ETSI EN 301 178 V1.1.1 (1999-05)

ElectroMagnetic Compatibility and Radio Spectrum Matters (ERM); Technical characteristics and methods of measurement for portable Very High Frequency (VHF) radiotelephone equipment for the maritime mobile service operating in the VHF bands (for non-GMDSS applications only)

DEN/ERM-RP01-012

Elektromagnetna združljivost (EMC) in zadeve v zvezi z radijskim spektrom (ERM) - Tehnične karakteristike in merilne metode za prenosne radiotelefonske naprave VHF za pomorsko mobilno službo, ki delujejo na pasu VHF (samo za uporabo izven GMDSS)

General Information

• Status: Published
• Publication Date: 18-May-1999
• Technical Committee: ERM RP01 - Maritime Radio
• Current Stage: 12 - Completion
• Due Date: 14-May-1999
• Completion Date: 19-May-1999
• Ref Project: SIST EN 301 178:2000 - ElectroMagnetic Compatibility and Radio Spectrum Matters (ERM); Technical characteristics and methods of measurement for portable Very High Frequency (VHF) radiotelephone equipment for the maritime mobile service operating in the VHF bands (for non-GMDSS applications only)

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2000
(OHNWURPDJQHWQD]GUXåOMLYRVW(0&LQ]DGHYHY]YH]L]UDGLMVNLPVSHNWURP(50
7HKQLþQHNDUDNWHULVWLNHLQPHULOQHPHWRGH]DSUHQRVQHUDGLRWHOHIRQVNHQDSUDYH
9+)]DSRPRUVNRPRELOQRVOXåERNLGHOXMHMRQDSDVX9+)VDPR]DXSRUDER
L]YHQ*0'66
ElectroMagnetic Compatibility and Radio Spectrum Matters (ERM); Technical
characteristics and methods of measurement for portable Very High Frequency (VHF)
radiotelephone equipment for the maritime mobile service operating in the VHF bands
(for non-GMDSS applications only)
Ta slovenski standard je istoveten z: EN 301 178 Version 1.1.1
ICS:
33.060.99 Druga oprema za radijske Other equipment for
komunikacije radiocommunications
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
47.020.70 Navigacijska in krmilna Navigation and control
oprema equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 301 178 V1.1.1 (1999-05)
European Standard (Telecommunications series)
Electromagnetic compatibility
and Radio spectrum Matters (ERM);
Technical characteristics and methods of measurement for
portable Very High Frequency (VHF) radiotelephone equipment
for the maritime mobile service operating in the VHF bands
(for non-GMDSS applications only)

2 ETSI EN 301 178 V1.1.1 (1999-05)
Reference
DEN/ERM-RP01-012 (awo00ico.PDF)
Keywords
maritime, radio
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Copyright Notification
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The copyright and the foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 1999.
All rights reserved.
