ETSI EN 301 178-1 V1.2.1 (2003-12)

SLOVENSKI STANDARD
01-december-2003
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Electromagnetic compatibility and Radio spectrum Matters (ERM); Portable Very High
Frequency (VHF) radiotelephone equipment for the maritime mobile service operating in
the VHF bands (for non-GMDSS applications only); Part 1: Technical characteristics and
methods of measurement
Ta slovenski standard je istoveten z: EN 301 178-1 Version 1.2.1
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.

European Standard (Telecommunications series)

Electromagnetic compatibility
and Radio spectrum Matters (ERM);
Portable Very High Frequency (VHF) radiotelephone
equipment for the maritime mobile service operating
in the VHF bands (for non-GMDSS applications only);
Part 1: Technical characteristics and
methods of measurement
2 ETSI EN 301 178-1 V1.2.1 (2003-12)

Reference
REN/ERM-TG26-062-1
Keywords
maritime, radio, VHF
ETSI
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ETSI
3 ETSI EN 301 178-1 V1.2.1 (2003-12)
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.14
6.11.2.1 Battery power source.14
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.15
7.3.3 Requirement.16
7.4 Temperature tests.16
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4 ETSI EN 301 178-1 V1.2.1 (2003-12)
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.18
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.19
8.4.3 Limits.19
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 .21
8.6.3 Limits.21
8.7 Adjacent channel power .21
8.7.1 Definition.21
8.7.2 Method of measurement.21
8.7.3 Limits.22
8.8 Conducted spurious emissions conveyed to the antenna .22
8.8.1 Definition.22
8.8.2 Method of measurement.22
8.8.3 Limit.22
8.9 Cabinet radiation and conducted spurious emissions other than those conveyed to the antenna .22
8.9.1 Definitions.22
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.24
8.10.3 Limit.24
8.11 Transient frequency behaviour of the transmitter.24
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5 ETSI EN 301 178-1 V1.2.1 (2003-12)
8.11.1 Definitions.24
8.11.2 Method of measurement.25
8.11.3 Limits.26
9 Receiver.28
9.1 Harmonic distortion and rated audio frequency output power .28
9.1.1 Definition.28
9.1.2 Methods of measurement.28
9.1.3 Limits.28
9.2 Audio frequency response .28
9.2.1 Definition.28
9.2.2 Method of measurement.28
9.2.3 Limits.29
9.3 Maximum usable sensitivity.30
9.3.1 Definition.30
9.3.2 Method of measurement.30
9.3.3 Limits.30
9.4 Co-channel rejection.30
9.4.1 Definition.30
9.4.2 Method of measurement.30
9.4.3 Limit.31
9.5 Adjacent channel selectivity.31
9.5.1 Definition.31
9.5.2 Method of measurement.31
9.5.3 Limits.31
9.6 Spurious response rejection.31
9.6.1 Definition.31
9.6.2 Method of measurement.31
9.6.3 Limit.32
9.7 Intermodulation response.32
9.7.1 Definition.32
9.7.2 Method of measurement.32
9.7.3 Limit.32
9.8 Blocking or desensitization .32
9.8.1 Definition.32
9.8.2 Method of measurement.33
9.8.3 Limit.33
9.9 Conducted spurious emissions .33
9.9.1 Definition.33
9.9.2 Method of measurement.33
9.9.3 Limit.33
9.10 Radiated spurious emissions.33
9.10.1 Definition.33
9.10.2 Method of measurements.34
9.10.3 Limit.34
9.11 Receiver noise and hum level.35
9.11.1 Definition.35
9.11.2 Method of measurement.35
9.11.3 Limit.35
9.12 Squelch operation.35
9.12.1 Definition.35
9.12.2 Method of measurement.35
9.12.3 Limits.36
9.13 Squelch hysteresis.36
9.13.1 Definition.36
9.13.2 Method of measurement.36
9.13.3 Limit.36
Annex A (normative): Measuring receiver for adjacent channel power measurement.37
A.1 Power measuring receiver specification.37
A.1.1 IF filter.37
A.1.2 Attenuation indicator.38
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6 ETSI EN 301 178-1 V1.2.1 (2003-12)
A.1.3 Rms value indicator.38
A.1.4 Oscillator and amplifier.38
Annex B (normative): Radiated measurements.39
B.1 Test sites and general arrangements for measurements involving the use of radiated fields.39
B.1.1 Outdoor test site .39
B.1.2 Test antenna.40
B.1.3 Substitution antenna.40
B.1.4 Optional additional indoor site .40
B.2 Guidance on the use of radiation test sites .41
B.2.1 Measuring distance.41
B.2.2 Test antenna.41
B.2.3 Substitution antenna.41
B.2.4 Artificial antenna.42
B.2.5 Auxiliary cables.42
B.2.6 Acoustic measuring arrangement.42
B.3 Further optional alternative indoor test site using an anechoic chamber .42
B.3.1 Example of the construction of a shielded anechoic chamber.43
B.3.2 Influence of parasitic reflections in anechoic chambers.43
B.3.3 Calibration of the shielded anechoic chamber.44
History .46

