SIST ETS 300 162 E1:2003

SLOVENSKI STANDARD
01-december-2003
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Radio Equipment and Systems (RES); Radiotelephone transmitters and receivers for the
maritime mobile service operating in VHF bands; Technical characteristics and methods
of measurement
Ta slovenski standard je istoveten z: ETS 300 162 Edition 1
ICS:
33.060.20 Sprejemna in oddajna Receiving and transmitting
oprema equipment
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 ETS 300 162
TELECOMMUNICATION October 1993
STANDARD
Source: ETSI TC-RES Reference: DE/RES-1002
ICS: 33.060
Maritime, radiotelephone, VHF
Key words:
Radio Equipment and Systems (RES);
Radiotelephone transmitters and receivers for the
maritime mobile service operating in the VHF bands
Technical characteristics and methods of measurement
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
F-06921 Sophia Antipolis CEDEX - FRANCE
Postal address:
650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
Office address:
c=fr, a=atlas, p=etsi, s=secretariat - secretariat@etsi.fr
X.400: Internet:
Tel.: +33 92 94 42 00 - Fax: +33 93 65 47 16
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 1993. All rights reserved.
New presentation - see History box

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ETS 300 162: October 1993
Whilst every care has been taken in the preparation and publication of this document, errors in content,
typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to
"ETSI Editing and Committee Support Dept." at the address shown on the title page.

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ETS 300 162: October 1993
Contents
Foreword .7
1 Scope .9
2 Normative references.9
3 General requirements .9
3.1 Construction.9
3.2 Controls and indicators .10
3.3 Handset and loudspeaker.11
3.4 Switching time.11
3.5 Safety precautions .12
3.6 Class of emission and modulation characteristics.12
3.7 Multiple watch facilities .12
3.7.1 Additional performance standards .12
3.7.2 Scanning characteristics .13
3.8 Facilities for DSC transmission and reception.14
3.9 Labelling.14
3.10 Warm up .14
4 Test conditions, power sources and ambient temperatures .15
4.1 Normal and extreme test conditions .15
4.2 Test power source .15
4.3 Normal test conditions .15
4.3.1 Normal temperature and humidity.15
4.3.2 Normal power sources .15
4.3.2.1 Mains voltage and frequency.15
4.3.2.2 Battery power source.15
4.3.2.3 Other power sources .15
4.4 Extreme test conditions .16
4.4.1 Extreme temperatures.16
4.4.2 Extreme values of test power sources .16
4.4.2.1 Mains voltage.16
4.4.2.2 Battery power source.16
4.4.2.3 Other power sources .16
4.5 Procedure for tests at extreme temperatures.16
4.6 Environmental tests .16
4.7 Extended usage tests .17
5 General conditions of measurement .17
5.1 Arrangements for test signals applied to the receiver input.17
5.2 Squelch.17
5.3 Normal test modulation.17
5.4 Artificial antenna .17
5.5 Arrangements for test signals applied to the transmitter input .17
5.6 Tests on equipment with a duplex filter .17
5.7 Test channels .18
5.8 Measurement uncertainty and interpretation of the measured results.18
5.8.1 Measurement uncertainty.18
5.8.2 Interpretation of the measurement results .18