ETSI
3 ETSI EN 301 178 V1.1.1 (1999-05)
Contents
Intellectual Property Rights . 7
Foreword. 7
1 Scope. 8
2 References . 8
3 Definitions, symbols and abbreviations. 9
3.1 Definitions . 9
3.2 Symbols . 9
3.3 Abbreviations. 9
4 General and operational requirements. 9
4.1 Construction. 9
4.2 Controls and indicators . 10
4.3 Microphone and loudspeaker. 11
4.4 Safety precautions. 11
4.5 Labelling. 11
5 Technical requirements. 11
5.1 Switching time . 11
5.2 Class of emission and modulation characteristics. 11
6 General conditions of measurement . 12
6.1 Arrangements for RF connections to the equipment. 12
6.1.1 RF connections to integral antenna equipment. 12
6.1.2 RF connection to equipment with a detachable antenna. 12
6.2 Arrangements for test signals applied to the receiver input . 12
6.3 Squelch . 12
6.4 Normal test modulation. 12
6.5 Artificial antenna . 12
6.6 Arrangements for test signals applied to the transmitter input . 12
6.7 Test channels . 12
6.8 Measurement uncertainty and interpretation of the measured results . 13
6.8.1 Measurement uncertainty . 13
6.8.2 Interpretation of the measurement results. 13
6.9 Test conditions, power sources and ambient temperatures . 13
6.9.1 Normal and extreme test conditions . 13
6.9.2 Test power source . 14
6.10 Normal test conditions . 14
6.10.1 Normal temperature and humidity. 14
6.10.2 Normal power sources. 14
6.10.2.1 Battery power source. 14
6.10.2.2 Other power sources . 14
6.11 Extreme test conditions. 14
6.11.1 Extreme temperatures. 14
6.11.2 Extreme values of test power sources. 15
6.11.2.1 Battery power source. 15
6.11.2.2 Other power sources . 15
6.12 Procedure for tests at extreme temperatures . 15
7 Environmental tests . 15
7.1 Procedure. 15
7.2 Performance check. 15
7.3 Drop test . 15
7.3.1 Definition . 15
7.3.2 Method of measurement. 16
7.3.3 Requirement . 16
7.4 Temperature tests. 16
ETSI
4 ETSI EN 301 178 V1.1.1 (1999-05)
7.4.1 Definition . 16
7.4.2 Dry heat. 16
7.4.2.1 Definition. 16
7.4.2.2 Method of measurement . 16
7.4.2.3 Requirement . 16
7.4.3 Damp heat . 16
7.4.3.1 Definition. 16
7.4.3.2 Method of measurement . 17
7.4.3.3 Requirement . 17
7.4.4 Low temperature cycle . 17
7.4.4.1 Definition. 17
7.4.4.2 Method of measurement . 17
7.4.4.3 Requirement . 17
8 Transmitter. 17
8.1 Frequency error. 17
8.1.1 Definition . 17
8.1.2 Method of measurement. 18
8.1.3 Limits . 18
8.2 Carrier power. 18
8.2.1 Definitions. 18
8.2.2 Method of measurement. 18
8.2.3 Limits, Normal and extreme test conditions. 18
8.3 Frequency deviation. 18
8.3.1 Definition . 18
8.3.2 Maximum permissible frequency deviation. 18
8.3.2.1 Method of measurement . 18
8.3.2.2 Limits. 19
8.3.3 Reduction of frequency deviation at modulation frequencies above 3 kHz . 19
8.3.3.1 Method of measurement . 19
8.3.3.2 Limits. 19
8.4 Sensitivity of the modulator, including microphone . 19
8.4.1 Definition . 19
8.4.2 Method of measurement. 20
8.4.3 Limits . 20
8.5 Audio frequency response. 20
8.5.1 Definition . 20
8.5.2 Method of measurement. 20
8.5.3 Limit. 20
8.6 Audio frequency harmonic distortion of the emission . 21
8.6.1 Definition . 21
8.6.2 Method of measurement. 21
8.6.2.1 Normal test conditions. 21
8.6.2.2 Extreme test conditions. 22
8.6.3 Limits . 22
8.7 Adjacent channel power. 22
8.7.1 Definition . 22
8.7.2 Method of measurement. 22
8.7.3 Limits . 22
8.8 Conducted spurious emissions conveyed to the antenna. 23
8.8.1 Definition . 23
8.8.2 Method of measurement. 23