ETSI
7 ETSI EN 301 178-1 V1.2.1 (2003-12)
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 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 the Electromagnetic compatibility and Radio
spectrum Matters (ERM); Portable Very High Frequency (VHF) radiotelephone equipment for the maritime mobile
service operating in the VHF bands (for non-GMDSS applications only), 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: 5 December 2003
Date of latest announcement of this EN (doa): 31 March 2004
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 September 2004
Date of withdrawal of any conflicting National Standard (dow): 30 September 2004

ETSI
8 ETSI EN 301 178-1 V1.2.1 (2003-12)
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 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.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
[1] Radio Regulations, appendix 18 (2001): "Table of Transmitting Frequencies in the Band
156-174 MHz for Stations in the Maritime Mobile Service".
[2] ITU-T Recommendation E.161 (2001): "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.493-10 (2000): "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] ETSI 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 O.41 (1994): "Psophometer for use on telephone-type circuits".
[7] ITU-R Recommendation SM.332-4: "Selectivity of receivers".
[8] ETSI TR 100 028-1 (2001): "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Uncertainties in the measurement of mobile radio equipment characteristics; Part 1".
ETSI
9 ETSI EN 301 178-1 V1.2.1 (2003-12)
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
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
integral antenna: antenna that is permanently fixed to the equipment and not detachable by the user
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 × 10 Pa
emf Electromotive force
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ad amplitude difference
DSC Digital Selective Calling
EUT Equipment Under Test
fd frequency difference
GMDSS Global Maritime Distress and Safety System
IF Intermediate Frequency
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.
ETSI
10 ETSI EN 301 178-1 V1.2.1 (2003-12)
Technical documentation shall be supplied with the equipment.
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 limited to an output power of 1 W by appropriate means. Additional VHF
channels outside those defined by appendix 18 to the Radio Regulations [1] may also be provided, but means shall be
provided to block any channel, including appendix 18 channels, as may be required by the licence before installation on
board vessels. It shall not be possible for the user to unblock any blocked channels.
The equipment shall be so designed that use of channel 70 for purposes other than DSC is prevented
(see ITU-R Recommendations M.493-10 [3] and M.541-8 [4]), and that use of channels AIS1 and AIS2 for purposes other
than AIS is prevented.
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.
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.
Channel 16 shall be distinctively marked. Selection of channel 16, shall be preferably by readily accessible means
(e.g. a distinctively marked key). Selection of channel 16 by any means shall automatically set the transmitter output
power to maximum. This power level may subsequently be reduced by manual user control if required.
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 W;
- 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 301 178-1 V1.2.1 (2003-12)
4.3 Microphone and loudspeaker
The equipment shall be fitted with an integral microphone an
...