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ETS 300 162: October 1993
6 Transmitter . 19
6.1 Frequency error. 19
6.1.1 Definition. 19
6.1.2 Method of measurement. 19
6.1.3 Limits . 19
6.2 Carrier power. 19
6.2.1 Definitions . 19
6.2.2 Method of measurement. 19
6.2.3 Limits . 19
6.2.3.1 Normal test conditions . 19
6.2.3.2 Extreme test conditions. 20
6.3 Frequency deviation .20
6.3.1 Definition. 20
6.3.2 Maximum permissible frequency deviation. 20
6.3.2.1 Method of measurement. 20
6.3.2.2 Limits. 20
6.3.3 Reduction of frequency deviation at modulation frequencies above 3 kHz . 20
6.3.3.1 Method of measurement. 20
6.3.3.2 Limits. 20
6.4 Limitation characteristics of the modulator. 21
6.4.1 Definition. 21
6.4.2 Method of measurement. 21
6.4.3 Limits . 21
6.5 Sensitivity of the modulator, including microphone . 21
6.5.1 Definition. 21
6.5.2 Method of measurement. 22
6.5.3 Limits . 22
6.6 Audio frequency response. 22
6.6.1 Definition. 22
6.6.2 Method of measurement. 22
6.6.3 Limit . 22
6.7 Audio frequency harmonic distortion of the emission. 22
6.7.1 Definition. 22
6.7.2 Method of measurement. 22
6.7.2.1 Normal test conditions . 22
6.7.2.2 Extreme test conditions. 22
6.7.3 Limits . 23
6.8 Adjacent channel power. 23
6.8.1 Definition. 23
6.8.2 Measurement. 23
6.8.2.1 Method of measurement. 23
6.8.2.2 Power measuring receiver specification . 23
6.8.2.2.1 IF filter . 24
6.8.2.2.2 Attenuation indicator. 25
6.8.2.2.3 RMS value indicator . 25
6.8.2.2.4 Oscillator and amplifier. 25
6.8.3 Limits . 25
6.9 Conducted spurious emissions conveyed to the antenna. 26
6.9.1 Definition. 26
6.9.2 Method of measurement. 26
6.9.3 Limit . 26
6.10 Cabinet radiation and conducted spurious emissions other than those conveyed to the
antenna . 26
6.10.1 Definitions . 26
6.10.2 Method of measurement. 26
6.10.3 Limits . 26
6.11 Residual modulation of the transmitter. 27
6.11.1 Definition. 27
6.11.2 Method of measurement. 27
6.11.3 Limit . 27
6.12 Transient frequency behaviour of the transmitter. 27
6.12.1 Definitions . 27

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ETS 300 162: October 1993
6.12.2 Method of measurement .28
7 Receiver .31
7.1 Harmonic distortion and rated audio frequency output power .31
7.1.1 Definition .31
7.1.2 Methods of measurement .31
7.1.3 Limits.31
7.2 Audio frequency response .31
7.2.1 Definition .31
7.2.2 Method of measurement .32
7.2.3 Limits.32
7.3 Maximum usable sensitivity .32
7.3.1 Definition .32
7.3.2 Method of measurement .32
7.3.3 Limits.33
7.4 Co-channel rejection.33
7.4.1 Definition .33
7.4.2 Method of measurement .33
7.4.3 Limit.33
7.5 Adjacent channel selectivity.33
7.5.1 Definition .33
7.5.2 Method of measurement .33
7.5.3 Limits.34
7.6 Spurious response rejection .34
7.6.1 Definition .34
7.6.2 Method of measurement .34
7.6.3 Limit.34
7.7 Intermodulation response .34
7.7.1 Definition .34
7.7.2 Method of measurement .34
7.7.3 Limit.35
7.8 Blocking or desensitisation .35
7.8.1 Definition .35
7.8.2 Method of measurement .35
7.8.3 Limit.35
7.9 Spurious emissions.36
7.9.1 Definition .36
7.9.2 Method of measuring the power level .36
7.9.3 Method of measuring the effective radiated power .36
7.9.4 Limit.36
7.10 Amplitude response of the receiver limiter.36
7.10.1 Definition .36
7.10.2 Method of measurement .36
7.10.3 Limit.37
7.11 Receiver noise and hum level.37
7.11.1 Definition .37
7.11.2 Method of measurement .37
7.11.3 Limit.37
7.12 Squelch operation.37
7.12.1 Definition .37
7.12.2 Method of measurement .37
7.12.3 Limits.38
7.13 Squelch hysteresis.38
7.13.1 Definition .38
7.13.2 Method of measurement .38
7.13.3 Limit.38
7.14 Multiple watch characteristic.38

