SIST EN 302 054-2 V1.1.1:2004

• Abstract:

  To draft an EN under the R&TTE Directive

• Status: Published
• Publication Date: 31-Jan-2004
• ICS: 33.060.01 - Radiocommunications in general
• ICS: 33.100.01 - Electromagnetic compatibility in general
• Technical Committee: RES - Radio equipment and systems
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Feb-2004
• Due Date: 01-Feb-2004
• Completion Date: 01-Feb-2004
• 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:

  ---

  2005-01-1864 - Pravilnik o radijskih frekvencah, ki se smejo uporabljati brez odločbe o dodelitvi radijskih frekvenc
• Directive:

  ---

  TRRTP124 - Splošni akt o načrtu uporabe radijskih frekvenc (NURF-4)
• Mandate: M/284
• Ref Project: ETSI EN 302 054-2 V1.1.1 (2003-03) - Electromagnetic compatibility and Radio spectrum Matters (ERM); Meteorological Aids (Met Aids); Radiosondes to be used in the 400,15 MHz to 406 MHz frequency range with power levels ranging up to 200 mW; Part 2: Harmonized EN covering essential requirements under article 3.2 of the R&TTE Directive

Overview

SIST EN 302 054-2 V1.1.1:2004 specifies the harmonized requirements for electromagnetic compatibility (EMC) and radio spectrum usage for meteorological aids, specifically radiosondes operating within the 400,15 MHz to 406 MHz frequency range at power levels up to 200 mW. Published by the Slovenian Institute for Standardization (SIST) and harmonized under the R&TTE Directive (1999/5/EC), this standard ensures that radiosondes efficiently use allocated radio frequencies while avoiding harmful interference with other spectrum users.

Radiosondes are essential meteorological instruments, typically carried by weather balloons, that transmit critical atmospheric data to ground stations. Ensuring their radio emissions comply with European standards is vital for both the reliability of meteorological data and the protection of the radio environment.

Key Topics

• Electromagnetic Compatibility (EMC): The standard addresses the need for radiosondes to operate without causing, or being affected by, electromagnetic interference, supporting the integrity of meteorological observations and broader radio spectrum users.
• Radio Spectrum Matters: Requirements are set to ensure efficient use of UHF spectrum and minimize the risk of harmful interference.
• Transmitter Performance: The document outlines specific technical requirements for:
  • Frequency accuracy and stability
  • Effective radiated power and conducted power levels
  • Spurious emissions and transmission spectrum
  • Modulation bandwidth restrictions
  • Frequency stability under low-voltage conditions
• Testing and Conformity Assessment: Comprehensive radio test suites, including environmental testing, power source checks, and methods for sample selection, are mandatory to demonstrate conformity to essential requirements under Article 3.2 of the R&TTE Directive.

Applications

This harmonized EN is crucial for:

• Manufacturers and Suppliers of radiosondes intended for the European market, enabling product compliance and access to the EU market without barriers.
• Meteorological Agencies and Weather Services relying on the deployment of compliant radiosondes for national weather monitoring and forecasting efforts.
• Conformity Assessment Bodies and Laboratories that conduct testing and certification of radio equipment to ensure legal and technical compliance.
• Design Engineers developing or integrating meteorological sensor systems with radio communication modules in the UHF band.

The standard’s scope ensures that any radiosonde or related meteorological equipment using this frequency range can be deployed confidently, with minimized risk of interference to other vital radio services.

Related Standards

Several other European and international standards are referenced or complement SIST EN 302 054-2:

• EN 302 054-1: Technical characteristics and test methods for radiosondes in the same frequency band.
• EN 301 489 (all parts): EMC standards for various types of radio equipment and services.
• ETR 028: Guidance on measurement uncertainties for mobile radio equipment.
• R&TTE Directive (1999/5/EC): Overarching directive for radio equipment and telecommunications terminal equipment.
• EMC Directive (89/336/EEC): Broader rules for electromagnetic compatibility across electrical equipment.
• CEPT/ERC/REC 70-03: Recommendations on short-range device spectrum use in Europe.

Practical Value

Complying with SIST EN 302 054-2 V1.1.1:2004 ensures that radiosondes are legally deployable across Europe, meet stringent EMC and radio spectrum usage requirements, and contribute to the reliability of meteorological data collection. By adhering to these harmonized standards, stakeholders can support operational efficiency, regulatory acceptance, and technological advancement in meteorological monitoring and environmental protection.

SLOVENSKI STANDARD
01-februar-2004
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Electromagnetic compatibility and Radio spectrum Matters (ERM); Meteorological Aids
(Met Aids); Radiosondes to be used in the 400,15 MHz to 406 MHz frequency range with
power levels ranging up to 200 mW; Part 2: Harmonized EN covering essential
requirements under article 3.2 of the R&TTE Directive
Ta slovenski standard je istoveten z: EN 302 054-2 Version 1.1.1
ICS:
33.060.01 Radijske komunikacije na Radiocommunications in
splošno general
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.

