SIST EN 302 454-2 V1.1.1:2007

• Abstract:

  The present document applies to Radiosondes in the Meteorological Aids service as described in the scope of EN 302 454-1 [2]. The present document is intended to cover the provisions of article 3.2 of Directive 1999/5/EC (R&TTE Directive) [1], which states that "... radio equipment shall be so constructed that it effectively uses the spectrum allocated to terrestrial/space radio communications and orbital resources so as to avoid harmful interference".

• Status: Published
• Publication Date: 05-Nov-2007
• ICS: 07.060 - Geology. Meteorology. Hydrology
• ICS: 33.060.99 - Other equipment for radiocommunications
• ICS: 33.100.01 - Electromagnetic compatibility in general
• Technical Committee: MOC - Mobile Communications
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 05-Nov-2007
• Due Date: 10-Jan-2008
• Completion Date: 06-Nov-2007
• Directive: 1999/5/EC - 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 of their conformity
• Directive:

  ---

  TRRTP124 - Splošni akt o načrtu uporabe radijskih frekvenc (NURF-4)
• Mandate: M/284
• Ref Project: ETSI EN 302 454-2 V1.1.1 (2007-07) - Electromagnetic compatibility and Radio spectrum Matters (ERM); Meteorological Aids (Met Aids); Radiosondes to be used in the 1 668,4 MHz to 1 690 MHz frequency range; Part 2: Harmonized EN covering essential requirements of article 3.2 of the R&TTE Directive

SIST EN 302 454-2 V1.1.1:2007 is the Slovenian adoption of ETSI EN 302 454-2 V1.1.1 (2007-07). It covers radiosondes used in the 1 668,4 MHz to 1 690 MHz range and states how they address the essential requirements of article 3.2 of the R&TTE Directive. Manufacturers, test labs and compliance teams use it to check that a radiosonde uses the allocated spectrum in a way that avoids harmful interference.

What does SIST EN 302 454-2 V1.1.1:2007 specify?

SIST EN 302 454-2 V1.1.1:2007 specifies the harmonized EN requirements for radiosondes in the Meteorological Aids service. The document is part 2 of a multi-part deliverable, and it focuses on essential requirements for spectrum use under article 3.2 of the R&TTE Directive.

The standard is organized into scope, references, definitions/symbols/abbreviations, technical requirements, compliance testing, interpretation of results, and three annexes.

Annex	What it covers
Annex A	HS Requirements and conformance Test specifications Table (HS-RTT)
Annex B	EN title in the official languages
Annex C	Bibliography

What are the key requirements of SIST EN 302 454-2 V1.1.1:2007?

SIST EN 302 454-2 V1.1.1:2007 sets out the transmitter limits and the test approach that supports presumption of conformity. In practice, it tells a manufacturer which radio characteristics must be controlled, how they are tested, and how the results are judged.

• Declared environmental profile - Clause 4.1 says the equipment shall meet the technical requirements within the supplier-declared operational environmental profile. This matters because the product must still comply under the real conditions the supplier claims, not only in a narrow lab setting.
• Frequency error - Clause 4.2.1 applies to all transmitters and uses the frequency error limits referenced from EN 302 454-1. This keeps the radiosonde on the intended channel and reduces the risk of interference.
• Carrier power (conducted) - Clause 4.2.2 applies when the transmitter may be used without an integral or dedicated antenna. That means the conducted output path has to stay within the referenced limits.
• Effective radiated power - Clause 4.2.3 applies to transmitters with an integral or dedicated antenna. This is the radiated-power check that matters when the antenna is part of the product design.
• Transmission power spectral density - Clause 4.2.4 applies to all digitally modulated transmitters. It controls how the signal energy is spread in frequency, which helps limit interference to nearby users.
• Spurious emissions - Clause 4.2.5 applies to all digitally modulated transmitters. It addresses unwanted emissions outside the intended signal and is a key part of spectrum hygiene.
• Frequency stability under low-voltage conditions - Clause 4.2.6 checks whether the transmitter stays within the referenced conditions when supply voltage is low. This matters for radiosondes because battery or supply variation can shift radio behavior.
• Compliance testing and uncertainty - Clause 5 requires normal test conditions, and extreme conditions where stated, plus the specified test power source and sample selection from EN 302 454-1. Clause 6 says the measured value versus the limit decides compliance, and the measurement uncertainty must be reported separately and kept within the stated limits.

Annex A ties each essential requirement to its test specification and marks the tests that form the Essential Radio Test Suite. That helps a test lab know which procedures are part of the core compliance path.