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ETS 300 162: October 1993
7.14.1 Definition. 38
7.14.2 Method of measurement. 39
7.14.3 Limits . 39
8 Duplex operation. 39
8.1 Receiver desensitisation with simultaneous transmission and reception. 39
8.1.1 Definition. 39
8.1.2 Method of measurement. 39
8.1.3 Limits . 40
8.2 Receiver spurious response rejection. 40
9 Interference. 40
9.1 General. 40
9.2 Conducted spurious emission into the mains. 40
9.2.1 Conditions of measurement. 40
9.2.2 Method of measurement. 40
9.2.3 Limits . 40
History. 42

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ETS 300 162: October 1993
Foreword
This European Telecommunication Standard (ETS) has been produced by the Radio Equipment and
Systems (RES) Technical Committee of the European Telecommunications Standards Institute (ETSI), and
was adopted, having passed through the ETSI standards approval procedure, (Public Enquiry 19:
1991-05-13 to 1991-10-04, Vote 27: 1992-09-21 to 1992-11-13).
This ETS lays down minimum requirements for VHF radio transmitters and receivers operating on board
ships in certain frequency bands allocated to the maritime mobile service, and incorporates the requirements
of the relevant recommendations of the International Maritime Organization.

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ETS 300 162: October 1993
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ETS 300 162: October 1993
1 Scope
This ETS states the minimum requirements for VHF transmitters and receivers fitted with a 50 Ω external
antenna socket or connector for use on board ships and operating in the bands between 156 and 174 MHz
1)
allocated to the maritime mobile service by the Radio Regulations (see Radio Regulations, Appendices 18
[1] and 19 [2]). The relevant requirements detailed in the references in Clause 2, Normative References are
incorporated in this ETS.
2 Normative references
This ETS incorporates by dated or undated reference provisions from other publications. These normative
references are cited at the appropriate places in the text and the publications are listed hereafter. For dated
references, subsequent references to or revisions of any of these publications apply to this ETS only when
incorporated in it by amendment or revision. For undated references the latest edition of the publication
referred to applies.
[1] Radio Regulations, Appendix 18 (1990): "Table of Transmitting frequencies in
the band 156-174 MHz for Stations in the Maritime Mobile Service".
[2] Radio Regulations, Appendix 19 (1990): "Technical Characteristics for
Transmitters and Receivers used in the Maritime Mobile Service in the band
156-174 MHz".
[3] CCITT Recommendation E.161 (1988): "Arrangement of figures, letters and
symbols on telephones and other devices that can be used for access to a
telephone network".
[4] CEPT Recommendation T/R 34-01: "Specifications for Maritime Mobile Radio
equipment".
[5] CCITT Recommendation P.53 (1988): "Psophometric apparatus for the
objective measurement of circuit noise".
[6] International Convention on Safety of Life at Sea.
[7] CISPR Publication 16 (1987): "CISPR specification for radio interference
measuring apparatus and measuring methods".
[8] NMEA 0183 Version 2.00: "Standard for interfacing marine electronic devices".
3 General requirements
3.1 Construction
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.

1 )
Use in certain inland waterways may impose additional requirements.