8.8.3 Limit. 23
8.9 Cabinet radiation and conducted spurious emissions other than those conveyed to the antenna . 23
8.9.1 Definitions. 23
8.9.2 Method of measurement. 23
8.9.3 Limits . 24
8.10 Residual modulation of the transmitter . 24
8.10.1 Definition . 24
8.10.2 Method of measurement. 25
8.10.3 Limit. 25
ETSI
5 ETSI EN 301 178 V1.1.1 (1999-05)
8.11 Transient frequency behaviour of the transmitter . 25
8.11.1 Definitions. 25
8.11.2 Method of measurement. 26
8.11.3 Limits . 27
9 Receiver . 29
9.1 Harmonic distortion and rated audio frequency output power. 29
9.1.1 Definition . 29
9.1.2 Methods of measurement . 29
9.1.3 Limits . 29
9.2 Audio frequency response. 29
9.2.1 Definition . 29
9.2.2 Method of measurement. 29
9.2.3 Limits . 30
9.3 Maximum usable sensitivity. 31
9.3.1 Definition . 31
9.3.2 Method of measurement. 31
9.3.3 Limits . 31
9.4 Co-channel rejection. 31
9.4.1 Definition . 31
9.4.2 Method of measurement. 31
9.4.3 Limit. 32
9.5 Adjacent channel selectivity . 32
9.5.1 Definition . 32
9.5.2 Method of measurement. 32
9.5.3 Limits . 32
9.6 Spurious response rejection . 32
9.6.1 Definition . 32
9.6.2 Method of measurement. 32
9.6.3 Limit. 33
9.7 Intermodulation response. 33
9.7.1 Definition . 33
9.7.2 Method of measurement. 33
9.7.3 Limit. 33
9.8 Blocking or desensitization. 33
9.8.1 Definition . 33
9.8.2 Method of measurement. 34
9.8.3 Limit. 34
9.9 Conducted spurious emissions . 34
9.9.1 Definition . 34
9.9.2 Method of measurement. 34
9.9.3 Limit. 34
9.10 Radiated spurious emissions . 34
9.10.1 Definition . 34
9.10.2 Method of measurements . 35
9.10.3 Limit. 35
9.11 Receiver noise and hum level . 36
9.11.1 Definition . 36
9.11.2 Method of measurement. 36
9.11.3 Limit. 36
9.12 Squelch operation . 36
9.12.1 Definition . 36
9.12.2 Method of measurement. 36
9.12.3 Limits . 37
9.13 Squelch hysteresis. 37
9.13.1 Definition . 37
9.13.2 Method of measurement. 37
9.13.3 Limit. 37
ETSI
6 ETSI EN 301 178 V1.1.1 (1999-05)
Annex A (normative): Measuring receiver for adjacent channel power measurement . 38
A.1 Power measuring receiver specification. 38
A.1.1 IF filter. 38
A.1.2 Attenuation indicator . 39
A.1.3 Rms value indicator . 39
A.1.4 Oscillator and amplifier . 39
Annex B (normative): Radiated measurements . 40
B.1 Test sites and general arrangements for measurements involving the use of radiated fields. 40
B.1.1 Outdoor test site. 40
B.1.2 Test antenna. 40
B.1.3 Substitution antenna. 41
B.1.4 Optional additional indoor site . 41
B.2 Guidance on the use of radiation test sites . 42
B.2.1 Measuring distance . 42
B.2.2 Test antenna. 42
B.2.3 Substitution antenna. 42
B.2.4 Artificial antenna . 43
B.2.5 Auxiliary cables . 43
B.2.6 Acoustic measuring arrangement . 43
B.3 Further optional alternative indoor test site using an anechoic chamber . 43
B.3.1 Example of the construction of a shielded anechoic chamber. 44
B.3.2 Influence of parasitic reflections in anechoic chambers. 44
B.3.3 Calibration of the shielded anechoic chamber . 45
History. 47
ETSI
7 ETSI EN 301 178 V1.1.1 (1999-05)
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 SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect
of ETSI standards", which is available free of charge from the ETSI Secretariat. Latest updates are available on the
ETSI Web server (http://www.etsi.org/ipr).
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 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).