What terms does SIST EN 302 454-2 V1.1.1:2007 define?

SIST EN 302 454-2 V1.1.1:2007 relies on definitions from the R&TTE Directive and EN 302 454-1, rather than restating them here. The key terms and abbreviations used on the page include:

• Radiosonde - a radio instrument covered here for use in the Meteorological Aids service in the 1 668,4 MHz to 1 690 MHz band.
• Meteorological Aids (Met Aids) - the service area for the radiosondes covered by this standard.
• Electromagnetic compatibility and Radio spectrum Matters (ERM) - the ETSI technical area responsible for this standard.
• R&TTE Directive - Directive 1999/5/EC, the legal framework this harmonized standard supports.
• HS-RTT - the Harmo­nized Standard Requirements and conformance Test specifications Table in Annex A.
• EN 302 454-1 - the companion part that supplies the underlying technical characteristics, definitions and test methods used throughout this part.

Who uses SIST EN 302 454-2 V1.1.1:2007?

SIST EN 302 454-2 V1.1.1:2007 is used by radiosonde manufacturers, compliance engineers, test laboratories and quality managers. Manufacturers use it to design the transmitter and to prepare the environmental profile and test evidence. Test labs use it to run the transmitter suites and record uncertainty in the test report. Buyers and procurement teams in meteorological and radio-equipment supply chains use it to check whether a product is built and tested against the harmonized conformity route.

Which standards are used with SIST EN 302 454-2 V1.1.1:2007?

• Directive 1999/5/EC (R&TTE Directive) - the legal basis for the essential requirements covered by this harmonized EN.
• ETSI EN 302 454-1 (V1.1.1) - provides the technical characteristics, definitions and test methods that Part 2 references for limits and procedures.
• Directive 98/34/EC - the procedural basis mentioned in the foreword for producing the standard.
• ETSI TR 100 028 (V1.4.1) - gives the method used to calculate measurement uncertainty.
• ETSI EN 301 489-1 (V1.6.1) and ETSI EG 201 399 - listed in the bibliography as related material for EMC requirements and harmonized-standard development guidance.

What does the SIST EN 302 454-2 V1.1.1:2007 document contain?

SIST EN 302 454-2 V1.1.1:2007 contains the requirement set for radiosonde transmitter behavior, the associated compliance tests, and the rule for interpreting measurement results. Clause 4 gives the technical requirements, while Clause 5 gives the normal and extreme test conditions, the sample selection approach, and the transmitter test suites. Clause 6 explains how to compare measured values with limits and how to report measurement uncertainty.

Annex A is the most practical annex for conformity work because it maps each essential requirement to its test specification. Annex B provides the official-language titles, and Annex C lists related documents used for background and measurement practice.

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Electromagnetic compatibility and Radio spectrum Matters (ERM) - Meteorological Aids
(Met Aids) - Radiosondes to be used in the 1 668,4 MHz to 1 690 MHz frequency range -
Part 2: Harmonized EN covering essential requirements of article 3.2 of the R&TTE
Directive
Ta slovenski standard je istoveten z: EN 302 454-2 Version 1.1.1
ICS:
07.060 Geologija. Meteorologija. Geology. Meteorology.
Hidrologija Hydrology
33.060.99 Druga oprema za radijske Other equipment for
komunikacije radiocommunications
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

Harmonized European Standard (Telecommunications series)

Electromagnetic compatibility
and Radio spectrum Matters (ERM);
Meteorological Aids (Met Aids);
Radiosondes to be used in the
1 668,4 MHz to 1 690 MHz frequency range;
Part 2: Harmonized EN covering essential requirements
of article 3.2 of the R&TTE Directive

2 ETSI EN 302 454-2 V1.1.1 (2007-07)

Reference
DEN/ERM-TG25-024-2
Keywords
radio, regulation, SRD, testing, UHF
ETSI
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ETSI
3 ETSI EN 302 454-2 V1.1.1 (2007-07)
Contents
Intellectual Property Rights.4
Foreword.4
Introduction .4
1 Scope.5
2 References.5
3 Definitions, symbols and abbreviations .5
3.1 Definitions.5
3.2 Symbols.5
3.3 Abbreviations.5
4 Technical requirements specifications .6
4.1 Environmental profile.6
4.2 Transmitter requirements.6
4.2.1 Frequency error.6
4.2.2 Carrier power (conducted) .6
4.2.3 Effective radiated power.6
4.2.4 Transmission power spectral density .6
4.2.5 Spurious emissions.6
4.2.6 Frequency stability under low-voltage conditions .6
5 Testing for compliance with technical requirements.7
5.1 Essential radio test suites.7
5.1.1 Environmental conditions for testing.7
5.1.1.1 Normal and extreme test-conditions.7
5.1.1.2 Test power source .7
5.1.2 Choice of samples for test suites.7
5.1.3 Transmitter test suites .7
5.1.3.1 Frequency error.7
5.1.3.2 Carrier power (conducted) .7
5.1.3.3 Effective radiated power .7
5.1.3.4 Transmission power spectral density .7
5.1.3.5 Spurious emissions.7
5.1.3.6 Frequency stability under low-voltage conditions .8
6 Interpretation of measurement results .8
Annex A (normative): The HS Requirements and conformance Test specifications Table
(HS-RTT).9
Annex B (informative): The EN title in the official languages .11
Annex C (informative): Bibiography.13
History .14