Candidate Harmonized European Standard (Telecommunications series)

Electromagnetic compatibility
and Radio spectrum Matters (ERM);
Meteorological Aids (Met Aids);
Radiosondes to be used in the 400,15 MHz to 406 MHz
frequency range with power levels ranging up to 200 mW;
Part 2: Harmonized EN covering essential requirements
under article 3.2 of the R&TTE Directive

2 ETSI EN 302 054-2 V1.1.1 (2003-03)

Reference
DEN/ERM-TG28-0412-2
Keywords
Radio, regulation, short range, testing, UHF
ETSI
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ETSI
3 ETSI EN 302 054-2 V1.1.1 (2003-03)
Contents
Intellectual Property Rights.4
Foreword.4
Introduction .5
1 Scope.7
2 References.7
3 Definitions, symbols and abbreviations .8
3.1 Definitions.8
3.2 Symbols.8
3.3 Abbreviations.8
4 Technical requirements specifications.8
4.1 Transmitter requirements.8
4.1.1 Frequency error or frequency drift.8
4.1.2 Carrier power (conducted) .8
4.1.3 Effective radiated power.8
4.1.4 Transmission spectrum.8
4.1.5 Range of modulation bandwidth.9
4.1.6 Spurious emissions.9
4.1.7 Frequency stability under low-voltage conditions .9
5 Testing for compliance with technical requirements.9
5.1 Essential radio test suites.9
5.1.1 Environmental conditions for testing.9
5.1.1.1 Normal and extreme test-conditions.9
5.1.1.2 Test power source .9
5.1.2 Choice of samples for test suites.9
5.1.3 Transmitter test suites.9
5.1.3.1 Frequency error or drift.9
5.1.3.2 Carrier power (conducted) .9
5.1.3.3 Effective radiated power .10
5.1.3.4 Range of modulation bandwidth .10
5.1.3.5 Transmission spectrum.10
5.1.3.6 Spurious emissions.10
5.1.3.7 Frequency stability under low-voltage conditions .10
6 Interpretation of measurement results .10
Annex A (normative): The EN Requirements Table (EN-RT) .12
Annex B (informative): Bibliography.13
Annex C (informative): The EN title in the official languages .14
History .15

ETSI
4 ETSI EN 302 054-2 V1.1.1 (2003-03)
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).
All published ETSI deliverables shall include information which directs the reader to the above source of information.
Foreword
This Candidate 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 [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 400,15 MHz to 406 MHz, as identified below:
Part 1: "Technical characteristics and test methods";
Part 2: "Harmonized EN covering essential requirements under 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: 14 March 2003
Date of latest announcement of this EN (doa): 30 June 2003
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 December 2003
Date of withdrawal of any conflicting National Standard (dow): 30 June 2006

ETSI
5 ETSI EN 302 054-2 V1.1.1 (2003-03)
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]. Each standard is a module in the structure.
The modular structure is shown in figure 1.

Disability*
3.3f
Emergency*
3.3e
Fraud*
3.3d
3.3c
Privacy*
No harm to the network*
3.3b
* If needed
Scoped by
Interworking via the network*
equipment
3.3a class or type
Interworking with the network
Use of spectrum
3.2
New radio harmonized standards
Spectrum
Scoped by frequency and/or equipment type
Radio Product EMC
EN 301 489 multi-part EMC standard
3.1b
EMC
Generic and product standards also notified under EMC Directive
- If needed, new standards for human exposure to
Electromagnetic Fields,
- if needed, new standards for acoustic safety
3.1a
Standards also notified under LV Directive
Safety
Non-radio Radio (RE)
TTE Non-TTE
Figure 1: Modular structure for the various standards used under the R&TTE Directive [1]
ETSI
6 ETSI EN 302 054-2 V1.1.1 (2003-03)
The left hand edge of the figure 1 shows the different clauses of article 3 of the R&TTE Directive [1].
For article 3.3 various horizontal boxes are shown. Dotted lines indicate that at the time of publication of the present
document essential requirements in these areas have to be adopted by the Commission. If such essential requirements
are adopted, and as far and as long as they are applicable, they will justify individual standards whose scope is likely to
be specified by function or interface type.
The vertical boxes show the standards under article 3.2 for the use of the radio spectrum by radio equipment. The
scopes of these standards are specified either by frequency (normally in the case where frequency bands are
harmonized) or by radio equipment type.
For article 3.1b figure 1 shows EN 301 489 [6], the multi-part product EMC standard for radio used under the EMC
Directive [7].
For article 3.1a figure 1 shows the existing safety standards currently used under the LV Directive [5] and new
standards covering human exposure to electromagnetic fields. New standards covering acoustic safety may also be
required.
The bottom of figure 1 shows the relationship of the standards to radio equipment and telecommunications terminal
equipment. A particular equipment may be radio equipment, telecommunications terminal equipment or both. A radio
spectrum standard will apply if it is radio equipment. An article 3.3 standard will apply as well only if the relevant
essential requirement under the R&TTE Directive [1] is adopted by the Commission and if the equipment in question is
covered by the scope of the corresponding standard. Thus, depending on the nature of the equipment, the essential
requirements under the R&TTE Directive [1] may be covered in a set of standards.
The modularity principle has been taken because:
• it minimizes the number of standards needed. Because equipment may, in fact, have multiple interfaces and
functions it is not practicable to produce a single standard for each possible combination of functions that may
occur in an equipment;
• it provides scope for standards to be added:
- under article 3.2 when new frequency bands are agreed; or
- under article 3.3 should the Commission take the necessary decisions;
without requiring alteration of standards that are already published;
• it clarifies, simplifies and promotes the usage of Harmonized Standards as the relevant means of conformity
assessment.
ETSI
7 ETSI EN 302 054-2 V1.1.1 (2003-03)
1 Scope
The present document applies to Radiosonde
...