National transposition dates
Date of adoption of this EN: 30 April 1999
Date of latest announcement of this EN (doa): 31 July 1999
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 January 2000
Date of withdrawal of any conflicting National Standard (dow): 31 January 2000
ETSI
8 ETSI EN 301 178 V1.1.1 (1999-05)
1 Scope
The present document states the minimum technical characteristics and methods of measurement required for portable
Very High Frequency (VHF) radiotelephones not providing maritime distress and safety communications functions
(i.e. not forming part of the Global Maritime Distress and Safety System (GMDSS)) operating in the bands between
156 MHz and 174 MHz allocated to the maritime mobile services by the Radio Regulations, Appendix 18 [1].
The present document also specifies technical characteristics, methods of measurement and required test results.
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, edition number, version number, etc.) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• For a non-specific reference, the latest version applies.
• A non-specific reference to an ETS shall also be taken to refer to later versions published as an EN with the same
number.
[1] Radio Regulations, Appendix 18 (1990): "Table of Transmitting Frequencies in the Band
156-174 MHz for Stations in the Maritime Mobile Service".
[2] ITU-T Recommendation E.161 (1993): "Arrangement of digits, letters and symbols on telephones
and other devices that can be used for gaining access to a telephone network".
[3] ITU-R Recommendation M.493-9 (1997): "Digital selective-calling system for use in the maritime
mobile service".
[4] ITU-R Recommendation M.541-8 (1997): "Operational procedures for the use of digital
selective-calling equipment in the maritime mobile service".
[5] ETS 300 225: "Radio Equipment and Systems (RES); Technical characteristics and methods of
measurement for survival craft portable VHF radiotelephone apparatus".
[6] ITU-T Recommendation P.53 (1994): "Psophometer for use on telephone-type circuits".
[7] ITU-R Recommendation SM 332-4: "Selectivity of receivers".
[8] ETR 028: "Radio Equipment and Systems (RES); Uncertainties in the measurement of mobile
radio equipment characteristics".
ETSI
9 ETSI EN 301 178 V1.1.1 (1999-05)
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the following definitions apply:
integral antenna: antenna that is permanently fixed to the equipment and not detachable by the user.
detachable antenna: antenna fixed to the equipment by means of an antenna connector and detachable by the user.
G3E: phase-modulation (frequency modulation with a pre-emphasis of 6 dB/octave) for speech.
modulation index: ratio between the frequency deviation and the modulation frequency.
performance check: check of:
- the transmitter carrier power and frequency; and
- receiver sensitivity.
3.2 Symbols
For the purposes of the present document, the following symbols apply:
-5
dBA Relative to 2 x 10 Pa
emf Electromotive force
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
DSC Digital Selective Calling
EUT Equipment Under Test
GMDSS Global Maritime Distress and Safety System
rms root mean square
SINAD (Signal + Noise + Distortion)/(Noise + Distortion)
VHF Very High Frequency
4 General and operational requirements
4.1 Construction
The manufacturer shall declare that compliance to the requirements of clause 4 is achieved and shall provide relevant
documentation.
The mechanical and electrical construction and finish of the equipment shall conform in all respects to good engineering
practice, and the equipment shall be suitable for use on board ships.
All controls shall be of sufficient size to enable the usual control functions to be easily performed and the number of
controls should be the minimum necessary for simple and satisfactory operation.
All parts of the equipment to be checked during inspection or maintenance operations shall be readily accessible. The
components shall be readily identifiable.
Technical documentation shall be supplied with the equipment.
ETSI
10 ETSI EN 301 178 V1.1.1 (1999-05)
The VHF maritime mobile service uses both single-frequency and two-frequency channels. For two-frequency channels
there shall be a separation of 4,6 MHz between the transmitting frequency and the receiving frequency
(see Radio Regulations Appendix 18 [1]).
The equipment, which can consist of more than one unit, shall be capable of operating on single frequency and
two-frequency channels with manual control (simplex).
The equipment shall be of a colour which distinguishes it from the portable VHF equipment specified in
ETS 300 225 [5].
The equipment shall be able to operate on all channels defined in Radio Regulations, Appendix 18 [1].