ETSI
4 ETSI EN 302 454-2 V1.1.1 (2007-07)
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) [3] laying down a procedure for the provision of information in the
field of technical standards and regulations.
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 [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").
The present document is part 2 of a multi-part deliverable, covering digitally modulated Radiosonde transmitters in the
Meteorological Aids frequency band from 1 668,4 MHz to 1 690 MHz, as identified below:
Part 1: "Technical characteristics and test methods";
Part 2: "Harmonized EN covering essential requirements of article 3.2 of the R&TTE Directive".
Technical specifications relevant to Directive 1999/5/EC [1] are given in annex A.

National transposition dates
Date of adoption of this EN: 29 June 2007
Date of latest announcement of this EN (doa): 30 September 2007
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 March 2008
Date of withdrawal of any conflicting National Standard (dow): 30 September 2010

Introduction
The present document is part of a set of standards designed to fit in a modular structure to cover all radio and
telecommunications terminal equipment under the R&TTE Directive [1]. The modular structure is shown in
EG 201 399.
ETSI
5 ETSI EN 302 454-2 V1.1.1 (2007-07)
1 Scope
The present document applies to Radiosondes in the Meteorological Aids service as described in the scope of
EN 302 454-1 [2].
The present document is intended to cover the provisions of article 3.2 of Directive 1999/5/EC (R&TTE Directive) [1],
which states that ". radio equipment shall be so constructed that it effectively uses the spectrum allocated to
terrestrial/space radio communications and orbital resources so as to avoid harmful interference".
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.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
[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 of their
conformity (R&TTE Directive).
[2] ETSI EN 302 454-1 (V1.1.1): "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Meteorological Aids (Met Aids); Radiosondes to be used in the 1 668,4 MHz to 1 690 MHz
frequency range; Part 1: Technical characteristics and test methods".
[3] Directive 98/34/EC of the European Parliament and of the Council of 22 June 1998 laying down a
procedure for the provision of information in the field of technical standards and regulations.
[4] ETSI TR 100 028 (V1.4.1) (2001-12): "Electromagnetic compatibility and Radio spectrum Matters
(ERM); Uncertainties in the measurement of mobile radio equipment characteristics".
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in the R&TTE Directive [1] and
EN 302 454-1 [2] apply.
3.2 Symbols
For the purposes of the present document, the symbols given in EN 302 454-1 [2] apply.
3.3 Abbreviations
For the purposes of the present document, the abbreviations given in EN 302 454-1 [2] apply.
ETSI
6 ETSI EN 302 454-2 V1.1.1 (2007-07)
4 Technical requirements specifications
4.1 Environmental profile
The technical requirements of the present document apply under the environmental profile for operation of the
equipment, which shall be declared by the supplier. The equipment shall comply with all the technical requirements of
the present document at all times when operating within the boundary limits of the declared operational environmental
profile.
4.2 Transmitter requirements
4.2.1 Frequency error
The following shall be met:
- The frequency error, as defined in EN 302 454-1 [2], clause 8.1.1, shall not exceed the limits given in
EN 302 454-1 [2], clause 8.1.3.
This requirement applies to all transmitters.
4.2.2 Carrier power (conducted)
The carrier power (conducted), as defined in EN 302 454-1 [2], clause 8.2.1, shall not exceed the limits in
EN 302 454-1 [2], clause 8.2.3.
This requirement applies to transmitters, which may be used without an integral or dedicated antenna.
4.2.3 Effective radiated power
The effective radiated power, as defined in EN 302 454-1 [2], clause 8.3.1, shall not exceed the limits given in
EN 302 454-1 [2], clause 8.3.3.
This requirement applies to transmitters with an integral or dedicated antenna.
4.2.4 Transmission power spectral density
The transmission spectrum, as define
...