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ETS 300 162: October 1993
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.
Full 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 the Radio Regulations require a separation of 4,6 MHz between the transmitting
frequency and the receiving frequency.
The equipment shall be capable of operating on single frequency and two-frequency channels with manual
control (simplex). It may also be capable of operating on two-frequency channels without manual control
(duplex).
The equipment shall be able to operate on all channels defined in Appendix 18 to the Radio Regulations [1].
Operation on channels 75 and 76 shall be prevented 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 or all of these additional channels, as may be required by an Administration, before
installation on board ships. It shall not be possible for the user to unblock or block these additional channels.
The equipment shall be so designed that use of channel 70 for purposes other than Digital Selective Calling
(DSC) is prevented.
It shall not be possible to transmit while any frequency syntheziser used within the transmitter is out of lock.
It shall not be possible to transmit during channel switching operations.
3.2 Controls and indicators
The equipment shall have a channel selector and shall indicate the designator, as shown in Appendix 18 to
the Radio Regulations [1], of the channel at which the installation is set. The channel designator shall be
legible irrespective of the external lighting conditions.
Where practicable, channels 16 and 70 should be distinctively marked. Selection of channel 16, and if
possible channel 70, shall preferably be by readily accessible means (e.g. a distinctively marked key). Where
an input panel on the equipment for entering the digits 0 - 9 is provided, this shall conform to CCITT
Recommendation E.161 [3].
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ETS 300 162: October 1993
The equipment shall have the following additional controls and indicators:
- on/off switch for the entire installation with a visual indication that the installation is in operation;
- a manual non-locking push to talk switch to operate the transmitter;
- on/off switch for the loudspeaker;
- a switch for reducing transmitter output power to no more than 1 W;
- an audio frequency power volume control;
- a squelch control;
- a control for reducing the brightness of the equipment illumination to zero;
- an output power detector giving a visual indication that the carrier is being produced.
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;
- if the accessible controls are located on a separate console and if there are two or more control
consoles, one of the consoles shall have priority over the others. If there are two or more control
consoles, the operation of one console shall be indicated on the other consoles.
3.3 Handset and loudspeaker
The equipment shall be fitted with a telephone handset or microphone, and an integral loudspeaker and/or a
socket for an external loudspeaker. A handset is required if duplex operation is provided.
It shall be possible to switch off the loudspeaker without causing a variation in the audio frequency power
provided to the handset, if supplied.
During transmission in simplex operation the receiver output shall be muted.
During transmission in duplex operation only the handset shall be operative. Measures shall be taken to
ensure correct operation when duplex is used and precautions shall be taken to prevent harmful electrical or
acoustic feedback which might produce oscillations.
3.4 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.

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ETS 300 162: October 1993
3.5 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 if the electrical power source produces
transient voltage variations and to prevent any damage that might arise from an accidental reversal of polarity
of the electrical power source.
Means shall be provided for earthing exposed metallic parts of the equipment but this shall not cause any
terminal of the source of electrical energy to be earthed.
All components and wiring in which the dc or ac voltage (other than radio-frequency voltage), produce, singly
or in combination, peak voltages in excess of 50 V, shall be protected against any accidental access and
shall be automatically isolated from all electrical power sources if the protective covers are removed.
Alternatively, the equipment shall be constructed in such a way as to prevent access to components
operating at such voltages unless an appropriate tool is used such as a nut-spanner or screwdriver.
Conspicuous warning labels shall be affixed both inside the equipment and on the protective covers.
No damage to the equipment shall occur when the antenna terminals are placed on open circuit or short
circuit for a period of at least 5 min 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 K Ω.
The information in any volatile memory device shall be protected from interruptions in the power supply of up
to 60 s duration.
3.6 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, and G2B for DSC signalling where provided.
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.
3.7 Multiple watch facilities
3.7.1 Additional performance standards
VHF radiotelephone equipment having multiple watch facilities shall comply with the following additional
performance standards:
1) the equipment shall include a provision for the automatic scanning of a priority channel and one
additional channel. Facilities for the automatic sequential change of the additional channel may be
provided, which are not accessible to the user. Means shall be provided to block/unblock these
facilities, at the request of an Administration;
2) the priority channel is that channel which will be sampled even if there is a signal on the additional
channel and on which the receiver will lock during the time a signal is detected;

