mobile service, as identified below: Part 1: "Technical characteristics and methods of measurement"; Part 2: "Harmonized EN under article 3.2 of the R&TTE Directive".
National transposition dates Date of adoption of this EN: 11 January 2002 Date of latest announcement of this EN (doa): 30 April 2002 Date of latest publication of new National Standard or endorsement of this EN (dop/e):
31 October 2002 Date of withdrawal of any conflicting National Standard (dow): 31 October 2002
ETSI ETSI EN 301 929-1 V1.1.1 (2002-01) 9 1 Scope The present document specifies the minimum requirements for transmitters, receivers and transceivers fitted with external antenna connectors, used as coast stations, operating in the VHF band of the maritime mobile service. This includes: - equipment operating under local or remote control; - equipment operating on 25 kHz channel spacing; - equipment capable of analogue speech, Digital Selective Calling (DSC), or both; - equipment operating in Simplex, Semi-Duplex (Half Duplex) and Duplex modes; - equipment which may consist of more than one unit; - equipment which may be single-channel or multi-channel; - equipment operating on shared radio sites; - equipment operating in isolation from other radio equipment. Where the equipment is not intended for DSC operation, only those clauses relevant to non-DSC tests are applicable. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. • 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. • For a non-specific reference, the latest version applies. [1] ITU Radio Regulations (1998). [2] ITU-R Recommendation M.489-2: "Technical characteristics of VHF radiotelephone equipment operating in the maritime mobile service in channels spaced by 25 kHz". [3] ETSI ETR 028 (1994): "Radio Equipment and Systems (RES); Uncertainties in the measurement of mobile radio equipment characteristics". [4] ETSI ETR 273: "Electromagnetic compatibility and Radio spectrum Matters (ERM); Improvement of radiated methods of measurement (using test sites) and evaluation of the corresponding measurement uncertainties". [5] ITU-T Recommendation O.41: "Psophometer for use on telephone-type circuits". [6] ITU-R Recommendation M.493-10: "Digital selective-calling system for use in the maritime mob
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