Operation on channels 75 and 76 shall be restricted to a maximum transmitted power of 1W.
Additional VHF channels outside those defined by Radio Regulations, Appendix 18 [1] may also be
provided, but means shall be provided to block any channel, including Appendix 18 channels.
It shall not be possible for the user to unblock or block any channels.
Scan or multiple watch may be provided but means shall be provided to block or unblock these functions.
If the equipment is fitted with an auxiliary antenna connector, simultaneous connection of both the auxiliary antenna and
the normal antenna shall be prevented.
The equipment shall be so designed that use of channel 70 for purposes other than Digital Selective Calling (DSC) is
prevented (see ITU-R Recommendation M.493-9 [3] and ITU-R Recommendation M.541–8 [4]).
It shall not be possible to transmit while any frequency synthesizer used within the transmitter is out of lock.
It shall not be possible to transmit during channel switching operations.
4.2 Controls and indicators
The equipment shall have a channel selector and shall indicate the designator, as shown in
Radio Regulations, Appendix 18 [1], of the channel at which the equipment is set. The channel designator shall be
legible irrespective of the external lighting conditions.
Where an input panel on the equipment for entering the digits 0 to 9 is provided, this shall conform to
ITU-T Recommendation E.161 [2].
The equipment shall have the following additional controls and indicators:
- on/off switch for the equipment with a visual indication that the equipment is in operation;
- a manual, non-locking push to talk switch to operate the transmitter;
- a switch for reducing transmitter output power to no more than 1 W where the RF output power is more than 1
watt;
- an audio frequency power volume control;
- a squelch control;
- a visual indication that the transmitter is activated.
The equipment shall also meet the following requirements:
- the user shall not have access to any control which, if wrongly set, might impair the technical characteristics of
the equipment.
ETSI
11 ETSI EN 301 178 V1.1.1 (1999-05)
4.3 Microphone and loudspeaker
The equipment shall be fitted with an integral microphone and an integral loudspeaker.
During transmission the receiver output shall be muted.
4.4 Safety precautions
Measures shall be taken to protect the equipment against the effects of overcurrent or overvoltage.
Measures shall be taken to prevent damage to the equipment that might arise from an accidental reversal of polarity of
the electrical power source.
No damage to the equipment shall occur when the antenna terminals are placed on open circuit or short circuit while
transmitting for a period of at least 5 minutes in each case.
In order to provide protection against damage due to the build up of static voltages at the antenna terminals, there shall
be a dc path from the antenna terminals to chassis not exceeding 100 kW.
The information in any volatile memory device shall be protected from interruptions in the power supply of up to 60 s
duration.
4.5 Labelling
All controls, instruments, indicators and terminals shall be clearly labelled.
Details of any external power supply from which the equipment is intended to operate shall be clearly indicated on the
equipment.
The equipment shall be clearly and indelibly marked on the exterior with the identification of the manufacturer, type
designation of the equipment, the serial number of the unit and the text: "Not intended for distress and safety purposes".
The compass safe distance shall be stated on the equipment.
5 Technical requirements
5.1 Switching time
The channel switching arrangement shall be such that the time necessary to change over from using one of the channels
to using any other channel does not exceed 5 s.
The time necessary to change over from transmission to reception or vice versa, shall not exceed 0,3 s.
5.2 Class of emission and modulation characteristics
The equipment shall use phase modulation, G3E (frequency modulation with a pre-emphasis of 6 dB/octave) for speech.
The equipment shall be designed to operate satisfactorily with a channel separation of 25 kHz.
The frequency deviation corresponding to 100 % modulation shall be ± 5 kHz as nearly as practicable.
ETSI
12 ETSI EN 301 178 V1.1.1 (1999-05)
6 General conditions of measurement
6.1 Arrangements for RF connections to the equipment
6.1.1 RF connections to integral antenna equipment
For equipment without an antenna connector, the manufacturer shall prepare the equipment with a tempor
...