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ETS 300 162: October 1993
3) the additional channel is that channel which will be monitored during the periods the equipment is not
sampling or receiving signals on the priority channel;
4) provision shall be included to switch the scanning facility on and off by means of a manually operated
control. In addition it shall be ensured that the receiver remains on the same channel as the transmitter
for the entire duration of any communication with the ship, e.g. the scanning facility could be switched
off automatically when the handset is off its hook;
5) selection of the additional channel and selection, if provided, of the priority channel shall be possible at
the operating position of the receiver or transceiver. If selection of the priority channel is not provided,
the priority channel shall be channel 16 unless an Administration considers that an alternative channel
should be watched in a particular area;
6) when the scanning facility is in operation, the channel number of both channels on which the
equipment is operating shall be clearly indicated simultaneously;
7) in a transceiver, transmission shall not be possible when the scanning facility is operating. When the
scanning facility is switched off, both transmitter and receiver shall be tuned automatically to the
selected additional channel;
8) a transceiver shall be provided with a single manual control (e.g. push-button) in order to switch the
equipment quickly for operation on the priority channel;
9) at the operating position of a transceiver the selected additional channel shall be clearly indicated as
being the operational channel of the equipment.
3.7.2 Scanning characteristics
When the scanning facility is switched on, the priority channel shall be sampled with a sampling period of not
more than 2 s. If a signal is detected on the priority channel the receiver shall remain on this channel for the
duration of that signal.
If a signal is detected on the additional channel the sampling of the priority channel shall continue, thus
interrupting the reception on the channel for periods as short as possible and not greater than 150 ms.
The design of the receiver shall provide for its proper functioning during the period the priority channel is
sampled since the receiving conditions on the priority channel may differ from those on the additional
channel.
In the absence of a signal on the priority channel, and, during reception of a signal on the additional channel,
the duration of each listening period on this channel shall be at least 850 ms.
Means shall be provided to indicate the channel on which a signal is being received.

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ETS 300 162: October 1993
3.8 Facilities for DSC transmission and reception
VHF transmitters and receivers with an integral DSC modem or to be used with an external DSC modem
shall also be tested in accordance with the standard for DSC equipment (presently contained in CEPT
Recommendation T/R 34-01 Annex XIII [4]).
VHF transmitters and receivers to be used for DSC shall also comply with the following:
1) the DSC facility shall be capable of operating on at least channel 70;
2) if the equipment is designed for connection of an external modem to the audio frequency terminals,
the input and output impedances should be 600 Ω free of earth;
3) if the equipment is designed for connection to an external DSC modem with binary inputs and outputs
for DSC signals, the logic level and the appropriate functions shall comply with NMEA 0183 Version
2.00 [8].
3.9 Labelling
All controls, instruments, indicators and terminals shall be clearly labelled.
Details of the power supply from which the equipment is intended to operate shall be clearly indicated on the
equipment.
All units of the equipment shall be clearly marked on the exterior with the identification of the manufacturer,
type designation of the equipment, and the serial number of the unit. This marking shall be clearly visible in
the normal operating position.
The compass safe distance shall be stated on the equipment or in the technical manual.
3.10 Warm up
After being switched on the equipment shall be operational within 5 s and shall meet the requirements of this
ETS within 1 min.
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ETS 300 162: October 1993
4 Test conditions, power sources and ambient temperatures
4.1 Normal and extreme test conditions
Conformance tests shall be made under normal test conditions and also, where stated, under extreme
test conditions (subclauses 4.4.1 and 4.4.2 applied simultaneously).
4.2 Test power source
During conformance testing, the equipment shall be supplied from a test power source capable of producing
normal and extreme test voltages as specified in subclauses 4.3.2 and 4.4.2.
The internal impedance of the test power source shall be low enough for its effect on the test results to be
negligible. For the purpose of testing the power source voltage shall be measured at the input terminals of
the equipment.
During testing, the power source voltages shall be maintained within a tolerance of ± 3 % relative to the
voltage level at the beginning of each test.
4.3 Normal test conditions
4.3.1 Normal temperature and humidity
The normal temperature and humidity conditions for tests shall be a combination of temperature and humidity
within the following ranges:
temperature: + 15°C to + 35°C;
relative humidity: 20 % to 75 %.
4.3.2 Normal power sources
4.3.2.1 Mains voltage and frequency
The normal test voltage for equipment to be connected to the ac mains shall be the nominal mains voltage.
For the purpose of this ETS, the nominal voltage shall be the declared voltage or any of the declared
voltages for which the equipment is indicated as having been designed. The frequency of the test voltage
shall be 50 Hz ± 1 Hz.
4.3.2.2 Battery power source
Where the equipment is designed to operate from a battery, the normal test voltage shall be the nominal
voltage of the battery (12 V, 24 V, etc.).
4.3.2.3 Other power sources
For operation from other power sources the normal test voltage shall be that declared by the manufacturer.

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ETS 300 162: October 1993
4.4 Extreme test conditions
4.4.1 Extreme temperatures
For tests at extreme temperatures, measurements shall be made in accordance with subclause 4.5, at a
lower temperature of - 15°C and an upper temperature of + 55°C.
4.4.2 Extreme values of test power sources
4.4.2.1 Mains voltage
The extreme test voltages for equipment to be connected to the ac mains shall be the nominal mains voltage
± 10 %.
4.4.2.2 Battery power source
Where the equipment is designed to operate from a battery, the extreme test voltages shall be 1,3 and 0,9
times the nominal voltage of the battery (12 V, 24 V, etc.).
4.4.2.3 Other power sources
For operation from other power sources the extreme test voltages shall be agreed between the testing
authority and the equipment manufacturer.
4.5 Procedure for tests at extreme temperatures
The equipment shall be switched off during the temperature stabilising periods.
Before conducting tests at the upper temperature, the equipment shall be placed in the test chamber and left
until thermal equilibrium is reached. The equipment shall then be switched on for half an hour in the high
power transmit condition; the equipment shall meet the standard after this period.
For tests at the lower temperature, the equipment shall be left in the test chamber until thermal equilibrium is
reached and shall then be switched to the standby or receive position for one minute, after which the
equipment shall meet the standard.
4.6 Environmental tests
Environmental tests shall be carried out before any other tests. Where electrical tests are required, these
shall be done with normal test voltage (subclause 4.3.2) unless otherwise stated.
Where the term "performance check" is used, this means a visual inspection, a comparative test of output
RF power, transmitter frequency accuracy and receiver sensitivity to show that the equipment is functioning
and that there is no visible damage or deterioration.
The following tests shall be made under the environmental conditions detailed in the standard for
Environmental testing of maritime radio equipment presently contained in CEPT Recommendation T/R 34-01
Annex VI [4].
Vibration, Clause 4.
Dry-heat cycle, subclause 5.2.
Damp-heat cycle, Clause 6.
Low-temperature cycle, subclause 7.2.

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ETS 300 162: October 1993
4.7 Extended usage tests
The following extended usage tests shall be made under normal test conditions only:
- four 30-minute periods of transmission in the high power condition separated by 5-minute periods of
reception only.
The other tests in this ETS shall then be conducted in order to verify whether the equipment meets all the
technical requirements mentioned in Clauses 5, 6, 7 and 8.
5 General conditions of measurement
5.1 Arrangements for test signals applied to the receiver input
Test signal sources shall be connected to the receiver input in such a way that the impedance presented to
the receiver input is 50 Ω, irrespective of whether one or more test signals are applied to the receiver
simultaneously.
The levels of the test signals shall be expressed in terms of the emf at the terminals to be connected to the
receiver.
The nominal frequency of the receiver is the carrier frequency of the selected channel.
5.2 Squelch
Unless otherwise specified, the receiver squelch facility shall be made inoperative for the duration of the
conformance tests.
5.3 Normal test modulation
For normal test modulation, the modulation frequency shall be 1 kHz and the frequency deviation shall be ± 3
kHz.
The test signal shall be substantially free from spurious amplitude modulation.
5.4 Artificial antenna
When
...